throbber
Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 1 of 14 PageID #: 4364
`
`IN THE UNITED STATES DISTRICT COURT
`FOR THE EASTERN DISTRICT OF TEXAS
`TYLER DIVISION
`
`C.A. No. 6:12-cv-799-LED
`
`JURY TRIAL DEMANDED
`
`§§
`

`
`§§
`

`
`§§
`

`
`§§
`
`§§
`

`
`§§
`
`§§
`

`
`INVENSYS SYSTEMS, INC.,
`
`v.
`
`Plaintiff,
`
`EMERSON ELECTRIC CO. and
`MICRO MOTION INC., USA,
`
`and
`
`Defendants.
`
`MICRO MOTION INC., USA,
`
`v.
`
`Counterclaim-Plaintiff,
`
`INVENSYS SYSTEMS, INC.,
`
`Counterclaim-Defendant.
`
`PLAINTIFF’S REPLY CLAIM CONSTRUCTION BRIEF
`
`EAST\74868091.10
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 2 of 14 PageID #: 4365
`
`TABLE OF CONTENTS
`
`Table of Authorities ........................................................................................................................ ii
`
`I.
`
`II.
`
`“Configured to” and “operable to” and variants thereof......................................................1
`
`Control Terms ......................................................................................................................2
`
`A.
`
`Transition terms ...................................................................................................... 2
`
`1.
`2.
`
`“Determine the flow rate during a transition” and variants thereof............ 2
`“Maintains oscillation during a transition” and variants thereof,
`and “during an onset”.................................................................................. 3
`“In response to detecting a system disturbance” and variants
`thereof ......................................................................................................... 4
`Drive Control Terms............................................................................................... 5
`
`3.
`
`1.
`
`“In response to the extent to which the flowtube is filled by the
`fluid flow”................................................................................................... 5
`“Second drive signal is different from the first drive signal” ..................... 5
`2.
`Mode terms ............................................................................................................. 6
`
`B.
`
`C.
`
`“Digital synthesis mode” ............................................................................ 7
`1.
`“Positive feedback mode”........................................................................... 8
`2.
`Digital System Terms ..........................................................................................................8
`
`III.
`
`A.
`
`B.
`
`“Input module,” “output module,” and “processing devices” ................................ 8
`
`“A digital control system” ...................................................................................... 9
`
`IV.
`
`Data Collection Terms .........................................................................................................9
`
`A.
`
`B.
`
`“Data for a complete cycle of the periodic sensor” ................................................ 9
`
`“Zero offset” ......................................................................................................... 10
`
`Conclusion .....................................................................................................................................10
`
`EAST\74868091.10
`
`i
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 3 of 14 PageID #: 4366
`
`TABLE OF AUTHORITIES
`
`Cases
`
`Elekta Instrument S.A. v. O.U.R. Scientific International, Inc.,
`214 F.3d 1302 (Fed. Cir. 2000)........................................................................................... 3
`Grain Processing Corp. v. Am. Maize Prods. Co.,
`840 F.2d 902 (Fed. Cir. 1988)............................................................................................. 6
`Halliburton Oil Well Cementing Co. v. Walker,
`329 U.S. 1 (1946)................................................................................................................ 1
`Hearing Components, Inc. v. Shure Inc.,
`600 F.3d 1357 (Fed. Cir. 2010)........................................................................................... 3
`Intel Corp. v. ITC,
`946 F.2d 821 (Fed. Cir. 1991)............................................................................................. 3
`Phillips v. AWH Corp.,
`415 F.3d 1303 (Fed. Cir. 2005) (en banc)........................................................................... 5
`SIPCO, LLC v. Amazon.com, Inc.,
`No. 2:08-CV-359-JRG, 2012 WL 5195942 (E.D. Tex. Oct. 19, 2012).......................... 1, 2
`SRI Int’l v. Matsushita Elec. Corp. of Am.,
`775 F.2d 1107 (Fed. Cir. 1985)........................................................................................... 1
`
`EAST\74868091.10
`
`ii
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 4 of 14 PageID #: 4367
`
`Defendants’ proposed claim constructions are replete with logical fallacies, strained
`
`efforts to read new limitations into the claims, and are inconsistent with both Federal Circuit
`precedent and numerous district court decisions (including decisions from this Court).1
`I.
`“Configured to” and “operable to” and variants thereof
`
`Defendants ignore both the numerous district court opinions holding that “configured to”
`
`and “operable to” are not means-plus-function limitations and Invensys’s argument that their
`
`proposed construction improperly attempts to make infringement turn on the use to which the
`
`accused product is put. See Pl.’s Opening Claim Constr. Br. at 8-9, ECF No. 122. Tellingly,
`
`instead of addressing Invensys’s authority, Defendants raise a variety of arguments that are
`
