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Class 375/219 - TRANSCEIVERS


Subclass of Class 375 - Pulse or digital communications
Definition: Subject matter in which a transmitter and a receiver are
No. of patents: 1934
Last issue date: 02/14/2012


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NumberTitleIssue Date
7292627System 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 each carrier signal and computing a phase shift for each carrier signal...
11/06/2007
7293103Enhanced channel access mechanisms for a HPNA network
A method and a system is disclosed for providing access in a centralized manner to a communications medium that is suitable for allowing use of a plurality of Home Phoneline Network Association (HPNA) v2 frames. A plurality of messages are transmitted between a firs...
11/06/2007
7292831Radio communicate method and system
A transmitter 1 transmits from a transmission antenna 7 a mixture signal containing a radio-frequency (RF)-band modulated signal, and a portion of power of a local oscillation signal used for frequency conversion. Meanwhile, a receiver 8 detects...
11/06/2007
7292835Wireless and wired cable modem applications of universal frequency translation technology
Frequency translation and applications of same are described herein, including cable modem applications. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and fil...
11/06/2007
7291938Power supply apparatus and method based on parasitic power extraction
Power supply apparatus and method based on parasitic power extraction is disclosed. Power is extracted from signals that are inbound and/or outbound from an equipment. The extracted power is converted to dc voltages for a device associated with the equipment. The po...
11/06/2007
72926493G radio
A homodyne receiver is provided for receiving GSM and UMTS transmissions. The receiver may also be used for other transmission schemes. The receiver includes an electronically reconfigurable low pass filter and an off set generator for providing DC offset correction...
11/06/2007
7292608Method and apparatus for transferring synchronous optical network/synchronous digital hierarchy(SONET/SDH) frames on parallel transmission links
The present invention relates to methods and systems for transferring SONET/SDH frames between nodes by mapping the SONET/SDH frames onto individual channels of data and transferring the SONET/SDH frames over parallel transmission links. More particularly, the metho...
11/06/2007
RE39902Communication system
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 second, data streams. The signal points are divided into signal point g...
10/30/2007
7289826Method and apparatus for beam selection in a smart antenna system
A method of beam selection in a smart antenna system is provided. The method includes receiving a plurality of uplink beams by a plurality of receivers, each corresponding with one of the plurality of uplink beams. Each uplink beam includes signals transmitted by a ...
10/30/2007
7289781Device for receiving digital signals
A device for receiving digita1 signals comprising at least one receiving antenna for receiving signals, a measuring means for determining parameters of relevance to signal quality of signals received by the antenna, and a digitizer for the signals received by the an...
10/30/2007
7289461Communications using wideband terminals
A call setup procedure is presented to permit vocoder bypass, which will allow the transmission of wideband speech packets between wideband terminals over narrowband transmission constraints. In addition, methods and apparatus are presented that allow the conversion...
10/30/2007
7289474Apparatus and method for communication
An eigen value expansion section 103 calculates eigen values and eigen vectors in a correlation matrix or covariance matrix of input signals. When the ratio between a maximum eigen value and other eigen values is equal to or lower than a threshold, an assignm...
10/30/2007
7289573Modulator/transmitter apparatus and method
Method and apparatus for providing an amplified modulated radio frequency signal, the method comprising the steps of providing a radio frequency (RF) oscillatory signal, generating from the RF oscillatory signal and an input signal a pair of phase modulated phase co...
10/30/2007
RE39890Communication system
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 second, data streams. The signal points are divided into signal point g...
10/23/2007
7286612Method of transmitting data from a transmitter to a receiver, and a radio system
The invention relates to a method of transmitting data from a transmitter to a receiver in a radio system, and to a radio system. The method includes the following: channel-coding the data using selected channel-coding; dividing the channel-coded non-interleaved dat...
10/23/2007
7286663Asymmetric digital subscriber line system capable of automatically controlling receipt gain and method thereof
A digital communication system includes a transmitter and a receiver and communicates on telephone line. Receipt gain of the digital communication system is controlled in accordance with the following. Initialization signals generated at the transmitter and transfer...
10/23/2007
7286599Method and design of data communications transceiver for ultra wide band (UWB) operation in 3.1 GHz to 10.6 GHz frequency band
An ultra wide band (UWB) communication system includes a channel filter bank to cover the 3.1 to 10.6 GHz band in channels having approximately equal bandwidth. A transmitter and a receiver may share the filter bank when the communication system is configured as a t...
10/23/2007
7286516Methods 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 the signaling message. The message copy function forwards the copied ...
10/23/2007
7286519Method and device for synchronizing to a CDMA-signal that contains a pilot sequence
A method for synchronizing to a CDMA-signal that contains a pilot sequence, overlaid with data sequences, comprises the following process steps: correlating the total signal consisting of the transmitted pilot sequence and transmitted data sequences with a reference...
