Frequency of occurrence retraining decision circuit

Details Frequency of occurrence retraining decision circuit Frequency of occurrence retraining decision circuit

1987-08-07

1988-06-21

Envall, Jr., Roy N.

Pulse or digital communications

Spread spectrum

Direct sequence

375 8, H04L 706

Patent

active

047529431

ABSTRACT:
In a system encompassing the transmission of high speed data over a communication channel, a circuit provides information as to whether the modems of the system are in synchronism. The circuit first determines the number of points being received within a given time at a certain inner location in the signal constellation and at another certain outer location in the signal constellation. The circuit includes an up/down counter which is incremented for each inner point received by the circuit and decremented for each outer point received. The counter output is conveyed to a comparator which determines whether the counter output has reached a preselected threshold. At the time that the counter output reaches the preselected threshold, the comparator outputs a signal which is indicative of the fact that the modems of the system are out of synchronism and retraining of the system is required.

REFERENCES:
patent: 4601044 (1986-07-01), Kromer, III et al.
patent: 4646325 (1987-02-01), Zuranski et al.
patent: 4651320 (1987-03-01), Thapar

Affiliated with

Also associated with

Rating

Frequency of occurrence retraining decision circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency of occurrence retraining decision circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency of occurrence retraining decision circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-933973