Digital selective calling receiver having a selectively attachab

Details Digital selective calling receiver having a selectively attachab Digital selective calling receiver having a selectively attachab

1988-01-04

1989-08-22

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

340825470, 340825200, 340825520, H04Q 700, G08B 522

Patent

active

048600040

ABSTRACT:
A digital selective call receiver is modified to enhance the address decoding capability by providing access to received data, bit and frame synchronization signals, and a detect input terminal of an annunciator. A selectively attachable additional independent address decoding device including additional memory and an independent address decoder operating in parallel with the decoder in the selective call receiver is attached to the receiver for accessing the various signals and providing a detect signal to the annunicator when an additional independent address is decoded.

REFERENCES:
patent: 3815092 (1974-06-01), Stephenson
patent: 4177426 (1979-12-01), Gaishin et al.
patent: 4509210 (1985-04-01), Kohn
patent: 4518961 (1985-05-01), Davis et al.
patent: 4680787 (1987-07-01), Marry

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