Method, apparatus, and computer instruction for enabling gain co

Details Method, apparatus, and computer instruction for enabling gain co Method, apparatus, and computer instruction for enabling gain co

1996-03-21

1999-09-21

Pan, Daniel H.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

395376, 395386, 395389, 395562, 395563, 395567, 395571, 395581, 381104, 364715011, 36471507, G06F 930, G06F 9355

Patent

active

059564946

ABSTRACT:
A digital signal processor (10) for implementing a gain instruction. The gain instruction, when decoded, controls a multiplexer (43) to select a gain control index signal. The value of the chosen gain control index signal is added to a program control register (48) to produce a program address. The program address is used to choose one of four gain values specified by the gain instruction. The gain value is multiplied by a value accessed through an address indirect register, also specified by the instruction, and the result is stored in an accumulator.

REFERENCES:
patent: 3812470 (1974-05-01), Murta et al.
patent: 3823273 (1974-07-01), Beeman et al.
patent: 3939417 (1976-02-01), Cannalte et al.
patent: 4419726 (1983-12-01), Weidner
patent: 4747065 (1988-05-01), West
patent: 5652910 (1997-07-01), Boutaud et al.
patent: 5696959 (1997-12-01), Guttag et al.

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