throbber
Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`1
`
` UNITED STATES PATENT AND TRADEMARK OFFICE
` _________________________________________
` BEFORE THE PATENT TRIAL AND APPEAL BOARD
` _________________________________________
` GOOGLE LLC,
` Petitioner,
` v.
` VOCALIFE LLC,
` Patent Owner.
` _________________________________________
` Case IPR2022-00004
` Patent RE47,049
` _________________________________________
`
` REMOTE DEPOSITION OF JOSEPH MCALEXANDER
`
` Thursday, September 29, 2022
` 10:03 a.m. (EDT)
`
`STENOGRAPHICALLY REPORTED BY:
`Deanna J. Dean, RDR, CRR
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`GOOGLE EXHIBIT 1023
`GOOGLE v. VOCALIFE
`IPR2022-00004
`
`Page 1 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`2
`
` UNITED STATES PATENT AND TRADEMARK OFFICE
` _________________________________________
`
` BEFORE THE PATENT TRIAL AND APPEAL BOARD
` ________________________________________
` GOOGLE LLC,
` Petitioner,
` v.
` VOCALIFE LLC,
` Patent Owner.
` _________________________________________
` Case IPR2022-00005
` Patent RE48,371
`
`1 2
`
`3
`
`4 5
`
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 2 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`3
`
` Thursday, September 29, 2022
` 10:03 a.m. EDT
`
` Remote deposition of JOSEPH MCALEXANDER,
` held via Zoom videoconference, before Deanna J.
` Dean, a Registered Diplomate Reporter, Certified
` Realtime Reporter, and licensed court reporter
` of the state of New Hampshire.
`
`1 2
`
`3
`
`4 5 6
`
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 3 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`4
`
` A P P E A R A N C E S
`
`Attorneys for Petitioner:
`FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER LLP
` 1875 Explorer Street, Suite 800
` Reston, VA 20190-6023
` (571) 203-2793
`BY: DANIEL C. TUCKER, ESQ.
` daniel.tucker@finnegan.com
`
`FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER LLP
` 901 New York Avenue, NW
` Washington, DC 20001-4413
` (202) 408-6020
`BY: MINGJI JIN, PHD, ESQ.
` mingji.jin@finnegan.com
`
`Attorneys for Patent Owner:
`FABRICANT LLP
` 411 Theodore Fremd Road, Suite 206 South
` Rye, NY 10580
` (646) 797-4361
`BY: ENRIQUE W. ITURRALDE, ESQ.
` eiturralde@fabricantllp.com
`
`1
`
`2 3
`
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 4 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`5
`
` I N D E X
`
` Examination Page
` JOSEPH MCALEXANDER
` By Attorney Tucker 7
`
` E X H I B I T S
`
` Number Description Page
`
` None marked.
`
`1
`
`2 3
`
`4
`5
`
`6 7 8 9
`
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 5 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`6
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` P R O C E E D I N G S
` THE REPORTER: Here begins the remote
` deposition of Joseph McAlexander, taken in the
` matter of Google LLC, Petitioner, v. Vocalife
` LLC, Patent Owner, pending in the United States
` Patent and Trademark Office before the Patent
` Trial and Appeal Board, Case Nos. IPR2022-00004
` and IPR2022-00005.
` Today's date is September 29, 2022.
` The time is now 10:03 a.m. Eastern Daylight
` Time.
` This deposition is being held remotely by
` Zoom videoconferencing. I am the licensed court
` reporter, Deanna Dean, presenting on behalf of
` Henderson Legal Services.
` Will counsel please introduce themselves
` and state whom they represent, beginning with
` the party noticing the deposition.
` ATTORNEY TUCKER: This is Daniel Tucker
` from Finnegan on behalf of Petitioner.
` Also with me today is Mingji Jin, also
` from Finnegan, on behalf of Petitioner.
` ATTORNEY ITURRALDE: This is Enrique
` Iturralde from Fabricant LLP on behalf of Patent
` Owner.
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 6 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`7
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` THE REPORTER: At this time, do all
` parties agree to waive any objection, now or in
` the future, to me swearing in the witness
` remotely?
` ATTORNEY TUCKER: No objection.
` ATTORNEY ITURRALDE: No objections.
