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REMOTE DICTATION SYSTEM USING TELEPHONE LINE
REMOTE DICTATION SYSTEM USING TELEPHONE LINE
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机译:使用电话线的远程检测系统
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摘要
The communications system enables a user to dictate a message at a subscriber station (2) and the message is typed by an operator at an operator station (6) so that the text of the message can be displayed at the subscriber station. A notch filter (3, 7) enables voice and text data to be communicated simultaneously over the same telephone channel.
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