System for generating and displaying a compatible high definitio

Details System for generating and displaying a compatible high definitio System for generating and displaying a compatible high definitio

1982-09-27

1985-08-06

Murray, Richard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 704

Patent

active

045339511

ABSTRACT:
A high-definition camera uses sinuous or line scanning to produce wide bandwidth signals having high-definition in the horizontal and vertical directions. A wobble signal having a wobble chosen at an even integer multiple of one-half the line rate is used to create the sinuous scanning. The phase of the wobble signal is inverted on alternate frames to provide a full raster scan on a high-definition television receiver. A low pass filter produces a limited bandwidth signal from the wide bandwidth signal. The limited bandwidth signal is compatible with standard definition broadcast systems and receivers. At the receiver the high-definition image may be recreated by using a delta signal representative of the difference between the high-definition signal and the standard definition signal in conjunction with the limited bandwidth signal. The delta signal and its addresses may be transmitted during the vertical blanking interval. In order to reduce the data rate of the delta signal its generation is inhibited in regions of the picture which exhibit frame-to-frame motion.

REFERENCES:
British Kinematography, "A Review of Television Recording, 1946-1956", vol. 31, No. 4, pp. 87-103, (Oct. 1957).
Journal of British Institution of Radio Engineers, "The Evaluation of Picture Quality with Special Reference to Television Systems", (Phelp), pp. 211-253, (Apr. 1952).
"The Relation Between Picture Size, Viewing Distance and Picture Quality", Proc. Instn, Elect. Engrs., Paper 254OR, (Feb. 1958), 10 pages.

Affiliated with

Also associated with

Rating

System for generating and displaying a compatible high definitio 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 for generating and displaying a compatible high definitio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for generating and displaying a compatible high definitio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-515801