The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 1996
Filed:
Jun. 07, 1994
Shinri Inamori, Yokohama, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A motion detecting circuit and a noise reducing circuit of high reliability and independent of the magnitude of motion, presence/absence of noise, and magnitude of the noise. The motion detecting circuit includes a subtractor 14 which receives as inputs, an input video signal VS.sub.i from an input terminal 10 and a delayed video signal VS.sub.d delayed by one picture unit (one frame in the case of the NTSC format) from a frame memory 12. The difference between the two signals VS.sub.i and VS.sub.d is taken and a difference signal e is output for each pixel of a video display. A motion determination circuit 16 is provided, having: a difference polarity determination unit which determines the polarity of difference e as input from a difference generating unit 15 for each pixel and its adjacent pixels; a difference value determination unit which determines the magnitude of difference e as input from difference generating unit 15 for each pixel and its adjacent pixels; and a motion determination unit which determines whether the pixel is contained in the motion picture region based on the results of the determination of the difference polarity determination unit and the difference value determination unit; and a 1-bit motion determination signal MC representing the results of the determination of the motion determination unit is output.