Samsung Electronics Co., Ltd.

Harkirat Singh

Chiu Ngo

Huai-Rong Shao

Xiangping Qin

Su Khiong Yong

Ilju Na

Julan Hsu

Pengfei Xia

Jae Min Lee

Jae-min Lee

Seung-Hwan Kim

Seung-kwon Park

Il-ju Na

Ju-Lan Hsu

Bong-hwan Cho

Huaning Niu

Lu Qian

Jae-Min Lee

Su-Khiong Yong

Seung-Kwon Park

Luke Qian

Ju-Lau Hsu

Chin Ngo

Chiu-Yeung Ngo

Il-Ju Na

Yeong-Chiu Ngo

Huairong Shao

Bong-Hwan Cho

A method and apparatus for transmitting and receiving data. The method and apparatus previously determines a validity of a data transmission path for transmitting a stream from a source device to a sink device. The validity of the transmission path is verified by checking and securing the data transmission path, thereby executing a streaming service based on the validity.

Method and apparatus for transmitting and receiving data based on secured path bandwidth in network established by using audio/video interface

A system and method for wireless communication over multi-rate channels are disclosed. One embodiment of the system includes a first multi-band wireless station that is capable of using a first frequency band and a second frequency band for wireless communication; and a second multi-band wireless station that is capable of using the first frequency band and the second frequency band for wireless communication. One or more of the first and second stations is configured to monitor a status of the second frequency band. The status includes the availability of the second frequency band for communication between the first and second stations. The first and second stations can share the monitored status with each other via the first frequency band.

System and method for wireless multi-band networks association and maintenance

A method and system for isochronous data stream management in high speed audio/video networks. One implementation comprises isochronous communication management between audio/video (AV) devices by maintaining forwarding information for forwarding data between AV devices, wherein each AV device includes multiple I/O ports for connecting the AV device to another AV device via a communication link including multiple communication lanes. The forwarding information is utilized to communicate AV path set-up request and response control messages between a source AV device and a destination AV device via said communication link, and allocating isochronous communication resources for AV data streaming, for establishing AV path streams for bi-directional isochronous AV data streaming between the source and destination AV devices.

Method and system for isochronous data stream management in high speed audio/video networks

Method and system for isochronous communication between audio/video (AV) devices. One implementation comprises establishing isochronous connection between a source AV device and a destination AV device. Each AV device includes multiple I/O ports for connecting the AV device to another AV device via a communication link comprising multiple communication lanes. The isochronous connection is established by determining end-to-end temporal and spatial lane availability between the source AV device and the destination AV device to support a target date rate. Communication resources are allocated on the available lanes based on the target date rate for isochronous communication between the source AV device and the destination AV device.

Method and system for isochronous communication in audio/video networks

A system and method for efficiently communicating messages over a low-rate channel between multiple devices in a system for wireless communication of uncompressed video is disclosed. The method includes various control bits in a beacon control field of a beacon frame to improve the efficiency of the beacon processing, thereby reducing beacon processing time and size of the beacon frame itself. The transmitting device can use one or more of the various control bits to indicate whether there are changes in various MAC payload information fields. The receiving station can use one or more of the control bits to eliminate the need to parse one or more MAC payload information fields whose values have not changed from the previous beacon frame.

System and method for wireless communication of uncompressed video having beacon design

A method and system for device discovery in a wireless network is provided. The device discovery involves directionally transmitting a data unit from a transmitting station over a channel in different directions to emulate omni-directional transmission, receiving the data unit transmissions from different directions at a receiving station, determining the quality of the transmissions received from the different directions, and detecting location information for the transmitting station relative to the receiving station based on the highest quality transmission among the transmissions received from the different directions. Further, if a channel has sufficient bandwidth to satisfy direct link communication between two stations, then during a direct link set-up stage, the two stations conduct a probing message exchange using omni-direction transmission, and upon successful probing, obtain communication link status information and set proper communication configurations for the two stations based on the communication link status information.

