发明名称 |
Recording disk data playback apparatus |
摘要 |
A recording disk playback apparatus which is compatible with playback of both compact audio disks (CDs), having only a digitized audio signal recorded thereon, and recording disks having video and audio signals recorded by frequency modulation thereon together with a superimposed digitized audio signal (LDDs), includes means whereby a read-out clock signal which reads out temporarily stored digitized audio data from a memory is held fixed in frequency when a CD is being played, with closed-loop control of the speed of a CD drive motor being also executed, to thereby eliminate jitter in the demodulated audio signal, while during playing of an LDD the read-out clock signal is phase-locked with a playback clock signal.
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申请公布号 |
US4698695(A) |
申请公布日期 |
1987.10.06 |
申请号 |
US19850776707 |
申请日期 |
1985.09.16 |
申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
KOSAKA, MINORU;BANNO, TUTOMU |
分类号 |
G11B20/14;G11B7/005;G11B19/28;G11B20/10;G11B20/22;H04N5/76;H04N5/95;H04N9/802;H04N9/835;(IPC1-7):H04N5/76;G11B7/00;G11B19/20 |
主分类号 |
G11B20/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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