` JOSEPH MCALEXANDER,
`a witness called for examination, having been first
`duly sworn according to law, was deposed and
`testified as follows:
` EXAMINATION
`BY ATTORNEY TUCKER:
` Q. Good morning, Mr. McAlexander. How are
`you doing today?
` A. I'm doing very well today.
` Q. Great.
` You understand that you were just sworn in
`and you're testifying under oath today. Correct?
` A. Yes, I understand that.
` Q. Great.
` Is there any reason you wouldn't be able
`to give truthful and accurate testimony today?
` A. No.
` Q. Okay. Did you bring any documents with
`you today for the deposition?
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 7 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`8
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` A. Yes.
` Q. Okay. What documents do you have with you
`today?
` A. There are -- as I understand, there are
`two IPRs that are the subject of this case, and so
`for each one of the IPRs, I printed off, for
`instance, Google Exhibit 1001 for the '049 patent.
`So I printed off a copy of the patent, a copy of my
`declaration. For each of the two cases, I printed
`off a copy of the petition, the patent owner's
`preliminary response, and the decision.
` And then certain -- certain pieces of the
`art that were represented for each of the two
`cases, I printed off as well. For instance, on the
`0004 case, I printed off a copy of Jeong. That's
`spelled J-e-o-n-g.
` Should I go ahead and give the patent
`publication numbers or is that sufficient?
` Q. I think just referring to them by the
`reference name like you did with Jeong is fine.
` A. Okay.
` Secondly, the article by Briere, spelled
`B-r-i-e-r-e. Patent to Buck. Another patent to
`Kim, K-i-m. Printed off a copy to Yen, Y-e-n.
`Another patent to Andrea. A-n-d-r-e-a.
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 8 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`9
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` And some other references that were
`referenced, I printed off as well, although they
`may not be the subject of today. It's an article
`by Lathoud. It's spelled L-a-t-h-o-u-d. A
`beamforming article by Van Veen and Buckley.
` I also printed off a copy of the Vocalife
`v. Amazon claim construction memorandum opinion and
`order that was dated 6th of April, 2020.
` I also printed off a copy which is labeled
`as Exhibit A, plaintiff Vocalife LLC and defendant
`Google LLC accepted claim constructions. It's a
`chart, one-page chart. And I also printed off the
`declaration of Dr. Zuckerman.
` And so that's what I have done for each
`one of the cases.
` Let me turn to the 005 and give you the
`art that I printed. Some of the art overlaps with
`the 004, so I did not double-print that. But the
`additional documents are the patent publication to
`Mao, M-a-o. The publication, patent publication to
`Buck. And that's the sum total of what I printed
`off.
` Q. Okay. Great.
` Do you have any notes or highlighting on
`any of those documents?
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 9 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`10
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` A. No, sir, I do not.
` Q. Do you have any markings at all on any of
`those documents?
` A. No, sir. Just as it came off the printer.
` Q. Okay. Great.
` And you mentioned, I believe, that all of
`those documents are in printed form. Right?
` A. Yes, that's correct.
` Q. Do you have any documents open on your
`computer right now?
` A. Just the Henderson Legal Services and
`Zoom, and I have open File Explorer to a folder
`called "Plaintiff Depo" where I download the
`Henderson Legal documents. That's the only thing
`I've got open.
` Q. Okay. Perfect.
` What did you do to prepare for today's
`deposition?
` A. I did a lot of printing.
` Q. Apparently, yeah.
` A. Fortunately, my computer -- my printer is
`double-sided, so it helps a little bit.
` I reviewed the documents that I just read
`into the record, reread the patents, the '049 and
`'371. Certainly read through my declaration and
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 10 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`11
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`each one of the documents in terms of rereading
`through the petition and the responses and the
`decision. And also met with counsel yesterday for
`probably about 30 minutes.
` Q. Okay. Great.
` And do you -- I think you mentioned that
`you reread both the '049 and the '371 patents that
`are subject to each of the proceedings that we're
`talking about today. Right?
` A. Yes, that's correct.
` Q. Okay. So you -- when you reviewed them,
`did you review also the claims of the '049 and '371
`patents?
` A. Well, to be very specific, since the '371
`is a continuation from the reissue '049, I looked
`at the '049. I didn't reread the same words for
`the '079. But then I also looked the claims as
`reissued at the end of both patents.
