| Patent application number | Description | Published |
|---|
| 20090193454 | RESTAMPING TRANSPORT STREAMS TO AVOID VERTICAL ROLLS - In one embodiment, a network device analyzes an encoded stream to identify a timing value included in a packet before a splice point. Next, the device determines a difference between identified timing value and a timing value included in a packet of the encoded segment to be spliced. In conjunction with splicing, the network device formats timing values of packets according to the determined difference, which improves play out of the spliced stream. | 07-30-2009 |
| 20090217318 | IP-BASED STREAM SPLICING WITH CONTENT-SPECIFIC SPLICE POINTS - A method and system for conditioning a media stream for splicing are disclosed. In an embodiment, content-specific splice points, which correspond to a possible playout splice point within an original media stream, are identified for both audio and video components of the original media stream. Once the audio bitstream and video bitstream splice points are identified, the audio bitstream in the vicinity of the audio bitstream splice point is packetized into IP packets containing only audio with one of the audio-containing IP packets having an IP packet boundary that corresponds to the audio bitstream splice point and the video bitstream in the vicinity of the video bitstream splice point is packetized into IP packets containing only video with one of the video-containing IP packets having an IP packet boundary that corresponds to the video bitstream splice point. The conditioned original media stream is then transmitted downstream to a splicer. | 08-27-2009 |
| 20090313652 | AD SPLICING USING RE-QUANTIZATION VARIANTS - In one embodiment an apparatus for splicing an ad into a data stream includes an ad segmenter, an ad variant generator coupled to the ad segmenter, and an ad variant selector coupled to the ad variant generator. The ad segmenter designates end portions, including beginning and ending portions, of the ad and designates an intermediate portion between the end portions. The ad variant generator generates a plurality of variants of at least one end portion. Each variant corresponds to a unique bit-rate. The ad variant selector selects at least one variant for splicing into the data stream based on a buffer level of a data stream buffer. | 12-17-2009 |
| 20100003008 | Dynamically Creating Trick Files To Hide Latency In Streaming Networks - A system and process are provided to reduce the latency associated with delivery of data for trick functions (e.g., fast-forward or rewind) in data distribution systems. In response to a request for a trick function associated with program data being streamed to a user terminal, first trick data frames for the trick function are retrieved from a first computing apparatus (e.g., a storage server) and in the meantime second trick data frames for the trick function are generated at a second computing apparatus (e.g., streaming server). Until the first trick data frames arrive from the first computing apparatus, the second computing device streams the second trick data frames to the user terminal. The second computing apparatus streams the first trick data frame to the user terminal as they arrive. A user at the user terminal experiences minimal delay in viewing a requested trick function since the second computing apparatus begins sending the trick data to the user terminal before the pre-built trick data arrives for streaming to the user terminal. The streaming server also buffers trick data frames for a current speed trick that may be used for dynamically generating trick data frames a next higher speed trick requested by the user terminal. | 01-07-2010 |
| 20100223394 | STREAM CONTROL FAILOVER UTILIZING AN ATTRIBUTE-DEPENDENT PROTECTION MECHANISM - A technique for managing the streaming of digital video content to multiple clients involves identifying an attribute of a content element that is streamed to a client and selecting a protection mechanism for the content element as a function of the attribute, wherein the protection mechanism enables streaming of the content element to the clients in the event of a resource failure. In an example, the identified attribute is an indication of the popularity of the content element (e.g., as measured by the number of active streams), such that the protection mechanism is selected as a function of the popularity of the content element. In an embodiment, protection mechanisms that offer a higher level of protection are selected for the more popular content elements and protection mechanisms that offer a lower level of protection are selected for the less popular content elements. | 09-02-2010 |
