Sweep method using digital signals

Details Sweep method using digital signals Sweep method using digital signals

2005-11-01

2005-11-01

Tse, Young T. (Department: 2637)

Pulse or digital communications

Testing

C375S316000, C329S371000, C348S726000, C348S731000, C455S067110

Reexamination Certificate

active

06961370

ABSTRACT:
An apparatus, system, and method, for determining the total frequency response of a communication system, include one or more testers each having a tuner, digital demodulation circuitry, and a controller that measures an absolute power level at the tester location for a particular channel and that measures a relative frequency response for the channel based on the tap weight coefficients from the digital demodulation circuitry. The absolute and relative measurements are combined and then recorded by each tester. The combined values of two or more testers are compared to determine the total frequency response of the communication system. The relative response measurements are converted from time domain to frequency domain by fast Fourier transformation. The controllers maintain a channel plan for sequencing the sweeping of consecutive channels.

REFERENCES:
patent: 4007423 (1977-02-01), Dickinson
patent: 4207431 (1980-06-01), McVoy
patent: 4685065 (1987-08-01), Braun et al.
patent: 4710969 (1987-12-01), Fluck, Jr. et al.
patent: 5073822 (1991-12-01), Gumm et al.
patent: 5175626 (1992-12-01), White
patent: 5233418 (1993-08-01), Gumm et al.
patent: 5394185 (1995-02-01), Bernard
patent: 5404161 (1995-04-01), Douglass et al.
patent: 5473361 (1995-12-01), Penney
patent: 5495203 (1996-02-01), Harp et al.
patent: 5673293 (1997-09-01), Scarpa et al.
patent: 5711001 (1998-01-01), Bussan et al.
patent: 5867206 (1999-02-01), Voght et al.
patent: 6233274 (2001-05-01), Tsui et al.

Affiliated with

Also associated with

Rating

Sweep method using digital signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3452831