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| Number | Title | Issue Date |
| 7817207 | Image signal processing device An image signal processing device, which uses a horizontal synchronizing signal detector to find a frequency (period) of an original horizontal synchronizing signal from an external input horizontal synchronizing signal and provide an internal reference horizontal s... | 10/19/2010 |
| 7415718 | Receiving and processing vertical blanking interval data A system and method for receiving, processing, and storing electronic data transmitted in the vertical blanking interval of a video signal. The system provides a flexible mechanism for reading electronic data from video signals including those in National Television... | 08/19/2008 |
| 7368956 | Data slicer with a source-degeneration structure A data slicer with a source-degeneration structure is described. In particular, this invention can be implemented in a FM demodulation system. It located at the end of the demodulator. The data slicer can slice a signal transmitted through air and demodulates the sa... | 05/06/2008 |
| 7319468 | Image display apparatus An image display apparatus for displaying a series of consecutive output images which are based on a series of consecutive input images, with the series of consecutive input images including a first image and a second image, is arranged to split the images of the se... | 01/15/2008 |
| 7309018 | Semiconductor integrated circuit device and noncontact IC card A semiconductor integrated circuit includes a demodulating circuit, a plurality of sampling circuits each capable of sampling output signals of the demodulating circuit, a plurality of detection circuits capable of detecting headers of output signals of the sampling... | 12/18/2007 |
| 7292610 | Multiplexed data producing apparatus, encoded data reproducing apparatus, clock conversion apparatus, encoded data recording medium, encoded data transmission medium, multiplexed data producing method, encoded data reproducing method, and clock conversion method A multiplexed data producing apparatus which multiplexes N (integer) pieces of object data in which one of video data, audio data, and digital data is multiplexed to produce one piece of multiplexed data comprises a temporal storage means for temporarily storing the... | 11/06/2007 |
| 7193942 | Phase difference correction apparatus and data reproduction apparatus including data header detection apparatus It is an object of the present invention to provide a phase difference correction apparatus and a data reproduction apparatus including a data header detection apparatus that can synchronize the phase between a clock for reproducing data and an optimum sampling poin... | 03/20/2007 |
| 7142888 | Radio communication method, base station and mobile station The object of the present invention is to improve the accuracy of channel estimation and increase downlink capacity when a base station transmits an individual channel using directional beams. The base station 10 according to the present invention comprises a... | 11/28/2006 |
| 7110041 | Teletext data separation apparatus A teletext data separation apparatus has a slice level generating circuit including a slice timing control circuit, a control register, an adder and a divider. The slice timing control circuit generates a timing signal for sampling. The control register carries out ... | 09/19/2006 |
| 7102689 | Systems and methods for decoding teletext messages A system and method for efficiently detecting and decoding valid teletext message sequences is provided. A system is provided that includes a correlator, a sine wave generator, two time window generators, a phase detector, a framing code search engine, and a match f... | 09/05/2006 |
| 7055752 | IC card A state control circuit gives an inactive state control signal to a CPU and an active state control signal to a data transmission circuit. In response to this, the CPU goes into the halt state and the data transmission circuit goes into the receive state. When recei... | 06/06/2006 |
| 7046298 | Data signal extraction apparatus This invention provides a data signal extraction apparatus that accurately extracts data from a data signal that is serially transmitted even when phase shift or the like occurs. According to this apparatus, a phase shift amount calculation circuit 13 calcula... | 05/16/2006 |
| 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 |
| 6831702 | Method of and apparatus for identifying a signal transmitting source A method of and apparatus for identifying a signal transmitting source detects a switching of a signal on the reception side thereby to prevent a transmission error from occurring when a signal is switched. The apparatus for identifying a signal transmitting source ... | 12/14/2004 |
| 6778170 | Generating high quality images in a display unit without being affected by error conditions in synchronization signals contained in display signals Displaying the images encoded in a display signal which also contains synchronization signals and display enable (DE) signal. The DE signal indicates the time points at which the display data portion of the display signal contains active pixel data elements represen... | 08/17/2004 |
| 6778607 | Method and apparatus for multi-rate encoding of video sequences A method and apparatus for multi-rate encoding of video sequences. The input data stream is received at a first bit rate. A domain transformation is performed on the input data and the transformed data is encoded into a series of output data streams each with a diff... | 08/17/2004 |
| 6775842 | Method and arrangement for transmitting and receiving encoded images TeleWeb services are currently being developed, in which HTML-encoded images are transmitted in the vertical blanking interval of a conventional analog television signal. For special applications, such as subtitling and targeted advertising, the relevant TeleWeb ima... | 08/10/2004 |
| 6744815 | Method for synchronizing audio and video streams In a combined audio and video encoding system, the encoding system receiving a stream of video samples and a stream of audio samples, the encoding system producing an encoded video stream from the video samples and an encoded audio stream from the audio samples, a m... | 06/01/2004 |
| 6738506 | Image processing system for multi-beam inspection An image processing system for use in semiconductor wafer inspection comprises a multiplicity of self-contained image processors for independently performing image cross-correlation and defect detection. The system may also comprise an image normalization engine for... | 05/18/2004 |
| 6678333 | Method of and apparatus for transmitting digital data A method of transmitting digital data, which comprises the steps of obtaining first and second 8-bit word sequence data respectively based on luminance signal information data and chrominance signal information data which constitute a digital video signal... | 01/13/2004 |