10/23/2007
7286557Interface and related methods for rate pacing in an ethernet architecture
An interface and related methods for rate pacing in an Ethernet architecture is described herein. ...
10/23/2007
7286842Method and apparatus for supporting direct link communication in TDD CDMA system
A method for supporting P2P communication between two user equipments in TDD CDMA systems, performed by user equipment, comprising: receiving signals transferred via the downlink control channel from network system; acquiring the timeslot allocation information and ...
10/23/2007
7286481Wireless network adapted to transmit channel side information and method thereof
Briefly, in accordance with one embodiment of the invention, a wireless network may include transmitters that may transmit information over a channel. the transmitter may also transmit channel side information over the channel. Further, the transmitters may adjust w...
10/23/2007
7286508Signal format in multi-carrier CDMA transmission system
A multi-carrier CDMA transmission system signal format that reproduces data symbols, aligns the reproduced data symbols along a frequency axis, multiplies the reproduced data symbols by a spreading code, and conducts multiplex transmission of data using a plurality ...
10/23/2007
7283596PAM-4 data slicer having symmetrical offset
A PAM-4 data slicer includes first, second, and third comparators which provide first, second, and third thresholds, respectively. Each of the comparators has an offset. The first and third comparators have an offset generating arrangement at their outputs to provid...
10/16/2007
7283602Half-rate clock and data recovery circuit
A half-rate clock and data recovery (CDR) circuit includes a half-rate phase detector for detecting phases of an input signal and a half-rate clock, a charge pump circuit, a low-pass filter and a voltage controlled oscillator for feeding the half-rate clock back to ...
10/16/2007
7283851Power saving mode for receiver circuit blocks based on transmitter activity
To reduce power consumption, receiver circuit blocks within a wireless device are biased with less current whenever possible while still achieving the desired performance. The receiver circuit blocks may include a voltage controlled oscillator (VCO) that generates a...
10/16/2007
7283584Direct 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 capacitive isolation barrier across which a digital signal is communi...
10/16/2007
7283595Ultra 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 with n bit data to be transmitted at a predetermined time period, a la...
10/16/2007
7284268System and method for a routing device to securely share network data with a host utilizing a hardware firewall
A system and method for providing the ability to selectively share data in a network routing device with an associated host. The system and method employs a hardware firewall in the routing device which restricts the host such that it can only access areas in shared...
10/16/2007
7283481Auto detection of copper and fiber mode
Methods and systems for operating a physical layer device (“PHY”) in an Ethernet network include methods and systems for detecting active link partners and for selecting a mode of operation based on detected active link partners. The PHY monitors fiber link medi...
10/16/2007
7283158Digital 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 the digital camera are transmitted from a personal computer, an externa...
10/16/2007
7283583Adaptive 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 level. The actual noise level is measured at a receiver on a communic...
10/16/2007
7280061Digital-to-analog converter using a frequency hopping clock generator
Method and device for reducing the signal images at the output of a digital/analog converter. In a method for reducing the signal images at the output of a digital/analog converter, a frequency hopping clock generator provides a digital data signal whose data rate i...
10/09/2007
7280469Efficient implementation of large size FFT
A system and method of implementing a Fast Fourier Transform (FFT) function in a high data rate communication network. The communication network, employing technology such as VDSL and DMT or FDM, frequently implements a FFT at a transmitter to transfer frequency dom...
10/09/2007
7280060Communication driver
An Ethernet controller includes a plurality of sets of digital-to-analog converters (DACs). Each DAC receives an input signal and provides an output signal. Each of the plurality of sets of DACs includes a plurality of sets of replica current circuits. Each DAC incl...
10/09/2007
7280507Radio LAN data transmission system, radio LAN data transmission method, and computer product
If a radio LAN apparatus moves from a communication range of a first access point to a communication range of a second access point, and if communication link between the radio LAN apparatus and the first access point is broken, a memory control section stops transm...
10/09/2007
7280545Complex adaptive routing system and method for a nodal communication network
A complex adaptive routing system and method for routing data packets in a nodal network, in particular, an ad-hoc nodal network. Each data packet contains data representing its routing strategy for routing to a destination node. When a node receives the data packet...
10/09/2007
7280555System and method employing algorithms and protocols for optimizing carrier sense multiple access (CSMA) protocols in wireless networks
A system and method for achieving enhanced CSMA/CA which improves channel availability and quality of service (QoS) in a wireless communications network. The system and method establish channels to enable communication between nodes in a communication network, based...
10/09/2007
7280590Receiver 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 termination circuit and an AC coupled bias circuit. The DC matched t...
10/09/2007
7280807Initiator 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, positioned within the cavity, for receiving a recipient identification cod...
10/09/2007
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