Pulse or digital communications – Systems using alternating or pulsating current
Patent
1996-04-05
1997-11-18
Chin, Stephen
Pulse or digital communications
Systems using alternating or pulsating current
375260, 375295, 375350, 455 59, 370442, 370522, H04L 2700
Patent
active
056895291
ABSTRACT:
A method and apparatus for single signal, multiple channel digital information transfer through pulses with time slot allocation. The apparatus consists of one or more transmitting devices and one or more receiving devices. Multiple source signals are each allocated a unique time slot between successive synchronization pulses. Digital signals from each source are converted to analog information pulses synthesized from a combination of a fundamental frequency wave and a finite number of its harmonics. The total signal, which consists of successive synchronization pulses interspersed with information pulses for each signal source, each within its allocated time slot, is transmitted to the receivers. Each receiving device extracts the fundamental frequency and harmonic components through the use of narrow bandpass, high Q filters for each information pulse in its time slot and uses the known algorithm to reproduce the input digital signals. One or more of the harmonic components may be used for transmitting a reference calibration signal.
REFERENCES:
patent: 3805191 (1974-04-01), Kawai
patent: 3890620 (1975-06-01), Toman
patent: 4001728 (1977-01-01), Schneider
patent: 4103238 (1978-07-01), Deming
patent: 4347616 (1982-08-01), Murakami
patent: 4387455 (1983-06-01), Schwartz
patent: 4584692 (1986-04-01), Yazuka
patent: 4766589 (1988-08-01), Fisher
patent: 5220557 (1993-06-01), Kelley
patent: 5274672 (1993-12-01), Weiss
patent: 5364536 (1994-11-01), Tsujimoto
patent: 5369669 (1994-11-01), Tombal et al.
patent: 5390185 (1995-02-01), Hooijmans et al.
Chin Stephen
Ghebretinsae T.
International Automated Systems, Inc.
Nelson J. David
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