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发明授权
US07317864B2 Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof 有权
用于发送信息的方法和装置，以及用于该信息的再现装置，接收装置和记录介质及其发送数据

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof
摘要：
An output control (OPC) information is recorded on the magnetic tape 1 in conjunction with an MPEG stream. The OPC information is composed of two bits and is extracted from a reproduced signal by the output control circuit 9 and controls the digital interface (D. I/F) 7 and the switch circuit 11. In case a first bit of the OPC information is “0”, the output control circuit 9 makes the D. I/F 7 enabled and permits the output of a digital signal. In a case of “1”, the output control circuit 9 prohibits to output the digital signal. Further, when the second bit of the OPC information is “0”, the output control circuit 9 turns the switch circuit 11 off, preventing the output of an analog component signal. In case its “1”, the output control circuit 9 permits the output of the analog component signal.
摘要（中）：

输出控制（OPC）信息结合MPEG流被记录在磁带1上。 OPC信息由两位组成，并由输出控制电路9从再现信号中提取出来，并控制数字接口（D.I / F）7和开关电路11。 在OPC信息的第一位为“0”的情况下，输出控制电路9使得D.I / F7使能并允许数字信号的输出。 在“1”的情况下，输出控制电路9禁止输出数字信号。 此外，当OPC信息的第二位为“0”时，输出控制电路9关闭开关电路11，防止模拟分量信号的输出。 在“1”的情况下，输出控制电路9允许模拟分量信号的输出。

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