`inconsistent with established precedent or are based on overruled or inapplicable case law.
`
`First, Defendants contend that the terms “configured to” and “operable to” must be
`
`means-plus-function limitations because giving these terms their full scope could cover
`
`embodiments that are not discussed in the specification or that may not have been contemplated
`
`by the inventors. Contrary to Defendants’ position, however, it is well settled that a patent’s
`
`specification does not need to describe every possible embodiment of the invention. See SRI Int’l
`
`v. Matsushita Elec. Corp. of Am., 775 F.2d 1107, 1121-22 (Fed. Cir. 1985).
`
`Second, as Defendants’ candidly admit in their letter brief on indefiniteness, ECF No.
`
`121-1, at 5, and as explained in Invensys’s response, ECF No. 131-1, at 4-5, the Federal Circuit
`
`has rejected Defendants’ interpretation of Halliburton Oil Well Cementing Co. v. Walker, 329
`
`U.S. 1 (1946). Halliburton Oil simply does not support Defendants’ position.
`
`Finally, Defendants reliance on SIPCO, LLC v. Amazon.com, Inc., No. 2:08-CV-359-
`
`JRG, 2012 WL 5195942, at *56 (E.D. Tex. Oct. 19, 2012), is perplexing since the SIPCO court
`
`(like Invensys) “construe[d] ‘configured to’ as having its plain and ordinary meaning.” And
`
`1 The parties appear to have reached agreement on the terms “PI control algorithm” and “collect
`data corresponding to a subsequent cycle of the sensor signal simultaneously with processing
`the data for the current cycle.” Invensys also agrees with Defendants’ definition of “during a
`transition,” but notes that in ordinary parlance the word “throughout” does not categorically
`exclude any pauses or interruptions.
`
`EAST\74868091.10
`
`1
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 5 of 14 PageID #: 4368
`
`unlike the patentee in SIPCO, Invensys agrees that the plain and ordinary meaning of the term
`
`“configured to” entails “being actually configured.” Id. Defendants also ignore the fact that
`
`SIPCO did not address the term “operable to.” Nevertheless, although the terms “configured to”
`
`and “operable to” are not necessarily interchangeable, Invensys does not dispute that in order to
`
`be “operable to” the accused product must be capable of performing the claimed element. This is
`
`simply part of the ordinary meaning of this term.
`
`II.
`
`Control Terms
`
`A.
`
`Transition terms
`
`“Determine the flow rate during a transition” and variants thereof
`1.
`Essentially, Defendants argue that because Invensys’s patent claims a digital drive
`
`Coriolis flowmeter that determines the flow rate more accurately than prior art analog drive
`
`flowmeters, the claims are limited to a perfect, 100% accurate, completely error free flowmeter.
`
`Defendants’ proposed construction is facially unreasonable.
`
`Defendants’ interpretation of the specification is similarly insupportable. Defendants
`
`compare the error rate of analog drive flowmeters at high flowrates with the error rate of the
`
`patented digital drive flowmeters at low flow rates. See Defs.’ Resp. Claim Constr. Br. at 3, ECF
`
`No. 137. There is no evidence that a skilled artisan (or a layman of ordinary common sense)
`
`would interpret the “determining the flowrate” element by comparing the patented flowmeters to
`
`prior art flowmeters under different operating conditions. In fact, under identical conditions the
`
`patented flowmeters always have lower error rates than analog flowmeters. See ʼ646 Pat. Fig. 44
`
`& 52:6-11. Again, Defendants’ argument is completely untenable.
`
`As discussed in detail in Invensys’s Opening Claim Construction Brief, ECF No. 122, at
`
`11-12, the specification shows a comparison of the error rate between the patented digital drive
`
`Coriolis flowmeter and prior art analog drive flowmeters, but none of the intrinsic evidence
`
`indicates that the patented flowmeter provides perfectly accurate measurements with no error
`
`EAST\74868091.10
`
`2
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 6 of 14 PageID #: 4369
`
`rate at all.2 This term is not indefinite merely because it lacks precise mathematical boundaries.
`See Hearing Components, Inc. v. Shure Inc., 600 F.3d 1357, 1367 (Fed. Cir. 2010).
`
`In addition, Defendants argue that without construing this term to require perfection, the
`
`claims of the ’646 patent do not distinguish over the prior art. See Defs.’ Resp. Claim Constr. Br.
`
`at 2-3, ECF No. 137. But the specification explains that analog drive flowmeters failed during
`
`transitions from empty-to-full. See ’646 Pat. 56:32-33 (stating that when transitioning from
`
`empty-to-full “the analog control system stalls, and is unable to provide measurement data”); see
`
`also id. Fig 48A & 57:13-45. Likewise, Figures 40A to 40H show the “stall point of Foxboro’s
`
`analogue transmitter” (the vertical bar 4000), demonstrating that “traditional analog meters tend
`
`to stall in the presence of low levels of aeration.” Id. at 48:45-46. Also noticeably absent from
`
`Dr. Direen’s experiment or declaration is any statement
`
`that
`
`the flowmeter
`
`returned
`
`measurements during the transition, and the behavior of the sensor signal at those points suggests
`
`that it did not. See Defs.’ Resp. Claim Constr. Br. Ex F. at 0:30-0:37, 0:53-1:04, 1:18-1:26, ECF
`
`No. 137.
`
`2.
`
`“Maintains oscillation during a transition” and variants thereof, and
`“during an onset”
`a. “Maintains oscillation:” Precedent forecloses Defendants’ argument that “maintains
`
`oscillation” cannot be given its plain and ordinary meaning because analog drive flowmeters
`
`were also able to maintain oscillation during a transition (at least under some circumstances). As
`
