137 results about "Broadcast quality" patented technology

Disclosed is a system for allowing on-demand delivery of data, such as MPEG-2 compressed video data, to a subscriber from a content server. The system utilizes a managed IP network that is coupled to the one or more content servers that allows the content servers to deliver data such as video, audio, and textual data with a guaranteed quality of service that is at least as good as broadcast quality service. The managed IP network is connected to a head end or other local cable service provider where video is delivered locally to subscribers. The IP transport data is translated to MPEG transport data, multiplexed onto an MPEG transport system, digitally modulated onto an rf carrier and up-converted to a specific frequency channel. The signal is then applied to the cable for delivery to the subscriber. Upstream signaling occurs through a set top box or computer that is connected to the cable and subsequently to a digital modulator/demodulator and ISP to a managed IP network 66. Low band signals can also be transmitted from the content servers back to the set top box or computer indicating confirmation of an order. Also, control signals such as stop, rewind, fast-forward, and slow can be transmitted back to the content server to control the transmission of data from the content server to the subscriber.

Private Multimedia Network (PMN) complements, and is an improved alternative to digital videoconferencing and multimedia delivery systems. PMN's desktop and meeting room delivery system is designed to support the exponential growth of enterprise team-based initiatives. PMN provides “one-stop-shopping” for the full multimedia rubric. It delivers user-friendly control and cost/effective TV and broadcast quality videoconferencing and other multimedia services to organizations with “critical mass” campuses and building complexes. Though digital systems dominate the videoconferencing marketplace, PMN's hybrid digital/analog architecture has no digital peer in breadth or quality of service within or between campuses. The novel architecture leverages advances in analog video short-haul technology, digital long-haul technology, and telephony audio and control technology to deliver four-level multimedia services: 1) premise; 2) campus; 3) multi-site; and 4) ubiquitous (any site with ITU compatible multimedia equipment (e.g., videoconferencing) and communication links). On balance, the price/performance afforded by PMN's centralized Telco-based control and audio delivery combined with its decentralized broadcast quality video distribution raise videoconferencing and other multimedia services to a new level of ubiquity. Just as telephones and PC LANs, PMN delivers expensive Boardroom and mobile cart videoconferencing capabilities to every desktop via existing multimedia wall plates. The key phases for this invention are: Lip-synchronization across differing network communication links and protocols; Ubiquitous multimedia service; Cost/effective room and desktop deployment; Telco control and audio; Broadcast quality video; Isochronous Quality; Centralized control and distributed operation; and Interoperable architecture.

Disclosed are systems and methods for creating and distributing programming content carried by a digital streaming media to be a plurality of remote nodes located over a large geographic area to create customized broadcast quality programming at the remote nodes. At the remote nodes, a multi-window screen display simultaneously shows different programming including national programming and local programming content. The remote nodes utilize a remote channel origination device to assemble the customized programming at the remote location that can be controlled from a central location. An encapsulated IP and IP encryption system is used to transport the digital streaming media to the appropriate remote nodes. Also disclosed is a graphical user interface (“GUI”) providing a software control interface for creating and editing shows or programs that can be aired or played on a remote display device having a multi-window display. The intuitive GUI Software provides the user the ability to easily manage and assemble a series of images, animations and transitions as a single broadcast quality program to be displayed on a remote display device. Another application software system is capable of automating the production of audio narration reports. The disclosed audio concatenation engine automates the creation of audio narration using prerecorded audio segments to minimize the requirement for live, on-air personnel to record audio narration segments.

A system for sending and receiving full motion, live, full duplex video of broadcast quality over existing telephone lines comprises apparatus for converting audio/video data recorded at a first location into a stream of packets, apparatus for reconverting the stream of packets into audio/video data to be presented at a second location, and apparatus for bypassing telephone company voice switches at central offices, thereby allowing the packets to travel directly from the local telephone lines to the long distance telephone network. The packets are created at the first location and are received at the second location and, in addition to encoded audio/video data, each packet contains a start flag, an end flag, and at least data specifying the encoding algorithm by which the encoded audio/video data was encoded.

A method includes steps of indexing a media collection, searching an indexed library and browsing a set of candidate program segments. The step of indexing a media collection creates the indexed library based on a content of the media collection. The step of searching the indexed library identifies the set of candidate program segments based on a search criteria. The step of browsing the set of candidate program segments selects a segment for viewing.

