Title |
A novel phase error predictor for servo system in home-use VCRs |
Authors |
이상락 ; 박정배 ; 유지윤 ; 박귀태 ; 신영후 |
Keywords |
Phase Error Predictor ; VCR Servo System ; Variable Speed Playback |
Abstract |
A novel phase error predictor is proposed for servo system in home-use VCRs. The multirate system in VCRs is converted into a single period sampling system with faster sampling time by using the proposed novel phase error predictor. And the disturbances can be measured much faster. From the experimental results, we can see that the perfomance of the control system is improved greatly. The phase lock time of the proposed servo system is ten times faster than that of the conventional system. |