Pulse or digital communications – Repeaters – Testing
Patent
1994-10-25
1996-04-09
Cangialosi, Salvatore
Pulse or digital communications
Repeaters
Testing
H04B 169
Patent
active
055068626
ABSTRACT:
The present invention comprises the digital implementation of a spread spectrum communications system including a spread spectrum modulator or transmitter and a spread spectrum receiver or demodulator. The demodulator, as modified with optional techniques, operates at zero I. Under these circumstances the receiver is susceptible to 1/F noise, as well as transient overloads. The addition of a high pass filter stage to only the receiver, in a communication system, without modifying the transmitter, will be recognized by those skilled in the art as violating the basic precepts of communications which attempt to tailor the characteristics of a receiver and transmitter to each other. However the applicant has found that demodulating RZ encoded data with an added high pass filter results in the production of Manchester data which is one of the forms of data encoding that can be handled by the demodulator.
REFERENCES:
patent: 4785448 (1988-11-01), Reichert et al.
patent: 5164985 (1992-11-01), Nysen et al.
patent: 5170396 (1992-12-01), Rivers et al.
patent: 5216693 (1993-06-01), Nakamura
patent: 5375141 (1994-12-01), Takahashi
patent: 5381446 (1995-01-01), McIntosh
patent: 5396653 (1995-03-01), Kivari et al.
Cangialosi Salvatore
Digital Wireless Corp.
LandOfFree
Digital implementation of spread spectrum communications 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 implementation of spread spectrum communications system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital implementation of spread spectrum communications system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-144366