`____________
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`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`____________
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`APPLE INC. & MICROSOFT CORPORATION
`Petitioners
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`v.
`
`Neodron, Ltd.
`Patent Owner
`____________
`
`Case No. IPR2020-00779
`U.S. Patent No. 7,903,092
`____________
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`DECLARATION OF DR. TONY GIVARGIS
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`I, Tony Givargis, hereby declare the following:
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`I.
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`INTRODUCTION
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`1.
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`I, Tony Givargis, have been retained by counsel for Petitioners as a
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`technical expert in the above-captioned case. Specifically, I have been asked to
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`render certain opinions in regard to the IPR petition with respect to U.S. Patent No.
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`7,903,092 (the “’092 Patent”). I understand that the Challenged Claims are claims
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`1-14. My opinions are limited to those Challenged Claims.
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`2. My compensation in this matter is not based on the substance of my
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`opinions or the outcome of this matter. I have no financial interest in Petitioner. I
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`am being compensated at an hourly rate of $500 for my analysis and testimony in
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`this case.
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`3.
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`In reaching my opinions in this matter, I have reviewed the following
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`materials:
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`• Exhibit 1001 - U.S. Patent No. 7,903,092 (“the ’092 Patent”)
`• Exhibit 1002 - The ’092 Patent File History
`• Exhibit 1004 - JP 2,666,900 to Yasuhiro, et al. (“Yasuhiro”)
`• Exhibit 1005 - U.S. Patent No. 6,696,985 to Houston (“Houston”)
`• Exhibit 1006 - U.S. Patent Publication 2004/0008129 to Philipp
`(“Philipp”)
`• Exhibit 1007 - PCT/AU86/00043 published as WO 87/04851
`(“PCT/AU86/00043”)
`• Exhibit 1008 - Updated Joint Proposed Claim Construction Brief
`• Exhibit 1009 - U.S. Patent No. 7,545,366 to Sugimoto, et al.
`(“Sugimoto”)
`• Exhibit 1010 - U.S. Patent No. 6,256,021 to Singh (“Singh”)
`• Exhibit 1011 - U.S. Patent No. 6,543,684 to White, et al. (“White”)
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`A. Background and Qualifications
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`4.
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`I am a Professor in the department of Computer Science at the
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`University of California, Irvine (UCI) since July of 2001. I served as the Associate
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`Dean in the School of Information and Computer Sciences at UCI from 2011 to
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`2016. I am currently, serving as the Vice Chair of the department of Computer
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`Science at UCI. I graduated Cum Laude with a Bachelor of Science in Computer
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`Science in 1997 and PhD in Computer Science in 2001 from the University of
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`California, Riverside. My PhD thesis was entitled “System-Level Exploration for
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`Pareto-Optimal Configurations in Parameterized System-on-a-Chip.” It received
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`the School’s Best Thesis Award that year.
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`5. My research interests are generally directed at various aspects of the
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`design of Embedded Systems. Embedded Systems are computing devices that
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`operate within a larger system and include things such as consumer electronics,
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`handheld devices, office equipment, industrial equipment, medical devices,
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`autonomous and self-driving vehicles, and many other types of systems. Embedded
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`systems are characterized as having rich sensing capabilities (e.g., keypads and touch
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`sensitive input devices, heat/pressure sensors, etc.), actuation capabilities (e.g.,
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`displays, robotic arms, etc.) and heavy control logic (e.g., programmable embedded
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`processors, dedicated processing elements and extensive software logic). More
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`specifically, my research focuses on software for Embedded Systems, real-time
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`systems, Internet of Things devices, mobile and handheld devices, ML/AI control
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`algorithms for Cyber Physical Systems, compilers for embedded software and code
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`transformations techniques for efficient software to hardware migration.
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`6.
