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| Number | Title | Issue Date |
| 8050360 | Direct link relay in a wireless network Disclosed herein are exemplary techniques for power conservation in a wireless network. A wireless device identifies another wireless device suitable to act as a relay node. Uplink information is transmitted to the other wireless device, which is in turn relayed to ... | 11/01/2011 |
| 7436903 | Multicarrier transmitter and method for transmitting multiple data streams with cyclic delay diversity A multicarrier transmitter may transmit cyclically delayed linear combinations of two or more data streams with three or more antennas. In some embodiments, the multicarrier transmitter may transmit cyclically delayed linear combinations of three data streams with f... | 10/14/2008 |
| 7415013 | Reduced pin gigabit media independent interface A medium access control (MAC) device comprising an encoder that encodes a transmit control signal including one of a transmit enable signal in one half cycle of a clock signal and a transmit error signal in another half cycle of the clock signal. A control signal tr... | 08/19/2008 |
| 7386067 | Frequency offset cancellation circuit for data determination in wireless communications A demodulating semiconductor integrated circuit device used in a wireless communication system of an FM-modulation scheme, wherein a circuit for canceling a frequency offset is made of a digital circuit, so as to make a high-accuracy decision as to received data and... | 06/10/2008 |
| 7379714 | Method and apparatus for dynamically adjusting a transmitter's impedance A method and apparatus for dynamically adjusting the impedance between a transmitter's power amplifier (PA) and antenna to efficiently transfer power from the PA to the antenna. The impedance between the PA and the antenna is adjusted based on power level measuremen... | 05/27/2008 |
| 7372918 | Transmission device with adaptive digital predistortion, transceiver with transmission device, and method for operating a transmission device The invention provides a transmission device having adaptive digital predistortion, which has a transmission path and a feedback path. The transmission path contains a predistortion unit which takes a derived control signal (LS) and baseband signals applied to the i... | 05/13/2008 |
| 7254184 | Wireless communication using multi-transmit multi-receive antenna arrays A method of closed-loop multi-stream wireless communication between a transmitter (1) comprising a transmit antenna array of N transmit antenna elements and a receiver (3) comprising a receive antenna array (4) of M receive antenna elements, whe... | 08/07/2007 |
| 7106266 | Tuned antenna ID reader A multi-coil antenna array constructed with a tuned transformer to null mutual inductance. First and second antenna coil halves are displaced longitudinally on opposite sides of a pathway along which ID tags pass, for example, a chute assembly. The planar coils are ... | 09/12/2006 |
| 7065075 | Reduced pin gigabit media independent interface A system for encoding signals for a network device includes an encoder configured to encode a transmit control signal. The transmit control signal includes a transmit enable signal in a first half of a cycle of a clock signal, and a transmit error signal in a second... | 06/20/2006 |
| 7050758 | Self-configuring repeater system and method Provided is a system and method for a self-configuring repeater in a telecommunications network. The repeater receives data from a base transceiver station (BTS) via a downlink channel and sends data to the BTS via an uplink channel. The repeater compares the power ... | 05/23/2006 |
| 7046957 | Reflecting modulator circuit comprising a negative impedance amplifier A modulator circuit comprises a negative impedance amplifier which is operable such that a signal applied to the amplifier is reflected and amplified. Switching circuitry is provided for switching the impedance of the amplifier between two reflecting states such tha... | 05/16/2006 |
| 6832097 | Radio communication apparatus and transmission power controlling apparatus When an antenna switching unit selects a first antenna and a reference gain does not exceed a first limit value, a gain of a variable amplifier is set to the reference gain. When the antenna switching unit selects the first antenna and the reference gain exceeds the... | 12/14/2004 |
| 6724804 | Frequency converter and radio communications system employing the same In a frequency converter, a phase-locked loop generates a local-oscillation signal having a low frequency, of a plurality of local-oscillation signals having different frequencies, based on an intermediate frequency beacon signal that results from mixing a predeterm... | 04/20/2004 |
| 6434135 | Adaptive RF amplifier prelimiter The invention reduces transient peaks in signals transmitted in CDMA communication systems. A plurality of spread spectrum data signals are combined into a combined signal having fluctuating power level corresponding to the combination of the data signals... | 08/13/2002 |
| 6246444 | Digital and analog TV common-use receiver having single ghost canceler and ghost cancellation method A digital/analog TV common-use receiver having a single ghost canceler, and a ghost cancellation method are provided. The single ghost canceler includes a first filter coefficient generator for generating first filter coefficients using a first reference ... | 06/12/2001 |
| 5640687 | Backscattering transponder switchable between a modulator/demodulator and ground An electronic toll system for monitoring a plurality of lanes including a plurality of lane monitoring devices operative to monitor passage of vehicles through the corresponding plurality of lanes, and a lane monitoring device coordinating system for coor... | 06/17/1997 |
| 5285478 | Communication system utilizing self-similar signals A communication system is provided in which a transmitter performs modulation upon a number sequence to be transmitted. The modulation scheme includes embedding a sequence of numbers into a waveform such that the sequence is present in the waveform on mul... | 02/08/1994 |
| 3943446 | Power and modulation control system A system for controlling and maintaining the power output of a broadcast transmitter under varying line voltage conditions, including a pulse width modulator wherein a triangular wave acting as a reference input is compared to the audio input. Power is co... | 03/09/1976 |
