Pulse or digital communications – Systems using alternating or pulsating current
Reexamination Certificate
2005-09-20
2005-09-20
Corrielus, Jean B. (Department: 2637)
Pulse or digital communications
Systems using alternating or pulsating current
C375S140000, C375S343000, C375S367000, C370S514000
Reexamination Certificate
active
06947489
ABSTRACT:
Burst transmissions in a burst-type communication system include a preamble synchronization sequence which allows detection and synchronization a burst transmission while at the same time providing information to a receiver, for example, on the subsequent burst payload data. Each burst transmission includes a preamble synchronization sequence which is one of a plurality of predetermined allowed preamble sequences in the system, according to the information desired to be transmitted. The system may also use differential encoding and decoding to eliminate the effects of frequency uncertainty. In that case, the allowed preamble sequences may be such that, after differential decoding, they differ from one another only by a polarity inversion such that a single matched filter may be used to detect two preamble sequences.
REFERENCES:
patent: 3730998 (1973-05-01), Schmidt et al.
patent: 3778715 (1973-12-01), Schmidt et al.
patent: 3806879 (1974-04-01), Schmidt et al.
patent: 3812430 (1974-05-01), Schmidt et al.
patent: 3816666 (1974-06-01), Tomozawa et al.
patent: 3818453 (1974-06-01), Schmidt et al.
patent: 3838221 (1974-09-01), Schmidt et al.
patent: 4169286 (1979-09-01), Uzunoglu et al.
patent: 4697277 (1987-09-01), Van Rassel
patent: 4745408 (1988-05-01), Nagata et al.
patent: 5025455 (1991-06-01), Nguyen
patent: 5195108 (1993-03-01), Baum et al.
patent: 5428647 (1995-06-01), Rasky et al.
patent: 5550833 (1996-08-01), Fujisawa
patent: 5598429 (1997-01-01), Marshall
patent: 5668431 (1997-09-01), Saw et al.
patent: 6282232 (2001-08-01), Fleming et al.
patent: 27 56 923 (1979-07-01), None
patent: 0 257 110 (1988-03-01), None
patent: WO 87/01490 (1997-03-01), None
Banner & Witcoff , Ltd.
Corrielus Jean B.
Gilat Satellite Networks Ltd.
LandOfFree
Combined preamble detection and information transmission... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Combined preamble detection and information transmission..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combined preamble detection and information transmission... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3421739