Title :
Skip play technology for home-use digital VCRs
Author :
Lee, Sang-Lak ; Yoo, Ji-Yoon ; Park, Gwi-Tae ; Sheen, Yong-Hoo ; Kim, Yung-Gil
Author_Institution :
Dept. of Electr. Eng., Korea Univ., Seoul, South Korea
fDate :
8/1/1995 12:00:00 AM
Abstract :
A skip play technology is proposed for noiseless variable-speed playback in home-use digital VCRs by using a state feedback controller with a novel phase error predictor. In this proposed skip play mode, the fixed scanner heads read tracks at normal speeds in the normal state, skip several tracks at very high speeds in the skip state, go back to the normal state, and repeats this cycle repeatedly. So a noiseless single frame is reconstructed. The proposed scheme needs no modifications in neither the coding scheme not servo hardware, and allows noiseless playback at speeds up to 25-times normal in the forward direction
Keywords :
consumer electronics; digital control; error analysis; feedforward; predictive control; state feedback; state-space methods; video tape recorders; fixed scanner heads; home-use digital VCRs; noiseless single frame; noiseless variable-speed playback; phase error predictor; skip play technology; state feedback controller; Actuators; DC motors; Decoding; Error correction; Hardware; Head; Image reconstruction; State feedback; Streaming media; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
