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:
Nov. 24, 1992
Filed:
Dec. 19, 1991
Takao Sasakura, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
This system is arranged to selectively subject a color or monochrome image signal to the recording signal processing for recording on the recording medium, selectively multiplex a first pilot signal with the color image signal subjected to the recording signal processing or a second pilot signal different from the first pilot signal with the monochrome image signal subjected to the recording signal processing, record the thus-multiplexed signal on the recording medium, detect the pilot signal multiplexed with the signal recorded on the recording medium, discriminate whether the detected pilot signal is the first pilot signal or the second pilot signal, and separate the pilot signal multiplexed with the signal reproduced from the recording medium in accordance with the discrimination result, and correct the time-base variation of the signal reproduced from the recording medium by using the thus-separated pilot signal. In this arrangement, during recording, the pilot signal and the monochrome image signal can be multiplexed without the risk of influencing the image quality conveyed by the monochrome image signal, and the multiplexed signal is recorded on the recording medium. During reproduction, the pilot signal is used to correct the time-base variation of the signal reproduced from the recording medium.