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Spread spectrum arrangement for (de)multiplexing speech signals and nonspeech signals

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04J-003/02
출원번호 US-0138721 (1980-04-09)
발명자 / 주소
  • Maxemchuk Nicholas F. (Mountainside NJ)
출원인 / 주소
  • Bell Telephone Laboratories, Incorporated (Murray Hill NJ 02)
인용정보 피인용 횟수 : 251  인용 특허 : 2

초록

It is known to multiplex speech signals and nonspeech signals over a common communication path. One arrangement uses a portion of the frequency spectrum of the path for speech signals with the remainder for nonspeech signals. Another inserts data signals during gaps in the speech signals. Still anot

대표청구항

A signal processor including a first input terminal (105) adapted to receive a speech signal, a second input terminal (185) adapted to receive a nonspeech signal, means for multiplexing said speech signal and said nonspeech signal, means for extending said multiplexed signal to an output terminal (1

이 특허에 인용된 특허 (2)

  1. Schiff Leonard N. (Trenton NJ), Compandor for group of FDM signals.
  2. Mounts Frank William (Colts Neck NJ) Netravali Arun Narayan (Matawan NJ) Prasada Birendra (Matawan NJ), Picture signal coder.

이 특허를 인용한 특허 (251)

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  7. Rhoads, Geoffrey B., Audio encoding to convey auxiliary information, and decoding of same.
  8. Rhoads, Geoffrey B., Audio encoding to convey auxiliary information, and media embodying same.
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  14. Rhoads, Geoffrey B., Audio steganography.
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  17. Rhoads, Geoffrey B., Audio with hidden in-band digital data.
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  29. Rhoads, Geoffrey, Computer system linked by using information in data objects.
  30. Rhoads, Geoffrey B., Computer system linked by using information in data objects.
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  39. Rhoads, Geoffrey B., Content objects with computer instructions steganographically encoded therein, and associated methods.
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  41. Rhoads, Geoffrey B., Controlling a device based upon steganographically encoded data.
  42. Rhoads, Geoffrey B., Controlling use of audio or image content.
  43. Rhoads, Geoffrey B., Controlling use of audio or image content.
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  50. Powell,Robert D.; Nitzberg,Mark, Decoding hidden data from imagery.
  51. Levy, Kenneth L.; Rhoads, Geoffrey B., Deriving attributes from images, audio or video to obtain metadata.
  52. Rhoads, Geoffrey B., Deriving identifying data from video and audio.
  53. Levy, Kenneth L.; Hannigan, Brett T.; Bradley, Brett A.; Rhoads, Geoffrey B., Deriving multiple identifiers from multimedia content.
  54. Rhoads, Geoffrey B., Detecting embedded signals in media content using coincidence metrics.
  55. Rhoads, Geoffrey B., Detecting hidden auxiliary code signals in media.
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  74. Davis,Bruce L.; Rhoads,Geoffrey B., Embedding and reading imperceptible codes on objects.
  75. Rhoads,Geoffrey B., Embedding hidden auxiliary code signals in media.
  76. Rhoads, Geoffrey B., Embedding hidden auxiliary information in media.
  77. Miller,Marc D.; Hawes,Jonathan L., Embedding watermark components during separate printing stages.
  78. Geoffrey B. Rhoads, Emulsion film media employing steganography.
  79. Rhoads, Geoffrey B., Emulsion products and imagery employing steganography.
  80. Rhoads, Geoffrey B., Encoding and decoding media signals.
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  82. Rhoads, Geoffrey B.; Gustafson, Ammon E., Equipment employing watermark-based authentication function.
  83. Rhoads, Geoffrey B., Error processing of steganographic message signals.
  84. Rhoads, Geoffrey B., Error processing of steganographic message signals.
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  87. Rhoads, Geoffrey B., Hiding and detecting messages in media signals.
  88. Powell, Robert D.; Nitzberg, Mark, Hiding codes in input data.
  89. Powell,Robert D.; Nitzberg,Mark, Hiding codes in input data.
  90. Rhoads, Geoffrey B., Hiding encrypted messages in information carriers.
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  93. Jones, Robert L., Identification document with three dimensional image of bearer.
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  98. Powell, Robert D.; Nitzberg, Mark J., Image marking with pixel modification.
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  100. Labrec, Brian, Increasing thermal conductivity of host polymer used with laser engraving methods and compositions.
  101. Labrec, Brian C., Increasing thermal conductivity of host polymer used with laser engraving methods and compositions.
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  119. Alattar, Adnan M., Method and apparatus for encoding paper with information.
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  163. Rhoads,Geoffrey B., Methods for monitoring audio and images on the internet.
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  166. Rhoads Geoffrey B., Methods for surveying dissemination of proprietary empirical data.
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  182. Jones, Robert; Bi, Daoshen; Duggan, Charles F.; Schneck, Nelson T., Optically variable personalized indicia for identification documents.
  183. Rodriguez, Tony F.; Carr, Jonathan Scott; Rhoads, Geoffrey B., Paper-based control of computer systems.
  184. Rhoads Geoffrey B., Photographic products and methods employing embedded information.
  185. Rhoads,Geoffrey B.; Davis,Bruce L.; Evans,Douglas B., Portable devices and methods employing digital watermarking.
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  192. Rhoads, Geoffrey B., Processing data representing video and audio and methods and apparatus related thereto.
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  220. Evans, Douglas B.; Conwell, William Y., Substituting or replacing components in sound based on steganographic encoding.
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  233. Rhoads,Geoffrey B., Video steganography.
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  237. Geoffrey B. Rhoads, Watermark enabled video objects.
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  246. Rhoads, Geoffrey B., Watermarking to convey auxiliary information, and media embodying same.
  247. Rhoads, Geoffrey B., Wireless methods and devices employing plural-bit data derived from audio information.
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