Data transmitter-receiver

Details Data transmitter-receiver Data transmitter-receiver

1997-03-13

1999-07-06

Pham, Chi H.

Pulse or digital communications

Transceivers

Transmission interface between two stations or terminals

375219, 455343, H04B 138, H04B 116

Patent

active

059205920

ABSTRACT:
A data transmitter-receiver for reducing high-frequency noise which leads to a cause of performance deterioration of a radio instrument, and for eliminating dissipation current. The data transmitter-receiver transmits transmitting data to a modulator-demodulator connected to a radio instrument, and receives receiving data from the modulator-demodulator. A terminal controlling section 3 of the data transmitter-receiver performs data processing on the receiving data, thus outputting to a data-terminal, and performs data processing transmitting signal from the data-terminal, thus generating the receiving data. The terminal controlling section causes the low-speed clock LC to generate on the clock generating section during transmission-reception-period both of the receiving data and the transmitting data, and causes the high-speed clock HC to generate on the clock generating section during non-transmission-reception-period both of the receiving data and the transmitting data, both the high-speed clock and the low-speed clock are operating-clock. Furthermore, the operating ratio detector causes the low-speed clock to generate when the operating ratio of the terminal controlling section is low.

REFERENCES:
patent: 5058203 (1991-10-01), Inagami
patent: 5142684 (1992-08-01), Perry et al.
patent: 5142699 (1992-08-01), Sato et al.
patent: 5187471 (1993-02-01), Wagai et al.
patent: 5426755 (1995-06-01), Yokouchi et al.
patent: 5628001 (1997-05-01), Cepuran

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