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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 1 of 17
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`EXHIBIT B
`EXHIBIT B
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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 2 of 17
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`PROSECUTION/ACQUISITION BAR MATERIALS
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`
`UNITED STATES DISTRICT COURT
`SOUTHERN DISTRICT OF NEW YORK
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`
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`
`
`14 Civ. 2396 (PGG-SN)
`
`14 Civ. 9558 (PGG-SN)
`
`
`NETWORK-1 TECHNOLOGIES, INC.
`
`
`
`Plaintiff,
`
`- against -
`
`
`GOOGLE LLC and YOUTUBE, LLC
`
`Defendants.
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`
`
`EXPERT REPORT OF DR. SAMRAT BHATTACHARJEE
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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 3 of 17
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`identification.”422 In my opinion, the technology described in the Iceberg Patents is comparable
`
`to that described in the Asserted Patents.
`
`XVI. THERE ARE NO TECHNICAL IMPEDIMENTS TO THE NON-INFRINGING
`ALTERNATIVE OF GEOGRAPHICALLY LOCATING A PORTION OF
`DEFENDANTS’ CONTENT ID SYSTEM OUTSIDE OF THE UNITED STATES
`
`453.
`
`I understand that Defendants contend that an “available non-infringing alternative
`
`is geographically locating the servers running the Accused Instrumentalities, or a portion of the
`
`Accused Instrumentalities, outside of the United States.”423
`
`454. On February 10, 2020, I spoke with Matthias Konrad, the lead engineer for Content
`
`ID, and Oleg Ryjkov, a member of Mr. Konrad’s team, to gain a further understanding of the
`
`geographical location of the servers running Defendants’ Content ID system. Based on that
`
`conversation and my review of the other evidence, I understand that
`
`
`
` typically is performed in the same data center where
`
`YouTube generates transcodes of user-uploaded videos.424 These data centers currently are located
`
`in at least Asia, Europe, South America, and the United States.425
`
`455.
`
`I understand that the Match System component of the Content ID system currently
`
`operates on machines located in the United States and Europe.426 With respect to
`
` there are currently
`
`
`
`
`
`
`422 Mitzenmacher Rep. ¶ 294.
`423 Defendants’ Third Supplemental Response to Plaintiff’s Interrogatory No. 13; see
`Mitzenmacher Rep. ¶ 505.
`
`424 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020; Konrad Depo. Tr.
`52:14–53:7.
`
`425 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`426 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
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`212
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` on machines located in the United States and
`
` on
`
`machines located in Europe.427
`
`456.
`
`I understand that
`
` runs on different servers than
`
`
`
`.428 The servers running
`
` may be located in different data centers than
`
`those running
`
`.429 The servers that serve videos and advertisements to YouTube
`
`viewers likewise may be in altogether different data centers than the servers that run the
`
`
`
`430
`
`457.
`
`In my opinion, there are no technical barriers to relocating the instances of the
`
`Match System that are currently located in the United States to another country. I have reviewed
`
`Dr. Mitzenmacher’s analysis of this non-infringing alternative, which includes his assertion that
`
`“there are significant outstanding questions (both technical and cost-related) concerning whether
`
`or not locating the servers (or a portion of the servers) running the Content ID Accused
`
`Instrumentalities outside the United States is a viable alternative.”431 I disagree with Dr.
`
`Mitzenmacher.
`
`458. The geographical location of servers affects latency. All else equal, the time it takes
`
`to transmit data from one server to another increases as the distance between them increases.
`
`Typically data transmitted on a fiber-optic network will travel at around two-thirds the speed of
`
`light, or about 5 microseconds (0.000005 seconds) per kilometer. The chart below illustrates
`
`
`427 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`428 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`429 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`430 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`431 Mitzenmacher Rep. ¶ 505.
`
`213
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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 5 of 17
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`approximate round-trip transmission times in milliseconds (0.0001 seconds) for data traversing a
`
`fiber-optic cable:432
`
`
`
`459. As the chart above indicates, a round-trip data transmission from New York City
`
`to San Francisco using a fiber-optic cable would take approximately 0.042 seconds, while a
`
`transmission from New York City to London would take approximately 0.056 seconds.433 The
`
`chart below illustrates the round-trip transmission time in milliseconds for certain trans-Atlantic
`
`submarine fiber-optic cables in use in 2015:434
`
`
`432 Ilya Grigorik, High Performance Browser Networking, available online at
`https://hpbn.co/primer-on-latency-and-bandwidth/.
`
`
`433 As discussed below, the transmitting data
`requires a modest amount of bandwidth, such that there would be little or no additional latency
`due to queuing of the data. See ¶¶ 469–72 supra.
`
`434 TeleGeography and Hibernia Networks, Trans-Atlantic Network Latency Reduced (Oct. 9,
`2015), available online at https://www.thebroadcastbridge.com/content/entry/3988/trans-atlantic-
`network-latency-reduced.
`
`214
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`
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`460.
`
` Distance-based latency can be an important consideration for some products and
`
`services. For example, a delay of a few milliseconds might make a difference to investment firms
`
`that run automated high-frequency trading platforms that are designed to buy and sell stocks a
`
`fraction of a second before the rest of the market moves. Relatively small amounts of latency can
`
`also affect the user’s experience with certain web services, such as live multiplayer online gaming.
`
`461. For Defendants’ Content ID system, however, distance-based latency is nearly
`
`irrelevant. According to Mr. Konrad, Defendants’ Content ID system is designed to complete the
`
`matching and claiming processes
`
` Mr.
`
`Konrad provided the following answers to questions from Network-1’s counsel:435
`
`
`
`
`435 Konrad Depo. Tr. 138:23–1451:15.
`
`215
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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 7 of 17
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`
`the amount of time to process an incoming
`
`user-generated video? Not so muchlive streams,
`
`but normal uploads?
`
`
`
`Q. And what does that translate to in
`terms of the latency requirement?
`
`Correct?
`
`MR. HARDY: Objection to form.
`
`
`
`216
`216
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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 8 of 17
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`
`
`
`462. Relocating the US-based Match System component of the Content ID system to a
`
`country other than the United States would have no meaningful effect on Defendants’ ability to
`
`meet their stated goals with respect to latency. For example: Assume that Defendants relocated
`
`the portion of the Match System that currently operates in the United States to Europe, where the
`
`other servers currently running the Match System are located.436 The relocation could contribute
`
`
`436 There may be practical reasons why Defendants would not want to have all instances of a
`system operating in the same data center, such as the risk that the lone data center would go offline
`due to a natural disaster, power outage, or other event. For purposes of this example, one could
`assume that Defendants would
`
` As discussed
`further below, the analysis does not change meaningfully if it is assumed that the U.S.-based Match
`217
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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 9 of 17
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`additional distance-based latency because the data
`
`
`
` that are generated in the United States would need to be transmitted to Europe after
`
`they are generated, rather than being sent to nearby servers operating the Match System in the
`
`United States.
`
`463. As discussed, however, the latency attributable to the added distance between
`
`certain servers following a relocation would be measured in milliseconds, as there are numerous
`
`fiber-optic undersea cables capable of transmitting data between the United States and Europe with
`
`latency less than 100 milliseconds (i.e., 0.1 seconds).437 That is a small fraction of the overall time
`
`available for the Content ID system to determine whether a newly uploaded video should be
`
`subject to one or more claims. As noted, Mr. Konrad testified that
`
`
`
`
`
`
`
`
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`.438
`
`464. The additional latency attributable to the relocation of the US-based instances of
`
`the Match System from the United States to Europe would have, at most, an extremely modest
`
`effect on the ability of the Content ID system to satisfy its stated goals with respect to latency. If
`
`the increased distance added 100 milliseconds (i.e., 0.1 seconds) of latency, that would constitute
`
`
`System is relocated to Asia, South America, elsewhere in North America, or any other place with
`an adequate data center.
`
`437 See, e.g., TeleGeography and Hibernia Networks, Trans-Atlantic Network Latency Reduced
`(Oct. 9, 2015), available online at
`https://www.thebroadcastbridge.com/content/entry/3988/trans-atlantic-network-latency-reduced.
`
`438 See Konrad Depo. Tr. 138:23–1451:15.
`
`218
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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 10 of 17
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`only
` in which the Content ID system endeavors to determine
`
`whether a claim should be made.
`
`465. My opinion would not change if the instances of the Match System operating in the
`
`United States were relocated to Asia, Australia, South America, or anywhere else in the world.
`
`Even the distance-based latency between, say, the United States and Australia would be trivial
`
`compared to the time frames on which the Content ID system operates.439
`
`466. My opinion also would not change if Defendants needed to meet a more aggressive
`
`target for determining whether a recently uploaded video should be subject to one or more claims.
`
`For example, Mr. Konrad noted that
`
`”440 Even assuming that the objective was to
`
` an additional 100 milliseconds (i.e., 0.1 seconds) of distance-
`
`
`
`
`
`
`
`based latency would still constitute less than
`
` of the available time.
`
`467. Furthermore, relocating the Match System instances currently operating in the
`
`United States would decrease the latency of at least some operations performed by the Content ID
`
`system, even as it increased the latency of others. As noted, Defendants operate servers that
`
` not only in the United States and Europe, but
`
`also in Asia and South America.441 At present the data
`
`
`
`that are generated in Asia or South America are transmitted to the Match System
`
`
`439 See, e.g., Ilya Grigorik, High Performance Browser Networking, available online at
`https://hpbn.co/primer-on-latency-and-bandwidth/.
`
`440 Konrad Depo. Tr. 141:4–15.
`
`441 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`219
`
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`

