Matches 101 - 150 out of 417 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
7177661 Communication between wireless access points over LAN cabling  
Apparatus for network communication includes a cable arranged to form a wired local area network (LAN), the cable comprising at least first and second conductors. A plurality of access points are...
7161895 OFDM-CDMA communication terminal apparatus and method  
An OFDM-CDMA transmission apparatus may include a first spreader that carries out spreading processing on a plurality of transmission signals using different spreading codes, respectively. A second...
7161998 Digital phase locked loop for regenerating the clock of an embedded signal  
The present invention relates to a system and method for generating a first clock frequency for a plurality of digital data bursts compressed in time, where each of the plurality of digital data...
7133396 Dynamic assignment of retransmission slots for enhanced quality in wireless communication links  
In wireless communication arrangements that utilize a transmission period of time followed by a retransmission period of time, the utilization and effectiveness of retransmission communications can...
7126926 Multi-tier wireless communications architecture, applications and methods  
Multi-tier system for digital radio communication. The multi-tier system has a first-tier base station with relatively long-range radio and has a second-tier base station with relatively...
7126943 Method and apparatus for interfacing a parallel connection  
A method and apparatus for interfacing a parallel connection, the parallel connection transmitting high bit-rate signals for a short distance. The method comprises: receiving a synchronous N-bits...
7120166 Scalable communication system using overlaid signals and multi-carrier frequency communication  
A communication system such as an OFDM or DMT system has nodes which are allowed to transmit continuously on one or just a few of the system's frequency sub-channels, while the other nodes avoid...
7110387 System and method for compensating timing error using pilot symbol in OFDM/CDMA communication system  
A timing error compensation system in an OFMD/CDMA communication system includes an analog-to-digital converter for converting an OFDM signal, comprised of a data symbol stream in which a pilot...
7110370 Method and apparatus for coordinating multi-point to point communications in a multi-tone data transmission system  
A variety of bidirectional data transmission systems that facilitate communications between a plurality of remote units ( 15 ) and a central unit ( 10 ) using a frame based discrete multi-carrier...
7103030 Adaptive frequency hopping strategy  
A technique for controlling the frequency allocation in the hop sequence of a frequency hopping digital communications system is presented. The hop sequence is initially formed such that...
7079633 Coding a masked data channel in a radio signal  
A system for supplementing an audio signal with auxiliary data in an inaudible channel. The system can include an audible radio signal source having at least a left channel and a right channel. A...
7079846 Control of network element supporting variable transmission modes  
There is disclosed a network in which there is provided a method of controlling a network element having variable transmission modes, comprising: defining the available transmission modes in the...
7075949 OFDM receiving device and OFDM receiving method  
The time required for switch the channel can be remarkably curtailed. When broadcasting signals through a plurality of information channels with an OFDM system, the plurality of information...
7058034 Phase shifted time slice transmission to improve handover  
The present invention provides methods and apparatus for a wireless system broadcasting a plurality of data packets to at least one wireless terminal. The wireless system comprises a plurality of...
7054296 Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation  
Frequency translation and applications of same are described herein, including wireless local area network (WLAN) applications such as IEEE Standard 802.11 WLANs. Such applications include, but are...
7050401 Monitoring system and method implementing test result display logic  
A channel plan with a corresponding test plan are implemented in connection with a plurality of nodes that communicate signals. The channel plan has one or more predefined specifications for each...
7039137 Method for processing OFDM signals simultaneously received via a multiple antenna system  
The aim of the invention is to process OFDM signals which are simultaneously received via a multiple antenna system having a plurality of separate receive channels. To this end, the channel...
7039399 Distribution of wireless telephony and data signals in a substantially closed environment  
A communication system is provided. The communication system includes a host unit that is adapted to communicate wireless telephony signals with a telephony network and adapted to communicate...
7023815 Reassigning physical channels of a user service experiencing high interference levels in a hybrid wireless communication system  
Physical channels of a user service experiencing high interference levels are to be reassigned in a hybrid time division multiple access/code division multiple access communication system. Time...
7020101 Method of implementing a repeater, and a transceiver unit  
A method of implementing a repeater in a data transmission system, and a transceiver unit for a data transmission system is provided, whereby the transceiver unit includes a first and a second...
7020164 System and method for special signaling with customer premises equipment  
A system and method are provided for special signaling with customer premises equipment. The system includes loop termination equipment coupled to a local loop and comprising a signal generator....
7002904 Method and apparatus for reducing peak power in partial transmit sequence OFDM  
There is provided a PTS (Partial Transmit Sequence) OFDM (Orthogonal Frequency Division Multiplexing) scheme for reduction of a PAPR (Peak-to-Average Power Ratio). In an OFDM transmitting apparatus...
7002994 Multi-channel audio distribution for aircraft passenger entertainment and information systems  
A method of distributing audio channels to passengers of an aircraft includes digitally encoding a multiplicity of audio channels into a corresponding multiplicity of digital audio channels....
6996096 Communication apparatus and a method of controlling a communication apparatus  
Communication apparatus having first communication device conformed to a first communication standard and second communication device conformed to a second communication standard different from the...
6985432 OFDM communication channel  
In an OFDM-based receiver, a time synchronization unit comprising: A. a device for extracting pilot signals contained in the OFDM received signal; B. a device for analyzing pilot signals in the...
