Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1980-02-04
1982-03-16
Ng, Jin F.
Pulse or digital communications
Spread spectrum
Direct sequence
455307, H04B 110
Patent
active
043205232
ABSTRACT:
The error rate performance of a digital radio system which is deteriorated due to inband interference components can be effectively improved by adopting the present digital signal reception technique. According to the present invention, a narrow band band-elimination filter removes the interference, and after the digital signal is regenerated, the spectrum, which is removed by said band-elimination filter, is recovered from the regenerated digital signal. The recovered digital signal is added to the original one, and is applied to the regenerator. Thus, even though an interference component interfers with the digital signal in the same pass-band, said interference component is removed by the present invention and one can obtain the digital signal without the interference component.
REFERENCES:
patent: 3737799 (1973-06-01), Stander
patent: 3902014 (1975-08-01), Lindell
patent: 3932818 (1976-01-01), Masak
patent: 4085368 (1978-04-01), Yeh
patent: 4123625 (1978-10-01), Chow
patent: 4130806 (1978-12-01), Van Gerwen
Equalization Design for a 600 MBD Quantized Feedback PCM Repeater, by B. Gibson, IEEE Transactions on Communications, vol. COM-27, No. 1, Jan. 1979, pp. 134-141.
Horikawa Izumi
Shinji Masaaki
Chin Tommy P.
Ng Jin F.
Nippon Telegraph & Telephone Public Corporation
Novack Martin
LandOfFree
Digital signal reception system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital signal reception system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital signal reception system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1645368