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`Exhibit D
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`Case 6:23-cv-00158-ADA Document 76-4 Filed 05/08/24 Page 2 of 24
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`UNITED STATES PATENT AND TRADEMARK OFFICE
`__________________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`__________________________________________________________________
`
`
`
`META PLATFORMS, INC.,
`
`Petitioner,
`
`v.
`
`JAWBONE INNOVATIONS, LLC,
`
`Patent Owner.
`
`
`Patent No. 10,779,080
`Filing Date: July 22, 2013
`Issue Date: September 15, 2020
`
`Inventor: Gregory C. Burnett
`Title: DUAL OMNIDIRECTIONAL MICROPHONE ARRAY (DOMA)
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`
`
`
`__________________________________________________________________
`
`DECLARATION OF AKBAR M. SAYEED, Ph.D.
`
`Case No. IPR2024-00350
`__________________________________________________________________
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`Jawbone Exhibit No. 2001, IPR2024-00350
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`TABLE OF CONTENTS
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`IPR2024-00350
`PATENT NO. 10,779,080
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`Page(s)
`
`i
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`INTRODUCTION ........................................................................................... 1
`A.
`Background and Qualifications ............................................................. 1
`COMPENSATION .......................................................................................... 6
`II.
`III. MATERIALS CONSIDERED ........................................................................ 6
`IV. LEGAL PRINCIPLES ..................................................................................... 7
`V.
`LEVEL OF SKILL IN THE ART ................................................................... 8
`VI. THE CLAIMED INVENTION OF THE ‘080 Patent ..................................... 8
`VII. THE ALLEGED PRIOR ART ......................................................................13
`A.
`Brandstein ............................................................................................ 13
`VIII. CLAIM CONSTRUCTION ..........................................................................13
`IX. PETITIONER’S COMBINATIONS DO NOT RENDER ANY
`CLAIM OBVIOUS ........................................................................................14
`A. GROUND 1: Brandstein in View of Ikeda Does Not Render
`Obvious Claims 1-20 ........................................................................... 14
`1.
`Petitioner’s Combination Does Not Disclose or Render
`Obvious “the second linear response to noise [is/being]
`substantially similar to the first linear response to noise”
`as Recited in Independent Claims 7 and 14 or “wherein
`the first virtual microphone ad second virtual
`microphone have substantially similar responses to
`noise” as recited in Independent Claim 1 .................................14
`CONCLUSION ..............................................................................................20
`
`
`I.
`
`X.
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`
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`IPR2024-00350
`PATENT NO. 10,779,080
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`I, Akbar M. Sayeed, declare as follows:
`
`1.
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`I have been asked by counsel for Patent Owner, Jawbone Innovations,
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`LLC (“Jawbone” or “Patent Owner”), to review U.S. Patent No. 10,779,080 (the
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`“’080 Patent”) entitled DUAL OMNIDIRECTIONAL MICROPHONE ARRAY
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`(DOMA) and to provide my technical review, analysis, insights, and opinions
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`regarding the ‘080 Patent in view of the prior art cited by Petitioner Meta Platforms,
`
`Inc. (“Meta” or “Petitioner”). I submit this declaration in support of Patent Owner’s
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`Preliminary Response in this IPR proceeding. I have personal knowledge of the
`
`matters stated herein and would be competent to testify to them if required.
`
`2.
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`I have been retained on behalf of Jawbone for the above-captioned inter
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`partes review proceeding. I understand that the ‘080 Patent is currently assigned to
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`Jawbone.
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`3.
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`I am over 18 years of age. I have personal knowledge of the facts stated
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`in this Declaration and could testify competently if asked to do so.
`
`I.
`
`INTRODUCTION
`A. Background and Qualifications
`I have reviewed and am familiar with the specification of the ‘080
`4.
`
`Patent. I understand the ‘080 Patent has been provided as Exhibit 1001. I will cite
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`to the specification using the following format: ‘080 Patent at col.:line.