`explained in detail in Invensys’s response to Defendants’ letter brief on indefiniteness, ECF No.
`
`131-1, at 3, there is simply no requirement that every (or even any) element of a claimed
`
`invention be distinct from the prior art. See Intel Corp. v. ITC, 946 F.2d 821, 842 (Fed. Cir.
`
`1991). (For this reason, most of Defendants’ briefing on this term is simply irrelevant.)
`
`2 Defendants’ reliance on Elekta Instrument S.A. v. O.U.R. Scientific International, Inc., 214
`F.3d 1302 (Fed. Cir. 2000), is misplaced. In Elekta, the court concluded that the unambiguous
`language of the claim coupled with clear statements in the prosecution history required
`adopting a construction that excluded the sole embodiment in the specification. See id. at 1308.
`Nothing in the intrinsic record supports Defendants’ construction.
`
`EAST\74868091.10
`
`3
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 7 of 14 PageID #: 4370
`
`Tellingly, Defendants also ignore many of the arguments in Invensys’s Opening Claim
`
`Construction Brief. For example, while the patents indisputably disclose embodiments that use
`
`setpoints, the specification also expressly states that setpoints are not required. See ʼ761 Pat.
`
`2:48-51. Thus, setpoints are not required by the patents’ claims.
`
`b. “During an onset:” Defendants also fail to refute Invensys’s argument that their
`
`construction of “during an onset” would encompass any period of time before the flowmeter is
`
`put into operation (e.g., during manufacture or shipment). While this hypothetical is “absurd,”
`
`that is precisely the problem with Defendants’ construction: It covers an absurd situation that
`
`even Defendants’ tacitly acknowledge is not covered by the claims.
`
`“In response to detecting a system disturbance” and variants thereof
`3.
`Once again, Defendants’ argument is premised on a forced reading of the specification.
`
`All the disputed claims require changing to a new mode when a system disturbance occurs. See,
`
`e.g., ʼ854 Pat. 34:1-4. In turn, the ʼ854 patent’s specification states that the system will switch to
`
`a different mode when it becomes unstable. See id. at 29:15-28. This occurs when there is “some
`
`external disturbance to the system,” “some unanticipated object/material that flows through the
`
`flowtube,” or “conditions such as two-phase and/or three-phase flow” arise. Id. at 29:19-22.
`
`Even though the claims and the specification do not use absolutely identical language (i.e.,
`
`“system disturbance” versus “unstable”), a skilled artisan (and a layman of ordinary common
`
`sense) would understand that the examples in the specification are intended to illustrate different
`
`types of undesirable changes that will trigger the change to a new operating mode required in the
`
`claims. Defendants also fail to address the other problems with their construction, such as
`
`inserting the word “ascertaining,” and their efforts to improperly limit the claims by the use to
`
`which the accused product is put.
`
`EAST\74868091.10
`
`4
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 8 of 14 PageID #: 4371
`
`B.
`
`Drive Control Terms
`
`1.
`
`“In response to the extent to which the flowtube is filled by the fluid
`flow”
`Contrary to Defendants’ assertion, Invensys has never stated that this term has no
`
`meaning. See Defs.’ Resp. Claim Constr. Br. at 10, ECF No. 137. That a term is understandable
`
`to layman (and thus does not require construction) does not make it meaningless. See Phillips v.
`
`AWH Corp., 415 F.3d 1303, 1314 (Fed. Cir. 2005) (en banc).
`
`In addition to mischaracterizing Invensys’s brief, Defendants’ construction is a blatant
`
`attempt to read extraneous limitations into the claims. For example, Defendants seem to argue
`
`that the claim must be construed to specifically describe how the flowmeter responds to the
`
`amount of fluid in the flowtube. See Defs.’ Resp. Claim Constr. Br. at 10-11, ECF No. 137. The
`
`claims simply do not require a specific threshold for responding to the amount of fluid in the
`
`flowtube, nor do they mandate a particular response.
`
`Finally, Defendants’ rely on a contorted reading of the claim and specification. Claim 6
`
`requires “adjusting the drive gain to maintain oscillation in response to the extent to which the
`
`flowtube is filled by fluid flow.” ʼ906 Pat. 54:34-36. The sequence of events covered by this
`
`claim is straightforward: When the amount of fluid in the flowtube could potentially interfere
`
`with the flowtube’s oscillation, the drive gain is adjusted to ensure that the flowtube will
`
`continue oscillating. Similarly, the specification explains how aeration (i.e., the presence of air in
`
`the flowtube, which necessarily relates to the extent of fluid in the flowtube) can cause stalls and
`
`discusses how adjusting the drive gain can prevent stalls. See id. at 46:20-23, 46:48-58.
`
`“Second drive signal is different from the first drive signal”
`2.
`Although Defendants’ devote substantial space in their brief to this term, their argument
`
`is easily refuted. The claims only require a “second drive signal [that] is different from the first
`
`drive signal.” ʼ062 Pat. 59:23-24, 60:26-28. Defendants seek to insert an additional limitation—
`
`“a different mode”—that does not appear in the claims and is not mandated by the specification.
`
`In fact, the lengthy quotations on which Defendants rely actually defeat their argument. For
`
`EAST\74868091.10
`
`5
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 9 of 14 PageID #: 4372
`
`example, the very first line of Defendants’ first block quote states that: “In general, the control
`
