Reliable burst signal detecting apparatus

Details Reliable burst signal detecting apparatus Reliable burst signal detecting apparatus

1996-02-09

1997-12-23

Olms, Douglas W.

Multiplex communications

Duplex

Transmit/receive interaction control

375342, 375360, H03K 51534

Patent

active

057012962

ABSTRACT:
In a burst signal detecting apparatus, a first circuit is provided to detect a falling edge in a burst signal to generate a first pulse signal when a low level of the burst signal continues for a time period after the falling edge is detected in the burst signal. Also, a second circuit is provided to detect a rising edge in a burst signal to generate a second pulse signal when a high level of the burst signal continues for the time period after the rising edge is detected in the burst signal. The first pulse signal is logically combined with the second pulse signal to generate a burst signal detection signal. Each of the time periods is smaller than a minimum time period of one bit of the burst signal. The pulse width of each of the first and second pulse signals is longer than a time period of a predetermined number of bits of the burst signal.

REFERENCES:
patent: Re35078 (1995-10-01), Ryan
patent: 4397042 (1983-08-01), Tsuji
patent: 4507795 (1985-03-01), Wagner

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