In Re GOOGLE TECHNOLOGY HOLDINGS LLC

Court of Appeals for the Federal Circuit·Decided November 13, 2020·No. 19-1828·Published

Opinion

United States Court of Appeals for the Federal Circuit

IN RE: GOOGLE TECHNOLOGY HOLDINGS LLC, Appellant

2019-1828

Appeal from the United States Patent and Trademark Office, Patent Trial and Appeal Board in No. 15/179,765.

Decided: November 13, 2020

KATHRYN SCHLECKSER KAYALI, Williams & Connolly LLP, Washington, DC, argued for appellant. Also represented by ANDREW V. TRASK; TIMUR ENGIN, Google Inc., Mountain View, CA.

DANIEL KAZHDAN, Office of the Solicitor, United States Patent and Trademark Office, Alexandria, VA, argued for appellee Andrei Iancu. Also represented by MICHAEL S. FORMAN, THOMAS W. KRAUSE, FARHEENA YASMEEN RASHEED.

Before TARANTO, CHEN, and STOLL, Circuit Judges. CHEN, Circuit Judge.

Google Technology Holdings LLC (Google) appeals the decision of the Patent Trial and Appeal Board (Board) sustaining the examiner’s final rejection of claims 1–9, 11, 2 IN RE: GOOGLE TECHNOLOGY HOLDINGS LLC

14–17, 19, and 20 of U.S. Patent Application No. 15/179,765 (’765 application) under pre-AIA 35 U.S.C. § 103. 1 Because we conclude that Google has forfeited its arguments put forth on appeal, we affirm.

BACKGROUND

The ’765 application relates to “distributed caching for video-on-demand systems, and in particular to a method and apparatus for transferring content within such video- on-demand systems.” J.A. 51. The application describes a three-level system that includes (i) a complete content library stored at a remote, master server referred to as a video server office (VSO), (ii) several smaller, partial-content libraries at local servers referred to as video home offices (VHOs), and (iii) individual users at set-top boxes (STBs). See id. at 44–45, 51–53. Different VHOs will store at least some different content so that when a particular VHO local to an STB lacks certain requested content, the system may stream that requested content from either a different VHO or the VSO. See id. at 54. The proposed invention presents a solution for determining how to stream content to STBs and where to store said content among the content servers, be it at one or more of the VHOs or at the VSO. See id. at 54–55.

Claim 1 describes a method of responding to requests to stream content to STBs from various content servers, i.e., VHOs and the VSO, based on the relative costs of the network impact of fetching the content from the various servers, which have the requested content. Claim 2 depends from claim 1 and further describes determining at which particular server/s to store the content depending on “a network penalty.”

1 All references to § 103 throughout the opinion refer to the pre-AIA version because the application’s priority date is before March 16, 2013.

IN RE: GOOGLE TECHNOLOGY HOLDINGS LLC 3

Claims 1 and 2 of the ’765 application are representative . They recite in relevant part:

1. A method comprising: receiving, by a processing apparatus at a first content source, a request for content; in response to receiving the request, determining that the content is not available from the first content source; in response to determining that the content is not available from the first content source, determining that a second content source cost associated with retrieving the content from a second content source is less than a third content source cost associated with retrieving the content from a third content source, wherein the second content source cost is determined based on a network impact to fetch the content from the second content source to the first content source, . . . 2. The method of claim 1, further comprising: determining that there is not sufficient memory to cache the content at the first content source; and selecting one or more items to evict from a cache at the first content source to make available sufficient memory for the content, wherein the selection of the items to evict minimizes a network penalty associated with the eviction of the items, wherein the network penalty is based on sizes of the content and the items, and numbers of requests expected to be received for the content and the items.

’765 application at claims 1 and 2 (emphases added).

4 IN RE: GOOGLE TECHNOLOGY HOLDINGS LLC

The examiner rejected the claims under § 103. 2 J.A.

115, 155. The examiner determined that claim 1 would have been obvious in view of Costa 3 and Scholl 4 and claim 2 would have been obvious in view of Costa, Scholl, Allegrezza 5, and Ryu. 6 J.A. 157, 161. The examiner found that Costa discloses all limitations of claim 1 except one, and Scholl discloses this remaining limitation, i.e., determination of the content route. J.A. 158, 195. The examiner also explained that Allegrezza and Ryu disclose the additional limitations in claim 2, because Allegrezza teaches caching content and minimizing a network penalty based on the number of requests expected to be received for the content and the items and Ryu teaches minimizing a network penalty based on the size of the content and the items. J.A. 162.

Google appealed this final rejection to the Board. As to claim 1, Google contended that “the cited references do not teach or suggest [most of the claim limitations].” J.A. 206 (referencing almost the entire third and fourth paragraphs of claim 1). Largely quoting the claim language and references , Google suggested that Costa teaches only “randomly distributing a first set of videos for storage, distributing a second set of videos to all of the central offices for storage locally, and distributing a third set of videos to a particular central office based on at least one demographic of viewers ,” id. at 208, and Scholl teaches only a “determination according to some rules,” id. at 210 (internal quotation marks omitted). Google similarly averred that the cited

2 The claims were also initially rejected for double patenting, but that rejection was resolved with Google’s filing of a terminal disclaimer. See J.A. 156.

3 U.S. Patent Application Publication 2004/0143850. 4 U.S. Patent No. 8,023,319. 5 U.S. Patent Application Publication 2004/0103437. 6 U.S. Patent No. 8,087,056.

IN RE: GOOGLE TECHNOLOGY HOLDINGS LLC 5

references did not teach the limitations of claim 2. Id. at 211. Again, relying on block quotes from the claim language and the references, Google asserted that Allegrezza merely teaches the storage of a content file through comparison to a demand threshold, id. at 212, and Ryu “merely mentions classifying stored content into high-capacity and low-capacity content,” id. at 213.

The Board affirmed the examiner’s obviousness rejections . The Board interpreted Google’s arguments for claim 1 as suggesting that Costa and Scholl do not teach “distributing content based on ‘costs’ which are ‘based on a network impact.’” J.A. 7 (quoting claim 1). The Board was unpersuaded, finding the examiner’s broad reading of “costs,” as disclosed by Costa and Scholl, to be entirely consistent with the application’s specification. Id. at 8–10. Utilizing the broadest reasonable interpretation standard, the Board explained that “costs” “based on a network impact ” encompassed costs “in terms of load, storage space, time/latency, predicted traffic (i.e., amount of data transmitted over time), or monetary costs.” Id. at 10 (citing the application’s written description). The Board, agreeing with the examiner, then found that Costa teaches costs based on “redundancy, distance, or congestion,” and Scholl teaches “costs based on proximity, time, and/or number of nodes,” id. at 9, and therefore, the “combination of Costa and Scholl teaches or suggests the method of distributed content management and fetching recited in claim 1,” id. Of note, the Board explained that “[Google] ha[d] not cited to a definition of ‘costs’ or ‘network impact’ in the [s]pecification that would preclude the [e]xaminer’s broader reading .” Id. at 10.

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