A communication system is provided which allows video and audio/video transmissions over unloaded, twisted pairs of telephone wires. The system provides for automatic compensation of attenuation of a broadband video signal by measuring the attenuation of the low frequency components of the signal to determine the length of the unloaded, twisted pair through which the signal has been transmitted. This calculation is performed by comparing the attunated signal with the known signal level of transmission. Based upon the calculated length, the signal is amplified nonlinearly, since a greater loss occurs in the high frequency portions of a broadband signal than in the low frequency portions in transmission over twisted pairs of telephone wires. The signal is thereupon reconstructed. Also, the system allows transmission of a broadband frequency spectrum much wider than has heretofore been obtained. A broadband signal of at least 10.7 MHz can be transmitted over the system. The system also provides for left and right audio inputs and outputs, as well as auxiliary inputs and outputs. The transmission system can be utilized so that persons with a video camera and a personal computer can communicate with each other, transmitting full-motion, color video over unloaded, twisted pairs of telephone wires.

A method and system are disclosed for enabling full-service communications between a full-service cable modem termination system (fsCMTS) and a plurality of full-service cable modems (fsCMs) for a conventional two way hybrid fiber-coax (HFC) cable television network. Full-service communications include data, voice and video. Video includes broadcast quality MPEG-2 transport packet streams and Internet protocol media streams. A multi-channel full-service media-access-control (fsMAC) coordinates the access to the shared upstream and downstream channels. Several MAC management messages are defined to enable a multi-channel full-service MAC domain to facilitate sharing of an arbitrary number of channels and to enable packet-by-packet true seamless channel change. Multiple upstream channels can be used in various ways to best optimize the use of the spectrum for meeting the quality-of-services needed by different services.

The present invention discloses media playing terminal unit video playing quality test method. It contains A1, assigning different sequence of frames number to each video frame of media file, determining said sequence of frames number corresponded different graphic marking, overlapping said graphic marking to media file corresponded video frame; A2, using said media file as testing source transmitting to media playing terminal unit; A3, said media playing terminal unit decoding and outputting said media file code stream, A4, in turn identifying outputted graphic marking in video frame and generating corresponded frame serial number, analyzing said frame serial number, evaluating video playing quality. The present invention solves media playing terminal unit video playing volubility automatic test.

A system for sending and receiving full motion, live, full duplex video of broadcast quality, with associated audio data, over the Internet. The system comprises software that ties together audio and video packets and transmits them as a smooth continuous stream of video and audio data. The system is capable of functioning over a secure peer-to-peer backbone.

The invention discloses a live broadcast method, device and system and belongs to the field of network live broadcast. The method comprises the following steps: receiving live broadcast synthesis parameters sent by an anchor client; receiving at least two live broadcast video streams sent by the anchor client, wherein the at least two live broadcast video streams are corresponding to respective visual angles; synthesizing the at least two live broadcast video streams into a target live broadcast video stream according to the live broadcast synthesis parameters; and sending the target live broadcast video stream to at least one audience client corresponding to the anchor client. The at least two live broadcast video streams are synthesized into the same live broadcast frame by utilizing the live broadcast synthesis parameters, so that the problems of not high live broadcast quality and not stable frame in the live broadcast video stream due to repeated rotation of a camera in the live broadcast process are solved, and the effects that one live broadcast frame has different live broadcast visual angles, the live broadcast frame is more stable, and playability of outdoor live broadcast is improved are achieved.

The embodiment of the invention discloses an interacting method of a GPU (Graphics Processing Unit) and a CPU (Central Processing Unit). The method comprises the following steps of: reading initial data in the CPU; arraying initial data which are continuous logically and discontinuous in the physical space into data which are continuous logically and also continuous in the physical space according to preset program codes collaterally executed on the GPU; converting parallel data computed in the GPU into serial data; and transmitting the serial data onto the CPU. The embodiment of the invention also discloses an interacting system of the GPU and the CPU, the GPU and a video coding and decoding method. In the invention, the calculated load on the CPU is carried out on the GPU, and the parallel computing of the GPU is utilized to improve the video coding and decoding speed in a frame and reduce the occupation to CPU resources when broadcast quality high-definition video data are coded and decoded, so that the resources of the CPU can be released for other computations and operations in the system, and the reduction of system properties is avoided.

The present invention is directed to a system and method for controlling a data transmission network, and in particular, to a fiber optic broadcast quality video and audio transmission network, that can also provide customers, or users, the feature of accessing and controlling network parameters to set up and customize their own network connection and services, and where the fiber optic network may also be integrated with satellite transmission.

