VSB modulator

Details VSB modulator VSB modulator

1996-03-04

1998-06-09

Bogure, Tesfaldet

Pulse or digital communications

Transmitters

Amplitude modulation

332170, H04L 2704, H03C 152

Patent

active

057647011

ABSTRACT:
A VSB modulator receives a stream of data at a 10.76 MHz constant symbol rate and converts it to a 6 MHz bandwidth signal centered at 44.0 MHz. The incoming data is interpolated by three to generate three data images and a digital filter selects the image embracing the range of 5.38 to 10.76 MHz. A sine X/X correction is added to compensate for the loss experienced in the D/A converter. The signal for the D/A converter is filtered and mixed with a 35.93 MHz oscillator output to produce data about the 44.0 MHz IF frequency. A SAW filter rejects all but the desired data.

REFERENCES:
patent: 4003002 (1977-01-01), Snijders et al.
patent: 4617537 (1986-10-01), Nossek
patent: 4802191 (1989-01-01), McGeehan et al.
patent: 5313279 (1994-05-01), Wang et al.
patent: 5327462 (1994-07-01), Takahashi et al.
patent: 5469475 (1995-11-01), Voorman

Affiliated with

Also associated with

Rating

VSB modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2210412