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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0509322 (1995-07-31) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 43 인용 특허 : 0 |
A monitoring apparatus which is operable during muting, even though it relies on audio to monitor program signals transmitted by broadcast sources. The monitoring is performed by transmitting a combined signal derived by adding a code to an audio program signal. During muting, the audio is inhibited
Apparatus for monitoring a program signal transmitted by a broadcast source, wherein an audio portion of the program signal is combined with a coded signal for transmission as a combined signal, said apparatus including a receiver and a monitoring unit, wherein at least a portion of said monitoring
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