Appeal No. 96-1346
Application 08/122,611
reads as follows:
1. A constant angular velocity type optical disk comprising:
recording tracks;
a data information area for recording data information and a servo control information area for
recording servo control information in the recording tracks;
pairs of wobble pits for tracking servo control, the wobble pits of each pair being adjacently
arranged along one recording track in the servo control information area and provided in a staggered
form in a radial direction of the optical disk with a center axis of said one recording track being
disposed between the wobble pits of said each pair, wherein a pair of wobble pits is free of information
therebetween; and
a track discrimination pit disposed in each said servo control information area and capable of
discriminating between odd and even tracks;
wherein each wobble pit between two adjacent recording tracks is shared by both adjacent
recording tracks as a wobble pit on an outer circumferential side of one of the adjacent recording
tracks and as a wobble pit on an inner circumferential side of the other of the adjacent recording tracks
which is situated at an outer circumferential side of said one of the adjacent recording tracks.
The references relied upon by the examiner as evidence of obviousness are:
Sugiyama et al. (Sugiyama) 4,980,877 Dec. 25, 1990
Verboom 5,270,991 Dec. 14, 1993
(Filed June 29, 1990)
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