Appeal No. 95-4167
Application 07/934,316
Claim 8 reads as follows:
8. A video tape playback mode decision circuit in a
video apparatus for playing back a video signal recorded on a
video tape in a standard play mode in which said video tape is
fed at a standard speed and in any other play mode in which said
video tape is fed at a different speed, wherein on receiving a
control signal read from said video tape and receiving an output
signal synchronized with the feed speed of said video tape from a
capstan frequency generator, said decision circuit generates a
mode signal for setting one of said play modes in response to
these signals, said decision circuit comprising:
a tape feed suspension detection circuit for outputting
a tape suspension detection signal representing a stationary
condition of said video tape on receiving said output signal, and
a mode signal output circuit for generating said mode
signal for setting said standard play mode when said tape
suspension detection signal is absent for a predetermined period
of time and when said control signal is also absent.
The Examiner’s Answer cites admitted prior art and the
following prior art reference:
Narita 4,553,182 Nov. 12, 1985
Claim 8 stands rejected under 35 U.S.C. § 103 as
unpatentable over admitted prior art in view of Narita.
OPINION
Claim 8 is directed to a video tape playback mode
decision circuit for setting the playback mode to a standard
playback speed or to a different playback speed. The claimed
playback mode decision circuit includes a tape feed suspension
detection circuit.
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