` Q. Okay. Great.
` So you did review the claims of both the
`'049 and '371 patents yesterday as part of your
`review. Right?
` A. Yes, sir. That's correct.
` Q. Okay. And you've testified before
`regarding the '049 patent. Right?
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 11 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`12
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` A. Yes, I have.
` Q. Specifically, you testified at trial in a
`District Court case between Vocalife and Amazon
`involving the '049 patent. Correct?
` A. Yes, that is correct.
` Q. Was your testimony during that trial
`truthful?
` A. Yes.
` Q. Was it accurate?
` A. Yes.
` Q. Okay. You also testified before regarding
`the '371 patent. Correct?
` A. I have, yes.
` Q. Specifically, you were deposed in an IPR
`proceeding between Amazon and Vocalife involving
`the '371 patent. Correct?
` A. That is correct.
` Q. Was your testimony during that deposition
`truthful?
` A. Yes.
` Q. Was it accurate?
` A. Yes.
` Q. So I'd like to talk a little bit about the
`'049 and '371 patents.
` As you mentioned, those are Exhibits 1001
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 12 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`13
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`in each of the proceedings. For example, the '049
`patent is Exhibit 1001 in IPR 2022-00004, and the
`'371 patent is Exhibit 1001 in IPR 2022-00005.
` I have uploaded electronic versions of
`those two patents to the folder that you mentioned
`that I believe you have open on your computer.
`You're more than welcome, obviously, to refer to
`those electronic copies or to the paper copy,
`whichever is easiest for you.
` A. All right. Thank you.
` Q. I'll be just asking you some questions
`about those patents.
` So the '049 and '371 patents both refer to
`a microphone array system. Correct?
` A. That is correct.
` Q. Okay. You are not an expert in microphone
`arrays. Correct?
` ATTORNEY ITURRALDE: Objection. Form.
` A. No. As I've testified before, I have used
`microphone array -- microphone and array systems at
`the larger level. I used the microphones
`themselves, but not in terms of a systematic array
`as contemplated in this patent.
` Q. And, likewise, you have not authored any
`publications on microphone arrays. Correct?
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 13 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`14
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` A. That's correct.
` Q. You have not taught any courses related to
`microphone arrays. Correct?
` A. Correct.
` Q. Microphone arrays were known in the art
`before September 2010. Correct?
` ATTORNEY ITURRALDE: Object to form.
` A. Yes.
` Yes, generally, yes, they were known.
` Q. Thank you. Okay.
` And, likewise, the use of linear
`microphone arrays for beamforming was known in the
`art before September 2010. Correct?
` A. Yes.
` Q. And the use of circular microphone arrays
`for beamforming was known in the art before
`September 2010. Correct?
` ATTORNEY ITURRALDE: Objection. Form.
` A. Correct.
` Q. The '049 and '371 patents also both refer
`to sound source localization. Correct?
` A. They do.
` Q. You are not an expert in sound source
`localization. Correct?
` ATTORNEY ITURRALDE: Objection. Form.
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 14 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`15
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` A. I don't consider myself an expert in that.
`I have used arrays for local -- for identifying
`target location, but, no, I don't consider myself
`an expert in that particular subject.
` Q. You have not authored any publications or
`technical papers on sound source localization.
`Correct?
` A. That's correct.
` Q. You have not taught any courses related to
`sound source localization. Correct?
` A. Correct.
` Q. Sound source localization was known in the
`art before September 2010. Correct?
` ATTORNEY ITURRALDE: Objection. Form.
` A. The general subject matter of it was
`known, yes.
` Q. You are familiar with the phrase "time
`difference of arrival" or TDOA. Correct?
` A. Yes.
` Q. You agree that TDOA was known in the art
`before September 2010. Correct?
` A. Yes.
` Q. You agree that using TDOA for sound source
`localization was known in the art before September
`2010. Correct?
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 15 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`16
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` A. Yes.
` Q. You are familiar with the phrase "steered
`response power" or SRP. Correct?
` A. Yes.
` Q. And you are also familiar with "SRP phase
`transform" or SRP-PHAT. Correct?
` A. Yes.
` Q. And both SRP and PH -- sorry. Strike
`that. Let me start over.
