摘要:
A method and apparatus for utilizing a high bandwidth communications channel for broadcasting network data during off-peak hours is disclosed. A demodulation unit includes, 1) a standard television broadcast signal receiver, the signal having a plurality of channels; 2) a partitioning unit configured to partition at least one channel of said plurality of channels into a plurality of variable size sub-channels; 3) a modulating unit configured to modulate a variety of different types of information into said plurality of sub-channels; and 4) a transmitter configured to transmit said plurality of sub-channels over a high bandwidth communications channel during off-peak hours.
摘要:
A system and method are described which enable planned evolution and obsolescence of multiuser wireless spectrum. One embodiment of such a system includes one or multiple centralized processors and one or multiple distributed nodes that communicate via wireline or wireless connections. The distributed nodes may share their identification number and other reconfigurable system parameters with the centralized processor. The information about all distributed nodes may be stored in a database that is shared by all centralized processors. The reconfigurable system parameters may comprise power emission, frequency band, modulation/coding scheme. The distributed nodes may be software defined radios such as FPGA, DSP, GPU and/or GPCPU that run algorithms for baseband signal processing and may be reconfigured remotely by the centralized processor. A cloud wireless system may be used wherein the distributed nodes are reconfigured periodically or instantly to adjust to the evolving wireless architecture.
摘要:
A multiple antenna system (MAS) with multiuser (MU) transmissions (“MU-MAS”) exploiting inter-cell multiplexing gain via spatial processing to increase capacity in wireless communications networks.
摘要:
A system and method are described below for encoding interactive low-latency video using interframe coding. For example, one embodiment of a computer-implemented method for performing video compression comprises: logically subdividing each of a sequence of images into a plurality of tiles, each of the tiles having a defined position within each of the sequence of images, the defined position remaining the same between successive images; detecting motion within the sequence of images occurring at each of the positions of each of the tiles; and encoding each tile within each image of the sequence of images using a first compression format or a second compression format, wherein the frequency at which a particular tile is encoded according to the first compression format across the sequence of images is based on the detected amount of motion at the position of that tile across the sequence of images.
摘要:
A system and method are described herein employing a plurality of distributed transmitting antennas to create locations in space with zero RF energy. In one embodiment, when M transmit antennas are employed, it is possible to create up to (M−1) points of zero RF energy in predefined locations. In one embodiment of the invention, the points of zero RF energy are wireless devices and the transmit antennas are aware of the channel state information (CSI) between the transmitters and the receivers. In one embodiment, the CSI is computed at the receivers and fed back to the transmitters. In another embodiment, the CSI is computed at the transmitter via training from the receivers, assuming channel reciprocity is exploited. The transmitters may utilize the CSI to determine the interfering signals to be simultaneously transmitted. In one embodiment, block diagonalization (BD) precoding is employed at the transmit antennas to generate points of zero RF energy.
摘要:
A graphical user interface, system and method are described controlling a video stream. For example, a data processing apparatus according to one embodiment has a memory for storing program code and a processor for processing the program code to generate a graphical user interface (“GUI”) comprising: a plurality of video thumbnails arranged in a pattern, each of the video thumbnails rendering a compressed version of a real-time video of a particular movie, television series, game, or other type of video content; and a selection graphic highlighting a currently-selected video thumbnail, the thumbnails moving within the GUI in relation to the selection graphic in response to user input from an input device.
摘要:
A system and methods are described which compensate for the adverse effect of Doppler on the performance of DIDO systems. One embodiment of such a system employs different selection algorithms to adaptively adjust the active BTSs to different UEs based by tracking the changing channel conditions. Another embodiment utilizes channel prediction to estimate the future CSI or DIDO precoding weights, thereby eliminating errors due to outdated CSI.
摘要:
A system and method for performing video compression and streaming video from an online hosted video game or application. The online hosted video game or application is streamed to the client with a latency such that the user has the perception that the selected video game or application is responding instantly to the control signals received from the client device. In addition, feedback information received from the client device is used to determine characteristics of a communication channel between a server and the client. The video stream encoding is adjusted based on the detected communication channel characteristics, while maintaining a latency such that the user has the perception that the selected video game or application is responding instantly.
摘要:
An apparatus and method are described for retaining system state of an online application such as a video game. For example, a method according to one embodiment comprises: executing a application on a server in response to user input from a client; transmitting video generated by the application over a network connection from the server to the client; detecting that the network connection has become unusable or impaired; responsively pausing the execution of the application from a current point of execution; and resuming the execution of the application from the current point of execution upon detecting that the network connection has become usable or unimpaired.
摘要:
A system and method are described below for encoding interactive low-latency video using interframe coding. For example, one embodiment of a computer-implemented method for performing video compression comprises: logically subdividing each of a sequence of images into a plurality of tiles, each of the tiles having a defined position within each of the sequence of images, the defined position remaining the same between successive images; detecting motion or high scene complexity within the sequence of images occurring at each of the positions of each of the tiles; and encoding each tile within each image of the sequence of images using a specified number of bits, the number of bits selected based on the detected amount of motion at the position of each tile across the sequence of images.