Serial-digital receiver

Details Serial-digital receiver Serial-digital receiver

1997-03-21

1999-08-31

Vo, Don N.

Pulse or digital communications

Multilevel

375289, 375316, 341 56, 341 69, H04L 2534

Patent

active

059463554

ABSTRACT:
An improved serial-digital data receiver that receives a scrambled NRZI voltage signal representing a transmitted serial-digital data signal converts the scrambled NRZI voltage signal in the analog domain to a bi-polar or pseudo-ternary voltage signal. The bi-polar voltage signal is then input to a slicer and clock recovery circuit to provide a recovered clock signal and a scrambled NRZ data signal in the digital domain. The scrambled NRZ data signal is then descrambled to recover the transmitted serial-digital data signal. Single bit error identification and limited correction may be included by using a sequential state machine decoder to generate an error flag and by using a "soft-decision" circuit to identify the probable bit error location. The probable bit error location is used to invert suspected bit errors, partially correcting the bit errors, and the error flag is used to control a switch that selects either the scrambled NRZ data signal or the partially corrected version of the scrambled NRZ data signal for descrambling.

REFERENCES:
patent: 4470081 (1984-09-01), Chi
patent: 5113186 (1992-05-01), Remson
patent: 5280500 (1994-01-01), Mazzola et al.
patent: 5282032 (1994-01-01), Baker
patent: 5313496 (1994-05-01), De Goede
patent: 5450441 (1995-09-01), Harris et al.
patent: 5621755 (1997-04-01), Bella et al.
"Pathological Check Codes for Serial Digital Interface Systems" by Takeo Eguchi, SMPTE Journal, Aug. 1992, pp. 553-558.

Affiliated with

Also associated with

Rating

Serial-digital receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Serial-digital receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Serial-digital receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2428150