20-2 3ビーム読み出し方式によるハイビジョンビデオディスクプレーヤーの開発
p. 335-336
詳細
p. 335-336
We have developed a videodisc player which playbacks Hi-vision baseband signal with even-powered 3-beam optical readout. To readout playback signals, all beams have to be on the tracks, while no tracking error signal can be obtained. We solved this problem by shifting the side beams by 0.1 μm to the center track.
