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7352822 |
Telephone for transmitting an uplink signal to a base station and for receiving first and second downlink signals from the base station, and a base station for receiving an uplink signal from a telephone and transmitting first and second downlink signals to the telephone
At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and...
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7352688 |
High data rate wireless bridging
A specialized preamble is provided to facilitate matrix channel estimation of a MIMO channel. In a particular implementation, a channel training preamble provided by the IEEE 802.11a standard is...
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7346313 |
Calibration of I-Q balance in transceivers
Transceivers using direct conversion between baseband and RF have become popular for low-cost designs. Bandwidth-efficient modulations employ information on both phases of the carrier, and for...
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7346119 |
System and method for high speed digital signaling
The present invention relates in general to a method, apparatus, and article of manufacture for providing high-speed digital communications through a communications channel. In one aspect, the...
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7346100 |
Estimating gain and phase imbalance in upconverting transmitters
Estimation of gain and phase imbalance of an upconverting transmitter. A transmitter transmits symbols containing vector components of pre-specific relationship in an analog signal. A receiver...
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7346099 |
Network fabric physical layer
A network fabric physical layer includes a driver coupled to a receiver via a bus, which implements a multiphase encoded protocol. A multiphase sequencer sequences (data or command/control) words...
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7343431 |
Method, apparatus, and computer-readable medium for disabling BIOS-provided console redirection capabilities in the presence of an incompatible communications device
Methods, systems, apparatus, and computer-readable media are provided for disabling a BIOS-provided console redirection facility in the presence of an incompatible device. According to the method,...
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7342956 |
System and method to extract uplink status flag bits in a cellular wireless network
Determining whether a first wireless terminal may transmit on an uplink to a servicing base station in a cellular wireless communication system includes first receiving a plurality of a Radio...
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7342954 |
Adaptive modulation for wireless networks
The invention relates to communication between terminals. Where communication is over an ideal channel then a high throughput modulation scheme can be used. Where the terminals suffer interference...
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7342955 |
Apparatus and method for mobile communication device transmission
An apparatus and method for transmission power amplifier bias control in an enhanced data rate for global system mobile evolution mobile communication device. The apparatus can include a...
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7339978 |
Adaptive weight update method and system for a discrete multitone spread spectrum communications system
A new method makes the most efficient use of the scarce spectral bandwidth in a wireless discrete multitone spread spectrum communications system by updating the spectral and/or spatial spreading...
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7340001 |
Multidimensional signal modulation and/or demodulation for data communications
Systems and methods are described for multidimensional signal modulation and/or demodulation for data communications. A method includes modulating a carrier signal in a first domain selected from...
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7339981 |
Shifted training sequences in a communications system
Embodiments of the present invention can be used to select a training sequence used by a base station and a user terminal for communications. In one embodiment, selecting the training sequence to...
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7336700 |
System bus transceiver interface
The present invention is directed to a transceiver configured for use with a multi-tier system bus that allows for the flow of information to be managed among plural processors by connecting...
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7336706 |
Programmable integrated DiSEqC transceiver
Programmable integrated Digital Satellite Equipment Control (DiSEqC) transceiver. The DiSEqC functionality is integrated onto a semiconductor device. Rather than perform the DiSEqC protocol in...
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7333423 |
Transceiver with calibrated I and Q paths and methods for deconvolved calibration
Phase and amplitude offsets of a multicarrier transceiver may be reduced by measuring receiver amplitude and phase mismatches of receiver radio-frequency (RF) circuitry by performing a fast Fourier...
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RE40078 |
Demand-based power and data rate adjustments to a transmitter to optimize channel capacity and power usage with respect to data transmission traffic over a fixed-bandwidth channel
In a communication system in which a transmitter transmits data over a communication channel of a fixed bandwidth to a receiver, the method according to which the transmit data rate is continuously...
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7330512 |
System and method for the data transmission of digital transmission data
The invention relates to a system for the data transmission of digital transmission data ( 17, 18 ) between a first digital protective device ( 1 ) and a second digital protective device ( 9 ) on a...
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7330500 |
Adjustable electronic duplexer
A duplexer for a communication device having a transmission unit, a reception unit and a shared antenna is disclosed. The duplexer comprises a first signal path between the transmission unit and...
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7330502 |
Input/output circuit and semiconductor integrated circuit
An input/output circuit includes a reference clock generator configured to generate a reference clock. A signal transmitter is configured to transmit serial data in synchronization with one of the...
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7330501 |
Orthogonal normalization for a radio frequency integrated circuit
A radio frequency integrated circuit includes a transmitter section, and a receiver section. The receiver section includes a low noise amplifier, down conversion module, an orthogonal-normalizing...
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7324608 |
Efficient subcarrier weighting to enhance receiver performance
A modem system for receiving and transmitting signals having a frequency domain equalizer (FEQ) block being responsive to a frequency channel response for processing the same to generate one or...
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7324475 |
Radio communication apparatus and method
In a radio communication apparatus having a plurality of transmitting and receiving functions that enable simultaneous signal transmission and reception, an arbitrary number of transmitting and...
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7321612 |
Bit stream conditioning circuit having adjustable PLL bandwidth
A high-speed bit stream interface module interfaces a high-speed communication media to a communication Application Specific Integrated Circuit (ASIC) via a Printed Circuit Board (PCB). The...