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`5. My CV is being submitted simultaneously herewith (Ex. 2002).
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`1
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`6.
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`I received my B.S. degree in Electrical and Computer Engineering
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`(ECE) from the University of Wisconsin-Madison in 1991. I received my M.S. and
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`Ph.D. degrees in ECE from the University of Illinois at Urbana-Champaign in 1993
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`and 1996, respectively. In my undergraduate and graduate studies, I look a variety
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`of courses generally focusing on the areas of signal processing, communication
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`theory, information theory, electromagnetics and antennas, and statistical techniques
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`in signal processing and communications. My Ph.D. dissertation was entitled
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`“Statistical Time-Frequency Analysis” in which I proposed new framework for
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`statistical signal processing using time-frequency representations, mathematical
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`tools that extend the powerful theory of Fourier transforms and Fourier analysis to
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`time-varying signals and systems.
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`7.
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`I currently work as an Independent Researcher, Engineer and Technical
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`Consultant, and worked as professor of Electrical and Computer Engineering at the
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`University of Wisconsin-Madison from 1997-2021, where I directed the Wireless
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`Communications and Sensing Laboratory until my retirement on August 1, 2021 to
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`pursue a career as an independent researcher and consultant.
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`8. My current work as an independent researcher and consultant spans
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`STEM (science, technology, engineering & mathematics) fields through the lens of
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`information science and technology. My STEM skills and experience cover a broad
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`range of areas, including:
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`2
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`• Wireless technologies for sensing, processing and communication of
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`information (5G/6G/XG), internet of things, and emerging technologies
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`for untapped spectrum (e.g., millimeter-wave, THz).
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`• Sensing and acquisition of data
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`in new modalities
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`through
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`technological innovation.
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`• Machine learning and statistical techniques for extracting useful
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`information from data.
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`• Quantum information science and technology (computing, sensing and
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`communication) spanning foundational concepts, algorithms, and
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`platforms.
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`• Conception, design and development of new information technologies
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`through basic theory, computational modeling, and hybrid software-
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`hardware prototyping and experimentation.
`
`9.
`
`I have written/co-written 200+ papers in leading journals and
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`conferences. I am an inventor/co-inventor of 10 patents.
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`10. After receiving my Ph.D. in 1996, I spent a year at Rice University as
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`a postdoctoral research fellow where I expanded the scope of my research to the
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`growing field of wireless communications that underpins much of mobile cellular
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`technology. In particular, the propagation channels encountered in mobile cellular
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`communication are inherently time-varying in nature and that provided a natural
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`3
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`connection to my Ph.D. research. After spending a year at Rice University, I
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`accepted a position as an Assistant Professor in the ECE Department at the
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`University of Wisconsin-Madison in 1997. I was granted tenure and promoted to
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`Associate Professor in 2003, and was promoted to Professor in 2008.
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`11.
`
`I founded and directed the Wireless Communication and Sensing
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`Laboratory at UW-Madison and engaged in research, teaching and innovation in the
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`basic science, engineering, and
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`technology of sensing, processing, and
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`communication of information. In particular, I led a team in the conception, design,
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`development and successful demonstration of a state-of-the-art prototype for multi-
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`beam MIMO (multiple input multiple output) communication at 28 GHz based on
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`the concept of a lens array that I had pioneered.
`
`12.
`
`I co-founded and co-led the NSF-sponsored Research Coordination
`
`Network (RCN) on millimeter-wave wireless (2016-2019) for bringing together
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`researchers from academia, industry, and government agencies to address critical
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`technical challenges in the area.
`
`13. From 2017-2019 I served as a Program director in the Electrical,
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`Communications, and Cyber Systems (ECCS) Division of the Directorate of
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`Engineering at the National Science Foundation. At the NSF, I managed existing
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`programs and initiated new research programs involving sensing, processing, and
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`communication of information in all possible physical modalities, architectures, and
`
`4
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`technologies, including quantum information science and engineering. I actively
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`contributed to three NSF-wide working groups: Electromagnetic Spectrum
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`Management (ESM) working group, and the working groups of two of the 10 NSF
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`Big Ideas: i) Quantum Leap and ii) Harnessing the Data Revolution. In particular, I
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`co-led the team that developed the NSF solicitation for Quantum Leap Challenge
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`Institutes (Feb 2019) in response to the National Quantum Initiative (NQI) Act
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`signed in December 2018.
