Signal processing apparatus having first and second registers en

Details Signal processing apparatus having first and second registers en Signal processing apparatus having first and second registers en

1992-10-09

1994-05-17

Lee, Thomas C.

Coded data generation or conversion

Digital code to digital code converters

Tree structure

395725, 395375, 341126, 3642302, 3642329, 364DIG1, G06F 946

Patent

active

053136489

ABSTRACT:
A signal processing apparatus includes an electronic processor responsive to a context signal and operable in alternative processing contexts identified by the context signal. First and second registers are connected to the electronic processor to participate in one processing context while retaining information from another processing context until a return thereto. A context switching circuit is connected to the first and second registers and operates to selectively control input and output operations of the registers to and from the electronic processor depending on the processing context. Other devices, systems and methods are also disclosed.

REFERENCES:
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patent: 4730248 (1988-03-01), Watanabe et al.
patent: 4800491 (1989-01-01), Hardy
patent: 4835738 (1989-05-01), Niehaus et al.
patent: 4972312 (1990-11-01), Den Boef
patent: 5021993 (1991-06-01), Matoba et al.
patent: 5036458 (1991-07-01), Matsushima et al.

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