199 results about "MPEG transport stream" patented technology

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.

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.

A transport stream recording device, method thereof, transport stream reproduction device, method thereof, and recording medium for efficiently recording and reproducing transport streams. A source packet having a four byte TP_extra_Header attached to a 188 byte transport packet is generated, 32 source packets of 192 bytes each are collected, and aligned units generated equivalent to a three sector portion of data (6144 bytes) are recorded or reproduced on the recording medium.

An apparatus, system, and method is directed to transcoding broadcast content, such as in a DVB, ATSC, and MPEG based network, to secure content suitable for an Internet Protocol (IP) based network. In one embodiment, a single multifunctional convergence appliance is employed to enable such transcoding actions as encryption, encoding, and / or encapsulation. For example, in one embodiment, an MPEG transport stream associated with the broadcast content may be transcoded to an IP-based transport stream. In addition, the transport stream may be decrypted, transrated to another rate, and re-encrypted using a different control word for re-encrypting, but a same service key to encrypt the different control word. The system is also enabled to transcode content formatted for the IP-based network to a content format suitable for the broadcast network.

A method and apparatus for splicing programs in the MPEG domain, wherein program data is carried in MPEG transport streams (TS) of data packets. The data packets carry application data, e.g. video and audio data, and a header provided with control data. According to the invention control data objects are established for each data packet for storing time references and data packet status information. The control data objects are queued in different queues dependent on the data packet status or on the status of a group of data packets. Control data objects associated to data packets to be output in an output stream of data packets are selected from the queues, whereupon selected control objects are assembled to a program of associated data packets of different kinds of data. Finally, data packets associated to said selected and assembled control data objects are assembled to an output stream of data packets.

Haptic information in a series of frames of a media file is identified and time stamps corresponding thereto are determined in accordance with information embedded in a tag either preceding or appending the media file. The haptic effect information is automatically synchronized to the media file based on the information in one or more frames of the tag, whereby an actuator outputs the defined haptic effects in the tag in a manner synchronized with corresponding audio and / or video content of the media file.

A multi wide area network (WAN) media content router, remotely controlled, and located from client reception stations, that enables video stream and multimedia content reception from terrestrial, satellite, internet protocol (IP) sources, 3G, and 4G. The router receives a plurality of direct transport streams from these different transmission media types without compression and routes these signals based upon predetermined protocol. The router receives multiple signals, discerns among the signals of different transmission media types, assesses the quality of the signals received, and delivers the highest quality signal to several multiplexed channels as an output in the form of a transport stream or packet data to a plurality of clients.

In a subscriber television system with a host terminal, the present invention allows the identification of the individual packets from two separate MPEG transport streams that have been multiplexed together for decoding by a single external conditional access or point-of-deployment (POD) module. The decoding of individual packets from two separate MPEG transport streams supports the use of multiple tuner host terminals for such functions as picture-in-picture (PIP) program viewing and the viewing of one program while recording a second program.

A representation of a video sequence having a first data stream comprising first data portions, the first data portions comprising first timing information and a second data stream, the second data stream comprising a second data portion having second timing information, may be derived. association information is associated to a second data portion of the second data stream, the association information indicating a predetermined first data portion of the first data stream. A transport stream comprising the first and the second data stream as the representation of the video sequence is generated.

A data processing system comprising: a host computing device supporting an operating system and a network protocol stack, the network protocol stack being operable to support one or more transport streams by performing transport stream protocol processing of data packets received over the streams; a network interface device arranged to couple the host computing device to a network and operable to receive data packets over a transport stream supported by the network protocol stack; and a message engine configured to perform upper layer protocol processing; wherein the network interface device is configured to, on receiving a data packet over one of a predetermined set of transport streams, pass the payload data of the data packet to the message engine and the message engine is configured to, in response to receiving the payload data, identify and process any upper layer messages in the payload data in accordance with the upper layer protocol.

In a DVD recording / playback system, a set top box STB receives an MPEG transport stream constituted by a plurality of transport packets, and a formatter extracts support information indicating if management information included in the transport packets includes predetermined items. A disc drive that records data on a recording medium having a management area and data area records the support information in the management area.

A representation of an audiovisual asset is obtained and is processed to obtain at least one normal playback video elementary stream, (optionally, at least one audio elementary stream), and at least one trick mode video elementary stream. A transport stream is formed from the at least one normal playback video elementary stream, the at least one audio elementary stream (where present), and the at least one trick mode video elementary stream, with the at least one trick mode video elementary stream encapsulated in the transport stream. Streaming of the transport stream within a network is facilitated, for example, to a VOD server (for de-encapsulation), and in some approaches, to a set-top box.

In a digital network that includes a plurality of devices, which include multiple devices that transmit transport streams, a system and method are provided for discovering and mapping the transport streams and the plurality of devices included in the digital network. One such method sends a transport stream map request to a plurality of network devices. The network devices include a plurality of network transport stream sources and a plurality of network transport stream handlers. The method receives a plurality of replies to the transport stream map request. Each reply includes information associated with the respective network device. The method generates a transport stream map based on the received replies. The transport stream map represents a flow of transport streams among the plurality of network devices.

An automatic test data generating apparatus for automatically generating test data based on the input items of a user in order to test a digital TV application software environment (DASE) system and a method therefor. The automatic test data generating apparatus includes a database for storing at least information on raw data and the MPEG transport stream standard and a test data generator for generating test data corresponding to the input items of the user based on the input items of the user and information on the raw data and the MPEG transport stream standard. Accordingly, the time and expenses spent on generating test data for testing the DASE system are reduced and those who do not have special knowledge can generate the test data.

There is provided a method for encrypting a data stream using multiple algorithms. In one embodiment, a first portion of the data stream is encrypted with a first algorithm utilizing a first key to generate a first encrypted portion. The first algorithm can be, for example, a Triple Data Encryption Algorithm (TDEA). Data indicating the first algorithm and the first key is then transmitted. Then, the first encrypted portion of the data stream is transmitted. Thereafter, a second portion of the data stream is encrypted with a second algorithm utilizing a second key to generate a second encrypted portion. The second algorithm can be, for example, a Single Data Encryption Algorithm (SDEA). Next, data indicating the second algorithm and the second key is transmitted. Thereafter, the first encrypted portion of the data stream is transmitted.