Appeal No. 96-3388 Page 2
Application No. 08/036,857
BACKGROUND
The invention at issue in this appeal relates to cleaning
the optical pickup lens of a double-sided disk player.
Conventionally a double-sided disk player includes an optical
pickup assembly that is vertically movable to access the upper
and lower sides of a disk being played. This permits a single
pickup assembly to record or reproduce signals from opposite
sides of the disk. The pickup assembly requires periodic
cleaning to remove foreign particles from its lens.
The invention eliminates the need for a separate lens
cleaning process. It automatically cleans the lens when the
lens is moved from one side of the disk to the other. More
specifically, the lens is cleaned continuously by a brush
while the pickup assembly is being moved.
Claim 8, which is representative for our purposes,
follows:
8. An optical pickup lens cleaning device for a
double-sided disk player for recording desired
signals on each side of the double-sided disk or
reproducing desired signals from each side of the
double-sided disk, the disk player including first
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