Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1992-04-10
1994-07-12
Chin, Stephen
Pulse or digital communications
Spread spectrum
Direct sequence
375106, 3701051, 3701054, H04L 0700
Patent
active
053295587
ABSTRACT:
A method of synchronizing a baseband demodulator in a radio receiver, which may be stationary or mobile. The demodulator is a phase-shift demodulator and detects a baseband signal incoming from a sampling A/D-converter in the receiver. The baseband signal is transmitted from a radio transmitter in the form of bursts, in time slots in accordance with the TDMA-principle. One time slot, in addition to the data word, also includes in a known manner a synchronization part which has a given, fixed bit pattern. Prior to demodulation in the baseband demodulator, differential correlation of the received baseband signal is effected with the known synchronization pattern, wherein a time-dependent correlation function is obtained. The absolute magnitude of the maximum value is calculated and the corresponding time position for this maximum value is detected, which denotes the time position of the synchronization part of the received baseband signal.
REFERENCES:
patent: 4112498 (1978-09-01), Reiner et al.
patent: 4472802 (1984-09-01), Pin et al.
patent: 5195108 (1993-03-01), Baum et al.
patent: 5212690 (1993-05-01), Low
Larsson Lars G.
Raith Alex K.
Ugland Jon K.
Chin Stephen
Ghebretinsae T.
Telefonaktiebolaget L M Ericsson
LandOfFree
Method of synchronizing a radio receiver with an incoming radio does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of synchronizing a radio receiver with an incoming radio , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of synchronizing a radio receiver with an incoming radio will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-402752