Appeal No. 96-3211
Application 07/928,717
A. The nature of the case
1. This is an appeal from the final rejection of claims 1-
10 and 12-20. (Paper 28.) Claim 11 has been canceled and no
other claims are pending. (Paper 24 at 1.)
2. The subject matter of the invention is an automatic
switching circuit for an image recording system that switches
from an intermittent recording mode to a continuous recording
mode upon detection of motion. (Paper 1 at 1.)
3. Claim 10 defines the subject matter of the invention as
follows:
A method of automatically switching recording
modes of a recording device, comprising:
converting optical information representing
objects into an electrical image signal;
separating said electrical image signal into a
composite image signal and a luminance signal;
separating said luminance signal into a current
luminance signal and a previous luminance signal and
generating a difference signal representing differences
between said previous luminance signal and said current
luminance signal indicative of movement exhibited by
the objects;
detecting said movement by comparing said
difference signal to a reference value;
recording said composite image signal
intermittently at a predetermined rate in the absence
of detection of said movement; and
recording said composite image signal continuously
in response to said detection of said movement.
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