Patent application number | Description | Published |
20110256704 | METHOD FOR MANUFACTURING A METAL GATE ELECTRODE/HIGH K DIELECTRIC GATE STACK - A method of manufacturing a metal gate/high K dielectric gate stack includes the steps of: forming an interfacial layer of SiON or SiO | 10-20-2011 |
20110263114 | METHOD FOR ETCHING MO-BASED METAL GATE STACK WITH ALUMINIUM NITRIDE BARRIER - The present application discloses a method for etching a Mo-based metal gate stack with an aluminum nitride barrier, comprising the steps of forming a SiO | 10-27-2011 |
20120003827 | METHOD FOR MANUFACTURING METAL GATE STACK STRUCTURE IN GATE-FIRST PROCESS - A method for manufacturing a metal gate stack structure in gate-first process comprises the following steps after making conventional LOCOS and STI isolations: growing an untra-thin interface layer of oxide or oxynitride on a semiconductor substrate by rapid thermal oxidation or chemical process; depositing a high dielectric constant (K) gate dielectric on the untra-thin interface oxide layer and then performing rapid thermal annealing; depositing a TiN metal gate; depositing a barrier layer of AlN or TaN; depositing a poly-silicon film and a hard mask, and performing photo-lithography and the etching of the hard mask; after photo-resist removing, etching the poly-silicon film/metal gate/high-K gate dielectric sequentially to form the metal gate stack structure. The manufacturing method of the present invention is suitable for integration of high-K dielectric/metal gate in nano-scale CMOS devices, and removes obstacles of implementing high-K/metal gate integration. | 01-05-2012 |
20120115321 | METHOD FOR REMOVING POLYMER AFTER ETCHING GATE STACK STRUCTURE OF HIGH-K GATE DIELECTRIC/METAL GATE - The present invention provides a method for removing polymer after etching a gate stack structure of high-K gate dielectric/metal gate. The method mainly comprises the following steps: 1): forming a gate stack structure of interface SiO | 05-10-2012 |
20120282748 | Method for manufacturing stack structure of PMOS device and adjusting gate work function - The present disclosure provides a method for manufacturing a gate stack structure and adjusting a gate work function for a PMOS device, comprising: growing an ultra-thin interface oxide layer or oxynitride layer on a semiconductor substrate by rapid thermal oxidation or chemical method after conventional LOCOS or STI dielectric isolation is completed; depositing high-K gate dielectric and performing rapid thermal annealing; depositing a composite metal gate; depositing a barrier metal layer; depositing a polysilicon film and a hard mask and then performing photolithography and etching the hard mask; removing photoresist and etching the polysilicon film, the barrier metal layer, the metal gate, the high-K gate dielectric, and the interface oxide layer in sequence to form a gate stack structure of polysilicon film/barrier metal layer/metal gate/high-K gate dielectric; forming spacers, source/drain implantation in a conventional manner and performing rapid thermal annealing, whereby while source/drain dopants are activated, adjusting of metal gate effective work function of the PMOS device is achieved. | 11-08-2012 |
20130078773 | Method for manufacturing CMOS FET - A method for manufacturing a CMOS FET comprises forming a first interfacial SiO | 03-28-2013 |
20150134628 | END OF RETENTION PROCESSING USING A DATABASE MANAGER SCHEDULER - End of retention processing is provided. Included is: creating, using a content manager (CM), an end of retention policy for a content in a database management system (DBMS; and creating, based on the end of retention policy, a stored procedure in the DBMS for managing the end of retention policy. | 05-14-2015 |
20150149102 | ONLINE MONITORING CIRCUIT AND METHOD OF THE SERIES COMPENSATION SPARK GAP DIVIDER RETURN CIRCUIT - The present invention provides an online monitoring circuit of the series compensation spark gap divider return circuit, said series compensation spark gap divider return circuit includes voltage equalization link and the voltage sampling link; Said voltage link includes the capacitor C which series said voltage equalization link; Said online monitoring circuit includes the voltage sampling input module, series compensation current input module and the compare module; Said sampling voltage input module after amplified the voltage of the two ends of the series capacitor C converts it into direct current signal U | 05-28-2015 |
20150233859 | IMPEDANCE DETECTION CIRCUIT, METHOD, AND INTEGRATED CIRCUIT - This document discusses, among other things, an impedance detection circuit, method, and integrated circuit, comprising a ramp-up current generation circuit and an impedance determining circuit, wherein the ramp-up current generation circuit is configured to input a ramp-up current including n breaks to a port of a device where the ramp-up current generation circuit is disposed, to which port an external device is connected, and wherein the impedance determining circuit is configured to detect an impedance of the external device in each break time period of the ramp-up current input by the ramp-up current generation circuit until the impedance of the external device is acquired by detection in the last break time period of the n breaks. | 08-20-2015 |
20150236503 | ELECTRO-STATIC DISCHARGE FILTERING CIRCUIT AND METHOD, RESET CIRCUIT, AND ELECTRONIC DEVICE - This document discusses, among other things, an electro-static discharge (EDS) filtering circuit and method, a reset circuit, and an electronic device. The ESD filtering circuit comprises a first current dividing circuit and a second current dividing circuit which respectively share a current of a first power source signal and aggregate the shared currents to form a second power source signal upon filtering, wherein a voltage drop of the first current dividing circuit is constant and the second current dividing circuit is a pure resistor element circuit. | 08-20-2015 |
Patent application number | Description | Published |
