Abstract: A method and apparatus to enable subscribers of cellular or telephone networks and internet users to conduct unsolicited and direct trading of goods, offering or requesting services, searching for friends, obtaining or providing specific pieces of information using handheld and personal devices that include smart phones, personal digital assistants, video devices, desktops and laptops.

Abstract: Techniques and devices for antenna selection in a multiple-input-multiple-output (MIMO) system, in which communication is between a transmitter having a first plurality of radio-frequency (RF) chains coupled to a first plurality of antennas and a receiver having a second plurality of RF chains coupled to a second plurality of antennas, are provided. Techniques include receiving consecutive sounding packets each have a training symbol and that collectively sound a full-size channel for the MIMO system. A sub-channel estimate for each sounding packet can then be determined based on various factors, such as a known power level rule and gain factor. Scaling factors may be applied to each of these sub-channel estimates to produce a scaled sub-channel estimates.

Abstract: A network device includes a calibration module that receives a first channel state information (CSI) matrix from a link partner, that determines CSI based on radio frequency (RF) signals transmitted from the link partner, and that generates a second CSI matrix that includes the CSI for the RF signals. The network device includes a first steering module that determines a first steering matrix based on the first CSI matrix, a control module that adjusts beamforming weights based on the first steering matrix, and a second steering module that determines a second steering matrix based on the second CSI matrix and that transmits the second steering matrix to the link partner.

Abstract: A wireless network apparatus and corresponding method and computer program comprises channel queues each to store packets of data to be transmitted on a respective wireless channel in one of a plurality of frequency bands; a memory to store a channel access time value and a return to channel value for each of the wireless channels; and a controller to select one of the wireless channels according to a channel polling scheme, and on that channel, cause a start beacon packet to be sent, exchange packets of data for an interval specified by the channel access time value, cause a stop beacon packet to be sent at the end of the interval specified by the channel access time value, and cause a further start beacon packet to be sent at the end of an interval specified by the return to channel value.

Abstract: A media player/recorder, and a method and computer program product for same comprises a wireless receiver to receive a signal representing encoded media data; a storage device to store the encoded media data; a processor comprising a storage controller to retrieve the encoded media data from the storage device, and a digital signal processor to decode the encoded media data retrieved by the storage controller; and an output circuit to output the decoded media data from the processor.

Abstract: A signal, and transmitters and receiver therefor, comprises a plurality of signal bursts each comprising m preamble fields, n payload fields, and n signal fields; wherein m<n; wherein each of the m preamble fields comprises a plurality of training sequences; wherein each of the n payload fields is preceded by one of the n signal fields; wherein each one of the n signal fields comprises information describing the following one of the n payload fields, and preamble data, wherein the preamble data in one of the n payload fields is set to a predetermined value only when one of the m preambles occurs between the one of the n signal fields and the next one of the n signal fields.

Abstract: A system for allocating bandwidth in a network includes a base station. The system also includes a plurality of stations in communication with the base station. During a measurement period, the base station monitors an amount of information communicated by each of the plurality of stations to determine bandwidth required by each of the plurality of stations. After the measurement period, the base station transmits a bandwidth allocation message to the plurality of stations allocating bandwidth to each of the plurality of stations for transmitting information during respective timeslots specified in the bandwidth allocation message.

Abstract: An access point comprises a transmitter. A coding module communicates with the transmitter and generates a first packet including a first field that identifies one of a standard signal processing mode and an extension signal processing mode, a second field that selectively defines a data length based on one of a transmit time period for the first packet and the transmit time period plus an extension mode time period for performing the extension signal processing mode, and a third field that selectively comprises one of the data and the data and dummy data.

Abstract: A wireless station comprises a transmitter. A coding module communicates with the transmitter and generates a first packet including a first field that identifies one of a standard signal processing mode and an extension signal processing mode, a second field that selectively defines a data length based on one of a transmit time period for data of the first packet and the transmit time period plus an extension mode time period for performing the extension signal processing mode, and a third field that selectively comprises one of the data and the data and dummy data.

Abstract: An apparatus comprising a vehicle and a media player/recorder physically connected with the vehicle, the media player/recorder comprising a wireless receiver to receive a signal representing encoded media data; a storage device to store the encoded media data; a processor comprising a storage controller to retrieve the encoded media data from the storage device, and a digital signal processor to decode the encoded media data retrieved by the storage controller; and an output circuit to output the decoded media data from the processor.

