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| Number | Title | Issue Date |
| 8184038 | Two-way ranging with inter-pulse transmission and reception Relatively short turnaround times are provided in conjunction with two-way ranging to, for example, facilitate accurate ranging measurements when the relative clock drift between ranging nodes (e.g., devices) is relatively high. In some aspects, relatively short tur... | 05/22/2012 |
| 8169890 | Systems and method for high data rate ultra wideband communication A high data rate UWB system implements a frame structure that uses a connected set of m-sequences comprising the lowest possible cross-correlation and perfect, or near perfect autocorrelation. Each m-sequence can be used to identify a different piconet. A very effic... | 05/01/2012 |
| 8165080 | Addressing schemes for wireless communication In an addressing scheme for wireless communication a communication channel may be defined based on a unique identifier associated with a destination node or a source node. In addition, a short identifier may be included in messages sent over the communication channe... | 04/24/2012 |
| 8160194 | Sampling method, reconstruction method, and device for sampling and/or reconstructing signals Reconstruction method for reconstructing a first signal (x(t)) regularly sampled at a sub-Nyquist rate, comprising the step of retrieving from the regularly spaced sampled values (ys[n], y(nT)) a set of weights (cn, cnr, ck | 04/17/2012 |
| 8155340 | Method and apparatus for rendering ambient signals An apparatus and method for communications is disclosed. The apparatus includes a receiver configured to scale an audio signal, and a transducer circuit configured to provide an ambient signal in response to an ambient condition, wherein the receiver is further conf... | 04/10/2012 |
| 8155239 | UWB system employing gaussian minimum shift key modulation, common mode signaling, and beamforming A multi-mode transmission system supporting OFDM and single-carrier signals is configured to perform interpolation and decimation such that the ratio of the interpolation factor to the decimation factor equals the ratio between the OFDM sampling rate and the single-... | 04/10/2012 |
| 8139528 | Adaptive transmission of resource utilization messages An adaptive scheme controls the transmission of interference management messages by wireless nodes. For example, the adaptive scheme may be used to determine whether and/or how to transmit resource utilization messages. Such a determination may be based on, for exam... | 03/20/2012 |
| 8130870 | UWB system employing gaussian minimum shift key modulation, common mode signaling and beamforming A multi-mode transmission system supporting OFDM and single-carrier signals is configured to perform interpolation and decimation such that the ratio of the interpolation factor to the decimation factor equals the ratio between the OFDM sampling rate and the single-... | 03/06/2012 |
| 8125961 | Four way handshake for robust channel estimation and rate prediction Systems and methodologies are described that facilitate enabling communication over a time varying channel with time varying interference. According to various aspects, systems and methods are described that facilitate selecting appropriate channels and identifying ... | 02/28/2012 |
| 8125952 | Synchronious multi-channel transmissions in wireless local area networks Certain aspects of the present disclosure relate to a method for synchronous multi-channel transmissions in wireless local area networks. An access point can change allocation of its transmit and receive chains across multiple frequency bands ensuring that both upli... | 02/28/2012 |
| 8103228 | Method for determining line-of-sight (LOS) distance between remote communications devices An apparatus for wireless communications is disclosed including a super regenerative receiver adapted to receive an incoming signal from a remote apparatus, and a circuit adapted to at least partially determine the distance to the remote apparatus based on the incom... | 01/24/2012 |
| 8081592 | Flexible medium access control (MAC) for ad hoc deployed wireless networks Systems and methods are disclosed that facilitate wireless communication using resource utilization messages (RUMs), in accordance with various aspects. A RUM may be generated for a first node, such as an access point or an access terminal, to indicate that a first ... | 12/20/2011 |
| 8081110 | Association in contention access period Certain aspects of the present disclosure relate to a method for association in contention access periods and to a method for multi-cycle training in channel time allocation periods. ... | 12/20/2011 |
| 8072278 | System and method for reducing power consumption of an oscillator An apparatus for generating an oscillating signal including a negative-resistance circuit, a crystal, and a component to modify a series resonance of the crystal to decrease power consumption of the negative-resistance circuit in generating the oscillating signal. T... | 12/06/2011 |
| 8059573 | Method of pairing devices Some aspects include a method of associating electronic devices for communicating data. The method includes receiving a message on a first device indicating that a second device is discoverable and pairable. The method further includes determining whether the first ... | 11/15/2011 |
| 8054223 | Quasi-omni training in channel time allocation period Certain aspects of the present disclosure relate to a method for association in contention access periods and to a method for multi-cycle training in channel time allocation periods. ... | 11/08/2011 |
| 8044742 | Wideband phase modulator An apparatus for phase modulation includes a delay locked loop configured to generate from a reference signal a plurality of phase shifted signals, each of the phase shifted signals being locked to the reference signal and having a different phase shift from the oth... | 10/25/2011 |
| 8036135 | Mac performance of a mesh network using both sender-based and receiver-based scheduling Systems and methodologies are described that facilitate determining when and whether to implement a sender-based data packet scheduling mechanism or a receiver-based data packet scheduling mechanism based on one or mode scheduling factors. For example, a sending nod... | 10/11/2011 |
| 8031026 | System and method for efficiently generating an oscillating signal An apparatus for generating an oscillating signal including an oscillator configured to generate the oscillating signal, a controller configured to generate a control signal that controls a characteristic (e.g., amplitude or frequency) of the oscillating signal, and... | 10/04/2011 |
| 8014425 | Multiple access techniques for a wireless communiation medium A multiple access technique for a wireless communication system establishes separate channels by defining different time intervals for different channels. In a transmitted reference system different delay periods may be defined between transmitted reference pulses a... | 09/06/2011 |