20130290697 | System and Method for Signaling Segment Encryption and Key Derivation for Adaptive Streaming - An apparatus for decoding a media stream, wherein the apparatus comprises a memory module, a processor module coupled to the memory module, wherein the memory module contains instructions that when executed by the processor cause the apparatus to perform the following: receive a media stream comprising a segment signaling information and a plurality of segments, wherein the plurality of segments comprises encoded and unencoded segments, wherein the segment signaling information comprises identification of at least two segment groups each comprising at least one segment, identify at least one segment group using the segment signaling information in the media stream, identify at least one segment decoding algorithm for the at least one segment group, identify at least one decoding key for the at least segment group, and decode each encoded segment within the at least segment group using the at least segment decoding algorithm and the at least one decoding key. | 10-31-2013 |
20130291082 | Systems and Methods for Segment Integrity and Authenticity for Adaptive Streaming - System and method embodiments are provided for segment integrity and authenticity for adaptive streaming. In an embodiment, the method includes receiving at a data processing system a segment of a media stream, determining, with the data processing system, a digest or a digital signature for the segment, and comparing, with the data processing system, the digest/digital signature to a correct digest or a correct digital signature to determine whether the segment has been modified. | 10-31-2013 |
20130347123 | MEDIA DATA PROCESSING METHOD AND APPARATUS - Embodiments of the present invention provide a media data processing method and apparatus. The media data processing method includes: obtaining each media segment in a coding representation; and performing content protection processing on at least a part of media segments in the coding representation. In the embodiments of the present invention, a media segment in a coding representation is used as a unit of content protection, and the content protection may be performed on at least a part of media segments in the coding representation, so that protection manners of media segments in the coding representation are differentiated, so as to improve reliability and flexibility of performing the content protection on an HTTP streaming media service. | 12-26-2013 |
20140020111 | Signaling and Handling Content Encryption and Rights Management in Content Transport and Delivery - An apparatus comprising a memory, a processor coupled to the memory and configured to obtain a protection description for media content comprising a plurality of content items, wherein the protection description comprises data signaling at least two protection mechanisms for at least two content items in a media content, wherein each of the at least two content items is protected by one or more of the at least two protection mechanisms, and wherein the protection mechanisms for the at least two content items are different, determine the protection mechanisms for the at least two content items from the data, and process the at least two content items according to their associated protection mechanisms. | 01-16-2014 |
20140096271 | Segment Authentication for Dynamic Adaptive Streaming - A method comprising generating a segment signature for a segment of a media content based on the segment, trusted information contained in a media presentation description (MPD), and a signature signing key, wherein the MPD describes the media content. An apparatus comprising a processor configured to compute a segment signature for a segment of a media content based on the segment, a signature signing key, and trusted information contained in a media presentation description (MPD), wherein the MPD describes the media content. | 04-03-2014 |
20140201334 | Storing and Transmitting Content for Downloading and Streaming - A method implemented by a first client device, the method comprising receiving a media presentation description (MPD) for a media content from a streaming server, receiving a plurality of segments for the media content from one or more streaming servers, and packaging the MPD and at least part of the received segments such that the packaged segments are accessible by a second client device through the packaged MPD. | 07-17-2014 |
20140304297 | Method, Server, and User Terminal for Providing and Acquiring Media Content - A method, a server, and a user terminal for providing and acquiring media content are provided. The providing method includes: receiving a file segment acquiring request sent by a user terminal, where the file segment acquiring request is generated and sent by the user terminal according to an identifier of the user terminal, and the media segment description file includes a storage address and an embedded identifier of each media file segment that is divided from media content; and providing the user terminal with a media file segment that is embedded with the identifier of the user terminal. In the technical solution of the present invention, a server no longer processes media content in real time and responds to an acquiring request of a user terminal, thereby reducing concurrent load of the server and reducing concurrent bandwidth occupied by media content distribution. | 10-09-2014 |
20140365759 | Signaling and Carriage of Protection and Usage Information for Dynamic Adaptive Streaming - A Dynamic Adaptive Streaming over Hypertext Transport Protocol (DASH) server component is disclosed. The DASH server component may comprise a memory, a processor coupled to the memory, and a transmitter coupled to the processor. The processor may be configured to generate one or more keys containing content protection information for media content, associate the keys with one or more segments of media content, store the keys in a DASH metadata track in the memory, and generate a media presentation description (MPD) specifying an association between the keys and the segments of media content. The transmitter may be configured to transmit the keys to at least one client independently of transmitting the media content and transmit the MPD to the at least one client. | 12-11-2014 |
20150032854 | SYSTEM AND METHOD FOR NETWORK-ASSISTED ADAPTIVE STREAMING - A system, method and device are configured to guarantee bandwidth to adaptive streaming clients through negotiation with a network unit to achieve better quality of services in adaptive streaming that utilizes network bandwidth conditions more accurately than based on client estimations. | 01-29-2015 |
