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Class 375/259 - SYSTEMS USING ALTERNATING OR PULSATING CURRENT


Subclass of Class 375 - Pulse or digital communications
Definition: Subject matter using alternating, sine, or similar wave
No. of patents: 1202
Last issue date: 05/29/2012


1                      
NumberTitleIssue Date
8189694Transmitting and receiving arrangement with a channel-oriented link
A transmitting and receiving arrangement as well as a method for transmission of monitoring and/or payload data in a transmitting and receiving arrangement for a wirefree communications system has a device which processes baseband for processing digital signals to f...
05/29/2012
8184724Wireless communication system and wireless communication method
In a wireless communication system in which a sending side derives transmit weight vectors based on feedback information and carries out precoding, performance degradation is caused when the channel at the time when the transmit weight vectors are derived and the tr...
05/22/2012
8175174Communication system, communication method, transmitting apparatus and receiving apparatus
A communication system, communication method, transmitting apparatus, and receiving apparatus are disclosed herein. The communication system includes: a first clock correlating unit, adapted to correlate a clock to be transmitted with a clock of a data frame at a tr...
05/08/2012
8170125Subdimensional single-carrier modulation
A method for modulating a sequence of data symbols such that the transmit signal exhibits spectral redundancy. Null symbols are inserted in the sequence of data symbols such that a specified pattern of K data symbols and N−K null symbols is formed in every period ...
05/01/2012
8155215Transmission system, transmitter, receiver, and transmission method
There is provided a circuit constituted by small-sized and simple logical gates which reduces the bit errors generated in a data sequence received by a receiver. A transmission system, in which a data sequence is transferred, includes a transmitter that transmits a ...
04/10/2012
8149929Receiver and method for processing radio signals using soft pilot symbols
A receiver and method for receiving and processing a sequence of transmitted symbols in a digital communication system utilizing soft pilot symbols. A set of soft pilot symbols are transmitted with higher reliability than the remaining symbols in the sequence by mod...
04/03/2012
8139654Device and methods for biphasic pulse signal coding
A method for coding time signals based on generating an asynchronous biphasic pulse train is provided. The method includes generating response signals based upon one or more input signals. A pulse comprises a positive pulse if a voltage of the response signal is gre...
03/20/2012
8139655System and method for effectively transferring electronic information
An architecture for electronically transferring information includes a transmitter with an encoder that performs a parity encoding procedure. The encoder creates parity blocks for embedding in transmission packets. The parity blocks may be based upon data segments f...
03/20/2012
8139653Multi-channel galvanic isolator utilizing a single transmission channel
A galvanic isolator having a transmitting section and a receiving section is disclosed. The transmitting section includes a frame input circuit, a data encoder, and a data transmitter. The frame input circuit receives an input data frame that includes a plurality of...
03/20/2012
8139657VUTP hybrid command management authority
Embodiments of an a autointelligent sensing and analysis systematic method that includes differentiating between digital and analog communication, controlling access authorities both locally and remotely, and making intelligent analysis on static or dynamic utilizat...
03/20/2012
8139656Method and system for linear processing of an input using Gaussian belief propagation
Methods and systems for processing an input. An input vector y is received that represents a noisy observation of Ax, where A is a data matrix and x is a data vector of unknown variables. Data vector x is recovered from the received input vector y via an iterative m...
03/20/2012
8121202Power-line communication method, power-line communication device, and power-line communication system
To provide a power-line communication method, a power-line communication device, and a power-line communication system, which can make communication with high communication efficiency even when the condition of a power line is changed. In step S101, a noise d...
02/21/2012
8116387Method and system for a digital polar transmitter
Aspects of a system for a digital polar transmitter may include a digital to analog converter circuit (DAC), for which an analog voltage and/or current step size generated in response to a sequence of received binary numbers may be dynamically programmable based on ...
02/14/2012
8107542Soft decoding of coded bit-streams
A wireless system may transmit multiple bit streams representing the same information but with the coded bits being transmitted with different repeat transmission factors. The receiver may derive appropriate combining metrics to optimize decoder performance, while e...
01/31/2012
8094731System and method for transferring telemetry data between a ground station and a control center
Disclosed herein are systems, computer-implemented methods, and tangible computer-readable media for coordinating communications between a ground station, a control center, and a spacecraft. The method receives a call to a simple, unified application programmer inte...
01/10/2012
8081685Communication control apparatus, communication terminal apparatus, wireless communication system, and transmitting method
To determine a length of a guard interval based on performance provided in a communication terminal apparatus. A communication control apparatus 100 is a communication control apparatus that adds a guard interval to transmit a symbol to a communication termin...
12/20/2011
8059726Wireless transmitting and receiving device and method
A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used...
11/15/2011
8054893Optimum radio communication method with radio frame variable control and radio communication system using the same
Not only pilot channel symbols but also control channel symbols can be flexibly decreased in a radio communication system, which includes a transmission side apparatus transmitting a data frame where a plurality of continuous or discontinuous frequency areas are ass...
11/08/2011
8050334Signal encoder, signal decoder, signal encoding method, signal decoding method, program, recording medium and signal codec method
According to the present invention, a shift amount Sj−1 of the previous frame is held in a shift amount buffer of an integer signal coder. At least as many last sample values in the previous frame as the number of an order P used in linear predictive an...
11/01/2011
8050335Equal phase combining technique for a robust OFDM system
A technique for an equal phase combining for a robust orthogonal frequency division multiplexing (OFDM) system under high delay spread channel is disclosed. In one embodiment, a method includes receiving and synchronizing transmitted OFDM symbols having cyclic prefi...
