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Pulse Or Digital Communications > Transceivers

Transceivers

Transceivers patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

11/20/14 - 20140341261 - Transmitter
Embodiments of the present invention provide a transmitter including a plurality of amplifier circuits, a plurality of antennas adapted to have different main transmit directions and a transformation unit. The transformation unit includes a plurality of inputs connected to the plurality of amplifier circuits and a plurality of outputs connected...

10/30/14 - 20140321514 - Synchronous data system and method for providing phase-aligned output data
Embodiments of a synchronous data system and method for generating phase-aligned output data are generally described herein. In some embodiments, the synchronous data system includes a plurality of transmitter-receiver (TX-RX) pairs, each associated with a delay-locked loop (DLL) and arranged to generate corresponding output data stream based on a high-speed...

10/30/14 - 20140321515 - Phase interpolator
A phase interpolator is provided. The phase interpolator includes a plurality of capacitors, a first input for a clock signal, a second input for a phase shifted clock signal, a reference input for a reference signal, and an output. The phase interpolator is configured to provide at its output an...

10/23/14 - 20140314130 - Harmonic data transfer in rotary wing aircraft
A rotary wing aircraft includes a rotor assembly includes a rotor sensor generating a rotor sensor time domain signal; a rotor transform module converting the rotor sensor time domain signal to a rotor sensor frequency domain signal; and a rotor transceiver for transmitting the rotor sensor frequency domain signal over...

10/23/14 - 20140314131 - Signal transceiver with enhanced return loss in power-off state
A signal transceiver with enhanced return loss in a power-off state includes a connector, a band-pass filter, a front-end module and an impedance transformation circuit. The impedance transformation circuit is coupled between the band-pass filter and the front-end module for transforming an input impedance of the signal transceiver, and includes...

10/16/14 - 20140307759 - Isolated serializer-deserializer
A first integrated circuit die receives input data from a plurality of input channels and combines the input data from the plurality of input channels into combined data. The first integrated circuit die transmits the combined data across an isolation communication channel. A second integrated circuit die that is coupled...

10/16/14 - 20140307760 - Universal platform module for a plurality of communication protocols
A communication system comprising a multi-protocol, multi-bearer sub-system is described herein. The sub-system is a universal platform module that can transmit and receive one or more information signals in one or more protocols using one or more bearer services. In one embodiment, the sub-system may form a portion of a...

09/25/14 - 20140286378 - Receiving circuit and communication circuit
A receiving circuit includes: an interpolation circuit that generates, by using an interpolation coefficient, output data including a data point and a boundary point from pieces of input data that are input in chronological order; a detection circuit that outputs a detection signal when the detection circuit detects a phase...

09/25/14 - 20140286379 - Multicarrier transmission system with low power sleep mode and rapid-on capability
A multicarrier transceiver is provided with a sleep mode in which it idles with reduced power consumption when it is not needed to transmit or receive data. The full transmission and reception capabilities of the transceiver are quickly restored when needed, without requiring the full (and time-consuming) initialization commonly needed...

09/18/14 - 20140269852 - Radio frequency transmitter noise cancellation
Transmitter noise cancellation may be applied on a channel by channel basis to active channels of an incoming radio frequency signal received at a receiver. A noise cancellation filter may be provided for each active channel in a predetermined signal band. Applying noise cancellation on a per active channel basis...

09/18/14 - 20140269853 - Reusing a single-chip carrier aggregation receiver to support non-cellular diversity
A wireless communication device configured for receiving multiple signals is described. The wireless communication device includes a single-chip carrier aggregation receiver architecture. The single-chip carrier aggregation receiver architecture includes a first antenna, a second antenna, a third antenna, a fourth antenna and a transceiver chip. The transceiver chip includes multiple...

09/18/14 - 20140269854 - Systems and methods for serial communication
This disclosure includes a point-to-point two-lineserial interface (TSI) suitable for use in a wireless communications device as well as in other applications. The TSI may employ a protocol providing multiple frame formats to achieve delivery of one type of message with a reduced latency and other messages at increased latencies....

09/18/14 - 20140269855 - Transmitter and receiver
A multicarrier transmitter has a first mode, in which the transmitter is configured to transmit a first component carrier signal modulated onto a first carrier by using a first LO signal, and a second mode, in which the transmitter is configured to transmit the first component carrier signal modulated onto...

09/18/14 - 20140269856 - Rf puck
An RF module including transmitting, receiving, and processing elements, capable of operating in a standalone mode or as part of an array of similar or identical modules. The RF module includes a radiator (205), transmit-receive circuitry (165), a digital receiver-exciter (160), a processor (100), and a data interface (150). The...

