Selective calling receiver

Details Selective calling receiver Selective calling receiver

1997-05-02

1998-03-10

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082544, 34082547, 395430, 395575, 364200, G06F 1300, G06F 1200, H04B 700, G08B 310

Patent

active

057266417

ABSTRACT:
A selective calling receiver operated by causing a processor to execute a prestored program includes a non-writable mask ROM prestoring the program, a patch register for storing a patch address, a programmable patch memory for storing a patch program, a comparator for detecting a coincidence between a value of the patch register and an instruction code fetch address, and a patch control circuit for controlling the microprocessor so as to execute the patch program in the patch memory.

REFERENCES:
patent: 4141068 (1979-02-01), Mager et al.
patent: 4839628 (1989-06-01), Davis et al.
patent: 5043718 (1991-08-01), Shimura
patent: 5247519 (1993-09-01), Snowden et al.
patent: 5390324 (1995-02-01), Burckhartt et al.
patent: 5564030 (1996-10-01), Whitted, III et al.

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