11/01/2011
8040958Method for measuring correlation between frequency response functions
A method for measuring correlation between frequency response functions. A first frequency response function and a second frequency response function are acquired. The amplitude of the first and second frequency response functions are tabulated at a plurality of cor...
10/18/2011
8023573Wireless communication system, wireless communication device, and valid path detection method therefor
A wireless communication system according to an exemplary aspect of the present invention is a wireless communication system which performs wireless communications between a first wireless communication device and a second wireless communication device, wherein the ...
09/20/2011
8019005Data communication system, data decoding apparatus and method therefor
A reception program maps, by PC mapping, the values of message data to symbol x, which describes the combinations of Mp carrier waves of Mc carrier waves with value-1 bits corresponding to the carrier waves to be transmitted, and receives the t...
09/13/2011
8005153Method and apparatus for increasing the number of orthogonal signals using block spreading
Embodiments of the invention apply block spreading to transmitted signals to increase the number orthogonally multiplexed signals. The principle of the disclosed invention can be applied to reference signals, acknowledgement signals, and channel quality indication s...
08/23/2011
7986735Digital signal transmission apparatus and method, digital signal receiving apparatus and method, and digital signal transmission system
A digital signal transmission apparatus that transmits a digital signal to another apparatus via a coaxial cable connected therebetween includes a signal divider configured to divide a digital signal to be transmitted into a plurality of signal groups; a plurality o...
07/26/2011
7983349High bandwidth data transport system
A telecommunication interface is disclosed. One method of the invention provides for interfacing with guided line networks that receive and transmit data using ultra-wideband pulse transmissions. ...
07/19/2011
7983348System and method for signal transmission
A system and method for signal transmission, a signal modulation and a signal demodulation device, and a method for signal transmission are disclosed. One embodiment includes transmitting a first pulse signal via a first line; and transmitting a second pulse signal ...
07/19/2011
7978771Encoder, decoder, and their methods
An encoder generating a decoded signal with an improved quality by scalable encoding by canceling the characteristic inherent to the encoder and causing degradation of quality of the decoded signal. In the encoder, a first encoding section (102) encodes the i...
07/12/2011
7974349Optimum perturbation apparatus and method in a multi-antenna multi-user communication system
An optimum perturbation apparatus and method in a multi-antenna, multi-user communication system are provided. In the optimum perturbation method, upon receipt of modulation symbols, channel responses are decomposed into eigenvalues and eigenvectors by Single Value ...
07/05/2011
7970063Variable liftoff voltage process field device
A field transmitter includes field device circuitry configured to measure or control a process variable. A first process control loop terminal is configured to couple to a two-wire process control loop which carries a loop current. A second process control loop term...
06/28/2011
7957473Data transmission apparatus enabling communication without being interfered by environmental noise
A data transmission apparatus is provided, which is capable of performing good communication with a noncontact data carrier under the circumstances where pulse noise is generated. A noise detection circuit in a reader/writer detects a generation period of noise cont...
06/07/2011
7944979High bandwidth data transport system
The present invention provides for a methods, system, and apparatus relating to data transmission. One method of the present invention includes representing data using at least one ultra wideband pulse, sending the at least one ultra wideband pulse over an electrica...
05/17/2011
7936831Methods and apparatus for implementing and using an in-band rate indicator
Downlink traffic channel data rate options and methods of indicating to a wireless terminal a utilized downlink data rate option are described. The downlink traffic channel rate option for a segment is conveyed using an assignment signal and/or a block in the downli...
05/03/2011
7933340Communications system, receiver apparatus, transmission mode proposal method, and program
A communications system has a transmission apparatus for transmitting a signal and a reception apparatus for receiving the signal. The reception apparatus includes: a transmission mode table; a propagation path condition detecting block; a transmission mode extracti...
04/26/2011
7929617Method and apparatus to generate a continuous phase modulation waveform that is symmetric and periodic
A technique is provided to generate a sequence of symbols to be transmitted, comprising transmitting a block of symbols having data and redundancy symbols, the redundancy symbols generated based on the data symbols, a first part of the redundancy symbols transmitted...
04/19/2011
7929618Multiplier-less data processing techniques and related implementations adapted for use in polar modulator
A modulator performs data processing operations such as interpolation and fractional delay adjustment on amplitude and/or phase data by performing shift operations in lieu of multiplication operations. In selected embodiments, the modulator samples input data at a f...
04/19/2011
RE42291System and method for processing digital visual interface communication data signals and display data channel communication signals over a transmission line
A digital communication system for transmitting and receiving Digital Visual Interface (DVI) communication data signals and Display Data Channel (DDC) communication signals over a transmission line comprises an open-loop equalizer circuit and a DDC extension circuit...
04/12/2011
7920634Editing system, editing controlling apparatus, and editing controlling method
A splicer/transcoder device that interfaces with a material archiver/server using a stream. The splicer/transcoder device interfaces with an editor and switcher using a base band signal. In a predetermined region including at least an edit point, a transcoding proce...
04/05/2011
7912134Frame building in the presence of ARQ-enabled traffic
When building a sub-frame for a wireless transmission that distributes the data over multiple simultaneous sub-channels, fragmenting the data to fit into the sub-frame may leave wasted space in the sub-frame because the minimum allowable size of the fragments leaves...
03/22/2011
7907669Low-detectability communication between a transmitter and receiver
A method for low-detectability communication between a transmitter and receiver is provided. The method including: transmitting first data from the transmitter according to at least one of a first timing, modulation, and frequency; appending the first data, prior to...
03/15/2011
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