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`14.
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`I have a demonstrated history (25 yrs.) of leading an interdisciplinary
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`research and development group at the forefront of foundational and technological
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`innovations in wireless communication and sensing. Physics-based accurate and
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`computationally tractable system modeling has been a key underlying theme in my
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`work, spanning communication & sensor networks, multipath propagation over
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`highly dynamic environments, wideband MIMO systems, mm-wave and THz
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`wireless, and prototype development (hardware & software).
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`15. My technical background, experience and skills are directly relevant to
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`the subject matter in this case. The modeling, analysis and processing of information
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`bearing signals and waves, including transmission and reception through antennas
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`and antenna arrays, and propagation over channels, has been an underlying theme
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`throughout my career. In particular, I have extensive experience in the conception,
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`modeling, development and analysis of techniques and algorithms for processing
`
`5
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`and filtering of signals from an array of sensors or antennas, including beamforming,
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`interference and noise suppression, and adaptive filtering methods. While most of
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`my work has focused on electromagnetic signals, the underlying physics and
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`mathematics are very similar to acoustic signals.
`
`II. COMPENSATION
`16. My compensation for time worked on this proceeding is not dependent
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`on any issues related to the ‘080 Patent, the outcome of this proceeding, or the
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`substance of my opinions. My compensation for time worked on this proceeding is
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`at my customary rate of $200 per hour. I have no financial interest in, or affiliation
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`with, the Patent Owner or any of the real parties in interest.
`
`III. MATERIALS CONSIDERED
`In providing my technical review, analysis, insights, and opinions, I
`17.
`
`have considered the ‘080 Patent and its prosecution history.
`
`18.
`
`I have also considered the Petition filed by the Petitioner in this
`
`proceeding and the relevant exhibits relied on by Petitioner, including the expert
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`declaration submitted by Michael Johnson, Ph.D. (“Ex. 1003”).
`
`19.
`
`I have also considered my own experience and knowledge, as discussed
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`above and described more fully in my CV, in areas including signal processing,
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`electrical engineering, and other related technologies.
`
`6
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`IV. LEGAL PRINCIPLES
`I understand that a patent claim is unpatentable as “obvious” if the
`20.
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`subject matter of the claim as a whole would have been obvious to a person of
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`ordinary skill in the art (POSITA) as of the time of the invention at issue.
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`21.
`
`I understand that the use of “the person of ordinary skill” rubric is to
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`prevent one from improperly, in the present day, using hindsight to decide whether
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`a claim is obvious.
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`22.
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`I understand that the following factors must be evaluated to determine
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`whether the claimed subject matter is obvious: (1) the scope and content of the prior
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`art; (2) the difference or differences, if any, between the scope of the patent claim
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`and the scope of the prior art; and (3) the level of ordinary skill in the art at the time
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`of the invention.
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`23.
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`I understand that certain secondary considerations, such as commercial
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`success, skepticism of experts, surprise, and copying, may provide evidence of non-
`
`obviousness. I further understand that such considerations are often the most
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`probative and determinative of obviousness or non-obviousness.
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`24.
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`I understand that I must construe a claim in accordance with the
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`ordinary and customary meaning of the language of such claim as understood by one
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`of ordinary skill in the art and the prosecution history pertaining to the patent.
`
`7
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`V. LEVEL OF SKILL IN THE ART
`I understand that I should perform my analysis from the viewpoint of a
`25.