`and measurement system may initiate motion of the conduit by using a first mode of signal
`
`generation to generate the drive signal, and may sustain motion of the conduit using a second
`
`mode of signal generation to generate the drive signal.” Id. at 4:38-42 (emphasis added). The
`
`emphasized language demonstrates that the subsequent discussion merely describes a particular
`
`embodiment. Similarly, Defendants’ second block quote (which does not use the word “mode”)
`
`specifically refers to “one implementation.” Id. at 21:7-8. This embodiment also uses different
`
`drive gains to initiate and then sustain the flowtube’s motion, which constitutes the different
`
`drive signals required by the claims without requiring different “modes.” In addition, claim 16 of
`
`the patent requires a first and second “mode” of signal generation, while claims 40 and 45 do
`
`not. See Grain Processing Corp. v. Am. Maize Prods. Co., 840 F.2d 902, 911 (Fed. Cir. 1988).
`
`Defendants impermissible attempts to read extraneous limitations into the claims and should be
`
`rejected.
`
`C.
`
`Mode terms
`
`As an initial matter, it may be helpful to discuss the differences between “digital
`
`synthesis mode” and “positive feedback mode” as those terms are used in the ʼ854 patent. The
`
`sensor signals from the flowtubes typically include both a component at the resonant frequency
`
`as well as noise. See, e.g., ʼ854 Pat. 2:19-22, 8:65-9:1, 10:25-34, 14:30-39, 21:1-9, 28:62-29:5. In
`
`positive feedback mode, the sensor signal, including at least some of the unwanted noise, is
`
`multiplied by a gain factor. See, e.g., id. at Fig. 5 & 8:56-9:1, 12:31-44, 13:24-26. In digital
`
`synthesis mode, the controller essentially starts from scratch and creates a drive signal waveform
`
`(e.g., a pure sine wave), which has the desired frequency and amplitude. See id. at Fig. 7 &
`
`15:23-43. Because the drive signal is created essentially from scratch in digital synthesis mode, it
`
`will not contain the measured noise. This allows digital synthesis mode to provide a more
`
`precisely tailored drive signal than positive feedback mode. See id. at 8:56-9:1. Thus, the
`
`difference between “digital synthesis mode” and “positive feedback mode” is how the drive
`
`EAST\74868091.10
`
`6
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 10 of 14 PageID #: 4373
`
`signal is created, not what is actually output. See id. at 3:3-12; see also id. at Fig. 5 (positive
`
`feedback mode); id. at Fig. 7 (digital synthesis mode).
`
`“Digital synthesis mode”
`1.
`Invensys’s construction of “digital synthesis mode” reflects the disclosures in the
`
`specification. Digital
`
`synthesis mode simply creates a drive signal with the desired
`
`characteristics. See id. Fig. 7 & 8:56-9:1, 15:23-43.
`
`Defendants propose an alternative construction of “digital synthesis mode” as “a mode in
`
`which the digital transmitter digitally creates a new waveform as the drive signal based on an
`
`analysis of the sensor signal rather than feeding back processed components of the sensor signal
`
`as the drive signal.” Defs.’ Resp. Claim Constr. Br. at 17, ECF No. 137. Defendants’ new
`
`proposed construction is still deficient, however.
`
`First, the phrase “based on an analysis of the sensor signal” in Defendants’ construction
`
`is redundant. Claims 7 and 21 of the ’854 patent already require the drive signal created during
`
`digital synthesis mode to be based on “the analysis of the sensor signal.” ʼ854 Pat. 34:24-25,
`
`36:16-17. Repeating this element would be unnecessary at best and confusing at worst.
`
`Second, the negative limitation “rather than feeding back processed components of the
`
`sensor signal” is also unnecessary and confusing. Giving the terms “digital synthesis mode” and
`
`“positive feedback mode” different definitions (which Invensys agrees is appropriate) will
`
`sufficiently distinguish these terms without the risk that additional verbiage will confuse the jury.
`
`Finally, although Defendants have clarified what they mean by a “new” waveform, their
`
`argument still produces more confusion than clarity and lacks support in the specification.
`
`Defendants argue that “the waveform must be a new waveform with respect to the sensor signal
`
`under analysis.” Defs.’ Resp. Claim Constr. Br. at 17, ECF No. 137. But this does not explain the
`
`extent to which the synthesized drive signal must differ from the sensor signal and only invites a
`
`semantic debate about whether any given waveform is “new” or whether
`
`it
`
`includes
`
`“components” of the sensor signal. In fact, even under Defendants’ proposed construction of
`
`“digital synthesis mode” the new drive signal must be based on an “analysis” of the sensor
`
`EAST\74868091.10
`
`7
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 11 of 14 PageID #: 4374
`
`signal. And the passages from the ʼ854 patent’s specification Defendants cite merely state that
`
`the drive signal is created digitally, without precluding the synthesized drive signal from
`
`resembling the sensor signal in any way. See ʼ854 Pat. 8:59-61, 15:29-32, 18:35-36. Figure 10B
`
`does include a step labelled “synthesize a new wave,” but the accompanying discussion does not
`
`suggest that the new waveform and the sensor signal must be entirely distinct. See id. at 18:35-
`
`36.
`
`“Positive feedback mode”
`2.
`Like its construction of “digital synthesis mode,” Invensys’s construction of “positive
`
`feedback mode” is in accord with the disclosures in the specification. In positive feedback mode,
`
`the sensor signal is simply processed (e.g., calculations or operations are performed on it) to
`
`generate the drive signal. See, e.g., id. Fig. 5 & 8:56-9:1, 12:31-44, 13:24-26.