09/18/14 - 20140269857 - Adaptive non-linear interference cancellation for intermodulation distortion
A wireless communication device including two or more aggressor transmitters and a victim receiver that is adversely affected by intermodulation distortion (IMD) components associated with the signals transmitted by the two or more aggressor transmitters. Because the aggressor transmitters and the victim receiver are located on the same device, the...

09/18/14 - 20140269858 - Transmitter noise cancellation in a multi transmitter-receiver system
In a multi transmitter-receiver system, transmitter noise cancellation may be applied selectively for certain transmitters by exploiting asymmetries of the system. Hence, observation receiver(s) numbering less than the number of transmitters may be provided saving space and cost. Each observation receiver may selectively couple to a transmitter path and estimate...

09/18/14 - 20140269859 - Remote unit for communicating with base stations and terminal devices
A remote unit of a distributed antenna system is disclosed that can communicate analog RF signals with both base stations and terminal devices in a coverage zone serviced by the remote unit. In some aspects, the remote unit can include a signal processing module and a transceiver. The transceiver can...

09/18/14 - 20140269860 - Adaptive line equalizer for improving data communication over less than perfect power lines or transmission lines
Systems and methods for improving data communication over less than perfect power lines or transmission lines are described. The systems and methods allow for pushing out electrically any null within a frequency range of interest and/or for lossless transmission by providing impedance matching between communication devices and the transmission line....

09/18/14 - 20140269861 - Constellation map optimization for highly spectrally efficient communications
A method and system for optimizing symbol mapping in partial response based communications that are based on use of pulse-shaping that incorporates a predetermined amount of inter-symbol interference (ISI). Optimizing symbol mapping symbol mapping may comprise configuring optimized constellation mapping for use in mapping and/or de-mapping data communicated using the...

09/18/14 - 20140269862 - Wireless antenna system
A wireless antenna system for a terminal comprises an antenna structure and frontend ports for connecting to transmit and/or receive circuitry of the terminal. The antenna system is operable in a first radiation mode and a second radiation mode, wherein the modes are orthogonal. The circuitry is arranged to map...

09/11/14 - 20140254639 - Automatic compensation of transmit power of separate transmit chains in mimo communication
Systems and methods are disclosed for receivers of transmit chains of a MIMO system to receive transmit power information and to compute channel characteristics of the transmit chains to enable dynamic adjustment of the transmit power on the transmit chain to optimize an overall data throughput while meeting a maximum...

09/11/14 - 20140254640 - De-correlating training pattern sequences between lanes in high-speed multi-lane links and interconnects
Methods, apparatus and systems for de-correlating training pattern sequences for high-speed links and interconnects. The high-speed links and interconnects employs multiple lanes in each direction for transmitting and receiving data, and may be physically implemented via signal paths in an inter-plane board such as a backplane or mid-plane, or via...

09/11/14 - 20140254641 - Circuit and method for transmitting or receiving signal
A circuit, including a receiving path, for converting a first analog radio frequency (RF) input signal to a digital intermediate frequency (IF) input signal, wherein the first analog RF input signal includes a first signal component conforming to a first wireless transmission standard and a second signal component conforming to...

09/11/14 - 20140254642 - Methods and systems for high bandwidth chip-to-chip communications interface
Systems and methods are described for transmitting data over physical channels to provide a high bandwidth, low latency interface between integrated circuit chips with low power utilization. Communication is performed using group signaling over multiple wires using a vector signaling code, where each wire carries a low-swing signal that may...

09/11/14 - 20140254643 - Impulse noise management
A discrete multitone transceiver (DMT) includes a deinterleaver operable to de-interleave a plurality of bits. The DMT further includes: a forward error correction decoder operable to decode the plurality of bits, a module operable to determine, during Showtime, an impulse noise protection value, wherein the impulse protection value specifies a...

09/04/14 - 20140247860 - Codebook and codebook search
Briefly, in accordance with one or more embodiments, a codebook used to provide a precoding matrix indicator and/or channel state information comprises one or more rank-1 codewords and at least one or more rank-2 codewords exhibiting a nesting property with the rank-1 codewords, and one or more rank-2 codewords not...

08/28/14 - 20140241405 - Transceiver and communication method of digital subscriber line
The present invention discloses a transceiver of digital subscriber line (DSL) which supports a variety of DSL systems, comprising: a transmission circuit for receiving an output signal and generating a first DSL transmission signal or a second DSL transmission signal according to the output signal under the control of a...

