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:
Jul. 10, 2001
Filed:
Jun. 02, 1998
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The invention includes an interpolation circuit for generating interpolation scanning lines by averaging adjacent scanning lines from an interlaced input video signal. Also included is a motion detecting circuit for detecting the amount of motion of the input video signal. The output signal of the interpolation circuit is connected to an amplitude control circuit controlled by the amount of motion from the motion detecting circuit. The input video signal terminal and the output terminal of the amplitude control circuit are connected to a converter circuit which performs time division multiplexing of the interlaced input video scanning lines and interpolation scanning lines by using a clock 2fH from a control signal input terminal. The clock has a frequency which is two times the horizontal scanning frequency. The motion detecting circuit detects the amount of motion and if the amount of motion is small, amplitude control of the interpolation scanning lines is not-performed. If the amount of motion is large, control is performed in the amplitude control circuit to provide an amplitude difference between the real scanning lines and the interpolation scanning lines.