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| Number | Title | Issue Date |
| 7095782 | Method and apparatus for streaming scalable video A system and method are disclosed for streaming scalable video data over a variable-bandwidth network such as a packet-based one. In other words, the number of bits (for FGS) or sub-layers (for discrete multi-layer scalability) is chosen to be transmitted for each e... | 08/22/2006 |
| 6970508 | Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks It is possible to produce a decoded image with a high image quality from data of the lowermost hierarchy obtained during hierarchical coding operation. An image of a first hierarchy equal to an original image is successively thinned in thinning units so that an imag... | 11/29/2005 |
| 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 |
| 6940905 | Double-loop motion-compensation fine granular scalability A video coding technique having motion compensation within a fine granular scalable coded enhancement layer. In one embodiment, the video coding technique involves a two-loop prediction-based enhancement layer including non-motion-predicted enhancement layer I- and ... | 09/06/2005 |
| 6499060 | Media coding for loss recovery with remotely predicted data units An improved loss recovery method for coding streaming media classifies each data unit in the media stream as an independent data unit (I unit), a remotely predicted unit (R unit) or a predicted data unit (P unit). Each of these units is organized into ind... | 12/24/2002 |
| 6490627 | Method and apparatus that provides a scalable media delivery system The present invention provides an apparatus and method for encoding, storing, transmitting and decoding multimedia information in the form of scalable, streamed digital data. A base stream containing basic informational content and subsequent streams cont... | 12/03/2002 |
| 6377707 | Image processing system An image processing system is adapted to display pixel data for a specified small area on a screen. The system decodes compressed picture data represented in terms of coded differential data, and includes a plurality of decoding sections operating at a ti... | 04/23/2002 |
| 6301300 | Method and apparatus for efficiently coding and decoding sparse images An image is coded by counting runs of non-background picture elements, and counting consecutive scanning lines having only background picture elements. Consecutive scanning lines of this type are coded as a single command and value, giving the number of s... | 10/09/2001 |
| 5727084 | Method and system for compressing a pixel map signal using block overlap A pixel map signal is separated into block signals, each representing pixels in a pixel map block (420) in a pixel map (410). The blocks signals each contain an overlap component having pixel values representing pixels contained both by the corresponding ... | 03/10/1998 |
| 5555546 | Apparatus for decoding a DPCM encoded signal A voice decoding apparatus of an adaptive PCM coding system in which an auxiliary controller is provided between a controller and a prediction coefficient holder. The controller receives a voice activity detection flag b separated from a received demodula... | 09/10/1996 |
| 5528629 | Method and device for coding an analog signal having a repetitive nature utilizing over sampling to simplify coding Speech signals coded according to the principle of high-resolution long-term prediction (HLTP) have a high accuracy due to the high-resolution which causes a high complexity. The ordinary LTP method is improved by use of oversampling and determining subse... | 06/18/1996 |
| 5220410 | Method and apparaus for decoding encoded video data Method and apparatus within a multimedia system for digitally decoding video pixel data. The pixel data is decoded to 24 bits per pixel from a compressed 8 bits per pixel format. The compressed pixel data is deformatted into its separate luminance and chr... | 06/15/1993 |
| 5164963 | Coding for digital transmission Digital signals, such as digitized television signals, are subjected to a source coding step followed by a channel mapping step. The source coding step causes the television signal to be represented by two or more data streams while, in the channel mappin... | 11/17/1992 |
| 5103307 | Interframe predictive coding/decoding system for varying interval between independent frames An efficient coding and decoding system is provided for a moving picture signal having independent and dependent frames. An interval between independent frames is varied in accordance with frame difference or amount of coded data. Predictive error signals... | 04/07/1992 |
| 4914745 | Method of correcting image errors A method for correcting image errors in the transmission of DPCM coded image signals provides that an error trail recognition is carried out at the receiving end and that the adulterated image signal values are replaced by already received and intermediat... | 04/03/1990 |
| 4860313 | Adaptive differential pulse code modulation (ADPCM) systems Apparatus and technique for ADPCM transmission of voiceband data at rates up to and including 9600 bits/s via an ADPCM system comprising an ADPCM transmitter receiving PCM encoded signals at an 8 KHz sampling rate and being operative to transmit data at a... | 08/22/1989 |
| 4807032 | Method of correcting image errors A method of correcting image errors in the transmission of difference pulse code modulated (DPCM) coded image signals, in which image signal values of only a small number of image lines are intermediately stored at the receiving end, provides an error tra... | 02/21/1989 |
| 4759038 | PCM transmission system A PCM difference data is obtained from an original data, and an absolute data having a lower bit number than the original data is obtained at every data block, each data block comprising a plurality of the difference data. The transmission data includes t... | 07/19/1988 |
| 4685115 | Apparatus for transmitting digital signals The apparatus uses at least data in the straight PCM mode and data in the differential PCM mode of second or higher orders as data based upon a sampling value of input signals, and detects and compares maximum absolute values of data of these modes. Here,... | 08/04/1987 |
| 4661846 | Apparatus for detecting a movement of a digital television signal Upon execution of the movement detection by way of a gradient method, the leftward and rightward sampling differences ƊEL and ƊER at a change extremal value point are used to detect the respective movements in the vertical and horizontal directions. The... | 04/28/1987 |
| 4569058 | Transmission system A transmission system wherein PCM code words are converted into DPCM code words at the transmit side and are reconverted into PCM code words at the receive side. A DPCM coder comprising a respective quantizer for variable-length code words, a quantizer fo... | 02/04/1986 |
