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

Volume

41

Issue

3

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

662

Lastpage

668

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;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.468086

Filename

468086