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7321611 |
Method and transceiver for full duplex communication of ultra wideband signals
An impulse radio transceiver for full duplex ultrawide-band communications. The transceiver comprises an impulse radio transmitter that transmits impulse radio signal pulses, an impulse radio...
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7321613 |
Automatic impedance matching compensation for a serial point to point link
An integrated circuit (IC) device that has an analog front end with an I/O buffer is reset. The I/O buffer has a driver circuit to transmit a stream of information over a serial point to point...
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7319712 |
Orthogonal code generation apparatus, scrambling code generation apparatus and portable radio terminal using such apparatus
An orthogonal code generation apparatus can generate a sequence of orthogonal codes without having to prestore orthogonal code sequences in a memory, by applying logic operation on a sequence...
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7315817 |
Sound encoder and sound decoder
An sound encoder accepts a sound signal and then produces a plurality of codes which represent the sound signal on a frame-by-frame basis. The sound encoder determines the order in which the...
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7313210 |
System and method for establishing a known timing relationship between two clock signals
A system and method for establishing a known timing relationship between two clock signals, wherein a first clock signal is operable to clock data transfer operations from a transmitter domain to a...
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7313178 |
Transceiver for receiving and transmitting data over a network and method for testing the same
The present invention provides a transceiver for receiving and transmitting data over a network, and a method for testing the same. In particular, the present invention provides a physical layer...
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7313199 |
Power amplifier linearization
A system for linearizing the output of a high power amplifier (HPA) designed to transmit an RF modulated signal includes in its transmit section a digital up-converter for processing baseband input...
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7313176 |
Programmable on chip regulators with bypass
A device and a method for processing high data rate serial data includes circuitry for recovering or generating a clock based with varying amounts of phase noise or jitter based upon a particular...
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7308025 |
Transmitters providing cycle encoded signals
In some embodiments, the inventions includes a transmitter including a cycle encoding circuit to receive a data input signal and to provide a full cycle encoded signal in response thereto by...
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7308004 |
Method and apparatus of multiplexing and demultiplexing communication signals
A method and apparatus for multiplexing and demultiplexing communication signals are described herein. In one embodiment, an apparatus includes first sample logic to sample a plurality of...
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7308024 |
Modulation scheme for FDD/TDD transceivers
Cordless communication techniques for cordless communication devices having a handset unit and a base unit are provided. Such techniques can utilize a modulation method for Frequency Division...
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7305059 |
Method and device for the clocked output of asynchronously received digital signals
A method and device for the uniform output of asynchronously transmitted digital values is provided, including: receiving the digital values in a receiver from a transmission path; outputting the...
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7305023 |
Receivers for cycle encoded signals
In some embodiments, the inventions includes a transmitter including a cycle encoding circuit to receive a data input signal and to provide a full cycle encoded signal in response thereto by...
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7305024 |
Method of fixing frequency complex up-conversion phase and gain impairments
A technique associated with transceiver systems solves transmitter impairments when the system has both receiver and transmitter operating with the same local oscillator frequency but with...
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7305037 |
Calibration system for a communications system
A calibration system for a communication system is provided featuring a transmitter circuit, a receiver circuit, a transmission medium having a transfer function for transmitting a signal between...
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7302021 |
Digital broadcast receiving apparatus
In a digital broadcast receiving apparatus for amplifying a received modulated digital signal wave with automatically adjusted gain and demodulating the modulated signal wave to a digital signal, a...
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7295817 |
Wireless data communication unit
A wireless data communication unit ( 700 ) shares a data communication resource with a plurality of other data communication units. The wireless data communication unit ( 700 ) receives channel...
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7295603 |
Method and system for virtual exchange reference impact (VERI) for use in mixed spectrum management in DSL
A method and apparatus implements a Virtual Exchange Reference Impact (VERI) technique to define a pattern to shape the spectrum of a cabinet deployed system to minimize its impact, e.g., FEXT,...
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7295599 |
Digital conversion and compensation system
According to one aspect of the invention, a system is provided which includes an adaptive compensation component and a conversion component. The adaptive compensation component performs spectral...
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7286516 |
Methods and systems for wireless local area network (WLAN)-based signaling network monitoring
Methods and systems for WLAN-based signaling network monitoring are disclosed. A signaling message is received at a network routing node. A message copy function on the network routing node copies...
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7283583 |
Adaptive rate transmission with dual noise margins
A method for adaptive-rate communication includes setting a first target signal margin with respect to an actual noise level and a second target signal margin with respect to a predetermined noise...
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7283158 |
Digital camera and function appending method for the same
There is provided a digital camera to which external programs can be installed for appending desired functions thereto. Print image data generating programs to be stored in a recording medium in...
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7283595 |
Ultra wide band pulse train generator
An ultra wide band (UWB) pulse train generator, which includes a trigger signal controller for sequentially outputting n trigger signals for triggering generation of UWB pulse train in accordance...
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7280807 |
Initiator device capable of two-way half-duplex communication with multiple recipient devices
An initiator transceiver for operating in a two-way half-duplex communication mode with multiple recipient transceivers. The transceivers includes a body having a cavity and a control device,...
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7280590 |
Receiver termination network and application thereof
A receiver termination network is included in a high-speed receiver that also includes a receiver analog front-end and a data recovery module. The receiver termination network includes a DC matched...
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7277478 |
Method for transmitting data between a base station and a transponder
In known methods for the transmission of data, the data transmission rate is reduced by bit errors especially at high carrier frequencies. In the new method, the data transmission rate can be...
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