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`In addition to research, I exclusively teach the embedded systems
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`courses at UCI both at the undergraduate as well as the graduate courses. My upper
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`division Embedded Systems courses (CS 145 and CS 145L) are immensely popular
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`with yearly enrollments exceeding 350 students. In these courses, students build a
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`number of Embedded Systems from ground up out of components, including
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`keypads and touch sensitive input devices. Additionally, they program the compute
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`elements of their systems with various algorithms and application logic in order to
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`solve a problem. I also teach the graduate embedded software course (CS245) that
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`covers more advanced topics related to Embedded Systems design, including
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`modeling, design and validation of complex devices.
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`7.
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`I have co-authored two textbooks on Embedded Systems design that are
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`widely used in academia. In 2011, I received the prestigious ASEE's Frederick
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`Emmons Terman Award for having authored these textbooks and advanced higher
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`education in the areas of Embedded Systems. I have published over 100 peer-
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`reviewed and archived conference and journal papers. I have 13 issued US Patents
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`to my name. I have advised and graduated eight accomplished PhD students that are
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`currently professors, research scientists, software engineers and technical leaders in
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`their respective fields. Over the years, as a consultant, I have designed a number of
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`embedded system products and served as technical expert and consultant for
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`numerous corporations in the technology sector. I am currently serving on a number
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`of Technical Program Committees of conferences related to Embedded Systems. I
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`am an Associate Editor of the Computer Science & Engineering section of
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`Electronics Journal. For additional relevant background, I direct your attention to
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`my Curriculum Vitae attached as Appendix A.
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`II. LEGAL FRAMEWORK
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`8.
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`I am a technical expert and do not offer any legal opinions. However,
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`counsel has informed me as to certain legal principles regarding patentability and
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`related matters under United States patent law, which I have applied in performing
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`my analysis and arriving at my technical opinions in this matter.
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`9.
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`I have been informed that the Patent Trial and Appeal Board (“PTAB”)
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`now applies the claim construction standard applied by Article III courts (i.e., the
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`Phillips standard) regardless of whether a patent has expired. I have been informed
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`that under the Phillips standard, claim terms are to be given the meaning they would
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`have to a person having ordinary skill in the art at the time of the invention, taking
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`into consideration the patent, its file history, and, secondarily, any applicable
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`extrinsic evidence (e.g., dictionary definitions). I have reviewed the construction of
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`“touch” proposed in the Petition and have applied it below where applicable. For all
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`other claim language, I have applied the plain and ordinary meaning of the language,
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`considering the intrinsic record.
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`10.
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`I have also been informed that a person cannot obtain a patent on an
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`invention if the differences between the invention and the prior art are such that the
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`subject matter as a whole would have been obvious at the time the invention was
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`made to a person having ordinary skill in the art. I have been informed that a
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`conclusion of obviousness may be founded upon more than a single item of prior art.
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`I have been further informed that obviousness is determined by evaluating the
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`following factors: (1) the scope and content of the prior art, (2) the differences
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`between the prior art and the claim at issue, (3) the level of ordinary skill in the
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`pertinent art, and (4) secondary considerations of non-obviousness. In addition, the
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`obviousness inquiry should not be done in hindsight. Instead, the obviousness
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`inquiry should be done through the eyes of a person of ordinary skill in the relevant
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`art at the time the patent was filed.
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`11.
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`In considering whether certain prior art renders a particular patent claim
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`obvious, counsel has informed me that I can consider the scope and content of the
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`prior art, including the fact that one of skill in the art would regularly look to the
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`disclosures in patents, trade publications, journal articles, industry standards,
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`product literature and documentation, texts describing competitive technologies,
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`requests for comment published by standard setting organizations, and materials
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`from industry conferences, as examples. I have been informed that for a prior art
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`reference to be proper for use in an obviousness analysis, the reference must be
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`“analogous art” to the claimed invention. I have been informed that a reference is
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`analogous art to the claimed invention if: (1) the reference is from the same field of
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`endeavor as the claimed invention (even if it addresses a different problem); or (2)
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`the reference is reasonably pertinent to the problem faced by the inventor (even if it
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`is not in the same field of endeavor as the claimed invention). In order for a reference
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`to be “reasonably pertinent” to the problem, it must logically have commended itself
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`to an inventor's attention in considering his problem. In determining whether a
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`reference is reasonably pertinent, one should consider the problem faced by the
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`inventor, as reflected either explicitly or implicitly, in the specification. I believe
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`that all of the references that my opinions in this IPR are based upon are well within
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`the range of references a person of ordinary skill in the art would consult to address
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`the type of problems described in the Challenged Claims.