Abstract: A media player/recorder includes a wireless receiver to receive a signal representing media data, a storage device to store the media data, a storage controller to retrieve the media data from the storage device, and an output circuit to output the media data. The storage device stores a list of identifiers of desired media selections. The wireless receiver receives a signal representing an identifier of an offered media selection. The storage device stores the offered media selection when the identifier of the offered media selection corresponds to the identifier of one of the desired media selections.

Abstract: An apparatus includes a vehicle and a media player/recorder physically connected with the vehicle. The media player/recorder includes a wireless receiver to receive a signal representing media data, a storage device to store the media data, a storage controller to retrieve the media data from the storage device, and an output circuit to output the media data. The storage device stores a list of identifiers of desired media selections. The wireless receiver receives a signal representing an identifier of an offered media selection. The storage device stores the offered media selection when the identifier of the offered media selection corresponds to the identifier of one of the desired media selections.

Abstract: An apparatus comprising a vehicle and a media player/recorder physically connected with the vehicle, the media player/recorder comprising a wireless receiver to receive a signal representing encoded media data; a storage device to store the encoded media data; a processor comprising a storage controller to retrieve the encoded media data from the storage device, and a digital signal processor to decode the encoded media data retrieved by the storage controller; and an output circuit to output the decoded media data from the processor.

Abstract: A method, apparatus, and computer-readable media for a wireless local-area network comprises a transmit circuit to transmit first data; a transmit counter to count an amount of the first data transmitted by the transmit circuit during a predetermined monitoring interval; a receive circuit to receive second data; a receive counter to count an amount of the second data received by the receive circuit during the predetermined monitoring interval; and an adaptive access control circuit to generate an access trigger signal at a time determined by the amount of the first data counted by the transmit counter during the predetermined monitoring interval and the amount of the second data counted by the receive counter during the predetermined monitoring interval; and wherein the transmit circuit transmits third data according to the access trigger signal.

Abstract: A media player/recorder, and a method and computer program product for same comprises a wireless receiver to receive a signal representing encoded media data; a storage device to store the encoded media data; a processor comprising a storage controller to retrieve the encoded media data from the storage device, and a digital signal processor to decode the encoded media data retrieved by the storage controller; and an output circuit to output the decoded media data from the processor.

Abstract: A wireless data communications device having a corresponding method and computer program comprises a Multiple Input, Multiple Output (MIMO) transceiver to communicate on an Orthogonal Frequency Division Modulation (OFDM) channel; a measurement circuit having an active state and an inactive state, wherein the measurement circuit measures a channel condition of the OFDM channel in the active state; and a controller to place the measurement circuit in the active state after a request for the channel condition is received on the OFDM channel, and to place the measurement circuit in the inactive state after the measurement circuit measures the channel condition of the OFDM channel and until a further request for the channel condition is received on the OFDM channel.

Abstract: An integrated circuit to control a media player/recorder having a wireless receiver, a storage device, and an output circuit, wherein the wireless receiver receives a signal representing encoded media data, and a method and computer program product for same. It comprises a processor comprising a digital signal processor, and a storage controller responsive to the digital signal processor to store the encoded media data in the storage device; a read channel responsive to the storage controller to read the encoded media data from the storage device; wherein the digital signal processor comprises a decoder to decode the retrieved encoded media data; and a digital-to-analog converter to convert the media data decoded by the decoder to an analog signal, wherein the analog signal is output to the output circuit.

Abstract: A transmitter beamforming technique for use in a MIMO wireless communication system determines a partial description of a reverse channel without determining a full dimensional description of the reverse channel. A correction matrix is developed from the partial description of the reverse channel and a description of the forward channel. The correction matrix is used to process signals to be transmitted via the forward channel, and a steering matrix is used to perform beamforming in the forward channel.

Abstract: An integrated circuit to control a media player/recorder having a wireless receiver, a storage device, and an output circuit, wherein the wireless receiver receives a signal representing encoded media data, and a method and computer program product for same. It comprises a processor comprising a digital signal processor, and a storage controller responsive to the digital signal processor to store the encoded media data in the storage device; a read channel responsive to the storage controller to read the encoded media data from the storage device; wherein the digital signal processor comprises a decoder to decode the retrieved encoded media data; and a digital-to-analog converter to convert the media data decoded by the decoder to an analog signal, wherein the analog signal is output to the output circuit.

Abstract: A method, apparatus, and computer-readable media for detecting a security breach in a network comprising an access point and a plurality of transceivers each having a different media access control address comprises, at one of the transceivers, receiving a signal from the access point, the signal representing one or more packets of data; determining a source media access control address for each of the packets; and transmitting an alert packet to the access point when the source media access control address of one of the packets is the media access control address of the transceiver.