Procedure for forming frequencies of a digital radio telephone

Details Procedure for forming frequencies of a digital radio telephone Procedure for forming frequencies of a digital radio telephone

1992-04-27

1994-03-01

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

455 77, 455 76, H04B 150

Patent

active

052914747

ABSTRACT:
A procedure is utilized for forming the transmission and reception frequencies required for the operation of a digital radio telephone based on time division multiplex access, in particular, in a radio telephone for the GSM system. According to the procedure, the mixer frequencies used in the transmitter and the receiver of the radio telephone are formed by a synthesizer and a basic oscillator commmon to both the receiver and transmitter. The clock frequency for the logic of the radio telephone and the RF reference frequency to the synthesizer are produced by dividing the output frequency of the common basic oscillator.

REFERENCES:
patent: 4186343 (1980-01-01), Kakigi
patent: 4231116 (1980-10-01), Sekiguchi et al.
patent: 4267592 (1981-05-01), Craiglow
patent: 4317221 (1982-02-01), Toya
patent: 4373205 (1983-02-01), Mizota
patent: 4476575 (1984-10-01), Franke et al.
patent: 4489413 (1984-12-01), Richmond et al.
patent: 4513447 (1985-04-01), Carson
patent: 4542531 (1985-09-01), Fukumura
patent: 4588453 (1985-12-01), Minken
patent: 4694466 (1987-09-01), Kaolin
patent: 4703520 (1987-10-01), Rozanski, Jr. et al.
patent: 4809355 (1989-02-01), Drefahl
patent: 4825448 (1989-04-01), Critchlow et al.
patent: 4903257 (1990-02-01), Takeda et al.
patent: 4932072 (1990-06-01), Toko
European Search Report completed Dec. 21, 1990, EP 903352983.

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