6982969 Method and system for frequency spectrum resource allocation  
A system and method for allocating one or more portions of the frequency spectrum among a plurality of radio frequency (RF) transmitters and/or receivers. The system comprises a hub station that...
6980913 Methods of determining channel information based on energy measured at multiple frequencies  
A method, apparatus, and system for spectrum analysis. The method, apparatus, and system for spectrum analysis include measuring energy incident at a frequency in a frequency spectrum corresponding...
6970416 OFDM system with simple terminals  
This invention is a wireless network based on orthogonal frequency division multiplexing (OFDM) and simple terminals. In a conventional OFDM system, the signal processing hardware is divided...
6967997 Multi-carrier connection initialization and symbol transmission  
A method of transmitting symbols in a wireline multi-carrier communication system in which each symbol is modulated for transmission over a carrier group of pre-determined size. The method...
6965616 Network data transmission synchronization system and method  
A number of features for enhancing the performance of a cable transmission system in which data is transmitted between a cable modem termination system at a headend and a plurality of cable modems...
6963544 System for statistically multiplexing real-time and non-real-time voice and data traffic in a wireless system  
A system for providing statistical multiplexing of speech, other real-time data services and non-real-time data services for point to point and point to multipoint communications. The system has...
6957247 Internet system  
An Internet system. The system includes a main server and at least one participant server. The main server stores information to be requested over the Internet by a client so as to form a request...
6956815 Method and apparatus using pseudo-inverses of linear transformations in multi-carrier modulation receivers and transceivers  
Many communications protocols involve a collection of communication channels collectively forming the dimensions of a finite dimensional vector space, of which at any point in time, only a subset...
6954467 Clustered networked devices  
A local communication system comprises a first cluster ( 10 ) of devices interconnected for the communication of messages via a first data bus ( 18 ) and in accordance with a first set of...
6952454 Multiplexing of real time services and non-real time services for OFDM systems  
Transmitter and receiver units for use in an OFDM communications system and configurable to support multiple types of services. The transmitter unit includes one or more encoders, a symbol mapping...
6950387 Communication method, system, and apparatus that combines aspects of cyclic prefix and zero padding techniques  
The present invention provides communication methods, systems, and apparatuses. Methods are provided in which a second signal for transmission is obtained by halving values of an initial portion...
6944139 Digital broadcast system using satellite direct broadcast and terrestrial repeater  
A digital broadcast system is provided which uses a satellite direct radio broadcast system having different downlink modulation options in combination with a terrestrial repeater network employing...
6944587 Ethernet adapting apparatus  
An Ethernet adapting apparatus for data transfer between a standard Ethernet data pump and an Ethernet medium access controller via telecommunication medium ( 4 ), comprising: (a) a dual mode...
6937616 Method and apparatus for providing packet based and distributed xDSL communications  
A method and apparatus for digital subscriber line (xDSL) communications between one or more digital signal processors (DSPs) and analog front ends (AFEs) each coupled to corresponding subscriber...
6937610 Method and protocol for a medium access control layer for local area networks with multiple-priority traffic  
A Medium Access Control (“MAC”) Layer protocol and a method for contention resolution using the protocol is provided for networks with multiple priority traffic. The protocol is used where a...
6937582 Method and an arrangement relating to mobile radio systems with the possibility of switching channel coding schemes  
The present invention relates to a mobile radio system in which channel coding on the radio link is changed during an ongoing connection. The invention can be related in particular to the packet...
6922412 Methods for dynamically assigning link addresses and logical network addresses  
An asymmetrical network for coupling customer-premises Internet hosts such as personal computers to the Internet. The head end of a CATV system has a high-bandwidth connection to the Internet. The...
6917624 Method and apparatus for providing a derived digital telephone voice channel  
A method and device for distributing both high-speed data service, such as digital computer, video and multimedia data, and lower speed data service, such as POTS voice telephone signals,...
6917580 Frequency reuse scheme for OFDM system  
The present invention relates to a cellular communication system for wireless telecommunication on the basis of an OFDM scheme, comprising a plurality of base stations B, whereby at least one base...
6914952 Superframe alignment to a pre-existing ADSL data exchange  
A digital subscriber line network allows a plurality of remote modems to communicate without interfering with the communication to the central office. Each symbol of a superframe is converted to a...
6915530 Ingress detection and characterization by time/frequency map  
The present invention encompasses a method and apparatus for detecting and characterizing one or more ingress events in the return band and creating a time/frequency map based on the detection of...
6904364 Navcell pier to pier GPS  
The present invention is directed to, a navigation system comprising; a plurality of GPS-receivers having GPS antennas mounted thereto for receiving GPS signals, a data processing apparatus for...
6898210 System and method for providing a local area network utilizing remote transceivers  
A system and method for providing a local area network utilizing discrete multitone transceivers includes at least two discrete multitone transceivers each of which may be capable of communicating...
6891858 Dynamic modulation of modulation profiles for communication channels in an access network  
A technique is disclosed for facilitating communications between a network node and a Head End of an access network. The access network includes a plurality of nodes which communicate with the Head...
6870826 Multicarrier transfer system and multicarrier modulation method  
The multicarrier transfer system employing the OFDM/CDMA modulation system comprises a transmitter having an S/P converter which two-dimensionally arranges spread signals for a transmission data...
Matches 101 - 150 out of 417 < 1 2 3 4 5 6 7 8 9 >