Reexamination Control No. 90/005,742
Patent 5,253,341
1 The rejection of claim 103 ("mobile") for obviousness over Baji in view of Dr.
2 Koopman's testimony is affirmed for the reasons given above in the discussion of the rejection of
3 this claim over Walter in view of that testimony.
4 T. The rejections based on Cohen
5 (1) Claims 93, 94, 96, and 97 – obvious over Cohen in view of Sugiyama?
6 Cohen, after explaining that "real time viewing via cable and broadcast networks, as well
7 as viewing of cassette recording have serious drawbacks," col. 1, ll. 16-18, discloses a video
8 communications system that makes it possible for home viewers to download a movie in digital
9 format from a large archive library, store the digital movie file locally, and view the movie at any
10 convenient time. Id. at col. 1, ll. 39-42. Figure 4 shows the central source of video and audio
11 data; Figures 1-3 show a user terminal. Referring to Figure 2, the keypad 102 (corresponding to
12 the recited "data input means" and "input/output means") is used to identify the movie to be
13 downloaded. The central processing unit 104 (the recited "remote query and data retrieval
14 means") is responsive to this information and uses modem 110 to digitally transmit the
15 identifying information (the claimed “query”) over telephone line 112. Id. at col. 4, ll. 50-63.
16 The requested digital data file (the claimed "compressed or non-compressed response")
17 representing the requested movie is received over phone line 112 and modem 110 from the
18 central location and stored in disk storage system 114. Id. at col. 4, ll. 64-67. When the file is
19 fully downloaded, the display 118 so indicates and the telephone link is broken, id. at col. 5, ll.
20 2-4, after which the user can cause the movie to be played back and converted to a composite
21 video signal on line 124 for display on a display device (not shown). Id. at col. 5, ll. 5-17. Thus,
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