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`12.
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`I have been informed that, in order to establish that a claimed invention
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`was obvious based on a combination of prior art elements, a clear articulation of the
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`reason(s) why a claimed invention would have been obvious must be provided.
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`Specifically, I am informed that, under the U.S. Supreme Court’s KSR decision, a
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`combination of multiple items of prior art renders a patent claim obvious when there
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`was an apparent reason for one of ordinary skill in the art, at the time of the invention,
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`to combine the prior art, which can include, but is not limited to, any of the following
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`rationales: (A) combining prior art methods according to known methods to yield
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`predictable results; (B) substituting one known element for another to obtain
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`predictable results; (C) using a known technique to improve a similar device in the
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`same way; (D) applying a known technique to a known device ready for
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`improvement to yield predictable results; (E) trying a finite number of identified,
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`predictable potential solutions, with a reasonable expectation of success; (F)
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`identifying that known work in one field of endeavor may prompt variations of it for
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`use in either the same field or a different one based on design incentives or other
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`market forces if the variations are predictable to one of ordinary skill in the art; or
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`(G) identifying an explicit teaching, suggestion, or motivation in the prior art that
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`would have led one of ordinary skill to modify the prior art reference or to combine
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`the prior art references to arrive at the claimed invention.
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`13.
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`I am informed that the existence of an explicit teaching, suggestion, or
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`motivation to combine known elements of the prior art is a sufficient, but not a
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`necessary, condition to a finding of obviousness. This so-called “teaching
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`suggestion-motivation” test is not the exclusive test and is not to be applied rigidly
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`in an obviousness analysis. In determining whether the subject matter of a patent
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`claim is obvious, neither the particular motivation nor the avowed purpose of the
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`patentee controls. Instead, the important consideration is the objective reach of the
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`claim. In other words, if the claim extends to what is obvious, then the claim is
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`invalid. I am further informed that the obviousness analysis often necessitates
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`consideration of the interrelated teachings of multiple patents, the effects of demands
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`known to the technological community or present in the marketplace, and the
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`background knowledge possessed by a person having ordinary skill in the art. All
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`of these issues may be considered to determine whether there was an apparent reason
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`to combine the known elements in the fashion claimed by the patent.
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`14.
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`I also am informed that in conducting an obviousness analysis, a precise
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`teaching directed to the specific subject matter of the challenged claim need not be
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`sought out because it is appropriate to take account of the inferences and creative
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`steps that a person of ordinary skill in the art would employ. The prior art considered
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`can be directed to any need or problem known in the field of endeavor at the time of
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`invention and can provide a reason for combining the elements of the prior art in the
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`manner claimed. In other words, the prior art need not be directed towards solving
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`the same specific problem as the problem addressed by the patent. Further, the
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`individual prior art references themselves need not all be directed towards solving
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`the same problem. I am informed that, under the KSR obviousness standard,
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`common sense is important and should be considered. Common sense teaches that
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`familiar items may have obvious uses beyond their primary purposes.
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`15.
