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:
Dec. 10, 1991
Filed:
Aug. 16, 1988
Kenji Tsunashima, Nagaokakyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A time axis correcting device for removing change in time axis in an input video signal includes a video signal memory unit; a write-in control unit operable in response to a sampling command signal to write the input video signal in the video signal memory unit at a write-in timing conforming to the change in time axis in the input video signal; a read-out control unit for reading out the video signal from the video signal memory unit at a predetermined read-out timing; a read-only memory for storing a sampling data of a sine wave; a reference signal sampling circuit for sampling the reference signal from the input video signal; an address control unit for calculating the difference in phase between a sampling point and a reference position for the sampling point according to a sampling value of the reference signal sampled from the input video signal and also for addressing the read-only memory according to the difference in phase to cause the read-only memory to output a corrected reference signal; and a signal converter for converting the corrected reference signal into the sampling command signal.