Boots – shoes – and leggings
Patent
1994-12-20
1996-10-29
Mai, Tan V.
Boots, shoes, and leggings
G06F 1531
Patent
active
055703089
ABSTRACT:
A method of processing input digital audio signals of different sampling rates, includes steps of: providing a digital filter circuit having a random access memory (RAM) for storing input digital audio signals of different sampling rates for each of channels, a read only memory (ROM) for storing groups of digital filter coefficients, and an accumulator for executing multiplications and additions based on the input digital audio signals and the digital filter coefficients; reading the input digital audio signals of each sampling rate from the RAM; reading the digital filter coefficients of each group from the ROM; sequentially allocating one of divided time portions of one cycle of a unified sampling rate to the digital filter circuit, so that the accumulator executes the multiplications and additions for each channel during the allocated time portion so as to produce processed digital audio signals for all the channels within the one cycle; and outputting the processed digital audio signals for each of the channels at the unified sampling rate.
REFERENCES:
patent: 5023825 (1991-06-01), Luthra et al.
patent: 5317529 (1994-05-01), Teraoka et al.
patent: 5365468 (1994-11-01), Kakubo et al.
patent: 5398029 (1995-03-01), Toyama et al.
patent: 5432511 (1995-07-01), Sadjadian et al.
Mai Tan V.
Ricoh & Company, Ltd.
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