A method includes steps of indexing a media collection, searching an indexed library and browsing a set of candidate program segments. The step of indexing a media collection creates the indexed library based on a content of the media collection. The step of searching the indexed library identifies the set of candidate program segments based on a search criteria. The step of browsing the set of candidate program segments selects a segment for viewing.

The quality of a broadcast stream is varied responsive to changes in the utilization of forward link air interface resources. The network monitors utilization of forward link air interface resources and dynamically changes the forward link air interface resources dedicated to the broadcast stream responsive to changes in the utilization of forward link air interface resources. The quality of the broadcast stream is scaled to the allocated forward link resources. The broadcast stream may include a layered content and scaling can be achieved by varying the number of layers transmitted over the air interface. The network may notify mobile stations in advance when changes in the quality of the broadcast will take place. When the broadcast stream originates with a mobile station, the forward link air interface resources may be limited by the quality of the broadcast stream transmitted over a reverse link channel from the originating mobile station.

A system and method that integrates automated voice recognition technology and speech-to-text technology with automated translation and closed captioning technology to provide translations of “live” or “real-time” television content is disclosed. It converts speech to text, translates the converted text to other languages, and provides captions through a single device that may be installed at the broadcast facility. The device accepts broadcast quality audio, recognizes the speaker's voice, converts the audio to text, translates the text, processes the text for multiple caption outputs, and then sends multiple text streams out to caption encoders and/or other devices in the proper format. Because it automates the process, it dramatically reduces the cost and time traditionally required to package television programs for broadcast into foreign or multi-language U.S. markets.

A method for reviewing broadcast channels. The method including: capturing at least one broadcast channel at a first site at a reduced quality from its broadcast quality; receiving the at least one reduced quality broadcast channel at a second site, the second site being remote from the first site; and reviewing the at least one reduced quality broadcast channel at the second site. Preferably, the reduced quality broadcast channel is captured on a video server corresponding to an Internet address and is downloaded from the Internet via a wireless transmission to a cellular phone, PDA, or the like.

A high-performance portable microwave communication unit, consists of a directional antenna, RF transceiver and high-speed data/video processing unit for use in terrestrial point-to-point communications or as a ground station in a satellite communication system. For transportation, the unit is disassembled, folded down and stowed in two airline-checkable hard-shell cases. Each case can be equipped with shoulder straps such that it can be carried like a backpack, a set of wheels so it can be rolled, attached to a MOLLE frame so that it can be carried as a backpack and which allows attachment of accessories. The cases and their interiors have been designed to provide protection for the communication unit, while the construction of the unit itself involves novel mechanical features that allow for compact stowage as well as for rapid disassembly and assembly.

Multiple image processors, also known as a multiviewer or multiple input video wall processing is a device that allows multiple image inputs and combined them to form one or several outputs that consists of multiple images that can cross display boundaries. The invention provides a universal platform to allow multiple format input signals with unlimited expansion for number of inputs and unlimited expansion for number of outputs as well as unlimited expansion for resolutions. The different input sources can be from multimedia devices such as computers, DVD/Blu-ray players, and compressed IP streams as well as broadcast quality devices such as professional cameras or video servers. This universal platform allows the flexibility in multi-format configuration while provide real time throughput with minimal latency for video processing.

The invention provides a data live broadcast system and method which aim to solve the problem that an existing live broadcast system can cause network congestion and even network paralysis easily. The data live broadcast system comprises a live broadcast data source server and cache servers, wherein the live broadcast data source server is used as a root node, the cache servers are used as child nodes, and accordingly a tree topology structure is formed. According to the system, the live broadcast data source server is used for storing live broadcast source data, the live broadcast data source server only distributes source data which require to be subjected to live broadcast to the first level of cache servers, and thus the phenomenon that congestion and paralysis happen to the live broadcast data source server due to the fact that excessive nodes are accessed simultaneously can be avoided. Under the tree topology structure, after the cache servers receive data live broadcast requests, the cache servers can sequentially request data sources towards the previous level of cache servers in a classification mode, and therefore the problem that congestion and paralysis happen due to the fact that excessive nodes are connected into all the levels of cache servers is solved. The source data which require to be subjected to live broadcast can be provided quickly, and the live broadcast quality of the source data is improved.

Foundation frame is built through TCP/IP protocol. Under the said frame, hidden processes maintain normal teaching environment for student computers. The teaching environment provides following functions: broadcasting-quality and raised speed on screen for displaying image in real time; capturing files on students' computers through file compression; Socks5 protocol agent guarantees stability of transferring data; student's operation is monitored by memory mapping; remote commands are utilized to control computers at student side.