Appeal No. 96-1246 Applicaton No. 08/205,812 DECISION ON APPEAL This is a decision on appeal from the final rejection of claims 1, 2, 12 through 15 and 17 through 20. Claims 3 through 11 and 16 have been canceled. The invention relates to digitally filtering stereo data to increase the quality of the audio information in an efficient manner. Independent claim 1 is reproduced as follows: 1. An apparatus for recursively filtering in parallel digital audio information, comprising: (a) means for receiving digital audio information, having a first set of digital signals for a first channel and a second set of digital signals for a second channel; (b) means for receiving filter coefficients; (c) means for recursively filtering the audio information connected to said means for receiving digital audio information and said means for receiving filter coefficients, said means for recursively filtering including means for mathematically applying said coefficients to said first and second sets of digital signals in parallel with said means for receiving filter coefficients; and (d) means for storing the filtered audio information. The references relied on by the Examiner are as follows: Sakamoto et al. (Sakamoto) 4,507,728 Mar. 26, 1985 2Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NextLast modified: November 3, 2007