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`I also am informed that the fact that a particular combination of prior art
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`elements was “obvious to try” may indicate that the combination was obvious even
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`if no one attempted the combination. If the combination was obvious to try
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`(regardless of whether it was actually tried) or leads to anticipated success, then it is
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`likely the result of ordinary skill and common sense rather than innovation. I am
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`further informed that in many fields it may be that there is little discussion of obvious
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`techniques or combinations, and it often may be the case that market demand, rather
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`than scientific literature or knowledge, will drive the design of an invention. I am
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`informed that an invention that is a combination of prior art must do more than yield
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`predictable results to be non-obvious.
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`16.
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`I am informed that for a patent claim to be obvious, the claim must be
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`obvious to a person of ordinary skill in the art at the time of the invention. I am
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`informed that the factors to consider in determining the level of ordinary skill in the
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`art include (1) the educational level and experience of people working in the field at
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`the time the invention was made, (2) the types of problems faced in the art and the
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`solutions found to those problems, and (3) the sophistication of the technology in the
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`field.
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`17.
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`I am informed that it is improper to combine references where the
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`references teach away from their combination. I am informed that a reference may
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`be said to teach away when a person of ordinary skill in the relevant art, upon reading
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`the reference, would be discouraged from following the path set out in the reference,
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`or would be led in a direction divergent from the path that was taken by the patent
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`applicant. In general, a reference will teach away if it suggests that the line of
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`development flowing from the reference’s disclosure is unlikely to be productive of
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`the result sought by the patentee. I am informed that a reference teaches away, for
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`example, if (1) the combination would produce a seemingly inoperative device, or
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`(2) the references leave the impression that the product would not have the property
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`sought by the patentee. I also am informed, however, that a reference does not teach
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`away if it merely expresses a general preference for an alternative invention but does
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`not criticize, discredit, or otherwise discourage investigation into the invention
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`claimed.
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`18.
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`I am informed that even if a prima facie case of obviousness is
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`established, the final determination of obviousness must also consider “secondary
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`considerations” if presented. In most instances, the patentee raises these secondary
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`considerations of non-obviousness. In that context, the patentee argues an invention
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`would not have been obvious in view of these considerations, which include: (a)
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`commercial success of a product due to the merits of the claimed invention; (b) a
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`long-felt, but unsatisfied need for the invention; (c) failure of others to find the
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`solution provided by the claimed invention; (d) deliberate copying of the invention
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`by others; (e) unexpected results achieved by the invention; (f) praise of the
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`invention by others skilled in the art; (g) lack of independent simultaneous invention
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`within a comparatively short space of time; (h) teaching away from the invention in
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`the prior art.
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`19.
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`I am further informed that secondary considerations evidence is only
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`relevant if the offering party establishes a connection, or nexus, between the
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`evidence and the claimed invention. The nexus cannot be based on prior art features.
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`The establishment of a nexus is a question of fact. While I understand that the Patent
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`Owner here has not offered any secondary considerations at this time, I will
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`supplement my opinions in the event that the Patent Owner raises secondary
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`considerations during the course of this proceeding.
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`III. OPINION
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`A. Level of a Person of Ordinary Skill in the Art
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`20.
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`I was asked to provide my opinion as to the level of skill of a person
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`having ordinary skill in the art (“PHOSITA”) of the ’092 Patent at the time of the
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`claimed invention, which counsel has told me to assume is May 25, 2006. In
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`determining the characteristics of a hypothetical person of ordinary skill in the art of
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`the ’092 Patent, I considered several factors, including the type of problems
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`encountered in the art, the solutions to those problems, the rapidity with which
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`innovations are made in the field, the sophistication of the technology, and the
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`education level of active workers in the field. I also placed myself back in the time
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`frame of the claimed invention and considered the colleagues with whom I had
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`worked at that time.
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`21.
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`In my opinion, a PHOSITA at the time of the claimed invention of the
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`’092 Patent would have had at least a bachelor's degree in electrical engineering,
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`computer engineering, computer science, or a related field, and at least two years of
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`experience in the research, design, development, and/or testing of touch sensors,
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`human-machine interaction and interfaces, and/or graphical user interfaces, and
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`related firmware and software, or the equivalent, with additional education
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`substituting for experience and vice versa. Such a PHOSITA would have been
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`capable of understanding the ’092 patent and the prior art references discussed
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`herein.
