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7440530 |
Circuit for and method of optimizing the transmission of data on a communication channel
A circuit for optimizing the transmission of data on a communication channel is disclosed. According to one embodiment of the invention, a circuit comprises a transmitter circuit having a...
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7440499 |
Fractional spaced equalizer
Fractional Spaced Equalizer FSEQ having adjustable coefficients ci for equalizing a reception signal of a transceiver. The transceiver comprises an echo compensator EC which generates an echo...
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7440494 |
Method and system of bidirectional data transmission and reception
A simultaneous bi-directional data transferring method includes obtaining a combined signal from a portion of a data line proximate a host device. The combined signal is a signal that combines...
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7437079 |
Automatic selection of data rate for optoelectronic devices
Systems, devices and methods are disclosed for automatically selecting and setting an operational data rate of an optoelectronic device. In particular, an integrated circuit includes a data rate...
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7436906 |
Synchronous detector with high accuracy in detecting synchronization and a method therefor
In a symbol timing detector, a correlator calculates a correlation value for a received radio packet signal. A peak detector compares the correlation value with a threshold value to be used, and...
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7433426 |
Adaptive hysteresis receiver for a high speed digital signal
An adaptive hysteresis receiver processes a high speed digital signal. A differential receiver circuit compares the high speed digital signal to a reference voltage to generate an output signal. A...
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7433393 |
Apparatus for controlling a digital signal processor for radio isolation and associated methods
A method of operating a radio-frequency (RF) circuitry and a signal-processing circuitry in a mobile telephone apparatus includes at least partially disabling the signal-processing circuitry while...
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7426251 |
High speed transceiver operable to receive lower data rate transmissions
A high speed transceiver operable to receive lower data rate transmissions includes an oversampling module and a data recovery system. The oversampling module is operably coupled to oversample a...
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7426252 |
High speed transceiver receiving lower rate data
A high speed transceiver operable to receive lower data rate transmissions includes an oversampling module, an aligning module, a selecting module, and a memory module. The oversampling module is...
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7424228 |
High dynamic range radio frequency to optical link
A communication system includes an optical transmitter which is differentially driven and an optical receiver that outputs a differential signal. The optical transmitter creates the differential...
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7421014 |
Channel bonding of a plurality of multi-gigabit transceivers
A method for channel bonding begins when a master transceiver receives a channel bonding sequence. The process continues with the master transceiver generating a channel bonding request and...
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7418030 |
Flexible initialization method for DSL communication systems
A communication system 10 initialized using an iterative training portion is disclosed. The communication system 10 comprises a first transceiver 12 operable to communicate according to a...
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7408980 |
Semi-distributed power spectrum control for digital subscriber line communications
A semi-distributed method of managing the spectral power over multiple digital subscriber line communication loops (LP 1 , LP 2 ) is disclosed. A central office (CO) DSL transceiver ( 10 ) and a...
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7408979 |
Integrated radio circuit having multiple function I/O modules
An integrated radio circuit includes a receiver section, a transmitter section, an analog to digital converter section, a digital to analog converter section, a digital baseband processing module,...
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7406118 |
Programmable logic device including programmable multi-gigabit transceivers
A programmable logic device includes a plurality of programmable multi-gigabit transceivers, programmable logic fabric, and a control module. Each of the plurality of programmable multi-gigabit...
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7405719 |
Using packet transfer for driving LCD panel driver electronics
In a digital display device, a packet based method of driving selected pixel elements by way of associated data latches included in a column driver is disclosed. For each frame lines in a video...
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7406117 |
XDSL multi-hybrid modem with power spectral density shaping
Power spectral density shaping can be used in an XDSL system in order to adjust power spectral density properties of signals transmitted by an XDSL modem. The XDSL modem may include a power...
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7400693 |
System and method of echo cancellation
An economic low-complexity system and method for echo cancellation are disclosed. The system and method are particularly suited for multi-carrier VDSL using the U0 band. The techniques taught...
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7400671 |
Periodic calibration for communication channels by drift tracking
A method and system that provides for execution of a first calibration sequence, such as upon initialization of a system, to establish an operation value, which utilizes an algorithm intended to be...
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7397283 |
Digital A/V transmission PHY signaling format conversion, multiplexing, and de-multiplexing
A circuit includes a configurable receiver circuit, a multiplexer or demultiplexer coupled to the configurable receiver circuit, and a configurable driver circuit coupled to the multiplexer or...
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7395033 |
Radio communication apparatus
A plurality of carriers are divided into two systems, one on a low-frequency side and the other on a high-frequency side, a transmitting unit that executes processing for transmitting a signal...
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7394864 |
Mixed waveform configuration for wireless communications
A mixed waveform configuration for wireless communications including a first portion that is modulated according to a single-carrier modulation scheme and a second portion that is modulated...
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7391806 |
Digital data exchange device in a CDMA system
The invention relates to a device for exchanging digital data between several sources and at least one hub in a CDMA system, characterized in that it comprises a number n of digital...
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7388903 |
Adaptive transmission rate and fragmentation threshold mechanism for local area networks
An apparatus for adjusting the transmission bit rate and fragmentation threshold of a wireless station in response to transmission errors is disclosed. In particular, the illustrative embodiment of...
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7388904 |
Near-end, far-end and echo cancellers in a multi-channel transceiver system
A transceiver according to the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter and includes an interference filter for...
