Method and apparatus for detecting binary encoded data

Details Method and apparatus for detecting binary encoded data Method and apparatus for detecting binary encoded data

1993-04-05

1996-02-06

Chin, Stephen

Pulse or digital communications

Receivers

Automatic baseline or threshold adjustment

375340, 371 6, H04L 2506

Patent

active

054901758

ABSTRACT:
Binary encoded data may be detected in a stream of data, by first detecting data transitions. From the detected data transitions, a first pulse is generated when successive data transitions are detected within a predetermined period of time and a second pulse is generated when successive data transitions are not detected within the predetermined period of time. The first and second pulses have the same duration but the amplitude of the first pulses is half of the amplitude of the second pulses. The first and second pulses are filtered by a bandpass filter and compared with a predetermined threshold. When the filtered pulses are above the predetermined threshold, the received stream of data is binary encoded data. When the filtered pulses are below the predetermined threshold, the received stream of data is not binary encoded data.

REFERENCES:
patent: 3303425 (1963-04-01), Pendleton
patent: 3409833 (1968-11-01), Dalton
patent: 4080572 (1978-03-01), Hastings et al.
patent: 4307465 (1981-12-01), Geller
patent: 4370748 (1983-01-01), Janc et al.
patent: 4783658 (1988-11-01), Nakano et al.

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