Thomson Licensing

Thomas Licensing

Charles Chunaming Wang

Jun Li

Yong He

Xiao-jun Ma

Zhigang Zhang

Huanqiang Zhang

Philippe Guillotel

Zhi Chen

Li Zhu

Li Zou

Xiaojun Ma

Xiao Dong Gu

Zhi Gang Zhang

Huan Qiang Zhang

Lin Xiang Cheng

A method and apparatus are described including identifying a channel that a decentralized network is using for communications and identifying a station that is a member of the decentralized network to monitor data transmission activity over the identified channel. Also described are a method and apparatus for a station to transmit data over a communication medium of a decentralized network including monitoring the communication medium, determining if the communication medium is idle, transmitting data if the communication medium is idle and if the station has a data to transmit and adjusting a slot count and a service ring configuration if the medium is busy. Further described are a method and apparatus including monitoring a communication channel used by a decentralized network, determining a number of available idle time slots between two successive frame transmissions initiated by different stations, updating a service ring, adjusting a number of stations and adjusting a slot count.

Deterministic back-off method and apparatus for peer-to-peer communications

A method and apparatus are described for gaining access to a communication medium in a contention-based network, including determining a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect one of a priority and traffic patterns. Further, a method and apparatus are described for gaining access to a communication medium in a contention-based network, including receiving a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect a priority.

Method and apparatus for media access in contention-based networks

A method and apparatus are described including transmitting data if a slot count is equal to a triggering event, selecting a new triggering event responsive to a failed data transmission and replacing the triggering event with the new triggering event.

Relaxed deterministic back-off method for medium access control

Constant-bitrate rate control is very useful for real-time video transmission. However, it is difficult to realize a good CBR rate control in an MPEG4-AVC video codec. According to the invention, an adapted &#x3c1;-domain rate control processing for real-time rate control is applied, whereby &#x3c1; is the percentage of zero amplitude transform coefficients following quantization. A couple of tables are used for mapping between the quantization parameters and &#x3c1;. A detailed analysis at transform level is carried out in order to get the slope of the relationship between the bitrate and &#x3c1;. The slope of the linear model is constrained by a look-ahead procedure with respect to the neighbor frames or blocks.

Method for controlling the encoder output bit rate in a block-based video encoder and corresponding video encoder apparatus

A method for emendation of attention trajectory in video content analysis is disclosed. The method includes steps of extracting attention area for each frame in a video sequence, each attention area of a frame selectively being a reference for the other frames, projecting the attention area of the reference to a current frame, and determining an enhanced attention area of the current frame by collecting and merging all the projected attention areas together with the original attention area of the current frame to emend the attention trajectory of the video sequence so as to make the attention trajectory smooth. Advantageously, short-life attention or noise is omitted, and the attention area is also enriched, therefore, the smooth of the attention trajectory improves subjective viewing experience of human being.

Method of emendation for attention trajectory in video content analysis

A system and a method for multimedia multicast transmission in a mobile wireless network are proposed, which can be applied in a multiple-antenna system as well as a single antenna system. The basic message and additional message are transmitted at the same time. Receivers with different capability also with different complexities are used to demodulate different message. In order to design low-complexity receiver, the signal can be demodulated noncoherently for multimedia transmission.

Method and device for multimedia multicast transmission over a wireless network

A method and apparatus are described for gaining access to a communication medium in a contention-based network, including determining a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect a priority. Further, a method and apparatus are described for gaining access to a communication medium in a contention-based network, including receiving a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmission when the slot count reaches a predetermined value and wherein said number of stations and an address queue are adjusted to reflect a priority.

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Beijing, China

Charles Chunaming Wang