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| Number | Title | Issue Date |
| 6865172 | Receiving method and receiver The invention relates to a receiving method and a receiver to be used in a cellular radio system. The received signal is FFT transformed and the spreading code of the receiver is FFT transformed in transform means (30). A transformed signal (36) and sp... | 03/08/2005 |
| 6654371 | Method and apparatus for forwarding multicast data by relaying IGMP group membership A method, apparatus and article of manufacture for forwarding multicast data by relaying IGMP group membership. A router is used to build a database of a plurality of interfaces and corresponding multicast groups, and the database is stored on the router.... | 11/25/2003 |
| 6556555 | Method for calculating the PN generator mask to obtain a desired shift of the PN code A method and program for determining the PN generator mask which is required to obtain a specific shift of the PN sequence at the output of a phase shift network (PSN), relative to the reference sequence that is represented by the inverse of the character... | 04/29/2003 |
| 6522639 | Transmission/reception apparatus and transmit power control method Spreading sections of the base station spread the respective distributed data using mutually orthogonal spreading codes and are transmitted from antennas. Despreading sections of the mobile station despread the received signals using the same spreading co... | 02/18/2003 |
| 6487217 | Apparatus for transmitting delay sensitive information over IP over frame relay A method of transmitting delay sensitive information over Internet Protocol (IP) over Frame Relay including storing the information in an IP packet, storing the IP packet in a sub-frame, storing a special symbol representing that the frame is delay sensit... | 11/26/2002 |
| 6483827 | Dect-based radio station The radio station has DECT circuitry for processing one or more bit streams to be transmitted over a communication channel divided into successive 10 ms radio frames each having a plurality of timeslots, each bit stream being allocated one of the timeslot... | 11/19/2002 |
| 6469981 | Point-to-multipoint network The invention has for its object to provide a network in which an optimized mode of operation is made possible both in the trouble-free case and on the occurrence of a disturbance. This object is attained by a point-to-multipoint network (NET) which is ch... | 10/22/2002 |
| 6470028 | System and method for translating telecommunications signals of span interfaces A system for switching communications signals between a first communications network and a second communications network is provided. The system includes a J1 interface coupled to the first communications network by a J1 span, a E1 interface coupled to th... | 10/22/2002 |
| 6466549 | Broadcast discovery in a network having one or more 1394 buses A method and apparatus for providing broadcast discovery in a network having one or more 1394 buses is disclosed. Devices connected to a bus generate advertised discovery information upon either a reset of the bus or a receipt of a solicit packet sent to ... | 10/15/2002 |
| 6463060 | Signal processing circuit A signal processing circuit which enables an error bit to be set simply without causing an increase in the size of the circuit even if the packet size is changed and which enables realization of stable operation without the system stopping even if the val... | 10/08/2002 |
| 6459694 | Method of increasing the capacity of a CDMA network, and associated units The invention provides a method of increasing by M, where M is any integer, the number N, where N is any integer greater than or equal to 2, of calls set up between a central unit and remote units of a code division multiple access network, N first group ... | 10/01/2002 |
| 6459690 | Channel selector device for multiple access direct transmission systems between mobile stations A channel selector device for a multiple access system of direct transmission between mobile stations carries out measurements on various channels during calls in order to determine if there is a better channel than the traffic channel used for the call. ... | 10/01/2002 |
| 6456609 | Code division multiple access mobile communication system A code division multiple access (CDMA) mobile communication system with improvements to permit stable reception with a minimum of bit error. The system comprises a voltage-controlled oscillator for supplying a carrier to a radio frequency quadrature demod... | 09/24/2002 |
| 6456608 | Adaptive vector correlator using weighting signals for spread-spectrum communications A pilot adaptive vector correlator for estimating channel-impulse response and for obtaining a reference value of received multipath signals in a spread-spectrum system. A code generator generates a plurality of replicas of a pilot-spreading-code signal, ... | 09/24/2002 |
