Transceiver for preventing the degradation of reception sensitiv

Details Transceiver for preventing the degradation of reception sensitiv Transceiver for preventing the degradation of reception sensitiv

1994-06-27

1997-02-11

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With a common signal processing stage

455260, 455314, H04B 140

Patent

active

056030991

ABSTRACT:
A transmitter/receiver has a superheterodyne receiver, a transmitter, a local oscillation signal generating section for transmission, a first and a second local oscillation signal generating section for reception, and a fixed frequency divider. A reference signal fed from the outside of the transmitter/receiver is applied to the second reception local oscillation signal generating section having a low loop gain. The output of the second reception local oscillation signal generating section is applied to the fixed frequency divider as well as to the receiver. The resulting output of the fixed frequency divider is fed as a reference signal meant for the transmission local oscillation signal generating section and first reception local oscillation signal generating section. The transmitter/receiver prevents the modulation accuracy of a signal to be transmitted and reception sensitivity from being degraded even when the reference signal introduced from the outside involves noise.

REFERENCES:
patent: 4027242 (1977-05-01), Yamanaka
patent: 4035727 (1977-07-01), Ishii
patent: 4153877 (1979-05-01), Fathauer et al.
patent: 4727594 (1988-02-01), Ruppel
patent: 4817197 (1989-03-01), Shimizu et al.
patent: 5081705 (1992-01-01), Swanke
patent: 5115515 (1992-05-01), Yamamoto et al.
patent: 5204975 (1993-04-01), Shigemori

Affiliated with

Also associated with

Rating

Transceiver for preventing the degradation of reception sensitiv does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transceiver for preventing the degradation of reception sensitiv, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transceiver for preventing the degradation of reception sensitiv will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-351420