08/28/14 - 20140241406 - Wireless communications system performing transmission and reception according to operational states of co-located interface apparatus and related wireless communications method there of
A wireless communications system co-located with an interface apparatus includes a radio subsystem. The radio subsystem includes a transmission circuit arranged for performing a radio transmission, and a reception circuit arranged for performing a radio reception when the interface apparatus operates in a first operational state. The interface apparatus operates...

08/21/14 - 20140233612 - Technique for optimizing the phase of a data signal transmitted across a communication link
A first transceiver is configured to transmit a first data signal to a second transceiver across a communication link. The second transceiver maintains clock data recovery (CDR) lock with the first signal by adjusting a sampling clock configured to sample the first data signal. When the communication link reverses directions,...

08/21/14 - 20140233613 - Wifi management interface for microwave radio and reset to factory defaults
WIFI management interfaces for microwave radio and reset to factory defaults are provided herein. Methods may include transmitting or receiving, on a dedicated management interface antenna of the wireless radio management signals, signals in a dedicated band for controlling operations of the wireless radio, and transmitting or receiving, on at...

08/21/14 - 20140233614 - Isolation communication technology using coupled oscillators/antennas
The present subject matter discusses, among other things, electrical isolation, and more particularly wireless electrical isolation methods and apparatus. IN an example, an electrical isolator can include a transmit circuit including a transmit antenna, and a receive circuit including a receive antenna. The transmit circuit can be configured to receive...

08/21/14 - 20140233615 - Packet detector
There are several exemplary ways to more efficiently communicate an out-of-domain seed to a receiver—in a first technique, the seed can be indicated in the header portion or data portion of a packet. For example, the header portion of the packet could contain one or more bit fields that indicate...

08/14/14 - 20140226701 - Re-configurable receiver architecture for cable transmission
A configurable transceiver and method of operation are disclosed that may dynamically switch between a direct-conversion mode and a direct-sampling mode based, at least in part, upon a frequency component of a receive and/or transmit signal. When in the direct-conversion mode, the transceiver may operate as a direct-conversion transceiver, and...

08/14/14 - 20140226702 - 4tx codebook enhancement in lte
Channel state information (CSI) feedback in a wireless communication system is disclosed. A precoding matrix is generated for multi-antenna transmission based on precoding matrix indicator (PMI) feedback, wherein the PMI indicates a choice of precoding matrix derived from a matrix multiplication of two matrices from a first codebook and a...

08/14/14 - 20140226703 - Method and apparatus for recursively computing equalizer parameters for multiple-input multiple-output (mimo) wireless communication channels
A wireless receiver includes an input module, a channel module, an equalizer module, and a decoder module. The input module receives a message over a wireless communication channel. The message includes a plurality of training fields and first data. The first data includes user data perturbed by the channel. The...

08/14/14 - 20140226704 - System and method for data scrambling to reduce the crest factor in an ofdm waveform
A method is provided for reducing the peak power level in a combination of orthogonal frequency division multiplexed (OFDM) tones. The method is particularly effective when the information to be communicated is digital data consisting of long patterns of “1”s or “0”s. The digital data of the message is combined...

08/07/14 - 20140219323 - Bus communication transceiver
A bus communication transceiver measures a delay time in response to a rising time of a signal and adjusts a falling waveform of the same signal based on the measurement result. A signal waveform, especially, a duty ratio can be adjusted in a predetermined standard range. Also, the bus communication...

07/31/14 - 20140211831 - Communication devices and methods for signal detection
A communication device is described comprising a receiver configured to receive a receive symbol vector resulting from a transmission of a transmit symbol vector from at least one transmitter to the receiver wherein the transmit symbol vector comprises a plurality of transmit symbols wherein each transmit symbol is associated with...

07/31/14 - 20140211832 - Base-t common mode testing in an ethernet subsystem
Systems and methods are provided for common mode testing for a system using an Ethernet subsystem. The Ethernet subsystem generates test signals that can be introduced at various points in the system to detect the effect of noise introduced by various elements of the system. By introducing test signals at...

07/31/14 - 20140211833 - Channel estimation using averaging and interpolation
A method of performing channel estimation includes receiving a frame that includes, for each subcarrier of a subset of subcarriers in the frame, a pair of pilot symbols in the subcarrier. The subcarriers of the subset are regularly spaced apart from one another in the frequency domain. Time-averaged channel estimates...

