Appeal No. 1999-0016
Application 08/638,071
USPQ2d 1523, 1529 (Fed. Cir. 1998).
We note that all the independent claims recite “quantizer
implemented using analog devices.” Turning to Appellant’s
specification, we find that the Appellant discloses throughout
the specification that the quantization module shown in figure
2a is implemented entirely with analog devices. Appellant has
pointed out the advantages of using the analog devices to
implement this function. In particular, Appellant points out
on pages 7 and 8 that the analog circuits are simpler than the
digital circuits and can provide some amount of
syhchronization. Therefore, we find that Appellant is
claiming a quantizer coupled to the transformer for quantizing
the transformation coefficients using analog devices to
generate quantizer coefficients.
Turning to the prior art recited by the Examiner, we find
that Chiang and Merola disclose digital circuits for providing
these functions. We fail to find that either Chiang or Merola
teaches or would have suggested using analog devices to
provide a quantizer for quantizing the transformation
6
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007