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Xiaohan
Xiaohan Liu, Shenzhen CN
| Patent application number | Description | Published |
|---|---|---|
| 20110044455 | Method, Apparatus and System for Key Derivation - A method, an apparatus and a system for key derivation are disclosed. The method includes the following steps: a target base station) receives multiple keys derived by a source base station, where the keys correspond to cells under control of the target base station; the target base station selects a key corresponding to the target cell after knowing a target cell that a user equipment (UE) wants to access. An apparatus for key derivation and a communications system are also provided. | 02-24-2011 |
| 20110165870 | Method, Apparatus and System for Key Derivation - A method, an apparatus and a system for key derivation are disclosed. The method includes the following steps: a target base station) receives multiple keys derived by a source base station, where the keys correspond to cells under control of the target base station; the target base station selects a key corresponding to the target cell after knowing a target cell that a user equipment (UE) wants to access. An apparatus for key derivation and a communications system are also provided. | 07-07-2011 |
Xiaohan Wang, Alameda, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100083303 | System and Methods for Transmitting and Distributing Media Content - A technique for distributing high-quality, user-generated high definition (HD) video content on the web is presented. A system according to the technique may include a service provider including a user database, a catalog database, and a media library. The service provider may receive the HD video content from a user through a content submission method. A method according to the technique receives registration information for the HD video content to be shared and receives the HD video content from a user through a content submission method. The HD video content may then be further processed, such as transcoding to a streamable format using a massively parallel cloud computing platform. | 04-01-2010 |
| 20100118308 | Composite Optical Focusing Devices - The present invention is an optical system, comprising: a light source for providing light rays; a combined two or more parabolic reflectors or elliptical reflectors having inner reflecting surfaces, wherein the reflectors sharing a common focal point, and a device-under-test is disposed thereabout the focal point; wherein the collimated light rays coming into the parabolic reflector parallel to the axis of symmetry of each parabolic reflector would be directed to the focal point on the surface of the device-under-test. The reflected light rays from the device-under-test are directed by the other parabolic reflectors along the axes of symmetry of each parabolic reflector and generate information indicative of the device-under-test; wherein the reflected light rays exit the reflector; and a detector for receiving the exited light rays. | 05-13-2010 |
Xiaohan Zhu, Alviso, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080225950 | Scalable architecture for video codecs - In one embodiment, a method for parallel processing of blocks in a decoding process is provided. A plurality of blocks for a picture is received. The picture may have the plurality of blocks arranged in a first order. The blocks in the plurality of blocks may be pre-processed to determine data dependency information for blocks. In one embodiment, the blocks in the picture are all pre-processed to determine the data dependency information for every block in the picture if possible. Blocks that do not have data dependencies are then determined and sent for parallel processing in processing units. Also, blocks that still have data dependencies are not processed until the data dependency information becomes available. For example, an inter-coded block may be decoded and information for the decoded block is used to decode the intra-coded block. At this point, these blocks may be sent for processing in the processing units. | 09-18-2008 |
| 20100242014 | SYMMETRIC MULTI-PROCESSOR OPERATING SYSTEM FOR ASYMMETRIC MULTI-PROCESSOR ARCHITECTURE - A method and system for supporting multi-processing within an asymmetric processor architecture in which processors support different processor specific functionality. Instruction sets within processors having different functionalities are modified so that a portion of the functionality of these processors overlaps within a common set of instructions. Code generation for the multi-processor system (e.g., compiler, assembler, and/or linker) is performed in a manner to allow the binary code to be generated for execution on these diverse processors, and the execution of generic tasks, using the shared instructions, on any of the processors within the multiple processors. Processor specific tasks are only executed by the processors having the associated processor specific functionality. Source code directives are exemplified for aiding the compiler or assembler in properly creating binary code for the diverse processors. The invention can reduce processor computation requirements, reduce software latency, and increase system responsiveness. | 09-23-2010 |