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`person of ordinary skill in the art. I understand that this hypothetical person of
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`ordinary skill in the art is considered to have the normal skills of a person in a certain
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`technical field. I understand that factors that may be considered in determining the
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`level of ordinary skill in the art include: (1) the education level of the inventor;
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`(2) the types of problems encountered in the art; (3) the prior art solutions to those
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`problems; (4) rapidity with which innovations are made; (5) the sophistication of the
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`technology; and (6) the education level of active workers in the field.
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`26.
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`In my opinion, a person of ordinary skill in the art would have a
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`bachelor’s degree
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`in computer engineering, computer science, electrical
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`engineering, mechanical engineering, or a similar field, and approximately three
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`years of industry or academic experience in a field related to acoustics, speech
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`recognition, speech detection, or signal processing. Work experience can substitute
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`for formal education and additional formal education can substitute for work
`
`experience.
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`VI. THE CLAIMED INVENTION OF THE ‘080 Patent
`I
`have
`reviewed
`the
`‘080
`Patent,
`27.
`
`entitled DUAL
`
`OMNIDIRECTIONAL MICROPHONE ARRAY (DOMA) (Ex. 1001). It issued on
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`September 15, 2020, and was filed on July 22, 2013.
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`8
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`28. The ‘080 Patent discloses and claims methods for noise suppression in
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`dual omnidirectional microphone arrays. Unlike “conventional arrays and
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`algorithms which seek to reduce noise by nulling out noise sources,” the ‘080 Patent
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`uses omnidirectional microphone arrays “to form two distinct virtual directional
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`microphones which are configured to have very similar noise responses and very
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`dissimilar speech responses.” ‘080 Patent, Abstract. While “conventional multi-
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`microphone systems attempt to increase the [signal-to-noise ratio] of the user’s
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`speech by ‘steering’ the nulls of the system to the strongest noise sources, [t]his
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`approach is limited in the number of noise sources removed by the number of
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`available nulls.” Id., 1:44-59. Counterintuitively, in the ‘080 Patent, “[t]he only null
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`formed by the DOMA is one used to remove the speech of the user from [the second
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`virtual microphone]”. Id. at 3:56-57 (emphasis added). However, the similarity of
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`the ‘080 Patent’s virtual microphones’ noise responses allows them to be cancelled
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`while leaving the speech response intact, “resulting in excellent noise suppression
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`performance and minimal speech removal and distortion.” Id. at 6:59-62; 9:22-38.
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`29. The ‘080 Patent discloses a noise suppression apparatus that creates two
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`virtual microphones V1 and V2 based on the signals generated by two
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`omnidirectional microphones.
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`𝑉𝑉1(𝑧𝑧)=𝑂𝑂1(𝑧𝑧)𝑧𝑧−𝛾𝛾–𝛽𝛽𝑂𝑂2(𝑧𝑧)
`𝑉𝑉2(𝑧𝑧)= 𝑂𝑂2(𝑧𝑧)–𝑧𝑧−𝛾𝛾𝛽𝛽𝑂𝑂1(𝑧𝑧)
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`9
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`𝛽𝛽=𝑑𝑑1𝑑𝑑2
`𝛾𝛾= 𝑑𝑑2− 𝑑𝑑1𝑐𝑐
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` .𝑓𝑓𝑠𝑠 (samples)
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`Id. at 9:53, 11:1. In these equations, β and γ are defined as follows:
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`Id. at 9:55-60. “The distances d1 and d2 are the distances from O1 and O2 to the
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`speech source,” respectively, and “γ is their difference divided by c, the speed of
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`sound, and multiplied by the sampling frequency fs.” Id., 9:64-67.
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`30.
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`In the analog frequency domain, the equations for V1 and V2 are written
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`as follows:
`
`
`
`
`
`.
