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:
Mar. 08, 1994
Filed:
Sep. 09, 1992
Hee M Kim, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
An apparatus for removing foreign materials from the head of a video cassette recorder or a video camera wherein the foreign materials adhering to the head are repeatedly cleansed away by a head cleaner until the foreign materials are completely removed. A synchronizing signal detecting section 20 detects synchronizing signals from among video signals amplified by a video mechanism 10. The synchronizing signal detecting section 20 then converts the detected signals into a DC voltage. An envelope detecting section 30 detects envelope signals from among the video signals and converts them into a DC voltage. The output of the synchronizing signal detecting section 20 and that of the envelope detection section 30 are compared by a comparing section 40. A microcomputer 60 controls the head cleaner 12 in accordance with the output of the comparing section 40, thereby making it possible to completely clean the head with an apparatus that is convenient and easy to use.