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601 results about "Channel Identifier" patented technology

Method and apparatus for adapting program guides to meet subscriber criteria

A system and method for adapting program guides to meet subscriber criteria, and for providing program guide information to selected subscribers based upon subscriber criteria such as the subscriber's location within a market area is disclosed. In one embodiment, the method is applied to a system broadcasting a first signal having service channels, each of which service channels is uniquely described by a service channel identifier. The application of the method provides second program guide information describing a second set of programs only to a subset of the plurality of receiver stations that comply with at least one service criteria. The method comprises the steps of segmenting the programs into at least one service group according to the service criteria, wherein the service group comprises the second set of programs, assembling the second program guide information, and transmitting a first signal having first program guide information to the receiver stations on a first service channel and second program guide information describing the second set of programs to the receiver stations on a second service channel offset from the first service channel. Each of the receiver stations intended to receive the second program guide information stores information identifying the second service channel carrying the second program guide information. This information is used by the receiver station to receive and present the second program guide material to the subscriber.
Owner:HUGHES ELECTRONICS

Method for implementing media distribution, positioning by segmented memory and stream media system thereof

The invention discloses a method for realizing media distribution and positioning by sub-chip storage and a streaming media system thereof, a central node inputs time tag information in original code streams at definite time; the code streams with the same channel identifiers and the time tag information are named and constitute sub-chip files for carrying out the sub-chip storage; the sub-chip files are distributed to various edge nodes from the central node; the node which a user belongs to is positioned to the sub-chip file during the sub-chip storage according to a signaling; and a plurality of sub-chip files is smoothly switched by using the time tag information. As the time tag is input in the direct broadcast code streams at definite time and the sub-chip files are named by combining a channel identifier, the invention realizes the uniform storage of the sub-chip files during the creation of a direct broadcast channel; additionally, the invention adopts the seamless splicing of the adjacent sub-chip files of the time tag, thereby achieving the uniform storage of time-shifted television businesses and television program on-demand businesses, greatly reducing the requirements of the whole system on storage space and storage resources and improving the reliability and the stability of the service of the streaming media system.
Owner:ZTE CORP

Secure virtual interface

A network interface for secure virtual interface data communication includes a doorbell circuit, a processor, memory, and a bridge circuit. The doorbell circuit responds to physical I/O addresses of the host that are mapped by a memory management unit by a registration process. An application program seeking to use a channel of a virtual interface must register the virtual address of host memory where data for communication is or will be stored and register the virtual address of a page of I/O addresses. Access to the doorbell functions and to the host memory via the memory management unit are therefore denied when the requesting process identifier does not successfully compare with the process identifier for the process that performed the registrations. A password may be stored in the network interface in association with a virtual interface (VI) channel identifier and stored in association with the virtual to physical map used for VI communication. The network interface may abandon a requested or implied data communication function when passwords so not successfully compare. Methods for virtual interface (VI) communication performed by an application program may include one or more of the steps of (a) establishing a VI channel where physical I/O addresses of a network controller are secured; (b) registering host memory for use with a VI channel where physical memory addresses are secured; (c) describing blocks of host memory with reference to a memory handle; and (d) accomplishing data communication of a described block of host memory via an established VI channel where the data and controls of the VI channel are secured and the data and controls of other VI channels are secured. Security is provided against both erroneous operations and operations intentionally effected by rouge processes.
Owner:MARVELL ASIA PTE LTD
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