| 8005171 | Systems and method for generating a common preamble for use in a wireless communication system A UWB system comprising a plurality of piconets, wherein each piconet uses a different code to generate a preamble for use in communicating with a plurality of remote communication devices. The preamble can be generated from the combination of repeated versions of t... | 08/23/2011 |
| 8005065 | Keep-alive for wireless networks A transmitting device transmits data to one or more receiving devices. At least one of the receiving devices transmits a keep-alive to the transmitting device. The keep-alive is transmitted at a reduced rate relative to the data transmission rate. In some implementa... | 08/23/2011 |
| 8004992 | Adding hybrid ARQ to WLAN protocols with MAC based feedback A wireless node having a MAC layer configured to coordinate access to a shared wireless medium using a MAC protocol, a PHY layer configured to provide an interface to the shared wireless medium, and a HARQ layer between the MAC and PHY layers, the HARQ layer being c... | 08/23/2011 |
| 7974580 | Apparatus and method for modulating an amplitude, phase or both of a periodic signal on a per cycle basis An apparatus for wireless communications is disclosed including a signal generator adapted to generate a substantially periodic signal including a plurality of cycles, and a modulator adapted to modulate an amplitude, a phase or both the amplitude and the phase of t... | 07/05/2011 |
| 7969242 | Switching power amplifier for quantized signals An apparatus and method for communications are disclosed. The apparatus may include an a quantizer having three levels, and a switching power amplifier configured to drive a load having first and second terminals, wherein the switching power amplifier is further con... | 06/28/2011 |
| 7965805 | Signal generator with signal tracking Frequency and phase of an output signal is adjusted to track an input signal. A control signal is adjusted to control a frequency of an oscillating signal from which the output signal is derived. In some aspects the frequency of the oscillating signal is adjusted by... | 06/21/2011 |
| 7940687 | Efficient partitioning of control and data fields Embodiments describe efficient tradeoff of latencies with processing times. A single control field can be placed within a frame to tradeoff encoding time with decoding time. Alternatively, a control field can be split into two portions to achieve good latency perfor... | 05/10/2011 |
| 7934147 | Turbo LDPC decoding An iterative low-density parity-check (LDPC) decoding system comprises a first shift register for storing bit estimates, a plurality of parity-check processing node banks configured for processing the bit estimates for generating messages, combiners configured for c... | 04/26/2011 |
| 7916081 | Beamforming in MIMO systems A beamforming method comprises transmitting a training sequence from a transmitter array employing a set of beamforming vectors from a beamforming codebook. A receive array employs a combining codebook to acquire channel state information from the received transmiss... | 03/29/2011 |
| 7902936 | Method and apparatus for generating oscillating signals An apparatus for generating an oscillating signal that includes a circuit to accelerate the time in which an oscillating signal reaches a defined steady-state condition from a cold start. The apparatus includes an oscillating circuit to generate an oscillating signa... | 03/08/2011 |
| 7889753 | Multiple access techniques for a wireless communication medium A multiple access technique for a wireless communication system establishes separate channels by defining different time intervals for different channels. In a transmitted reference system different delay periods may be defined between transmitted reference pulses a... | 02/15/2011 |
| 7869529 | System, method and computer-readable medium for detection and avoidance (DAA) of victim services in ultra-wideband systems (UWB) A system for detection and avoidance of victim services in ultra-wideband (UWB) systems is provided. A detect and avoid module may calculate power averages of Orthogonal Frequency Division Multiplexing tones. The power of tones may be measured and compared with powe... | 01/11/2011 |
| 7868689 | Low power slicer-based demodulator for PPM An apparatus and method for communications is disclosed. The apparatus includes a slicer configured to generate samples of a signal carrying information, and a demodulator having a digital integrator configured to integrate the samples, the demodulator being further... | 01/11/2011 |
| 7860045 | Method and apparatus for transmitting data traffic on a wireless communication channel Methods and apparatus are presented for scheduling data packet transmissions during optimal channel conditions. In one method, data packet retransmissions are scheduled for transmission during favorable channel conditions when the target remote station is moving slo... | 12/28/2010 |
| 7855611 | Delay line calibration A tunable delay line is calibrated to maintain the delay of the delay line at a desired value or within a desired range of values. In some aspects a signal is passed through a delay line multiple times so that the cumulative delay of the signal through the delay lin... | 12/21/2010 |
| 7853862 | Systems and methods for a turbo low-density parity-check decoder A method for forming a plurality of parity check matrices for a plurality of data rates for use in a Low-Density Parity-Check (LDPC) decoder, comprises establishing a first companion exponent matrix corresponding to a first parity check matrix for a first data rate,... | 12/14/2010 |
| 7843863 | Subchannel control loop Independently controlling the transmitted power of each subchannel by a subchannel control loop is described. A transmitting station generates a channel made up of a sum of subchannels wherein each subchannel or group of subchannels is amplified with a unique gain v... | 11/30/2010 |
| 7834482 | Apparatus and method for generating fine timing from coarse timing source An apparatus for generating a pulse at a particular time dictated by an input. The apparatus may comprise an offset voltage generator for generating an offset voltage that is a function of the input, a current generator for generating a current, a ramp voltage gener... | 11/16/2010 |
| 7830782 | Method of using guard tones in OFDM systems for increasing robustness The present invention provides a method and system for increasing communication robustness between wireless communication devices by transmitting data on Orthogonal Frequency Division Multiplexing (OFDM) guard tones. In one embodiment, punctured bits are sent on the... | 11/09/2010 |
| 7812667 | System and method of enabling a signal processing device in a relatively fast manner to process a low duty cycle signal A system and method of improving the power efficiency of a receiver for low duty cycle applications. In one aspect, the receiver includes a low noise amplifier (LNA) that is capable of being enabled in a relatively quick fashion so as to amplify an incoming signal w... | 10/12/2010 |
