Matches 51 - 100 out of 250 < 1 2 3 4 5 >
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7003064 Method and apparatus for periodic phase alignment  
In one form, apparatus for aligning clock signals includes first and second logic circuitry for receiving respective first and second clock signals. The first and second clock signals are...
6999543 Clock data recovery deserializer with programmable SYNC detect logic  
In a CDR (clock data recovery) deserializer, a clock divider receives a recovered clock signal (SCLK) and generates a divided clock signal (RPCLK). The frequency of the divided clock signal is...
6990123 Method and apparatus for redundant transmission over TDMA optical networks  
Communication between a burst manager and plural remote terminals over a first passive optical network (PON) and a second PON, with each PON having a downstream portion and an upstream portion,...
6980824 Method and system for optimizing transmission and reception power levels in a communication system  
A method and system are disclosed herein for determining optimum power level settings for a transmitter and receiver pair of a communication system having a plurality of transmitter and receiver...
6973146 Resampler for a bit pump and method of resampling a signal associated therewith  
A resampler, method of resampling a signal and a bit pump and transceiver employing the same. In one embodiment, the resampler includes an interpolation stage, coupled to an input of the resampler,...
6968025 High-speed transmission system having a low latency  
In addition to a first transmitter circuit, a plurality of transmission lines and a first data processing circuit in the receive side, so as to cause a DLL circuit to be regulated that regulates...
6954447 Method and apparatus for uplink synchronization in wireless communications  
A method and system for uplink (UL) synchronization of an uplink transmission from a plurality of wireless transmit/receive units (WTRUs) to a Node-B in a code division multiple access (CDMA)...
6904111 Asynchronous resampling for data transport  
A data and clock signals from a source ( 12 ) are transmitted from a location ( 10 ) to a distant location ( 40 ) together with a phase signal which estimates the difference in phase between a data...
6873662 Wireless communication system having adaptive threshold for timing deviation measurement and method  
A system and method of wireless communication determines received signal timing deviation which is used to generate a timing advance for adjusting User Equipment (UE) transmissions. An adaptive...
6845136 Method to synchronize data and a transistor and a receiver realizing said method  
A method to realize synchronization in a receiver (RX), of data (DAT) sent from a transmitter (TX) to the receiver (RX), with a signal (SIG) available in the receiver (RX). The method includes the...
6829307 Express bit swapping in a multicarrier transmission system  
Methods and devices for adaptively changing a parameter (such as sub-carrier bit allocation and/or gain) in a multi-carrier communication signal are described. In a method aspect, a unit that...
6810028 Open loop timing control for synchronous CDA systems  
Method and apparatus for maintaining synchronization in a CDMA communication system by operating closed loop timing control between a radio base unit and subscriber units, operating open loop...
6765976 Delay-locked loop for differential clock signals  
A significantly more efficient implementation of a DLL for systems using two separate clock signals, whereby a single DLL circuit is used to provide for locking of both clock signals. According to...
6754286 Transmit diversity method and system  
The invention relates to a transmit diversity method for a wireless communication system comprising a transmitting element and at least one receiver, wherein a transmission signal is transmitted...
6694469 Method and an apparatus for a quick retransmission of signals in a communication system  
A method and an apparatus for quick retransmission of signals in a communication system are disclosed. A transmitting terminal, e.g., a base station, transmits signals in a form of packets to a...
6654422 Efficient automatic repeat request method using variable length sequence numbers  
A variable length sequence number is used to identify data units in a communication channel. The sequence number associated with the most recent data that has been received successfully and the...
6643341 Voice and image signal transmission method using code output  
A method employing multisignal encoded start pulses and end pulses for data transmission by use of radio waves, carries out encoding so that a very large number of kinds of patterns (not less than...
6628674 Apparatus depending on timing source for synchronization  
An apparatus which depends on one of a plurality of master clocks as a timing source includes a timing-dependency-direction-identifier-extraction unit which detects an identifier indicative of a...
6587526 Apparatus and method for timing synchronization in OFDM-based wireless systems  
A prescribed signal transmission channel parameter is estimated by employing a unique arrangement and/or method that does not require the estimation of all the signal channel parameters....
6549757 Method and system for assessing, at reception level, the quality of a digital signal, such as a digital audio/video signal  
The invention concerns a method and a system for assessing the quality of a broadcast digital signal. A reference signal (sref) is generated ( 1001 ) from an initial signal (so) and jointly...
6539072 Delay locked loop circuitry for clock delay adjustment  
Delay locked loop circuitry for generating a predetermined phase relationship between a pair of clocks. A first delay-locked loop includes a delay elements arranged in a chain, the chain receiving...
6532269 Data transmitter, data receiver, processor, equipment managing device, equipment managing system, data transmitting-receiving system, and medium  
When transmitting encoded video data and audio data, a transmitter 201 also transmits a decoding method 107 generated by decoding-method generation means 203. In the case of a receiver 202 ,...
6519291 Reduction of interference in discrete multi-tone (DMT) based communications systems  
An Asymmetric Digital Subscriber Loop (ADSL) Discrete Multi-Tone system has disjoint and adjacent upstream and downstream channels. During the training phase of an ADSL connection, an ADSL DMT...
6496543 Method and apparatus for providing high speed data communications in a cellular environment  
A method and apparatus for transmitting digital data in a cellular environment. Adjacent cells of the cellular system are prevented from simultaneously transmitting data. Because the noise from...
