Communication system

Details Communication system Communication system

1995-09-06

2000-08-01

Pham, Chi H.

Pulse or digital communications

Systems using alternating or pulsating current

375260, 375268, 455 63, 332149, H04L 2700

Patent

active

060977620

ABSTRACT:
A communication system that can satisfactorily communicate with a mobile station by a transmitter and receiver of a simple arrangement, wherein a plurality of carriers having different frequencies are transmitted simultaneously and data is transmitted on the basis of a phase difference between the carriers. Also, the carriers are multiplied with a predetermined time waveform and transmitted, so that a reception side receives data by use of a time waveform narrower than the above time waveform.

REFERENCES:
patent: 3898566 (1975-08-01), Switzer et al.
patent: 4601045 (1986-07-01), Lubarsky
patent: 4641318 (1987-02-01), Addeo
patent: 4837786 (1989-06-01), Gurantz et al.
patent: 5226081 (1993-07-01), Hinokimoto
patent: 5243629 (1993-09-01), Wei
patent: 5541552 (1996-07-01), Suzuki et al.
patent: 5663986 (1997-09-01), Striffler

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