Receiver for pulse width modulated transmissions

Details Receiver for pulse width modulated transmissions Receiver for pulse width modulated transmissions

1997-06-24

2000-03-14

Pham, Chi H.

Pulse or digital communications

Pulse width modulation

327175, 370212, H03K 708, H03K 908

Patent

active

060382554

ABSTRACT:
In a receiver, a system and method are disclosed for providing improved detection of data from a transmitted sequence of pulse width modulated (PWM) pulses. The disclosed system includes a pulse detector having an adjustable critical duty cycle for distinguishing between first and second pulses based upon their respective long and short duty cycles at which they are received. The disclosed system further includes an element which determines the duty cycle of the received pulses and an element which adjusts the critical duty cycle based on the duty cycle which is so determined. The duty cycle may be determined by determining the correspondence between information obtained from an initial pulse sequence and reference information at the receiver. In the disclosed method, the duty cycle of pulses in an initial sequence is first determined and then checked against a predetermined limit. If the duty cycle falls outside the limit, the critical duty cycle is adjusted prior to further pulses being detected.

REFERENCES:
patent: 3949394 (1976-04-01), Kennedy
patent: 4695840 (1987-09-01), Darilek
patent: 4985640 (1991-01-01), Grochowski et al.
patent: 5144265 (1992-09-01), Petzold
patent: 5315299 (1994-05-01), Matsumoto
patent: 5345231 (1994-09-01), Koo et al.
patent: 5355137 (1994-10-01), Schurmann
patent: 5376922 (1994-12-01), Kiss
patent: 5436853 (1995-07-01), Shimohara
patent: 5471187 (1995-11-01), Hansen et al.
patent: 5550499 (1996-08-01), Eitrheim
patent: 5557280 (1996-09-01), Marsh et al.
patent: 5638016 (1997-06-01), Eitrheim
patent: 5847589 (1998-12-01), Arai et al.

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