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7519124 |
Method for seamless bit rate adaptation for multicarrier DSL
A method of mitigating transmission delay fluctuations in a communication system having a variable data rate and block-oriented subsystems, such as interleavers. The method comprises interspersing...
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7515555 |
Wireless LAN transceiver and wireless LAN transmitting/receiving method
The present invention addresses a problem that switching antennas along with an unexpected variation of a received electrical field strength brings about a loss over a long period of data...
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7515646 |
Method and apparatus for reducing EMI emissions for data signals traveling over a data pathway
An improved data signal electromagnetic emissions system is provided for sending data signals over one or more data pathways. An original data signal is encoded into a set of sideband frequencies...
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7515648 |
Transmitter and wireless communication apparatus using same
A transmitter that can reduce noise without using an SAW filter whose IC integration is hard, and copes with two modulation formats of constant envelope modulation and non-constant envelope...
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7512174 |
Transmission determining method in a reception side apparatus
The invention determines a transmission power value or a data rate in transmission power control in a reception side apparatus. A communication apparatus includes a modulation class controlling...
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7508887 |
Signal acquisition with transmit blanking compensation
A method and apparatus for signal acquisition with transmit blanking compensation compensates for collisions between a desired received signal and a transmitted signal. A blanking block blanks a...
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7502408 |
RF transceiver having adaptive modulation
A modulation control module for use in an RF transceiver, the modulation control module includes a processing module and memory. The memory is operably coupled to the processing module, wherein the...
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7502338 |
De-emphasis training on a point-to-point connection
A method for establishing data transmission between a two devices by performing de-emphasis training is disclosed. While a retry count does not exceed a predetermined threshold: a training pattern...
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7499486 |
Data transmission rate adaptation in a wireless communication system
In a wireless system comprising at least one transceiver configurable for communication over a wireless communication channel, the transceiver comprising a transmitter and a receiver, a method for...
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7498935 |
Power-line carrier communication apparatus
The invention provides a power-line carrier communication apparatus including a transmission unit with a signal point mapping device for mapping a plurality of bit streams produced from...
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7496133 |
Multi-rate on-chip OCN filter for a transceiver system
An apparatus and method are disclosed to aid a transceiver chip, in a wide-band serial data communications system, in receiving data at multiple data rates. A multi-rate filter within the...
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7496152 |
Adaptive control apparatus
Disclosed is an adaptive control apparatus having an error calculation unit for calculating the difference between a reference signal and a feedback signal, and an adaptive controller for applying...
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7496157 |
Apparatus for detecting a distance and apparatus for detecting a body
In an apparatus for detecting a distance and improving the SN ratio of received signals, an angular frequency (ω 1 ) of sinusoidal wave signals generated by a sinusoidal wave generator is brought...
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7492816 |
Adaptive equalization methods and apparatus
A system includes a programmable transmitter device (e.g., a PLD) connected to a programmable receiver device (e.g., another PLD) via a transmission medium for transmitting a high-speed data signal...
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7492826 |
Bidirectional buffered interface for crosspoint switch
A bidirectional crosspoint switch interface employs a pair of backward-connected transimpedance amplifiers of the type disclosed in the L. Enriquez U.S. Pat. No. 6,411,163, and associated scaling...
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7492840 |
Adaptive electronic transmission signal cancellation apparatus for full duplex communication
An adaptive electronic transmission signal cancellation circuit for separating transmit data from receive data in a bidirectional communication system operating in full duplex mode is disclosed....
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7492812 |
RFID transceiver device
An RFID transceiver device is capable of high sensitivity reception, by the reduction of noise, irrespective of the distance to the tag. The RFID transceiver device includes a delay circuit between...
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7486721 |
Physical layer device having an analog serdes pass through mode
A physical layer device (PLD) includes a first serializer-deserializer (SERDES) device and a second SERDES device. Each SERDES device includes an analog portion with a serial port that is...
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7486720 |
Training frames for MIMO stations
A method transmits training frames in a MIMO system. A long sequence of training frames is transmitted from a station B to a station A via a channel of the MIMO system, in which the station A...
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7486719 |
Transcoder and code conversion method
A two-way conversion transcoder comprising a spectrum parameter calculation circuit that calculates a spectrum parameter for a signal produced by decoding a first code; a coefficient calculation...
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7483688 |
Network device with hybrid-mode transmitter
A network device comprises a hybrid-mode transmitter for transmitting a differential transmission signal at a first transmission rate or a second transmission rate. The network device includes a...
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7484155 |
Analog base-band test apparatus and method by enhanced combination of JTAG and memory in mobile communication system
An analog base-band (ABB) chipset of a mobile communication system comprises a memory configured to store a test pattern, a test control unit configured to generate a control signal during a test...
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7480263 |
Method and device for bi-directional half duplex transmission of data
A method and a device for bi-directional transmission of data are provided such that an interface for digital communication on a signal line is obtained which is suited for automotive use. In...
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7480326 |
Channel diagnostic systems and methods
A system includes an adaptive filter coupled to a communication channel. The adaptive filter includes a set of adaptive filter coefficients. A memory stores a predetermined set of filter...
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7480491 |
Wireless programmable logic devices
A wireless programmable logic device contains a wireless component and a programmable logic component. A remote wireless host can be used to program the programmable logic device. Some product...
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7477683 |
Periodic DMT signals with cyclic extension
A method for digital communication includes generating time-domain symbols having a predetermined symbol duration in accordance with a discrete multi-tone (DMT) modulation scheme. A cyclic...
