System and method for enabling compatibility between digital...

Details System and method for enabling compatibility between digital... System and method for enabling compatibility between digital...

2006-08-29

2006-08-29

Philippe, Gims (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C348S445000

Reexamination Certificate

active

07099388

ABSTRACT:
The invention converts a digital HDTV or SDTV video and/or audio signal(s) into an analog signal which is compatible with existing analog systems. The compatible analog signal carries the digital video and/or audio in a quasi digital form which provides immunity to analog noise and distortion. Digital video and audio are compressed to provide digital compressed signals that are coupled to a digital to analog formatter where they are formatted into an NTSC, PAL, or SECAM compatible analog signal. The active video portion of the signal uses a multilevel pulse amplitude coded signal to carry the digital compressed signal. The converted analog signal can then be stored or transmitted using existing NTSC, PAL, or SECAM standards and equipment.

REFERENCES:
patent: 4870489 (1989-09-01), Ducret
patent: 4953025 (1990-08-01), Saitoh et al.
patent: 5774193 (1998-06-01), Vaughan
patent: 6020927 (2000-02-01), Tanaka et al.
patent: 6611293 (2003-08-01), Tarnoff et al.
patent: 6710817 (2004-03-01), Oku et al.
“HDTV's future out of focus” Jul. 31, 1998 Steward Jennison http://www.messenger-inquirer.com/vision2008/e22370.htm.
“RCA DTC-100 Satellite REceiver and HDTV to Analog Converter Now Available!!” http://store.yahoo.com/dss4u/rcadrslavrec.html.

Affiliated with

Also associated with

Rating

System and method for enabling compatibility between digital... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for enabling compatibility between digital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for enabling compatibility between digital... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3715261