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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 11 of 17
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`servers in either the United States or Europe, which creates distance-based latency.442 If the
`
`relevant instances of the Match System were relocated from the United States to Asia, for example,
`
`then there would be less distance-based latency associated with
`
`
`
` in Asia, even though there would be more distance-based
`
`latency associated with
`
` in the United States.
`
`In other words, the distance-based latency experienced by the Content ID system would increase
`
`by a trivial amount for some videos (such as those ingested and transcoded in the United States)
`
`and decrease by a trivial amount for others (such as those ingested and transcoded in Asia).
`
`468.
`
` Dr. Mitzenmacher further asserts that “transmitting data, particularly such large
`
`amounts of data, is not without cost,” and that “moving large amounts of video data from one place
`
`to another would greatly affect peak load.”443 I disagree with Dr. Mitzenmacher’s implication that
`
`access to bandwidth would inhibit Defendants from relocating the Match System instances
`
`currently operating in the United States to some other country. The increased bandwidth necessary
`
`would be trivial in light of the capacity that it available today and was available in and around
`
`2011.
`
`469.
`
`I understand from speaking with Mr. Konrad and Mr. Ryjkov that even if all
`
`would require approximately
`
` of bandwidth to
`
`, Defendants
`
`
`
`
`
`.444 That is a modest amount by the standard of networks as they exist today and
`
`
`442 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`443 Mitzenmacher Rep. ¶ 505.
`
`444 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`220
`
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`

