Delay detection circuit

Details Delay detection circuit Delay detection circuit

1993-12-30

1996-04-23

Chin, Stephen

Pulse or digital communications

Receivers

Angle modulation

375329, 375334, 329300, 329304, 455214, H04L 2714

Patent

active

055110975

ABSTRACT:
This delay detection circuit receives a digital-phase-modulated signal including an already-known preset symbol string and an unknown data symbol string following the already-known string, and detects a phase difference between an instantaneous phase of a reception signal and an instantaneous phase after a preset symbol time from the time of the reception signal received using a phase difference detector. Then, the delay detection circuit calculates a compensation phase difference necessary to demodulate the reception signal from the phase difference, the phase difference of demodulation symbol estimated from the already-known symbol string and the phase difference of demodulation symbol estimated from the data symbol string, and demodulate the reception signal based on the compensation phase difference.

REFERENCES:
patent: 5049830 (1991-09-01), Yoshida
patent: 5056122 (1991-10-01), Price
patent: 5228062 (1993-07-01), Bingham
patent: 5260975 (1993-11-01), Saito
patent: 5287067 (1994-02-01), Denno et al.
patent: 5299231 (1994-03-01), Guglielmi et al.

Affiliated with

Also associated with

Rating

Delay detection 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 Delay detection circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Delay detection circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2315345