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`22. Based on my education, training, and professional experience in the field
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`of the claimed invention, I am familiar with the level and abilities of a person of
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`ordinary skill in the art at the time of the claimed invention. Additionally, I met at
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`least these minimum qualifications to be a person having ordinary skill in the art as
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`of the time of the claimed invention of the ’092 Patent.
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`C. Claimed Invention in the ’092 Patent
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`23. The ’092 Patent describes an apparatus and method for resolving keying
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`ambiguity when a user simultaneously presses two keys (also referred to as “sensing
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`areas”), where the intended key is selected based on a key’s position compared to
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`the position of the other simultaneously pressed keys in a sensing region. ’092 Patent
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`at Abstract; see also id. at 1:7-14. More particularly, the ’092 Patent provides a
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`touch-user interface comprising an array of capacitive keys for generating output
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`signals in response to capacitive changes from a user’s finger. Id. In order to prevent
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`accidental false inputs from keys adjacent to a user-intended key, the ’092 Patent
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`describes embodiments using position-dependent priority rankings to select the key
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`with a higher priority. Id. at 3:15-34.
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`24. For example, the ’092 Patent explains that each key may be associated
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`with a predefined priority ranking according to its position within a sensing region
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`(e.g., keyboard). Id; see also id. at Fig. 3:
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`Figure 3 depicts a sensing region comprising keys arranged in rows and columns,
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`where each key may be associated with priority ranking by row and keys in the top
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`row—relative to a user’s finger approaching from the bottom—are assigned a higher
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`priority than the rows below. Id. at 3:15-34. This ranking scheme preferentially
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`selects keys in the higher rows when compared to the keys positioned in the rows
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`below it. Id.; see also id. at Figs 4 and 5 (illustrating alternative ranking schemes
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`based on the angle of approach of a user’s finger).
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`25. The ’092 Patent further describes an additional ranking scheme that
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`weights output signals generated from a user’s key-touch according to positions of
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`the keys within the sensing region. Id. at 3:35-49. This weighting may optionally be
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`applied by using scaling factors associated with corresponding keys based on their
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`position. Id.; see also id. at 11:9-34 (describing that a scale factor may be associated
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`with each priority rank, e.g., a priority rank of 1 receives a scale factor of 2, priority
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`rank of 2 receives a scale factor of 1.5, etc.). Keys with higher scale factors may be
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`selected over keys with lower scale factors. Id. (noting further that “the key having
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`the highest weighted output signal is [] deemed to be the selected key”).
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`D. Obviousness regarding Yasuhiro
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`i. Overview of Yasuhiro
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`26. Yasuhiro discloses a non-touch switch device comprising an array of
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`planar capacitor sensors, referred to therein as “non-touch switches,” for detecting
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`changes in capacitance resulting from the approach of a user’s finger. Yasuhiro at
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`2:¶1; see also id. at Fig. 8 (depicting a multiplicity of non-touch switches arranged
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`adjacent to each other in matrix form):
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`Yasuhiro refers to PCT/AU86/00043, a patent owned by Intel Electronics Ltd., for a
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`more detailed description of the operation of non-touch switches. Yasuhiro at 1:¶3.
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`This PCT explains that “non-touch switches” are simply capacitive switches or keys
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`for providing “accurate detection of a person’s finger through glass or plastic on a
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`capacitive sensor.” PCT/AU86/00043 (Ex. 1007), 1:16-2:15. Based on Yasuhiro’s
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`description and this PCT publication, I understand Yasuhiro’s “non-touch switches”
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`to be capable of detecting capacitive changes from either a user physically touching
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`the touch-interface, such as glass or plastic overlaying the capacitive switches, or a
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`user’s finger coming in close proximity to the same interface.
