Appeal No. 2003-0699 Page 6
Application No. 09/169,724
1531 (Fed. Cir. 1993) (quoting In re Rinehart, 531 F.2d 1048, 1051, 189 USPQ 143,
147 (CCPA 1976)).
Here, Lane discloses a "[d]igital video tape recorder ('VTR') and servo circuit for
supporting the display of images during trick play1 VTR operation." Abs., ll. 1-2.
Figure 8(a) of the reference "illustrate[s] a block diagram of a video and audio
transmission circuit, according to one embodiment of the present invention, generally
indicated by the reference numeral 100. The circuit 100 comprises a video
encoder 102, an audio encoder 103, a prioritizer 104, a transport encoder 109, a
channel modulator 110 and a transmitter/antenna 112." Col. 19, ll. 49-55. Although the
prioritizer assigns a priority to components of a video signal, we are unpersuaded that
the priority specifies the chronological order in which the components are to be
transmitted. To the contrary, "[t]he prioritizer 104 . . . implements a prioritization
scheme that is based on the video data's utility to VTR applications such as trick play
operation. Thus, video data utility is determined as a function of how useful the data is
for generating a recognizable and scaleable image which is useable during trick play
operation." Col. 20, ll. 46-52.
1"During modes of operation such as playback during reverse or fast forward,
referred to as trick play modes, the tape velocity is different than the tape velocity
during standard record/playback mode." Lane, col. 2, ll. 46-48.
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