发明名称 |
Aufzeichnungsverfahren und-vorrichtung fuer die gleichzeitige Wiedergabe fotographischer Aufnahmen und eines aufgezeichneten Kommentars |
摘要 |
Method and system for a simultaneous projection of photographic images associated with a recorded commentary. Electrical signals coming from the audio spectrum representing the commentary are recorded and a series of control pulses having a given carrier frequency and occuring at predetermined intervals are superimposed on the signals. The pulses are modulated with a signal having a frequency different from the carrier frequency. A switching means is actuated by detected and amplified modulating signals for actuating a photographic image changing device and short-circuiting a filter connecting a reading device to a loudspeaker. |
申请公布号 |
DE1797231(A1) |
申请公布日期 |
1970.12.23 |
申请号 |
DE19681797231 |
申请日期 |
1968.09.02 |
申请人 |
TOUVIER-BERTHET,PAUL CLAUDE MARIE;HALLEY,CLAUDE ANSBERT GASTON GUSTAVE PIERRE |
发明人 |
PIERRE HALLEY,CLAUDE ANSBERT GASTON GUSTAVE |
分类号 |
G03B15/08;G03B31/06 |
主分类号 |
G03B15/08 |
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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