Appeal No. 1998-2749
Application 08/637,062
data frames from the buffer memory. The rejection of claim 21 is
reversed.
Claims 22-24
The Examiner finds that Hausman does not explicitly teach a
timer, but finds that the abstract of Gunji teaches data reception
and transmission are performed through a DMA if the digital signal
processor cannot process data fast enough to prevent data loss
(Paper No. 2, p. 7). The Examiner concludes (Paper No. 2, p. 7):
"It would have been obvious . . . to combine the teachings of
Gunji and Hausman to use DMA data transfer mode when data frames
are not being processed by a predetermined period because it would
prevent data being lost."
Appellant argues that "neither Hausman et al. nor Gunji talk
about initiating data transfer in response to expiration of 'a
predetermined period of time'" (Br10).
Appellant's argument refers to the limitations of claim 24,
not parent claims 22 and 23. Since the limitations of claims 22
and 23 are not argued, we sustain the rejection of claims 22 and
23 pro forma. As to claim 24, Gunji discloses enabling a DMA
transfer mode when the signal processing period (Tcal) of the
digital signal processor (DSP) 2 is greater than the I/O period
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