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. 21, 1999
Filed:
Oct. 25, 1996
Byeong-soo Kim, Kwachun, KR;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A frame pulse generation apparatus for a SD-VCR generates a correct frame pulse even though a track pair number differs from an original one due to an error, to obtain an accurate picture. A frame base pulse generator compares the track pair number detected from a reproduced signal with a reference number and generates a frame base pulse toggled whenever the comparison result represents consistency. A phase-locked-loop (PLL) circuit controls the phase and period of the generated frame base pulse to be constant, and outputs a final frame pulse. The apparatus also greater a reference frame pulse a stable clock obtained by dividing the system clock and controlling the rotational speed of a drum so that track pair number detected at the level transition point of the reference frame pulse becomes a desired number, in order to contain one-frame data within the reference frame pulse. Thus, a normal reproduced picture can be formed irrespective of errors.