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:
Feb. 18, 1997
Filed:
Apr. 13, 1995
Young G Oh, Seoul, KR;
Goldstar Co., Ltd., Seoul, KR;
Abstract
A circuit for controlling a speed and a phase of a VCR servo system includes a Control (CTL) signal generation section, a speed error detection section, a phase error detection section and a speed/phase control section. The phase error detection section has a recording phase error detector and a playback phase error detector. A CTL signal blank discrimination section inputs a CTL pulse from the playback phase error detector, discriminates a blank interval of a CTL signal based on the inputted CTL pulse, and outputs discrimination signal in accordance with the discriminated result. A first switching control section inputs the discrimination signal, an FF/REW mode signal, a recording mode signal and a tape type discriminating signal and performs a logical operation based on the inputted signals to output a first control signal. A second switching control section inputs a video tape loading signal, the FF/REW mode signal and the tape type discriminating signal and performs a logical operation based on the inputted signals to output a second control signal. A first switching section is operative in response to the first control signal and a second switching section is operative in response to the second control signal.