`
`Defendants propose an alternative construction of “positive feedback mode” as “a mode
`
`in which the drive signal includes processed components of a sensor signal detected by the
`
`sensor and fed back to the driver rather than digitally creating a new waveform as the drive
`
`signal based on an analysis of the sensor signal.” Defs.’ Resp. Claim Constr. Br. at 19, ECF No.
`
`137. Like its new construction of “digital synthesis mode,” however, Defendants’ new
`
`construction of “positive feedback mode” is also defective. As set forth above in the discussion
`
`of “digital synthesis mode,” Defendants’ negative “rather than” limitation is confusing and
`
`unnecessary. See supra Part II.C.1.
`
`III.
`
`Digital System Terms
`
`A.
`
`“Input module,” “output module,” and “processing devices”
`
`Invensys has already refuted Defendants’ arguments that the terms “input module,”
`
`“output module,” and “processing device” are indefinite at length in its response to Defendants’
`
`letter brief on indefiniteness, ECF No. 131-1, at 1-3. In sum, numerous decisions have rejected
`
`Defendants’ argument, dictionaries provide structural definitions of these terms, the specification
`
`discloses devices that correspond to the claimed “input” and “output modules,” and a skilled
`
`artisan would understand that a “processing device” is a processor.
`
`EAST\74868091.10
`
`8
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 12 of 14 PageID #: 4375
`
`B.
`
`“A digital control system”
`
`Defendants’ argument ignores Invensys’s explanation that in a “digital control system”
`
`both measurement and control are processed digitally. See Pl.’s Opening Claim Constr. Br. at 25,
`
`ECF No. 122; see also ʼ906 Pat. 2:10-13, 12:14-15. Although the digital control system’s input
`
`devices are analog (which will be true in virtually any digital device), the ʼ906 patent requires
`
`measurement and control of the flowmeter to be performed digitally (i.e., the control system
`
`operates in the digital domain).
`
`IV.
`
`Data Collection Terms
`
`A.
`
`“Data for a complete cycle of the periodic sensor”
`
`Defendants appear to argue that although the patented Coriolis flowmeter can sample and
`
`store data for more than one cycle, it can never process data for more than one cycle. See Defs.’
`
`Resp. Claim Constr. Br. at 24, ECF No. 137. On its face, this is a non sequitur. That data can be
`
`sampled and stored for more than one cycle does not mean that data cannot be processed for
`
`more than one cycle. In fact, the opposite inference is more rational (i.e., if the flowmeter can
`
`sample and store data for more than one cycle, it can also process data for more than one cycle).
`
`This is even confirmed by the portions of the specification Defendants cite. For example,
`
`the specification states: “[C]alculations are based on complete but overlapping cycles. Each
`
`cycle starts at a zero crossing point, halfway through the previous cycle.” ʼ062 Pat. 37:36-39.
`
`Likewise, in some implementations calculations are performed on cycles that “overlap by 180°
`
`or other amounts (e.g., 90°) so that a cycle is subsumed within the cycles that precede and follow
`
`it.” Id. at 12:53-55. These embodiments would be completely impossible under Defendants’
`
`construction since their construction requires processing “data for one and only one complete
`
`cycle.” That is, performing calculations using data from overlapping cycles necessarily entails
`
`using data for more than one cycle. Far from being red herrings or supporting Defendants’
`
`construction,
`
`these portions of
`
`the specification prove beyond doubt
`
`that Defendants’
`
`construction of “data for a complete cycle of the periodic sensor” is wrong.
`
`EAST\74868091.10
`
`9
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 13 of 14 PageID #: 4376
`
`B.
`
`“Zero offset”
`
`Although Defendants profess confusion about Invensys’s explanation of a “zero offset,”
`
`the parties actually appear to understand the usual meaning of this term in the same way. That is,
`
`when a measurement instrument (such as a flowmeter) is operating without a measureable
`
`amount of whatever it is designed to measure, it should not produce a measurement (i.e., it
`
`should read zero). Nevertheless, the instrument may (for a variety of reasons) measure a value
`
`greater than zero. This is a simple explanation of the zero offset.
`
`Defendants then attempt to import additional limitations into the usual use of this term
`
`that are once again directly contradicted by the specification. The primary error in Defendants’
`
`construction is their insistence that the zero offset must be an average of the measured amplitude.
`
`But the ʼ062 patent discloses additional factors that impact the zero offset. The “average
`
`measured amplitude of the signal” refers to the signal received from the sensors. But the ʼ062
`
`patent notes that zero offset can arise not only from the sensors, but from the pre-amplification
`
`circuitry, the A/D convertors, and the differential circuitry, which are part of the control and
`
`measurement system. See ʼ062 Pat. 16:48-53.
`
`CONCLUSION
`
`For the foregoing reasons, and the reasons set forth in Invensys’s Opening Claim
`
`Construction Brief, the Court should adopt Invensys’s proposed constructions.
`
`Dated: April 18, 2014
`
`Respectfully submitted,
`
`/s/ Claudia Wilson Frost
`Claudia Wilson Frost
`State Bar No. 21671300
`Jeffrey L. Johnson
`State Bar No. 24029638
`Dawn M. Jenkins
`State Bar No. 24074484
`DLA PIPER LLP
`1000 Louisiana, Suite 2800
`Houston, TX 77002
`Telephone: 713.425.8400
`Facsimile: 713.425.8401
`
`EAST\74868091.10
`
`10
`
`

