Method and apparatus for transmitting a signal with an offset wh

Details Method and apparatus for transmitting a signal with an offset wh Method and apparatus for transmitting a signal with an offset wh

1991-05-10

1993-11-09

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Distortion, noise, or other interference prevention,...

455 69, 455 87, 375 67, H04B 110

Patent

active

052611205

ABSTRACT:
A transmitting and receiving apparatus suitable for use as a digital cellular type mobile station. The reference reception carrier frequency and the reference transmission carrier frequency are different. Signals are transmitted and received such that an offset frequency of a received signal of an actual reception carrier frequency relative to the reference reception carrier frequency is detected and multiplied with a signal of the reference transmission carrier frequency, and the multiplied output used as the transmitted signal of an actual transmission carrier frequency which follows the actual reception carrier frequency.

REFERENCES:
patent: 2974222 (1961-03-01), Lawson
patent: 3940695 (1976-02-01), Sickles, II
patent: 4019138 (1977-04-01), Watanabe et al.
patent: 4430756 (1984-02-01), Dolman et al.
patent: 4489413 (1984-12-01), Richmond et al.
patent: 4901368 (1990-02-01), Arnold et al.
patent: 5113416 (1992-05-01), Lindell

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