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`27. My understanding that Yasuhiro’s non-touch switches can detect both
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`proximity and physical touch is further confirmed by Fig. 7, which depicts a more
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`significant capacitive change where the user’s finger is closer to the interface than
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`where the user’s finger is further from the interface. A PHOSITA would understand
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`that this same principle applies when a user’s finger makes physical contact with the
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`surface—the capacitive change continues to increase as the finger approaches and is
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`registered as activating the switch whether in close proximity or physical contact.
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`Turning to the figure itself, as a user’s finger approaches the surface of the non-touch
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`switches, the user’s finger acts as a “third electrode,” reducing the charge
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`distribution as illustrated in Figures 7(a)-(b) below:
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`This reduction in charge consequently reduces the capacitance signal of the non-
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`touch switch when compared to its “normal state.” Id. at 2:¶1; see also id. at Figs.
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`6(a)-(b) (depicting the reduction of capacitance signal from a normal state (Fig. 6a)
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`to a touched stated (Fig. 6b):
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`28.
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`In response, a measurement circuit including transistor Q1 detects this
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`reduction in capacitance (referred to as an “output pulse”) and sends this output
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`detection pulse signal through various signal transformation circuits (DC component
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`removing circuit 11, amplifier circuit 12, and peak-hold circuit 13) to comparator
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`14, to compare the output detection pulse signal’s peak value with the peak value of
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`a “reference value” retained within the computation and control circuit 10, where
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`this reference value was produced right as the non-touch switch device was powered
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`on. Id. at 2:¶¶2; 7; see also id. at Fig. 3:
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`29. The output of comparator 14 is then input into the computation and
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`control circuit, where if the measured output pulse detection signal is below the
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`reference value (i.e., a “threshold level”) an “ON” determination is made. Id. at 2:¶2.
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`However, Yasuhiro notes that since there are a “multiplicity of non-touch switches
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`1 [] disposed next to each other…the output pulses of the non-touch switches 1
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`therearound will change.” Id. at 2:¶3 (noting that “when the switch surfaces of the
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`non-touch switches are installed in the vertical direction, the non-touch switch below
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`the non-touch switch intended by the person is undesirably detected first.
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`Furthermore, when the switch surfaces of the non-touch switches are installed in the
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`horizontal direction, there is a problem that the non-touch switch in front of the non-
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`touch switch intended by the person is undesirably detected first”). Therefore, in
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`order to “prevent erroneous input,” Yasuhiro establishes “priority rankings for
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`simultaneous input.” Id. at 2:¶4.
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`30. To resolve this simultaneous input keying ambiguity dilemma,
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`Yasuhiro’s priority ranking scheme assigns priority numbers to individual non-touch
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`switches “in a predetermined direction” to enable the computation and control circuit
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`to select (i.e., assign validity to) the non-touch switch with the higher priority
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`ranking (i.e., the user-intended switch). Id. at 2:¶¶2, 5, 9-10; 3:¶¶ 1-2. Yasuhiro
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`discloses four such “absolute”1 priority ranking schemes (see Figs 1(b)-1(c), 2(b)-
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`2(c)):
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`1 These ranking are “absolute” in that the highest ranked switch is deemed to be the
`selected switch when comparing signals from two or more activated switches.
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`(1) “top to bottom, [when] the non-touch switches are arrayed in the vertical
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`direction;” (2) “distal to proximal, [when] the non-touch switches are arrayed in the
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`horizontal direction;” (3) “top to bottom … and [then from] the leftmost column
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`toward the rightward columns” when the switches “are arranged in a matrix;” and
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`similarly (4) “distal to proximal” and then “from the upper row to the lower row” in
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`a matrix. See id. at claim 1; 2:¶¶4-6, 9-10; 3:¶¶1-2. As illustrated in the following
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`figure, Yasuhiro’s rankings are based on the assumed approach direction of a user’s
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`finger such that priority increases in the direction of approach:
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`Id. at Figs. 1(a), 2(a).