`
`Case 6:12-cv-00799-JRG Document 147 Filed 04/18/14 Page 14 of 14 PageID #: 4377
`
`Claudia.Frost@dlapiper.com
`Jeffrey.Johnson@dlapiper.com
`Dawn.Jenkins@dlapiper.com
`
`Nicholas G. Papastavros
`Daniel Rosenfeld
`DLA PIPER LLP
`33 Arch Street, 26th Floor
`Boston, MA 02110
`Telephone: 617.406.6000
`Facsimile: 617.406.6100
`Nick.Papastavros@dlapiper.com
`Daniel.Rosenfeld@dlapiper.com
`
`Todd S. Patterson
`DLA PIPER LLP
`401 Congress Ave., Suite 2500
`Austin, TX 78701-3799
`Telephone: 512.457.7017
`Facsimile: 512.721.2217
`todd.patterson@dlapiper.com
`
`ATTORNEYS FOR PLAINTIFF
`INVENSYS SYSTEMS, INC.
`
`CERTIFICATE OF SERVICE
`
`The undersigned certifies that on April 18, 2014, all counsel of record who are deemed to
`have consented to electronic service are being served with a copy of this document via the
`Court’s CM/ECF system per Local Rule CV-5(a)(3). Any other counsel of record will be served
`by facsimile transmission and/or first class mail.
`
`/s/ Claudia Wilson Frost
`Claudia Wilson Frost
`
`EAST\74868091.10
`
`11