` Both SRP and SRP-PHAT were known prior to
`September 2010. Correct?
` ATTORNEY ITURRALDE: Objection. Form.
` A. Yes, they were.
` Q. You agree that using SRP and SRP-PHAT for
`sound source localization was known in the art
`before September 2010. Correct?
` ATTORNEY ITURRALDE: Objection. Form.
` A. The general aspect of it, yes.
` Q. The '049 and '371 patents also refer to
`adaptive beamforming. Correct?
` A. They do.
` Q. You're not an expert in adaptive
`beamforming. Correct?
` ATTORNEY ITURRALDE: Objection. Form.
` A. No. As I have stated in previous
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 16 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`17
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`testimony, I have used directional miking to
`maximize the power distribution of sound. But in
`terms of being an expert in it, no.
` Q. You've not authored any publications or
`technical papers on adaptive beamforming. Is that
`right?
` A. Correct.
` Q. You have not taught any courses related to
`adaptive beamforming. Is that correct?
` A. Correct.
` Q. Do you agree that adaptive beamforming was
`known in the art before September 2010?
` A. The general subject matter of adaptive
`beamforming was known, yes.
` ATTORNEY ITURRALDE: Object to form.
` Q. Do you agree that using an adaptive
`beamformer in a microphone array system to enhance
`a sound signal and suppress ambient noise was known
`in the art before September 2010?
` ATTORNEY ITURRALDE: Objection. Form.
` A. There were aspects of it that were known.
` Q. What do you mean by "there were aspects of
`it that were known"?
` A. There were different ways in which it can
`be instantiated. There were certain ways that were
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 17 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`18
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`known.
` Q. Can you provide an example of one of those
`certain ways that were known?
` A. For measuring power. Steering in
`accordance with the direction where you have the
`most power being received.
` Q. So that's an articular application for
`using the adaptive beamformer to enhance a sound
`signal?
` ATTORNEY ITURRALDE: Objection.
` Q. Correct?
` A. Correct.
` Q. The '049 and '371 patents refer to a noise
`reduction unit. Correct?
` A. That's correct.
` Q. You are not an expert in programming
`processors to perform noise reduction. Is that
`correct?
` ATTORNEY ITURRALDE: Objection. Form.
` A. Your specific question was with regard to
`programming processors to reduce -- to do noise
`reduction. The answer is that is correct; I am
`not -- have not done that. But I have spent many
`years in the design of integrated circuits in which
`noise reduction was a part of the filtering process
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 18 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`19
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`that I did design. So I am familiar with noise
`reduction.
` Q. So you are familiar with noise reduction,
`but you have not programmed processors to perform
`noise reduction. Is that correct?
` A. I believe that's what I stated at the
`beginning of my response, that I have not
`programmed processors but I have designed circuits
`specifically addressing noise reduction. And I --
` Q. Have you authored any -- oh. I'm sorry to
`cut you off.
` A. No, I'm sorry. I was going to finish.
` I've designed circuits that specifically
`address noise reduction are -- and they are
`software-controlled, but they weren't part of a
`processor.
` Q. Understood.
` Have you authored any publication or
`technical papers on noise reduction in microphone
`arrays?
` A. Not with regard to microphone arrays, no.
` Q. Have you taught any courses related to
`noise reduction in microphone arrays?
` A. No, I have not.
` Q. You agree that using noise reduction
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 19 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`20
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`algorithms to suppress ambient noise signals and
`enhance a target sound signal in a microphone array
`system was known in the art before September 2010.
`Correct?
` ATTORNEY ITURRALDE: Objection. Form.
` A. That is correct.
` Q. The '049 and '371 patents do not describe
`any new noise reduction algorithm. Is that
`correct?
` ATTORNEY ITURRALDE: Objection to form.
` A. Can you repeat that, please.
` Q. Sure.
` The '049 and '371 patents do not describe
`any new noise reduction algorithm. Is that
`correct?
` ATTORNEY ITURRALDE: Objection. Form.
` A. No, they don't -- I don't think they
`describe any new algorithm. They certainly have,
`as required by the claims, the incorporation of the
`noise reduction and the other units in DSP. But in
`terms of a different algorithm, no.
` Q. The '049 and '371 patents refer to echo
`cancelation. Is that correct?
