Appeal No. 1998-2933
Application 08/439,082
operation. That is, even if a start bit were added preceding
the data information in the APA in view of Suman, the APA
would still use the electric field detector to detect the
transmission, not the start bit, absent some suggestion in
Suman or the knowledge in the art to modify the APA to
identify the idling information to detect a transmission.
Thus, we conclude that the combination of the APA and Suman
does not suggest the limitation that "said control unit
detects a transmission of said remote control signal from said
portable transmitter by identifying the idling information"
(emphasis added).
Claim 1 also requires "a plurality of digital bits." The
Examiner states that "[o]ne of ordinary skill in the art would
have readily recognized [the obviousness of] using a plurality
of bits instead of only one start bit as in Suman because if a
plurality of bits are used the detection of the activation of
the system would be ensured" (FR3).
Appellant argues that it would not have been obvious to
modify the start bit of Suman to include a plurality of start
bits. It is argued that the system of Suman is always active,
so there is no need to increase the number of start bits to
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