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`31. Yasuhiro is analogous art to the ’092 Patent at least because it is in the
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`same field of endeavor and seeks to solve similar problems as the ’092 Patent. As
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`described above, the ’092 Patent relates to a touch-user interface comprising an array
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`of capacitive keys for generating output signals in response to capacitive changes
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`from a user’s finger. ’092 Patent at Abstract; 1:7-10 (“The invention relates to touch
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`sensitive user interfaces having an array of sensing elements and methods for
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`determining which of a plurality of sensing elements in simultaneous detection is
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`intended by a user for selection.”). Yasuhiro, similar to the ’092 Patent, describes a
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`touch-sensitive interface containing an array of switches or keys for determining
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`user input. Yasuhiro at 1:¶1 (“[Claim 1] A non-touch switch device in which a
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`multiplicity of non-touch switches, which detect a change in the capacitance of a
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`planar capacitor consisting of a pair of electrode plates arranged in the same plane,
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`are adjacently provided” which includes a “computation and control circuit” for
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`determining “which non-touch switch has been turned ON when comparison results
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`have been simultaneously input”). Moreover, as further described above, the ’092
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`Patent is directed at resolving keying ambiguity and false inputs using position-
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`dependent priority ranking schemes. ’092 Patent at 3:15-34; 1:10-14 (“Thus the
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`invention relates to a method and apparatus for controlling touch sensitive user
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`interfaces, e.g. to assist in preventing accidental false inputs from keys adjacent to a
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`selected key in a capacitive keyboard”). Yasuhiro describes and works toward the
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`same issue. Yasuhiro at 2:¶4 (“The present invention is provided in view of the
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`foregoing matters, and provides a non-touch switch device intended to prevent
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`erroneous input by establishing priority rankings for simultaneous input”).
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`Therefore, a PHOSITA would understand that the two are analogous.
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`ii. Opinions regarding Claim 1
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`a) touch-sensitive user interface
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`32. Yasuhiro discloses a non-touch switch device having an array of planar
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`capacitor sensors (“non-touch switches”) which detect capacitance changes from the
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`electrical signals of a user’s fingertip. Yasuhiro at 2:¶1. As a user’s finger approaches
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`the switch surfaces of the non-touch switches, the finger acts as a third electrode,
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`forming capacitors between the outer electrode plate 2 and the fingertip, dividing the
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`charge between electrode plates 2 and 4. Id.; see also id. at Fig. 2(a):
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` As the user’s finger approaches and comes into contact with the surface of the
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`desired non-touch switch, other non-touch switches in the path of this approach may
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`additionally detect the user’s touch. Id. at Fig. 7(b):
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`See also id. at 2:¶¶3; 4 (describing position-based priority ranking to prevent
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`erroneous detection from adjacent switches).
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`33. As noted above, Yasuhiro cites to PCT/AU86/00043, an Australian
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`patent owned by Intel Electronics Ltd., for a broad discussion of the configuration
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`and operation of “non-touch switches.” Id. at 1:¶3 (citing to PCT/AU86/00043).
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`PCT/AU86/00043 explains that “non-touch switches” are “capacitive sensing
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`devices such as switches or keys,” as used in capacitive keyboards, which provide
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`“accurate detection of a person’s finger through glass or plastic on a capacitive
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`sensor.” PCT/AU86/00043 at []. Based on Yasuhiro and this PCT publication, a
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`PHOSITA would have understood that Yasuhiro’s “non-touch switches” refer to
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`capacitive keys which read capacitance changes proximity or physical contact of the
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`user’s finger on the surface (optionally glass or plastic) of the non-touch switches.
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`Because the proximity of a finger to the switch impacts the amount of capacitance
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`change, physical contact will generally regis