Reexamination Control No. 90/005,742
Patent 5,253,341
1 sends instructions to the presentation system over an existing wire or fiber optic telephone
2 network 12. Id. at col. 3, ll. 26-32. The presentation system responds by encoding the video
3 frames of the requested presentation with the address of the user and sending the presentation to
4 the user over one or more channels of a CATV network. Id. at col. 3, ll. 45-59. The user
5 terminal searches the frames transmitted over that channel or channels for those which are
6 encoded with its particular address, and stores each such frame, one at a time, in a frame store,
7 with the stored frame being continually retransmitted from the terminal 14 to the viewer's
8 television receiver 36 for display as a still frame. Id. at col. 4, ll. 17-23.
9 Steps (a) to (d) of claim 93 clearly read on the foregoing disclosures in Pocock. The
10 examiner reads step (e), which requires that the displaying step commence before said step of
11 receiving said compressed or non-compressed response has been completed, on the following
12 sentence in Pocock (col. 4, ll. 23-25): "When the next frame in a desired presentation reaches the
13 user terminal, it replaces the preceding frame in the frame store and is then displayed."
14 3d Action at 96, para. 35. Dr. Koopman argues that the claim language is not satisfied, because
15 each video frame, upon which he reads the claimed "response," is written into the frame store in
16 its entirety before read-out begins. 2d Koopman Decl. at 186, para. 403. The examiner, correctly
17 in our view, explains that the claimed "response" can be read on Pocock's "presentation," which
18 consists of a plurality of video frames, and that display of the presentation begins before the last
19
20 frame of the presentation has been stored at the user terminal. Answer at 206, para. 403. We are
21 therefore affirming the rejection of claim 93 for anticipation by Pocock.
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