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:
Sep. 05, 2011
Filed:
Mar. 24, 2009
Je Hyung Lee, Cupertino, CA (US);
Soo Kyung Kim, Seoul, KR;
Sang Joon Woo, Seoul, KR;
Tae Seok Yang, Soengnam-Shi, KR;
Je Hyung Lee, Cupertino, CA (US);
Soo Kyung Kim, Seoul, KR;
Sang Joon Woo, Seoul, KR;
Tae Seok Yang, Soengnam-Shi, KR;
LG Electronics Inc., Seoul, KR;
Abstract
An apparatus and method for controlling recording and reproduction in a video cassette tape recorder are disclosed apparatus is capable of, in a recording mode, separating specific data for speed-varied reproduction from compressed digital video signals, recording them on designated tracks, recording position information of the designated tracks on a control track by an index head or recording position information of recording position-synchronized blocks at the starting portions of the designated tracks recorded with the specific data, and in a speed-varied reproduction mode, controlling a capstan servo speed so as to maintain the travel of a magnetic tape at a normal speed and periodically or non-periodically accelerate or decelerate it where specific data for varied-speed have been recorded periodically or non-periodically on predetermined portions of tracks, thereby making heads travel repeatedly at the normal speed and the high speed and thereby detect continuously the specific tracks for varied-speed. A repeatability of reproduced video at a varied speed is obtained without any deterioration in picture quality, because of recording of the specific data for speed-varied reproduction and the continuous detection of the specific data in the speed-varied reproduction.Apparatus and method for controlling recording and/or reproduction of digital signals to and/or from a digital storage medium, are discussed. According to an embodiment, the method includes receiving digital data, the digital data including video data compressed as at least one of intra-frame and predictive frame, stuffing data, synchronous signals, and relative position information associated with an I-frame; detecting the synchronous signals for decoding the video data; obtaining the video data from the digital data by removing the stuffing data based on stuffing code information; determining a position associated with the I-frame by using the relative position information; determining whether a speed-varied reproduction mode is selected for reproduction of the video data in a varied speed; and reproducing the video data based on the determined position associated with the I-frame, the synchronous signals, and a result of the step of determining whether the speed-varied reproduction mode is selected.