This document is available on Docket Alarm but you must sign up to view it.


Or .

Accessing this document will incur an additional charge of $.

After purchase, you can access this document again without charge.

Accept $ Charge
throbber

Still Working On It

This document is taking longer than usual to download. This can happen if we need to contact the court directly to obtain the document and their servers are running slowly.

Give it another minute or two to complete, and then try the refresh button.

throbber

A few More Minutes ... Still Working

It can take up to 5 minutes for us to download a document if the court servers are running slowly.

Thank you for your continued patience.

This document could not be displayed.

We could not find this document within its docket. Please go back to the docket page and check the link. If that does not work, go back to the docket and refresh it to pull the newest information.

Your account does not support viewing this document.

You need a Paid Account to view this document. Click here to change your account type.

Your account does not support viewing this document.

Set your membership status to view this document.

With a Docket Alarm membership, you'll get a whole lot more, including:

  • Up-to-date information for this case.
  • Email alerts whenever there is an update.
  • Full text search for other cases.
  • Get email alerts whenever a new case matches your search.

Become a Member

One Moment Please

The filing “” is large (MB) and is being downloaded.

Please refresh this page in a few minutes to see if the filing has been downloaded. The filing will also be emailed to you when the download completes.

Your document is on its way!

If you do not receive the document in five minutes, contact support at support@docketalarm.com.

Sealed Document

We are unable to display this document, it may be under a court ordered seal.

If you have proper credentials to access the file, you may proceed directly to the court's system using your government issued username and password.


Access Government Site

We are redirecting you
to a mobile optimized page.





Document Unreadable or Corrupt

Refresh this Document
Go to the Docket

We are unable to display this document.

Refresh this Document
Go to the Docket