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7388905 |
Highly integrated asymmetric digital subscriber line (ADSL) circuit
An ADSL transceiver chip is provided that includes an analog front-end and a digital signal processor (DSP) integrated on the same substrate. A line driver for the ADSL transceiver can be located...
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7388906 |
Method for detecting bridged taps on telephony cable
In a particular embodiment a method of collecting and processing modem data is provided. The method includes, during training of a broadband modem, sending a series of tones within a frequency...
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7386059 |
Device for processing signals in a mobile station
A device for processing signals may be designed as a transmitting and receiving arrangement or exclusively as a receiving arrangement, and has a baseband component and a radiofrequency component....
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7383549 |
Processor sharing technique for communications and other data processing on a same processor
The computational load imposed by communications software executed on a general purpose processor can be significantly reduced by exploiting periods during an active connection when no data is...
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7379877 |
Signal processing device and signal processing method
Signal processing device and method include at least two codec units configured to operate in a plurality of modes of a coding/decoding/tandem free operation for data transmitted on a respective...
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7379492 |
Adaptive modulation coding system and method in a mobile communication network
An encoding method in a mobile communication system is provided. The method comprises selecting at least one adaptive coding rate and at least one modulation method according to estimated forward...
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7376207 |
Apparatus for receiving and recovering frequency shift keyed symbols
A receiver architecture for receiving an FSK signal having a predetermined number of modulation levels includes a selectivity filter ( 206 ) for selectively passing a wanted channel and rejecting...
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7376180 |
Adaptive receivers for bit rate agile (BRA) and modulation demodulation (modem) format selectable (MFS) signals
Systems, apparatus, and methods for new generations of wireless systems, including multiple standard, interoperable Third-Generation (3G) and Second-Generation (2G), Spread Spectrum CDMA, WCDMA,...
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7372898 |
Path loss measurements in wireless communications
A method for determining uplink power requirements for a transceiver in a wireless communication system includes obtaining measurements from a beacon signal occupying a first timeslot in a frame;...
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7369603 |
Compensating for spectral attenuation
A method and apparatus to compensate for spectral attenuation are described wherein the spectral attenuation for a communications channel is determined, a first filter is created for the...
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7369626 |
Efficient subcarrier equalization 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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7366231 |
Sub-block domain transformation multiple signal processing
Embodiments of an Ethernet transceiver are disclosed. The Ethernet transceiver includes a plurality of digital signal streams, at least one digital signal stream being coupled to another of the...
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7366230 |
Power control in mobile radio communications systems
A power control unit ( 500 ) for a power control system in a mobile communication system, the power control unit ( 500 ) comprising an inner power control loop element ( 503, 507 ), which generates...
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RE40281 |
Signal processing utilizing a tree-structured array
A communication system for sending a sequence of symbols on a communication link. The system includes a transmitter for placing information indicative of the sequence of symbols on the...
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7362798 |
Method for transmitting data to be transmitted using a subscriber modem
A method transmits data to be transmitted using a subscriber modem of a subscriber access network with adjusted transmission power. The method includes selecting at least one transmission frequency...
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7362839 |
Techniques to adjust vertical offset
Techniques to modify bias levels of a limiting amplifier based on a transition measurement and measurements before and after the transition.
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7362826 |
Receiver including an oscillation circuit for generating an image rejection calibration tone
A receiver circuit includes an oscillator circuit configured to generate a calibration tone and a phase locked loop (PLL) reference signal. An output frequency of the VCO may be divided by...
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7362828 |
Method of and system for optimizing the capacity of a digital communication system in presence of both internal and external noise
A method of optimizing a communication system for receiving and processing an input communication signal includes selecting a first noise margin m to be applied against an external noise present on...
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7359426 |
Method and system for modulating and demodulating signals in ultra-wide band (UWB) communication systems
In a transceiver system a passband single carrier transmitter is coupled to a first ultra-wide-band wireless transmission channel and a receiver may be coupled to the ultra-wide-band wireless...
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7359432 |
Speed negotiation for serial transceivers
An arrangement to enable automatic baud rate speed negotiation between transceivers having different operating speed characteristics is implemented. When an event indicative of a possible baud rate...
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7359259 |
Method for transmission and reception of a data signal on a line pair, as well as a transmission and reception circuit for this purpose
Apparatuses and methods for transmitting and receiving a data signal on a line pair having a first transmission line and a second transmission line are provided. In one embodiment, a data signal...
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7355535 |
Signal processing providing lower downsampling losses
Methods and devices for processing GPS signals are provided. The device includes: means for storing one or more lookup tables, each lookup table comprising a plurality of entries, each entry...
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7356076 |
System and method supporting auto-recovery in a transceiver system
A method and apparatus are disclosed to aid a transceiver chip, in a serial data communications system, in recovering from a system-side, out-bound data clocking problem. If a problem with a...
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7352805 |
Systems and methods for adaptive VDSL with variable sampling frequency and time-domain equalizer
A method and system for enhancing reach-performance of a multi-carrier VDSL System estimates loop length, estimates maximum available bandwidth that can be utilized at that particular loop length,...
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7352718 |
Spatial division multiple access for wireless networks
Multiple Input Multiple Output (MIMO) technology in conjunction with the IEEE 802.11 standard enables simultaneous communication of data packets to or from multiple users in the same frequency....
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