Pulse or digital communications – Systems using alternating or pulsating current
Patent
1998-09-02
2000-09-19
Bocure, Tesfaldet
Pulse or digital communications
Systems using alternating or pulsating current
375295, 332117, H04L 2700, H04L 2704, H03C 300
Patent
active
061223247
ABSTRACT:
A method for simultaneously transmitting multiple bits of information through space using a time varying reference signal at a first selected fixed frequency, and a time varying synchronizing clock signal at a second selected fixed frequency establishing a clock period. The signals are combined repeatedly to obtain a multiple of additive and subtractive signals each differing from each other by an integer multiplier of the reference signal frequency. The signals are injected into an N-fold gate which is controlled by the clock signal so as to transmit N-M of the N derivative signals through the N-fold gate during each clock cycle, where 0.ltoreq.M.ltoreq.N so as to produce an N bit word signal. The N bit signal is then mixed with a radio carrier signal for transmission of the N bit signal as a parallel transmission of the N bit signal. This process is repeated continuously to produce an N-times improvement in data transmission rate over serial transmission.
REFERENCES:
patent: 5631929 (1997-05-01), Jones et al.
patent: 5933421 (1999-08-01), Alamouti et al.
Bocure Tesfaldet
Tran Khai
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