07/31/14 - 20140211834 - Low-power, high-speed transceiver
The present invention relates to a low-power and high-speed transmission and reception apparatus which reduces consumption power of a sending-end circuit by increasing a value of a termination resistor included in a sending-end circuit and a receiving-end circuit so that the value is greater than a characteristic impedance value of...

07/31/14 - 20140211835 - Signaling of sequence generator initialization parameters for uplink reference signal generation
A base station initializes pseudo-random sequence generators on which wireless devices base generation of uplink reference signals. The base station determines a first sequence from a first subset of possible initialization sequences for a sequence generator of a first device, and determines a second sequence from a second subset of...

07/24/14 - 20140204984 - Apparatus for calculating weights associated with a received signal and applying the weights to transmit data
An apparatus for modulating transmit data and adding a cyclic prefix to the transmit data is provided. The apparatus comprises: transceiver hardware that is capable of receiving receive data utilizing multiple input channels and includes at least one first wireless element that is orthogonal frequency division multiplexing-capable, and at least...

07/24/14 - 20140204985 - Digital transceiver with switched capacitor sampling mixers and switched capacitor amplifiers
Examples of a digital transceiver, a switched-capacitor sampling mixer, and an N-stage switched-capacitor amplifier are generally described herein. The digital transceiver may include a plurality of switched-capacitor sampling mixers and a plurality of N-stage switched-capacitor amplifiers. Each mixer samples a received differential RF signal. The pair of N-stage switched-capacitor amplifiers...

07/24/14 - 20140204986 - Apparatus and method for correcting iq imbalance
a detection unit for detecting IQ mismatch in an IQ signal; an analog calibration module comprising a first analog calibration mechanism for calibrating IQ mismatch in the phase component and a second analog calibration mechanism for calibrating IQ mismatch in the amplitude component; and a control unit for determining a...

07/17/14 - 20140198831 - Radio frequency signal transceiving and processing method, device, and base station system
A radio frequency signal transceiver includes: a transmission circuit configured to perform power amplification on an input first analog signal, wirelessly transmit the first analog signal after power amplification, and output the first analog signal after power amplification to a pre-distortion circuit; the pre-distortion circuit configured to convert the first...

07/10/14 - 20140192844 - Fully integrated dc offset compensation servo feedback loop
The fully integrated DC offset compensation servo feedback loop is an integrator that measures the output signal DC component, and then feeds back and subtracts the measured DC component from the input signal. A larger integrator time constant lowers the high pass corner frequency, which must be very small in...

07/10/14 - 20140192845 - Method and apparatus for an adaptive multi-antenna system
A method is used for reconfiguring an electronic device, having at least three antenna elements, between different antenna modes. The method includes configuring, by a controller, the electronic device into a first antenna mode, wherein at least two of the antenna elements are coupled together to operate as a single...

07/10/14 - 20140192846 - Rate adaptation for data communication
In some embodiments, a method includes receiving, at a receiver of a first device via a channel of a communication medium, multiple data transmissions. Each data transmission of the multiple data transmissions has a guard interval of multiple guard intervals, wherein the multiple guard intervals have different lengths. The method...

07/10/14 - 20140192847 - Rate adaptation for data communication
In some embodiments, a method includes receiving, at a first device via a channel of a communication medium, multiple data transmissions, wherein a code rate of multiple code rates is associated with each data transmission of the multiple data transmissions. The method includes determining, based on signal characteristics of the...

07/10/14 - 20140192848 - Sending information at a band edge within an orthogonal frequency-division multiplexing (ofdm) symbol
Technology is discussed for increasing the spectral efficiency of an Orthogonal Frequency-Division Multiplexing (OFDM) symbol. Spectral efficiency can be increased by adding information to a band edge of the OFDM symbol in connection with measures taken to reduce OOB spectral leakage from the OFDM symbol. Spectral leakage reduction measures can...

07/10/14 - 20140192849 - System, a device and a method for adjusting output power in a distributed amplifier system
A system comprises a first device and a second device. The first device comprises a receiver, a spectrum analyzer, a controller, an amplifier, a filter and a transmitter. The first device receives from at least one antenna a plurality of signals from different sources. The spectrum analyzer is coupled to...

07/10/14 - 20140192850 - Method and apparatus for eliminating the effects of frequency offsets in a digital communication system
The present invention aims at eliminating the effects of frequency offsets between two transceivers by adjusting frequencies used during transmission. In this invention, methods for correcting the carrier frequency and the sampling frequency during transmission are provided, including both digital and analog implementations of such methods. The receiver determines the...