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Spread spectrum digital data transmission over TV video 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04N-007/08
출원번호 US-0811805 (1991-12-20)
발명자 / 주소
  • DeJean Jean P. (Cincinnati OH) Lu Daozheng (Buffalo Grove IL) Weissman Robert (Westport CT)
출원인 / 주소
  • A. C. Nielsen Company (Northbrook IL 02)
인용정보 피인용 횟수 : 339  인용 특허 : 0

초록 ▼

A co-channel communication system allows transmission of one or more data signals in an active or visible portion of a video raster in a manner that is imperceptible to a viewer. More particularly, the data signal is transmitted over a preselected active video lines of a video raster. In order to re

대표청구항 ▼

A co-channel communication system for transmitting one or more data signals concurrently with a raster type video signal comprising: means for modulating said data signals; means for pseudo randomly selecting video lines on which said data signals are to be modulated; and means for combining said mo

이 특허를 인용한 특허 (339)

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  203. Rhoads, Geoffrey B., Music methods and systems.
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  204. Montgomery Gerald D ; Norrish Jay B, Network for retrieval and video transmission of information.
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  225. Rodriguez, Tony F.; Carr, Jonathan Scott; Rhoads, Geoffrey B., Paper-based control of computer systems.
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  226. Rhoads Geoffrey B., Photographic products and methods employing embedded information.
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  227. Rhoads,Geoffrey B.; Davis,Bruce L.; Evans,Douglas B., Portable devices and methods employing digital watermarking.
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  228. Rhoads, Geoffrey B., Printable interfaces and digital linking with embedded codes.
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  229. Rhoads, Geoffrey B., Printer driver separately applying watermark and information.
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  230. Alattar, Adnan M., Process for marking substrates with information using a texture pattern and related substrates.
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  231. Levy, Kenneth L.; Hiatt, R. Stephen; Rhoads, Geoffrey B., Processing audio or video content with multiple watermark layers.
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  233. Powell,Robert D.; Nitzberg,Mark, Protecting images with image markings.
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  234. Rhoads,Geoffrey B., Providing reports associated with video and audio content.
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  236. Moskowitz, Scott A.; Berry, Michael, Secure personal content server.
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  237. Moskowitz, Scott A.; Berry, Mike W., Secure personal content server.
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  243. Moskowitz, Scott A., Security based on subliminal and supraliminal channels for data objects.
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  245. Geoffrey B. Rhoads, Security documents with hidden digital data.
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  246. Bradley, Brett A., Self-orienting watermarks.
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  251. Hassan, Amer; Verthein, Bill, Spectrum pre-shaping in video.
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  270. Evans, Douglas B.; Conwell, William Y., Substituting information based on watermark-enable linking.
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