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7477702 |
Apparatus, and associated method, for selecting a switching threshold for a transmitter utilizing adaptive modulation techniques
Apparatus, and an associated method selects an adaptive switching threshold level responsive to a constrained optimization scheme. The switching level is selected by an LRI function forming a...
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7474693 |
Electronic component notably for decoding signals modulated by a digital quadrature modulation over a large number of orthogonal carriers
An input/output terminal receives a multi-channel analog signal within a predetermined frequency band, and transmits a single-channel analog signal within this frequency band. A tuning module has a...
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7474694 |
Methods, devices and computer program products for adaptively adjusting passbands of high-pass filters of asymmetric digital subscriber link (ADSL) modems
The present invention provides methods and related devices for adjusting the passband and/or cutoff frequency of a high-pass filter of an ADSL modem. A level of a received ADSL signal is compared...
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7474716 |
Data recovery circuits using oversampling for maverick edge detection/suppression
A data recovery circuit employing an oversampling technique. The incoming serial data stream with jitter is oversampled by means of the multiple phases of a reference clock to produce data samples....
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7471742 |
Method and construction for space-time codes for AM-PSK constellations
Space-time codes are developed for multi-radii AM-PSK constellations. Further, a “super-unified” space-time code construction is developed that incorporates multi-radii AM-PSK codes with the...
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7471721 |
System and method for scrambling the phase of the carriers in a multicarrier communications system
A system and method that scrambles the phase characteristic of a carrier signal are described. The scrambling of the phase characteristic of each carrier signal includes associating a value with...
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7469004 |
Transmitting and receiving arrangement for radios having a baseband component, a radio-frequency component and an interface arranged in between them
A transmitting/receiving arrangement has a baseband component and a radio-frequency component that are connected via an interface. The interface has a first differential unidirectional data link...
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7466746 |
Single amplifier presale processing circuitry
An device and method for a pre-sampling processing is disclosed. The pre-sampling device includes a single amplifier having a virtual ground node, and a feed back circuit connected from an output...
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7467056 |
Method and apparatus for aligning multiple outputs of an FPGA
Each data lane connected to a FPGA and forming part of a SFI channel may be trained independently to enable the outputs from the FPGA to be aligned. In operation, a known fixed pattern is repeated...
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7463706 |
System and method for performing on-chip synchronization of system signals utilizing off-chip harmonic signal
Aspects of the invention provide a method and system for reducing signal distortion within an on-chip transitive module. In response to receipt of a signal bearing at least one external clock...
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7463674 |
Tables for determining the signal strength of a received signal in a fibre optics transceiver
A transceiver that includes a receiver configured to receive a data signal, a controller, a first memory that includes a first table associated with a first set of gain values and a second table...
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7463675 |
Direct digital access arrangement circuitry and method for connecting to phone lines
An isolation system is provided that is suitable for use in telephony, medical instrumentation, industrial process control and other applications. Preferred embodiments of the invention comprise a...
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7460584 |
Networking methods and systems
A network system includes integrated radio transceivers and digitizers, integrated baseband processors and device controllers, digital interfaces there between, and architectures and partitions for...
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7460587 |
Electronic circuit for performing fractional time domain interpolation and related devices and methods
A clock offset compensation arrangement may include a fractional interpolator for applying a trigonometric interpolation to a sampled input signal according to a clock offset signal. It uses...
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7460586 |
Selective signal coupling in high speed I/O circuits
According to an example embodiment, a data-transfer circuit transfers high-speed input data toward an output port by coupling the data circuit selectively through a resistive-impedance circuit and...
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7460585 |
Methods and systems for detecting defects in serial link transceivers
Methods and systems for detecting defects in serial link transceivers. Defect detection includes detecting open circuits in one or more of the transmission lines, detecting short circuits between...
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7453928 |
Data transmission device
A data transmission device is applied to a network apparatus having an automatic crossover function, and is connected to a transmission control unit, such that the transmission control unit detects...
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7453927 |
Method and apparatus to compensate AM-PM delay mismatch in envelope restoration transmitter
An RF transceiver includes an Envelope Restoration (ER) transmitter (TX) and a receiver (RX). A method includes providing the TX with a programmable delay element in at least one of an AM path and...
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7450911 |
Multiplexed wireless receiver and transmitter
A baseband receiver having quadrature analog outputs and a plurality of analog control and status signals and a transmit modulator having analog quadrature inputs and a plurality of analog control...
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7443910 |
PHY control module for a multi-pair gigabit transceiver
A method for controlling operation of a multi-pair gigabit transceiver. The multi-pair gigabit transceiver comprises a Physical Layer Control module (PHY Control), a Physical Coding Sublayer module...
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7444440 |
Method and device for providing high data rate for a serial peripheral interface
An improved high performance scheme is provided with a serial peripheral interface (SPI) to enable microcontroller-based products and other components and devices to achieve a higher serial...
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7443911 |
Communication devices capable of using system clock inputs for embedded television applications
According to one embodiment of the present invention, a device may receive one of multiple frequencies at a clock input of the device; determine which of the multiple frequencies is received; and...
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7440495 |
FPGA having AC coupling on I/O pins with an effective bypass of the AC coupling
DC balance is obtained in an integrated circuit (IC) having I/O pins with AC coupling by effectively bypassing the AC coupling. The DC balance is accomplished by mixing in a known, low frequency...
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7440496 |
Apparatus and method to extend communication range
Briefly, in accordance with an embodiment of the invention, an apparatus to extend communication range is provided. The apparatus may be coupled to a wireless local area network (WLAN) access point...
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