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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 12 of 17
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`as they existed in and around 2011. For example, Dr. Mitzenmacher cites an article from 2015
`
`describing a Google-backed 9,000 km submarine fiber-optic cable connecting the United States
`
`and Japan with “a peak capacity of 60 Tbps (terabits per second),” which converts to 60,000
`
`Gbps.445 The
`
`
`
` to instances of the Match System located in a different country
`
`would equal approximately
`
` of the peak capacity of the single undersea cable discussed
`
`in the article cited by Dr. Mitzenmacher. There are several hundred submarine fiber-optic cables
`
`currently in operation, some of which have a capacity in excess of the 60 Tbps available in the
`
`Google-backed cable cited by Dr. Mitzenmacher.446
`
`470.
`
`I understand from speaking with Mr. Konrad and Mr. Ryjkov that
`
` is an
`
`immaterial amount of bandwidth in light of the amounts available to and used by Google.447 For
`
`example, in 2010 Google and other members of a consortium completed installation of a trans-
`
`Pacific fiber-optic cable delivering up to 4.8 Tbps of bandwidth.448 As of 2018, Google reportedly
`
`was the sole owner of 1.4% of submarine cables worldwide and held partial ownership of 8.5% of
`
`
`445 Mitzenmacher Rep. ¶ 505, citing Tim Hornyak, Here’s What It Takes To Lay Google’s
`9,000km Undersea Cable (July 13, 2015), available online at
`https://www.itworld.com/article/2947934/heres-what-to-takes-to-lay-googles-9000km-undersea-
`cable.html.
`
`446 TeleGeography, Submarine Cable Frequently Asked Questions, available online at
`https://www2.telegeography.com/submarine-cable-faqs-frequently-asked-questions.
`
`447 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`448 KDDI Corp., Unity Cable System Completed, Boosts Trans-Pacific Connectivity (Apr. 1,
`2010), available online at https://www.kddi.com/english/corporate/news_release/2010/0401/.
`
`221
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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 13 of 17
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`submarine cables worldwide.449 In late 2019, Google reported that it had completed installation
`
`and testing of a submarine fiber-optic cable with a bandwidth of up to 72 Tbps that connects the
`
`United States and South America.450 A trans-Atlantic cable currently being installed by Google
`
`reportedly is expected to “transmit around 250 terabits per second” when it goes online in late
`
`2020.451
`
`471.
`
` Furthermore, the current geographical placement of the servers running the Match
`
`System already requires sufficient bandwidth to transmit the data
`
`
`
` generated in Asia, South America, and elsewhere to Match System
`
`servers in either the United States or Europe.452 If the instances of the Match System currently
`
`operating in the United States were relocated to Asia, the transcontinental bandwidth necessary to
`
` from the United States to
`
`Asia or Europe would increase. At the same time, however, the bandwidth necessary to
`
`
`
` from Asia to the United States or
`
`Europe would decrease because the Match System instances would be located in Asia.
`
`
`449 Jameson Zimmer, Google Owns 63,605 Miles and 8.5% of Submarine Cables Worldwide
`(Sept. 12, 2018), available online at https://broadbandnow.com/report/google-content-providers-
`submarine-cable-ownership/.
`
`450 Jayne Stowell and Cristian Ramos, Curie Subsea Cable Set to Transmit to Chile, with a Pit
`Stop to Panama (Nov. 14, 2019), available online at
`https://cloud.google.com/blog/products/infrastructure/curie-subsea-cable-set-to-transmit-to-chile-
`with-a-pit-stop-to-panama.
`
`451 Klint Finley, How Google Is Cramming More Data Into Its New Atlantic Cable (Apr. 5,
`2019), available online at https://www.wired.com/story/google-cramming-more-data-new-
`atlantic-cable/.
`
`452 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020
`
`222
`
`
`