6493034 Method and apparatus for remote adjustment of a time delay circuit of externally synchronized video transmitters  
In a method and apparatus for delaying propagation time of an external synchronizing signal transmitted from a receiver to transmitters which transmit a video signal to the receiver, each...
6487262 Synchronization and downconversion in TDM/TDMA systems  
In a fiber-to-the-curb telecommunications system a method of network synchronization is presented in which data is transmitted from a broadband network unit to devices in a residence on a...
6470057 Method for timing recovery and compensation in time-division-duplex wireless communications  
In a synchronous code division multiple access (SCDMA) time division duplex (TDD) communication system, a remote terminal uses both open loop and closed loop techniques for synchronization with a...
6459696 Method and system for avoiding data loss in communications systems  
A method and system for avoiding data loss in communications systems. The method and system achieve their objects via communications equipment adapted to do the following: designate a first...
6430245 Method for transmitting digital data over a capacitive interface with data integrity  
A method of using a capacitively coupled interface to increase the integrity of digital signals being transmitted across the interface includes transmitting signals between a first electronic...
6430241 Method and configuration for synchronizing system units  
The configuration and the method coordinate the operating clock signals of different communications devices with one another. The devices may thereby be connected to one another via a synchronous...
6332009 Method and apparatus for generating a line impairment learning signal for a data communication system  
A modem system includes a programmable synchronization signal format that can be configured at a first modem in response to a request received from a second modem. The synchronization signal format...
6313738 Adaptive noise cancellation system  
A power line adaptive noise cancellation system receives noise signals from house power lines and adaptively cancels the received noise from a power line input signal. The system includes a power...
6301289 To a telecommunication system using code division multiple access (CDMA)  
The invention relates to a telecommunication method, wherein: terminals communicate through a central station, uplink and downlink communications are coded with a spread spectrum sequence, and...
6266383 Clock reproduction circuit and data transmission apparatus  
A clock reproduction circuit capable of accurately reproducing a clock with a simple circuit structure and a data transmission apparatus capable of handling a wide range of transfer rates, having a...
6236623 System and method for synchronizing clocks in a plurality of devices across a communication channel  
A system and method is disclosed for synchronizing clocks in a plurality of devices connected by a communication channel. A master control device is coupled to one or more slave control devices,...
6212247 Method and apparatus for generating a programmable synchronization signal for a data communication system  
A modem system includes a programmable synchronization signal format that can be configured at a first modem in response to a request received from a second modem. The synchronization signal format...
6169753 Transmission device and signal transmission method in synchronous network  
This invention discloses a transmission device used as a node device for a trunk network and a signal transmission method in a synchronous network. The transmission device comprises a clock...
6137786 CDMA communication system and method  
In CDMA communications, a base station detects a difference between a reference phase of a spreading code and a phase of a received signal of each terminal station, and feeds a phase jump signal...
6133958 Broadcast video desynchronizer  
6125157 Delay-locked loop circuitry for clock delay adjustment  
Delay-locked loop circuitry for generating a predetermined phase relationship between a pair of clocks. A first delay-locked loop includes a set of delay-producing elements arranged in a chain, the...
6119016 Synchronizing base stations in a wireless telecommunications system  
A technique for synchronizing the timing signals in the base stations of a wireless telecommunications system is disclosed. In accordance with the illustrative embodiment of the present invention,...
6084934 Natural throttling of data transfer across asynchronous boundaries  
A data transmission system includes a sender and a receiver, both employing different clock rates and a data bus coupled between the sender and the receiver for transmitting signals therebetween....
6081568 Method and system for automatic setting of optimum number of waiting frames in automatic repeat request protocol  
In a data communication system with an automatic repeat request (ARQ) protocol, a method/system capable of setting an optimum value of the RTF, which is used for threshold value of waiting time...
6069927 Digital signal link  
A digital signal transmission apparatus, wherein at the time of normal data transmission, an output circuit of a transmitter unit selects transmission data SDAT and converts it to a differential...
6055285 Synchronization circuit for transferring pointer between two asynchronous circuits  
A synchronization circuit synchronizes the transfer of pointer values from a transmitting circuit operating in a first clock domain to a receiving circuit operating in a second clock domain,...
6041088 Rapid synchronization for communication systems  
Different subscriber units (14) transmit different burst signals to a base station (12) on a common frequency to which a base station demodulator (64) is already synchronized. The base station (12)...
6011956 Means for predicting fading state in radio communication system  
The object of the present invention is to provide a radio communication system capable of following change in fading. To attain the object, the transmitter in the radio communication system...
6005902 Providing timing to an external system  
Synchronizing a local timing unit to a central timing unit in a first switching system to determine the difference in timing between a connected external link and the local timing unit. This timing...
6002710 Timing recovery for a pseudo-random noise sequence in a direct-sequence spread-spectrum communications system  
In a digital communication system for voice signals, a system and method for recovering the timing of a pseudo-random noise (PN) sequence used for direct-sequence spreading and despreading of the...
5978419 Transmitter and receiver circuits for high-speed parallel digital data transmission link  
An information transfer system includes a transmitter and a receiver for transferring information over a differential communication link. The transmitter circuit includes a plurality of gated...
Matches 51 - 100 out of 250 < 1 2 3 4 5 >