Pulse or digital communications – Repeaters – Testing
Patent
1995-09-12
1998-12-15
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
375208, H04B 1707
Patent
active
058504141
ABSTRACT:
A spread spectrum communication receiver includes an inverse spread demodulation circuit and a primary demodulation circuit. The inverse spread demodulation circuit has an image PN code generation circuit for generating an image PN code having an image relationship with a PN code which was used in spread modulation of a spread spectrum signal to be received and demodulated, an SS reference signal generation circuit for generating a spread spectrum reference signal having an image relationship with the spread spectrum signal to be demodulated using the image PN code, and a surface acoustic wave device for taking a correlation between the received spread spectrum signal and the spread spectrum reference signal. The primary demodulation circuit has a detection circuit for generating a convolution output by detecting the correlation output from said inverse spread demodulation circuit, and a waveform shaping circuit for shaping the convolution output. The receiver further includes a synchronization circuit for synchronizing a repetition period of the image PN code with the convolution output.
REFERENCES:
patent: 5038362 (1991-08-01), Takeuchi et al.
patent: 5038363 (1991-08-01), Mitsutsuka
patent: 5208830 (1993-05-01), Cornec et al.
patent: 5278864 (1994-01-01), Mori et al.
patent: 5668829 (1997-09-01), Saito
Chin Stephen
Gluck Jeffrey W.
Mitsui Mining & Smelting Co. Ltd.
LandOfFree
Spread spectrum communication receiver with synchronizing circui does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spread spectrum communication receiver with synchronizing circui, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spread spectrum communication receiver with synchronizing circui will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1463192