20150032855 | SYSTEM AND METHOD FOR EFFECTIVELY CONTROLLING CLIENT BEHAVIOR IN ADAPTIVE STREAMING - The present invention teaches new solutions based on an alternative approach to controlling client behavior in adaptive streaming applications, namely, server managed adaptive streaming. in this approach, the client makes requests for streaming content and provides extra information about its behaviors, and the server verifies the information to determine if the requests can be granted. This way, even if the client is not trusted, its behaviors can be properly and effectively controlled. Moreover, all of the solutions resulting from adopting this server managed adaptive streaming approach fit into the MPEG/3GPP standards of Dynamic Adaptive Streaming over HTTP (DASH). | 01-29-2015 |
20150032901 | SYSTEM AND METHOD FOR SPATIAL ADAPTATION IN ADAPTIVE STREAMING - Systems, methods, and devices for spatial adaptation with dynamic adaptive streaming are disclosed. In an embodiment, systems, methods and devices are disclosed for signaling a spatial relationship of one or more tiles in a tiled presentation with an attribute in a media presentation description. In other embodiments, systems, methods and devices are disclosed for server-managed adaptive streaming wherein a client generates and transmits a spatial adaptation URL query parameter to the server for free-zooming or free view-angle spatial adaptation to a region of interest. | 01-29-2015 |
20150052259 | Method For Generating Media Information, Terminal, Server, and AHS System - The present invention discloses a method for generating media information, a terminal, a server, and an adaptive streaming system. Media code streams of m types of code rate, which are generated by an AHS system, are divided into h groups, and tracing codes are separately embedded into code stream segments of each group. The tracing codes embedded into the code stream segments, and code stream group information are stored in a media presentation description MPD file. In a downloading process of a terminal, tracing of an end user that downloads media data is implemented. | 02-19-2015 |
20150121484 | SYSTEM AND METHOD FOR SIGNALING AND VERIFYING URL SIGNATURES FOR BOTH URL AUTHENTICATION AND URL-BASED CONTENT ACCESS AUTHORIZATION IN ADAPTIVE STREAMING - Signaling and verifying URL signatures for accessing URL addressable content in adaptive streaming. A plurality of URL authentication and URL authorization descriptors are provided for a plurality of URLs, wherein each URL authentication descriptor comprises information for verification key acquisition and for accessing an authentication tag for authenticating a given URL in the plurality of URLs according to an associated URL authentication scheme. Each URL authorization descriptor is for verification key acquisition and for accessing an authorization tag for authorizing access to content addressable by a given URL in the plurality of URLs according to an associated URL authentication scheme. A plurality of URL authentication and URL authorization descriptors for the plurality of URLs are communicated and each descriptor is verified in the communicated plurality of URL authentication and URL authorization descriptors for its given URL in the plurality of URLs according to its associated scheme. | 04-30-2015 |
20150195259 | System and Method for Signaling Segment Encryption and Key Derivation for Adaptive Streaming - An apparatus for decoding a media stream, wherein the apparatus comprises a memory module, a processor module coupled to the memory module, wherein the memory module contains instructions that when executed by the processor cause the apparatus to perform the following: receive a media stream comprising a segment signaling information and a plurality of segments, wherein the plurality of segments comprises encoded and unencoded segments, wherein the segment signaling information comprises identification of at least two segment groups each comprising at least one segment, identify at least one segment group using the segment signaling information in the media stream, identify at least one segment decoding algorithm for the at least one segment group, identify at least one decoding key for the at least segment group, and decode each encoded segment within the at least segment group using the at least segment decoding algorithm and the at least one decoding key. | 07-09-2015 |
20150200944 | CLIENT BEHAVIOR CONTROL IN ADAPTIVE STREAMING FILE - A computer-implemented method for controlling adaptive streaming media access includes requesting a first portion of media content from a content server and requesting authorization corresponding to a second portion of media content from an authorization server. The method further includes submitting evidence to the authorization server that the first portion of media content has been received by a client device and receiving a representation of authorization to access the second portion of media content in response to the evidence complying with a requirement. The method also includes requesting the second portion of media content from the content server, presenting the representation of authorization to the content server, and receiving the second portion of media content in response to the representation of authorization being accepted by the content server. The method can effectively control client behavior to prevent the client from skipping past required media content, such as a commercial advertisement. | 07-16-2015 |
20150271179 | SYSTEM AND METHOD FOR PARTIAL URL SIGNING WITH APPLICATIONS TO DYNAMIC ADAPTIVE STREAMING - A partial URL signing scheme for controlling access to content provided in adaptive streaming such as DASH is disclosed herein. Partial URL signing and verifying algorithms act as extensions to existing URL/URI signing techniques (e.g., IETF URI Signing). Partially signed URLs are signaled in an MPD and may take the form of a prefix, a suffix, or a substring of a URL. Individual segments of the content are requested by the client using URLs constructed based on a URL segment template with partial URL signing information provided as a query parameter for verification. | 09-24-2015 |