`

`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 14 of 17
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`472. Any increase in bandwidth caused by relocating instances of the Match System
`
`outside of the United States would be trivial in relation to the total bandwidth readily available to
`
`Google. My opinion with respect to this issue would not change even if Defendants required more
`
`than
`
` of additional bandwidth to operate the Content ID System with all instances of the
`
`Match System located outside the United States.
`
`473. The Mitzenmacher Report also notes that matches generated by the Match System
`
`and
`
` are used for purposes other than applying copyright
`
`owners’ policies to user-uploaded videos. Dr. Mitzenmacher asserts:453
`
`
`
`474. Relocating the Match System to servers located outside the United States would
`
`not affect any of these other use cases. I understand from speaking with Mr. Konrad and Mr.
`
`Ryjkov that these other use cases currently have latencies
`
`
`
`454 For example, although Defendants use matches
`
`determined by the Match System
`
` that process does not need to happen before the matches
`
`
`
`
`
` Thus, increasing
`
`
`453 Mitzenmacher Rep. ¶ 505.
`
`454 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`223
`
`
`

`

`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 15 of 17
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`distance-based latency of the Content ID system by relocating the US-based instances of the Match
`
`System would have no perceptible effect on these other use cases, just as it would have no
`
`perceptible effect on the partner-copyright use case that is the focus of Dr. Mitzenmacher’s
`
`analysis.
`
`475. Finally, for the reasons already discussed, any additional latency or bandwidth
`
`requirements arising from relocating the Match System would not affect the application of Content
`
`ID
`
` As Dr. Mitzenmacher notes elsewhere in his report, the Match
`
`System component of the Content ID system
`
`
`
`456
`
`476.
`
`Increasing the distance between the server where
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`where the Match System is located could increase the distance-based latency associated
`
`with this process, but again the distance-based latency would be immaterial compared to the
`
`latency that is already built into the Match System and the objectives articulated by Defendants.
`
`Ms. Pasula explained in response to questions from Network-1’s counsel that
`
`
`
`
`455 See, e.g., Mitzenmacher Rep. ¶ 68.
`
`456 Pasula Depo. Tr. 172:12–174:7.
`
`224
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`
`

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`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 16 of 17
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`
`
`
`457
`
`…
`
`477. As discussed above, the increased latency attributable to transmitting data,
`
`
`
` from one continent to another is on the order of milliseconds (i.e.,
`
`
`
`
`
`
`
`
`
`
`
`thousandths of a second).458 Furthermore, I understand that Defendants’
`
`
`
`
`457 Pasula Depo. Tr. 86:2–87:16.
`
`458 See, e.g., Ilya Grigorik, High Performance Browser Networking, available online at
`https://hpbn.co/primer-on-latency-and-bandwidth/.
`
`459 Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`225
`
`
`

`

`Case 1:14-cv-02396-PGG-SN Document 269-2 Filed 09/07/22 Page 17 of 17
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`
`478.
`
`Finally, distance-based latency is already built into
`
`
`
`
`
`regardless where the uploader and viewer are located. For the reasons already discussed, the data
`
`
`
`
`
`^^' The distance-based latency of some or all of those match operations would decrease
`
`slightly (i.e., on the order of milliseconds) if the instances of the Match System currently located
`
`in the United States were relocated
`
` The fact that
`
`Defendants currently run the Match System from only two geographical locations even though
`
`YouTube uploaders and viewers are located throughout the world demonstrates that the effects of
`
`distance are not an impediment to achieving the system’s objectives.
`
`479.
`
`In sum, there are no technical barriers to relocating the US-based instances of the
`
`Match System component of the Content ID system to a cormtry other than the United States.
`
`Dated: February n _, 2020
`ii
`
`Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020; Pasula Depo. Tr.
`172:12-174:7.
`
`Interview with Matthias Konrad & Oleg Ryjkov, February 10, 2020.
`
`226
`
`

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