Selective call receiver with battery saving features and method

Details Selective call receiver with battery saving features and method Selective call receiver with battery saving features and method

1994-07-05

1996-03-05

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

34082521, 455 383, G08B 522, H04L 700, H04B 700

Patent

active

054971454

ABSTRACT:
A method for battery saving in a selective call receiver (20) that comprises a baud rate detector (210) and a receiver circuit (202) for receiving and demodulating a selective call signal. The selective call signal comprises a preamble (102) and a plurality of data batches. Each of the plurality of data batches further comprises a synchronization codeword (104) and a plurality of assigned data frames (106). The method (30) begins when a predetermined baud rate is detected in each of the plurality of assigned data frames (106) in one of the plurality of data batches. Upon detecting the predetermined baud rate, the selective call receiver (20) inactivates the receiver circuit (202) for the duration of the synchronization codeword (104) in a subsequent one of the plurality of data batches. Otherwise, the receiver circuit (202) remains activated during the synchronization codeword (104) of the subsequent one of the plurality of data batches.

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