发明名称 |
Apparatus using one optical sensor to recover audio information from analog and digital soundtrack carried on motion picture film |
摘要 |
An apparatus recovers audio information from analog and digital motion picture film soundtracks using a single optical sensor that senses across the widths of both soundtracks. Symbols representing audio information in the digital soundtrack are encoded in two dimensions and are recovered by oversampling the symbols in two dimensions. The two-dimensional encoding of digital information can be used with a variety of recording media; however, in one embodiment, the symbols are carried on motion picture film between the sprocket holes. |
申请公布号 |
US5710752(A) |
申请公布日期 |
1998.01.20 |
申请号 |
US19950472230 |
申请日期 |
1995.06.07 |
申请人 |
DOLBY LABORATORIES LICENSING CORPORATION |
发明人 |
SEAGRAVE, CHARLES GORDON;RICHARDS, MARTIN JOHN;MANDELL, DOUGLAS EVAN;ATHERTON, MARK LEIGHTON |
分类号 |
G06K7/10;G03B31/00;G03B31/02;G06K7/14;G06K19/06;G11B7/00;G11B7/003;G11B7/005;G11B7/007;G11B7/013;G11B7/125;G11B7/13;G11B7/135;G11B20/10;G11B20/12;G11B20/14;G11B20/18;G11B20/22;G11B27/36;H04N5/87;H04N5/92;H04N5/93;H04N9/802;H04N9/82;H04N9/89;(IPC1-7):G11B3/74 |
主分类号 |
G06K7/10 |
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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