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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0482752 (2000-01-13) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 238 인용 특허 : 237 |
An identification code signal is hidden in a carrier signal (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned. The carrier signal can thereby be identified, or some machine responsive action can thereby be taken. The tec
An identification code signal is hidden in a carrier signal (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned. The carrier signal can thereby be identified, or some machine responsive action can thereby be taken. The technique can be applied in video imagery embodiments to control associated video equipment, e.g. to serve as a copy control signal.
[ I claim:] [1.]1. A method of processing input audio data to steganographically encode a multi-bit code therein, thereby producing output audio data, characterized by:defining a global scaling parameter;algorithmically determining, from the input audio data, a first parameter for each of a first pl
[ I claim:] [1.]1. A method of processing input audio data to steganographically encode a multi-bit code therein, thereby producing output audio data, characterized by:defining a global scaling parameter;algorithmically determining, from the input audio data, a first parameter for each of a first plurality of portions of the audio data, said first parameter relating to the relative capability of said portion to conceal encoding thereof;encoding at least a portion of the code through each of a second plurality of portions of the audio data to produce the output audio data, said second plurality being a subset of the first plurality, the code in each of said second plurality of portions being encoded in accordance with both the first parameter corresponding to said each portion, and said global scaling parameter;wherein the relative strength of the code through different portions of the output audio changes both in accordance with characteristics of the input audio, and globally in accordance with a global scale factor.
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