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`where 𝑧𝑧=𝑒𝑒𝑗𝑗2𝜋𝜋𝜋𝜋and 𝜏𝜏= 𝑑𝑑2− 𝑑𝑑1𝑐𝑐
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`31. The configuration of the ‘080 Patent circuit according to these
`
`equations can be shown as follows:
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`
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`‘080 Patent Circuit
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`10
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`In this diagram, the signals from omnidirectional microphones O1 and O2 first pass
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`through a gain with a value of β or 1 (i.e., no gain) and then pass through a delay τ
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`or 0 (i.e., no delay). In this circuit, the first and third lines are summed to form virtual
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`microphone V1, and the second and fourth lines are summed to form the virtual
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`microphone V2.
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`32. The ‘080 Patent discloses that the apparatus “works very well because
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`the noise (far-field) responses of V1 and V2 are very similar while the speech (near-
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`field) responses are very different.” Id. at 16:4-10.
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`33. The ‘080 Patent discloses polar plots depicting similar noise responses
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`which may be cancelled while leaving dissimilar speech responses intact. For
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`instance, Figures 10 and 12 show the linear responses of virtual microphones V2 and
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`V1, respectively, to noise from a source at 1 meter:
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`‘080 Patent, 10:22-25, 11:25-29, Figs. 10, 12.
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`
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`11
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`34. Figures 9 and 11 show the linear responses of virtual microphones V2
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`and V1, respectively, to speech at a distance of 0.1 meter at an angle of zero degrees:
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`
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`‘080 Patent, 10:18-20, 11:20-22, Figs 9,11.
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`35. Figure 9 shows a null in the linear response of virtual microphone V2
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`to speech at zero degrees, “where the speech is typically expected to be located.” Id.,
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`10:20-22. As shown in Figure 10, “[t]he linear response of V2 to noise is devoid of
`
`or includes no null, meaning all noise sources are detected.” Id., 10:25-27. This
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`configuration ensures that virtual microphone V2 will detect all of the noise in front
`
`of the user so that it can be removed, which is an advantage over “conventional
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`systems that can have difficulty removing noise in the direction of the mouth of the
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`user.” Id., 10:36-38. In addition, “the superior noise suppression made possible
`
`using this system more than compensates for the initially poorer SNR,” or signal to
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`noise ratio, of the virtual microphones. Id., 11:59-61.
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`12
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`VII. THE ALLEGED PRIOR ART
`A. Brandstein
`I have reviewed Microphone Arrays: Signal Processing Techniques and
`36.
`
`Applications, (Ex. 1005, “Brandstein”) (Ex. 1005). Brandstein is a collection of
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`papers discussing topics in microphone arrays. Ex. 1005 at 5. Brandstein purports
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`to have been published in 2001. Id. at 4.
`
`37. Petitioner primarily
`
`relies on
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`the paper “Robust Adaptive
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`Beamforming” as reproduced in Brandstein as Chapter 5. As discussed in detail infra
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`Section IX.A.1, the Griffiths-Jim beamformer (GJBF) described in that paper
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`operates by attenuating noise while passing speech through a top path and by
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`attenuating speech while passing noise through a bottom path. Brandstein’s GJBF
`
`achieves noise suppression by using a multiple input canceller (“MC”) to subtract
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`certain components of the noise signal from a top path that already has an attenuated
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`noise response. This is fundamentally different than the invention of the ‘080 Patent,
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`which operates using a first virtual mic pass to capture both speech and noise in
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`combination with a second virtual microphone that has a substantially similar
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`response to noise, such that the noise may be cancelled.
`
`VIII. CLAIM CONSTRUCTION
`I understand that Petitioner claims to have applied the plain and
`38.
`
`ordinary meaning of the claims terms as they would have been understood by a
`
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`POSITA, consistent with the ‘080 Patent’s disclosure and prosecution history. For
`
`my analysis, I have considered each claim term and applied its plain and ordinary
`
`meaning consistent with the ‘080 Patent’s disclosure and prosecution history.
`
`IX. PETITIONER’S COMBINATIONS DO NOT RENDER ANY
`CLAIM OBVIOUS
`A. GROUND 1: Brandstein in View of Ikeda Does Not Render
`Obvious Claims 1-20
`In my opinion, combination of Brandstein does not render claims 1-20
`
`39.
