DECISION ON APPEAL
This is a decision on the appeal under 35 U.S.C.
§ 134 from the examiner’s rejection of claims 1-8, which
constitute all the claims in the application.
The disclosed invention pertains to a recordable
optical disc suitable for recording signals according to the
Compact Disc Video (CDV) format. The specification notes that
the normal recording of CDV signals on a Recordable Compact
Disc (CD-R) permits the wobble frequency in the video
recording area to interfere with the frequency band of an EFM
modulated digital signal. The invention eliminates this
problem by placing guide grooves in the audio and video
recording areas which have a wobble frequency which will not
interfere with a frequency band of an EFM signal.
Representative claim 1 is reproduced as follows:
1. A recordable optical disc on which information is
recorded by applying a light beam on the surface thereof,
comprising:
a first recording area on which information is recorded
and reproduced while the disc is rotated at a first linear
velocity; and
2
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Last modified: November 3, 2007