Patent application number | Description | Published |
20090074383 | Video processing system - The present invention is directed to a system for demultiplexing video signals that have been combined using a time division multiplexing approach. The system includes synchronizers, parsers, demultiplexers, and an input buffer. Each demultiplexer within the system includes a header detect module, a slot map module, a frame sync module and a packet accept module. The method includes the steps of receiving an input stream that contains data packets for more than one program channel that have been combined in which packet identification (PID) information is used and a time division multiplexing scheme, such as transport stream multiplexing format (TSMF) is used. The PID and slot location for each packet is analyzed. Based on the PID and slot location a packet is either accepted or rejected. | 03-19-2009 |
20090150923 | Packetization of non-MPEG stream data in systems using advanced multi-stream POD interface - Aspects of the present invention may be found in one or more systems and/or methods to encapsulate or packetize non-MPEG and MPEG data. The encapsulation or packetization allows both the non-MPEG and MPEG data to be utilized by a set-top-box that conforms or complies with the OpenCable™ Advanced Multi-Stream POD Interface Specification and/or the OpenCable™ Multi-Stream CableCARD Interface Specification. In one embodiment, a method of processing video data, by a set-top-box that is communicatively coupled to a POD card, comprises receiving video data from a provider, first packetizing the video data using a first header to generate a first packet, wherein the first header comprises a first indicator. In one embodiment, a system for providing MPEG and non-MPEG video to a subscriber comprises a circuitry and a POD card capable of receiving, processing, and facilitating the display of non-MPEG and MPEG data. | 06-11-2009 |
20090190656 | Television Functionality on a Chip - A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is disclosed. A TVOC includes the functionality necessary to receive and display television signals in a variety of input and output formats. A TVOC can be used in set-top boxes for cable and satellite television, or directly within a television. All functionality provided can be provided on a single integrated circuit. TVOC includes a data transport module, an IF demodulator, a digital audio engine, an analog audio engine, a digital video engine, and an analog video engine. The TVOC also includes three sets of interfaces including output interfaces, control interfaces and ancillary interfaces. Further features and embodiments provide enhanced functionality and increased efficiencies. | 07-30-2009 |
20090245285 | Method for Data Packet Substitution - A system and method for substituting data packets into a data stream, is provided. In one embodiment, the data stream is a video data stream. The system includes packet buffers, a multiplexer, a packet substitution controller, a direct memory access (DMA) engine and a link list buffer controller. A method is also provided for substituting data packets - containing information of the same or different type—into a video data stream at variable rates using a selection mechanism driven by link list buffer control. | 10-01-2009 |
20100103195 | VIDEO, AUDIO AND GRAPHICS DECODE, COMPOSITE AND DISPLAY SYSTEM - A video, audio and graphics system uses multiple transport processors to receive in-band and out-of-band MPEG Transport streams, to perform PID and section filtering as well as DVB and DES decryption and to de-multiplex them. The system processes the PES into digital audio, MPEG video and message data. The system is capable of decoding multiple MPEG SLICEs concurrently. Graphics windows are blended in parallel, and blended with video using alpha blending. During graphics processing, a single-port SRAM is used equivalently as a dual-port SRAM. The video may include both analog video, e.g., NTSC/PAL/SECAM/S-video, and digital video, e.g., MPEG-2 video in SDTV or HDTV format. The system has a reduced memory mode in which video images are reduced in half in horizontal direction only during decoding. The system is capable of receiving and processing digital audio signals such as MPEG Layer 1 and Layer 2 audio and Dolby AC-3 audio, as well as PCM audio signals. The system includes a memory controller. The system includes a system bridge controller to interface a CPU with devices internal to the system as well as peripheral devices including PCI devices and I/O devices such as RAM, ROM and flash memory devices. The system is capable of displaying video and graphics in both the high definition (HD) mode and the standard definition (SD) mode. The system may output an HDTV video while converting the HDTV video and providing as another output having an SDTV format or another HDTV format. | 04-29-2010 |
20120147974 | Television Functionality on a Chip - A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is disclosed. A TVOC includes the functionality necessary to receive and display television signals in a variety of input and output formats. A TVOC can be used in set-top boxes for cable and satellite television, or directly within a television. All functionality provided can be provided on a single integrated circuit. TVOC includes a data transport module, an IF demodulator, a digital audio engine, an analog audio engine, a digital video engine, and an analog video engine. The TVOC also includes three sets of interfaces including output interfaces, control interfaces and ancillary interfaces. Further features and embodiments provide enhanced functionality and increased efficiencies. | 06-14-2012 |
20130308927 | APPARATUS AND METHOD OF SEAMLESS SWITCHING BETWEEN A LIVE DTV DECODING AND A PVR PLAYBACK - Methods and apparatus for switching between a live video decoding and a recorded playback in a digital video and recording system. A received video data stream is transmitted to a first-in first-out video decoder buffer without first looping the video data stream through a playback buffer. The video data stream is transmitted from the video decoder buffer to a video decoder. If a “pause” command is received, the video data stream is transmitted to a first-in first-out playback buffer, while continuing to transmit the video data stream to the video decoder buffer. Transmission of the video data stream to the video decoder buffer is halted when the video decoder buffer fills up. The last byte of the video data stream that was transmitted to the video decoder buffer is marked. If a “play” command is received, the video data stored in the video decoder buffer is transmitted to the video decoder. The video data stored in the playback buffer is transmitted to the video decoder buffer starting at a point immediately after the data element that was marked previously. | 11-21-2013 |
20140181985 | Content Specific Data Scrambling - An electronic device may include multiple modules that share access to a common memory. The electronic device may include content access logic that selective allows a module to access target data in the memory. When writing data into the memory, the content access logic may determine an access restriction associated with the write data, where the access restriction specifies one or more modules that can access the write data. The content access logic may scramble the write date using an access key, and configure the access key such that only authorized modules can use the access key when retrieving data from the memory. The content access logic may then store the scrambled data in the memory. | 06-26-2014 |