`
`of the ‘080 Patent obvious.
`
`1.
`
`Petitioner’s Combination Does Not Disclose or
`Render Obvious “the second linear response to noise
`[is/being] substantially similar to the first linear
`response to noise” as Recited in Independent Claims 7
`and 14 or “wherein the first virtual microphone and
`second virtual microphone have substantially similar
`responses to noise” as recited in Independent Claim 1
`40. The Petition argues that Brandstein discloses or renders obvious this
`
`limitation, and does not otherwise argue that it is inherent. I disagree that Brandstein
`
`discloses “the second linear response to noise [is/being] substantially similar to the
`
`first linear response to noise” as Recited in Independent Claims 7 and 14 or “wherein
`
`the first virtual microphone and second virtual microphone have substantially similar
`
`responses to noise” as recited in Independent Claim 1.
`
`41.
`
` Unlike the invention of the ‘080 Patent which contemplates a first
`
`virtual microphone that captures both speech and noise, the top branch of the GJBF
`
`14
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`Jawbone Exhibit No. 2001, IPR2024-00350
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`discussed in the cited portions of Brandstein captures speech while suppressing as
`
`much noise as possible, while the bottom branch captures as much noise as possible
`
`while suppressing speech. Brandstein states that for the top path “[t]he [fixed
`
`beamformer] is designed to form a beam in the look direction so that the target signal
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`is passed through and all other signals are attenuated” while for the bottom path
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`“the [blocking matrix] forms a null in the look direction so that the target signal is
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`suppressed and all other signals are passed through.” Ex. 1005 at 88 (emphasis
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`added). In other words, the fixed beamformer (top path) passes speech through (the
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`target signal) and attenuates noise, while the blocking matrix (bottom path)
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`suppresses speech and passes noise through. Brandstein’s design is therefore
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`consistent with the type of “conventional arrays and algorithms, which seek to
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`reduce noise by nulling out noise sources” that the ‘080 Patent itself distinguishes.
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`Ex. 1001 at 3:51-52. Brandstein’s implementation is very different than the
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`invention of the ‘080 Patent, in which the first virtual microphone passes through
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`both speech and noise, such that another virtual response with a “substantially
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`similar” noise response may be used to cancel noise while preserving speech. A
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`POSITA would understand that a virtual microphone that attenuates noise does not
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`have a “substantially similar” noise response to one that passes noise through.
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`42.
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`I understand that Petitioner and Dr. Johnson argue that “[b]oth virtual
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`microphones also have essentially the same … responses to noise, so that the noise
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`responses cancel out in the GJBF’s final subtraction step.” Pet. at 44 (citing to Dr.
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`Johnson’s declaration at ¶119). I disagree. The ultimate result of cancelling noise in
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`“the final output of an example Griffiths-Jim beamformer” does not disclose (or even
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`suggest) that the noise responses of a first and second virtual microphone must be
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`substantially similar. A POSITA would not leap to any such conclusion, particularly
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`given that the cited portions of Brandstein teach a contrary means of noise
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`suppression. The Petition’s obviousness analysis is based on a hindsight reverse
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`engineering of the noise suppression device of the ‘080 Patent. Brandstein states that
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`it uses a “multiple input canceller” (“MC”) which “generate[s] replicas of
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`components correlated with the interferences” that are “subtracted from a delayed
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`output signal [] of the fixed beamformer” based on which “the target signal is
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`enhanced and undesirable signals such as ambient noise and interferences are
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`suppressed.” Ex. 1005 at 88-89. In other words, instead of using virtual
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`microphones with substantially similar noise responses, Brandstein’s GJBF attempts
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`to isolate speech in the top path as much as possible, then uses the MC to subtract
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`only those noise components of the bottom path that are “correlated with the
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`interferences.”
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`43.