` A. That's correct. Both patents address
`that.
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 20 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`21
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` Q. You are not an expert in programming
`processors to perform echo cancelation in
`microphone arrays. Is that correct?
` ATTORNEY ITURRALDE: Objection to form.
` A. Not in terms of programming. I have as a
`designer of acoustic systems employed noise
`cancelation, but I have not done that in --
`specifically to answer your question, in the
`programming of a processor.
` Q. You have not authored any publications or
`technical papers on echo cancelation in microphone
`arrays. Correct?
` A. Correct.
` Q. You have not taught any courses related to
`echo cancelation in microphone arrays. Correct?
` A. Correct.
` Q. You agree that using echo cancelation in
`microphone array systems was known in the art
`before September 2010. Correct?
` ATTORNEY ITURRALDE: Objection to form.
` A. Echo cancelation was known.
` Q. The '049 and '371 patents do not describe
`any new echo cancelation algorithm. Correct?
` A. Correct.
` Q. The '049 and '371 patents also refer to a
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 21 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`22
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`digital signal processor or DSP. Correct?
` A. Yes, that's correct.
` Q. Are you familiar with the state of the art
`of digital signal processors as of September 2010?
` A. Yes.
` Q. There were many different types of known
`digital signal processors before September 2010.
`Correct?
` A. There were different types with different
`capabilities.
` Q. And, in fact, digital signal processors
`were available long before 2010. Correct?
` ATTORNEY ITURRALDE: Objection to form.
` A. Some digital signal processors were
`available long before 2010, yes.
` Q. A person of ordinary skill in the art
`would have understood that a digital signal
`processor could perform echo cancelation faster
`than a general-purpose processor. Correct?
` ATTORNEY ITURRALDE: Objection to form.
` A. The thesis that you're proposing is that
`one of skill in the art would know, or could, that
`a processor -- that the DSP could do it.
` Perhaps. It depends upon the architecture
`of the particular DSP and the way in which the
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 22 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`23
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`circuitry and the program has been instantiated in
`that DSP. Some may be able to process it faster;
`some may not. It depends upon the algorithm that's
`used and it depends upon the processor that's used.
`So it's not a given that it's going to be faster.
` Q. You agree, then, correct, that in some
`instances, a DSP would have been able to perform
`echo cancelation faster than a general-purpose
`processor. Correct?
` ATTORNEY ITURRALDE: Objection to form.
` A. A DSP has capability, but the extent of
`that capability is going to be defined by the
`circuit under software program control in that DSP.
`So it depends on the DSP. It depends upon the
`circuitry in the DSP. It depends upon the level of
`programming that's permitted. It also depends upon
`the degree of sophistication that you desire in
`terms of the cancelation.
` So the capability may be there, and it may
`be such that it could be faster. But, again, that
`depends upon the particular DSP, based upon its
`circuitry and programmation.
` Q. Likewise, if we're comparing the
`capabilities of the DSP to the general-purpose
`processor, your answer would also depend on the
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 23 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`24
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`capabilities of the general-purpose processor. Is
`that correct?
` A. I'm trying to envision a general-purpose
`processor that does not have the higher-level
`mathematical capability. I would say utilizing a
`general-purpose processor, which is primarily
`logic-based, and putting higher-level math is
`probably going to take an inordinate amount of time
`longer. And typically when you have functions like
`that that require some higher end, you have to --
`have to utilize the processor with something like
`an application-specific IC in ASIC that is
`specifically hardware design, to maybe help or to
`assist. But if you're going to involve something
`that requires the higher-end mathematical
`instructions, the general-purpose processor will
`most likely never be able to meet what a DSP can
`do.
` Q. And, likewise, a person of ordinary skill
`in the art would have understood that a DSP could
`perform noise reduction faster than a
`general-purpose processor. Correct?
` ATTORNEY ITURRALDE: Objection to form.
` A. I was looking at Briere just as kind of a
`backdrop to answer your question, Mr. Tucker. It's
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 24 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`25
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`one thing to understand that, generally speaking,
`the capabilities may exist, but it's another thing
`to be able to actually utilize the DSPs that
`existed at the time and program them in order to
`accomplish that. And Briere proved that he could
`not. He had a number of different things that he
`was especially at trying to instantiate, but it
`didn't work. Didn't even come up close to being
`practically implementable.