Method and system for device communication in a wireless video area network

A system and method for multiple contention access periods is disclosed. In one embodiment, the system for wireless communication comprises a coordinator configured to schedule wireless transmissions among a plurality of wireless devices during a plurality of superframes, at least one of the superframes comprising a period during which the coordinator is configured to receive one or more data packets from the wireless devices via at least one random access scheme, the period being partitioned into a plurality of sub-periods which do not overlap with one another, wherein the coordinator is configured to receive at least a first data packet having a first value for a parameter during a first sub-period and a second data packet having a second value for the parameter during a second sub-period, and wherein the first and second values for the parameter are different from each other.

System and method for multiple contention access periods

A method and apparatus for multiplexing a plurality of streams transmitted and received via an audio/video (AV) link by allocating to the plurality of streams a plurality of basic units included in a transmission unit, and generating and transmitting an additional plurality of transmission units.

Method and apparatus for multiplexing and demultiplexing data transmitted and received by using audio/video interface

A method and a system for medium access control among devices in a communication system is provided. One implementation involves selecting a contention-based control period for access to a shared communication medium; dividing the contention-based control period into multiple time slots, wherein each slot has a duration that is a function of one or more of the duration of transmission of a request to send (RTS) frame, the duration of transmission of a clear to send (CTS) frame, and an inter frame space (IFS) duration therebetween; and transmitting an RTS frame in a selected slot for allocating a reservation period for accessing the medium for data transmission.

Method and system for medium access control in communication networks

A system and method of reserving bandwidth for disjoint time intervals in a wireless network. Parameters for a disjoint network allocation vector (NAV) define a reservation of a plurality of disjoint time durations during which transmissions by devices other than a target device are deferred. Parameters are sent as a control or data packet over a network and received by the devices associated with the network.

System and method for reservation of disjoint time intervals in wireless local area networks

An apparatus and method for achieving power saving for a portable device in a wireless network for transmitting audio/video (A/V) data is disclosed. An optimal transmit power level is selected by transmitting multiple probe messages by a portable device at increasing transmit power levels until a response to one of the probe messages is received within a preset allowed response time. A relay node is selected by a portable device for receiving compressed A/V data, uncompressing the compressed A/V data, and transmitting the uncompressed A/V data to an intended receiver.

System and method for wireless communication of uncompressed video having a relay device for power saving

Embodiments of the invention provide a method and system for determining wireless channel interference in a television (TV) band white space spectrum. Upon sensing a signal on a wireless channel from a wireless white space device that transmits a unique device identifier, interference by the wireless white space device on the wireless channel is determined. A report of the channel interference by the wireless white space device is generated and may be utilized to cease the interference.

Method and system for self-enabling portable television band devices

A system and method for wireless communication is disclosed. One aspect of the system includes wireless devices, wherein the wireless devices are capable of establishing a peer-to-peer link by contention-based channel access, and wherein the wireless devices are free to contend any time for accessing a wireless channel. The system may include first and second wireless devices, each of which has a directional antenna system. The first wireless device can determine whether the wireless channel is available for establishing a peer-to-peer link, by repeating sensing whether the channel is idle in different directions each during different slot time periods. The first wireless device can also sequentially transmit multiple requests each in different directions for establishing a link with the second wireless device. The second wireless device can sequentially transmit multiple replies each in different directions for establishing the link with the first wireless device.

System and method for contention-based channel access for peer-to-peer connection in wireless networks

Method and system for device discovery in a wireless video area network

A method and system for wireless communication involves communicating via a control channel the channel occupation information with a discovered wireless station, based on the occupation information, selecting a wireless data channel for a new transmission with the discovered station and reserving bandwidth for the new transmission on the data channel simultaneous with one or more ongoing transmissions on the data channel.

Growing community of inventors

Santa Clara, CA, United States of America

Harkirat Singh