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`I understand that Petitioner and Dr. Johnson argue that “as highlighted
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`in red in Fig. 5.2, “in the direction of the interference, a deep null is formed” …
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`[reflecting] that subtracting the bottom branch from the top branch cancels the
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`interference, confirming that the virtual microphones’ responses to the interference
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`are essentially the same”
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`
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`Pet. at 44. But Figure 5.2 does not support Petitioner’s assertions. Figure 5.2 shows
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`the overall directivity of an exemplary GJBF at three different frequencies (i.e. the
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`combination of both the top and bottom path, with the bottom path also including
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`processing by the “multiple input canceler”), not the directivity of either virtual
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`microphone. That directivity merely has an area of significantly reduced gain in the
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`direction of an interference (i.e. a noise source). This reflects the overall result of the
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`system in attenuating noise; a POSITA would not understand this figure to disclose
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`anything about the comparative responses to noise of the top or bottom path within
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`that system (which are not even depicted in the figure). In any case, as discussed
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`above, Brandstein contemplates this result based on subtracting elements of noise
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`(generated by a multiple input canceller by taking “replicas of components
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`correlated with the interferences”) from an FBF signal that already has as little noise
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`as possible, not based on any “substantially similar” noise response.
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`44. Brandstein’s Figure 5.3, which actually depicts the directivity of the
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`cited GJBF’s top and bottom path unlike Figure 5.2, further shows that their
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`responses to noise are not substantially similar. Ex. 1005 at 80. I have highlighted
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`the noise response of each plot in green. A POSITA would plainly understand that
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`these responses are not substantially similar.
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`
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`45.
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`I note that Petitioner and Dr. Johnson cite to an annotated version of
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`Brandstein’s Fig. 5.3 in support of certain arguments regarding the dissimilarity of
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`the speech responses. Pet. at 44-45. Conspicuously, Petitioner does not refer to this
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`figure in its noise response arguments. In fact, Petitioner’s annotated figure further
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`demonstrates that the Brandstein does not disclose virtual microphones with
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`substantially similar responses to noise. In any case, as I explain with respect to the
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`annotated Fig. 5.3 above, the noise responses of the FBF and the BM in Fig 5.3 are
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`plainly very different.
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`46.
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`I therefore conclude that Brandstein does not disclose or render obvious
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`“the second linear response to noise [is/being] substantially similar to the first linear
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`response to noise” as Recited in Independent Claims 7 and 14 or “wherein the first
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`virtual microphone and second virtual microphone have substantially similar
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`responses to noise,” as recited in Claim 1. In fact, the discussion in Chapter 5 of
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`Branstein provides only a high-level review of the Griffiths-Jim beamformer (GJBF)
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`in Sec. 5.2, in the context of at addressing the “robustness problem” in the GJBF (the
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`primary focus of Chapter 5) arising from “target-signal leakage”. As Chapter 5 does
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`not disclose equations for the GJBF discussed in section 5.2, Fig. 5.3 would provide
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`a POSITA’s only understanding of the actual noise responses of its FBF and BM
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`outside of the above-cited disclosure that noise is attenuated in its FBF and not in its
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`BM. This would further support a POSITA’s understanding that the top and bottom
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`branches of Brandstein’s GJBF do not have substantially similar responses to noise.
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`X. CONCLUSION
`In signing this declaration, I recognize that the declaration will be filed
`47.
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`as evidence in a contested case before the Patent Trial and Appeal Board of the
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`United States Patent and Trademark Office. I also recognize that I may be subject
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`to cross-examination in the case and that cross-examination will take place within
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`the United States. If cross-examination is required of me, I will appear for cross-
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`examination within the United States during the time allotted for cross-examination.
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`I hereby declare that all statements made herein of my own knowledge are
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`true and that all statements made on information and belief are believed to be true;
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`and further that these statements were made with the knowledge that willful false
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`statements and the like so made are punishable by fine or imprisonment, or both,
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`under Section 1001 of Title 18 of the United States Code.
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`
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`Executed this 28th day of March 2024
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`Respectfully submitted,
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`
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`Akbar M Sayeed
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`________________________
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