Telecommunications – Receiver or analog modulated signal frequency converter – With particular receiver circuit
Patent
1994-12-07
1997-02-25
Pham, Chi H.
Telecommunications
Receiver or analog modulated signal frequency converter
With particular receiver circuit
455 383, 34082544, 370514, 375368, H04B 116, H04J 306
Patent
active
056067429
ABSTRACT:
In a selectively called radio receiver operable in a battery saving method in which frame synchronism is established after establishment of bit synchronism and in which a bit rate detection signal is produced by detecting a bit rate of an arriving radio signal to establish the frame synchronism before lapse of a frame synchronism establishing interval after establishment of the bit synchronism or restoration of bit synchronism subjected to a failure, repeated production of the bit rate detection signal at a regular interval is monitored by determining for the regular interval a unit time interval shorter than a frame period of the radio signal. Preferably, the unit time interval is equal to a four-codeword length of codewords, such as the frame period, when sixteen is the number of codewords in a typical frame.
REFERENCES:
patent: 5487090 (1996-01-01), Ide
NEC Corporation
Pham Chi H.
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