` So it's not a guarantee that one is going
`to do something faster just because you put it or
`instantiate it in a DSP. There has to be a DSP
`that can be programmed specifically for the
`higher-level math in order to accomplish that, and
`then, based upon the circuit implementation, you
`may or may not get it faster.
` Q. Is it your testimony that the
`general-purpose processor would perform noise
`reduction faster than a DSP?
` ATTORNEY ITURRALDE: Objection to form.
` A. No. That goes back to my prior statement
`that the general-purpose processor is probably on a
`1:1 basis is not going to be able to perform to the
`same -- at the same speed, at the same level of
`complexity as a DSP, because the DSP is
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 25 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`26
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`specifically designed with the higher-level math
`functions, and it's done that by matching hardware
`and software in order to expedite the instruction
`processing. I don't think a general-purpose
`processor is going to be able to keep up with that
`specifically -- when you're talking about the
`higher-level math functions, the processor, a
`general processor is not going to be able to keep
`up with that.
` But there are ways to implement it in
`modular form in discrete components that can be
`faster than a general processor. And I think
`Briere proved that, because he showed that his
`thoughts, his predictable results became
`unpredictable because what resulted in in his
`evaluation was something that didn't work and
`didn't measure up to the other way of doing it.
` So I think the -- from a 1:1
`correspondence, running a higher-level math
`algorithm, the general-purpose processor is not
`going to have the speed -- even if programmed to do
`it -- that the DSP will have, because the DSP is
`specially designed to process those higher-level
`functions.
` Q. I see.
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 26 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`27
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` So on a 1:1 basis, a DSP would perform
`noise reduction faster than a general-purpose
`processor. Correct?
` ATTORNEY ITURRALDE: Objection to form.
` A. If -- when you say on a 1:1 basis, if you
`tried to take the higher-level math algorithm and
`process that -- process inputs through that
`algorithm in a general processor, that will most
`likely take a significantly longer period of time
`than the DSP, which has been specifically designed
`to handle the higher-level function.
` But that's -- that's compared to a general
`processor. If you looked at it on a comparison to
`other discrete components that specifically were
`designed to handle that, they may be as fast, if
`not faster, in some instances. Depends upon the
`DSP.
` Q. All right. And so, Mr. McAlexander, I
`just want to make sure we're on the same page.
` I used the phrase "1:1 basis." You had
`used the phrase "1:1 basis" earlier, and then in a
`subsequent answer you used the phrase "1:1
`correspondence." What do you mean by that?
` A. I'm not trying to differentiate that from
`a 1:1 basis. Usually when you instantiate a
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 27 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`28
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
`particular algorithm, for instance, to be processed
`in a general processor as compared to a DSP, that's
`a 1:1 basis in terms of the use of the same
`algorithm, but the way in which that is implemented
`is basically a correspondence. Now you have a
`correspondence way of implementing that to process
`the information to get a result.
` I don't think for the -- for this level of
`discussion we're having, "1:1 basis" or "1:1
`correspondence" can be interchangeable.
` Q. Okay. Kind of like "all things being
`equal." Right? Is that kind of what you mean by
`it?
` A. Interesting way of phrasing it, but, yes,
`all things being equal. In other words, I'm not
`involving ASICs. I'm not involving FPGAs or other
`kinds of things working and cooperating with a
`processor. We're just doing a 1:1 comparison of a
`general processor and a DSP performing the same
`algorithm. The DSP will win hands down.
` Q. All right. Understood.
` And so, likewise, on a 1:1 basis, a DSP
`would also perform adaptive beamforming faster than
`a general-purpose processor. Correct?
` ATTORNEY ITURRALDE: Objection to form.
`
`202-220-4158
`
`Henderson Legal Services, Inc.
`www.hendersonlegalservices.com
`
`Page 28 of 41
`
`

`

`Case IPR2022-00004, 2022-00005
`McAlexander, Joseph
`September 29, 2022
`
`29
`
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`13
`14
`15
`16
`17
`18
`19
`20
`21
`22
`23
`24
`25
`
` A. Again, using the 1:1 basis aspect, I would
`say yes.
` Q. And similarly, on a 1:1 bas

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