| 6642966 | Subliminally embedded keys in video for synchronization A data file containing metadata and/or control data is synchronized with associated audio/video data by subliminally embedding a key in a frame of the audio/video. The key indicates the location of the data file and a time after the embedded frame in whic... | 11/04/2003 |
| 6516005 | Apparatus and method for data decoding The object of this invention is to realize the correct and prompt synchronization of data in decoding and reproducing multiplexed coded data multiplexed with a plurality of media coded data in the unit of packet without regard to the configuration or char... | 02/04/2003 |
| 6429902 | Method and apparatus for audio and video end-to-end synchronization A method and apparatus for synchronization of an audio/visual bitstream is transmitted by an encoder and received by a decoder by employing duplication or elimination of audio samples and video pixels. The invention enables clock synchronization between t... | 08/06/2002 |
| 6175391 | Digital TV receiver Digital TV receiver including an antenna, a tuner for synchronizing one of a plurality of digital TV signals received at the antenna, the digital TV signal having data streams, and each data stream having a plurality of symbols, a comparing unit for compa... | 01/16/2001 |
| 6104754 | Moving picture coding and/or decoding systems, and variable-length coding and/or decoding system A coding and/or decoding system includes: a code-word table for storing therein a plurality of code words, which are capable of being decoded both in forward and backward directions and which are formed so that delimiters of the code words are capable of ... | 08/15/2000 |
| 6041067 | Device for synchronizing data processing A device for synchronizing data processing, which receives input data comprising a plurality of data blocks comprising plural data sequences, and data block boundary detecting means; reference time detecting means for detecting reference time information ... | 03/21/2000 |
| 6018376 | Synchronous reproduction apparatus A synchronous reproduction apparatus for synchronously reproducing a video signal and an audio signal, receives a multiplexed bit stream in which the following data are packeted: video encoded data obtained by encoding video frames, each frame being a fun... | 01/25/2000 |
| 6018367 | Frame display dilation in video decoding A method and apparatus in a computer system for decoding and displaying video frames. An estimated number of intraframes which can be decoded in a current interframe run is determined. Based upon the estimated number of intraframes, determining an adjuste... | 01/25/2000 |
| 5933458 | Circuit for processing asynchronous signals having periodic synchronization bursts A circuit for restoring bits transmitted by an asynchronous signal includes a first comparator for comparing the level of the asynchronous signal with a first threshold adjusted as a function of the output of the first comparator during synchronization bu... | 08/03/1999 |
| 5883924 | Method and apparatus for PCR jitter measurement in an MPEG-2 transport stream using sliding window A method and a test instrument are provided for measuring program clock reference (PCR) jitter in a data stream, such as an MPEG-2 transport stream. The test instrument includes a line interface circuit for receiving the data stream, a digital computer fo... | 03/16/1999 |
| 5838382 | Method and apparatus for optimizing starting point for run-in clock recovery A hardware system is programmed with a vertical blanking interval (VBI) scan line run-in clock recovery function, preferably noise tolerant that optimizes the starting point for recovering the leading run-in clock of a VBI scan line by maintaining at leas... | 11/17/1998 |
| 5831679 | Network for retrieval and video transmission of information Signal processors for permitting the transparent, simultaneous transmission and reception of a volume of information in the video bandwidth is disclosed. The volume of data is selected in response to receiving a signal at a transmitter site. The signal pr... | 11/03/1998 |
| 5802311 | Using adaptive redundant packet retrieval to improve reliability in a unidirectional data broadcasting system Transmitting data includes grouping the data into one or more packets, constructing a segment of data packets, and transmitting the segment more than once. Control information indicating that the segment is about to commence may be transmitted prior to tr... | 09/01/1998 |
| 5774497 | Method and apparatus for PCR jitter measurement in an MPEG-2 transport stream A method and a test instrument are provided for measuring program clock reference (PCR) jitter in a data stream, such as an MPEG-2 transport stream. The test instrument includes a line interface circuit for receiving the data stream, a digital computer fo... | 06/30/1998 |
| 5734835 | Inexpensive world wide web terminal appliance using disk synchronized with raster refresh for storage of displayed pages A World Wide Web terminal appliance utilizes a disk drive for local storage of Web pages previously downloaded and rendered for display during the course of a Web surfing session. The disk drive rotates at a rate substantially in synchronization with a di... | 03/31/1998 |
| 5675355 | Automated coherent clock synthesis for matrix display To interface a video/graphic controller, which produces conventional, ana video output signals, suitable mostly for CRT type displays, to a matrix display, one of the video output signals, for example the horizontal sync signal, is encoded with the clock... | 10/07/1997 |
| 5652749 | Apparatus and method for segmentation and time synchronization of the transmission of a multiple program multimedia data stream Method and apparatus are provided for segmenting a multiple program multimedia digital data stream for transmission over a distribution communications network. Each program multimedia digital data stream includes sequential transport system (TS) packets w... | 07/29/1997 |
| 5640388 | Method and apparatus for removing jitter and correcting timestamps in a packet stream In a system that transmits packets containing timestamps and information from a transmission site to a reception site at a transmission bit rate the packets may experience jitter, i.e. variable delay, during transmission. In such a case, the packets are t... | 06/17/1997 |
| 5625418 | Method and arrangement for inserting frame markers in data for transmission and for retrieving the data with the aid of such frame markers For the preparation of data such as digitized television channel signals or television channel bundles, useful data are periodically replaced by a frame marker (F) in at least one of N parallel partial data streams of different bit significance. For this ... | 04/29/1997 |
| 5596372 | Video signal data and composite synchronization extraction circuit for on-screen display A composite synchronization extraction circuit is particularly suited for receiving composite video signals containing closed captioning data in raster scan line 21 by means of a signal CMOS integrated circuit device. A dual mode voltage clamp is realized... | 01/21/1997 |
