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| Number | Title | Issue Date |
| 7054463 | Data encoding using frail watermarks Image, video, or audio data is encoded with both a frail and a robust watermark. The two watermarks respond differently to different forms of processing (e.g., copying the object may render the frail watermark unreadable), permitting an original object to be disting... | 05/30/2006 |
| 6947060 | Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance... | 09/20/2005 |
| 6944298 | Steganographic encoding and decoding of auxiliary codes in media signals One aspect of the invention is a method of decoding an auxiliary code embedded in an audio signal. The method performs a statistical decoding of a multibit auxiliary code embedded in an audio signal. The auxiliary code has been repetitively embedded in the audio sig... | 09/13/2005 |
| 6927802 | TV receiver with individually programmable SAPchannel A video signal processor is used to receive programs in the form of a composite video signal which incorporates a video broadcast channel, a main audio channel and an additional audio channel. The main audio channel may carry a standard audio track for the program w... | 08/09/2005 |
| 6917691 | Substituting information based on watermark-enable linking OLE-like principles are implemented using watermark data in digital objects in order to effect object linking or embedding. In one embodiment, a photocopier scans an original paper document to produce image data. This image data is analyzed for the presence of water... | 07/12/2005 |
| 6829018 | Three-dimensional sound creation assisted by visual information A sound imaging system and method for generating multi-channel audio data from an audio/video signal having an audio component and a video component. The system comprises: a system for associating sound sources within the audio component to video objects within the ... | 12/07/2004 |
| 6829017 | Specifying a point of origin of a sound for audio effects using displayed visual information from a motion picture Displaying visual information from a motion picture in a visual field within a designated extent of a related aural field supports editing of a spatial audio effect for the motion picture. The extent of a related aural field also is displayed. Information specifying... | 12/07/2004 |
| 6191822 | Method of and apparatus for separating audio and video data from a combined audio/video stream of data A separator circuit receives a stream of data including both audio and video components. The separator circuit separates the audio and video components for transmission to appropriate devices. In the preferred embodiment, the separator circuit is part of ... | 02/20/2001 |
| 6122380 | Apparatus and method of providing stereo television audio signals The present invention is a method and apparatus for providing stereo audio signals is disclosed. The circuit for providing stereo audio signals comprises an interface circuit coupled to receive an audio signal. The interface circuit has an analog-to-digit... | 09/19/2000 |
| 4847690 | Interleaved video system, method and apparatus An improved system, apparatus and method are disclosed for interleaving selected video fields of multiple displayable programs to facilitate viewer selection of which programs to display. Selected video fields are stored and continuously displayed until a... | 07/11/1989 |
| 4398216 | Multiple signal transmission method and system, particularly for television A method and system for scrambling a plurality of input signals for secure transmission thereof, as well as various methods and systems for television transmission, are disclosed. The disclosed scrambling technique, in one form, includes modulating an in-... | 08/09/1983 |
| 3932698 | Multiplex signal transmission system A multiplex signal transmission system in which a plurality of information signals, having respectively arbitrary time durations and being arranged in time-serial form, are sequentially divided into a plurality of signal portions by a predetermined time p... | 01/13/1976 |