| 6449245 | Signal receiving apparatus and method and providing medium An intermediate frequency signal of an OFDM signal received by a tuner (2) is multiplied by a carrier wave by a multiplier (3) and a multiplier (4) to thereby generate an OFDM signal in a base band. The OFDM signal in the base band is FFT processed by an ... | 09/10/2002 |
| 6445707 | Broadcast rate control allocation (BRCA) for congestion avoidance in satellite ATM networks A congestion avoidance scheme for ABR services in an ATM satellite system is described. The scheme relies on the broadcast nature of a satellite system to control the rates at which user terminals can send their requests for capacity. The scheme is integr... | 09/03/2002 |
| 6445702 | Common downlink frame for differing coding rates A method is provided for organizing a plurality of cells into a fixed size frame for transmission in the downlink of a processing satellite (12) to at least one of a plurality of earth terminals (14), comprising the steps of: (a) determining an inner codi... | 09/03/2002 |
| 6442161 | Data packet transmission A network in which a data packet is altered, for instance by the insertion or removal of a data portion such as a VLAN tag. The data of the data packet is read out of memory to an output means which forms the altered data packet with a new FCS portion and... | 08/27/2002 |
| 6442147 | Connectionless communications network A non-geostationary satellite network incorporates a plurality of satellite nodes and ground stations in communication with the nodes. Routing and control are established from a virtual model of the network. Within the virtual model, a capacity of space s... | 08/27/2002 |
| 6442133 | Switchboard having a dual switching system A switchboard system includes an input/output section, first and second switches each for acting an active side switch or a standby side switch, a signal processing section for processing received cells, and a control section. The control section switches... | 08/27/2002 |
| 6442170 | Adaptive addressing filtering A repeater, which forwards data packets from a first Ethernet collision domain to a second Ethernet collision domain while filtering packets so as to eliminate unnecessary packets from being transmitted onto Ethernet networks, has a register for each port... | 08/27/2002 |
| 6442176 | Signal transmission system in a mobile communication network The present invention provides a signal transmission system capable of assuring continuity and quality of signals in the mobile communication network even though data packet is lost in the transmission line. In a signal transmission side, a convolutional ... | 08/27/2002 |
| 6438124 | Voice internet transmission system A voice Internet transmission system which enables a person to have a conversation via the Internet without having to use a computer at either end of the conversation, and without incurring long distance telephone charges regardless of the distance betwee... | 08/20/2002 |
| 6438131 | Low-overhead service specific convergence layer for voice and telephony over packet-based systems Information is communicated in an Asynchronous Transfer Mode (ATM) or other packet-based communication system using a service specific convergence layer which associates a holdover indicator with each of a number of packets generated in a voice and teleph... | 08/20/2002 |
| 6434111 | Soft decision rule for demodulation of bi-orthogonal signals The invention relates to a process for the demodulation of signals representative of sequences (SE1 to SEN) transmitted in a communications system, which includes determining a correlation value (a1 to an), dedu... | 08/13/2002 |
| 6430196 | Transmitting delay sensitive information over IP over frame relay A method of transmitting delay sensitive information over Internet Protocol (IP) over Frame Relay including storing the information in an IP packet, storing the IP packet in a sub-frame, storing a special symbol representing that the frame is delay sensit... | 08/06/2002 |
| 6430167 | Method for transferring data over a satellite network by using unique beam identifiers to route the data A method for transferring a data packet between a first source terminal and a first destination terminal, in a communications network having a plurality of source terminals, destination terminals, satellites and downlink antenna beams one downlink antenna... | 08/06/2002 |
| 6430182 | Fabric system and method for assigning identifier for fabric apparatus therefor A fabric system connects a plurality of fabric groups into a plurality of stages between terminal nodes and performs exchange of variable length frame. The fabric has an assignment signal transmitting portion transmitting an assignment signal fixedly assi... | 08/06/2002 |
| 6430172 | Radio communication system, transmitting apparatus, radio communication control apparatus, receiving apparatus, and radio communication method A radio communication system where data is transferred by TDMA in one frame. A frame is formed of a control-data transfer time region and an information-data transfer time region. In the control-data transfer time region, polling is performed for each ter... | 08/06/2002 |
| 6424632 | Method and apparatus for testing packet data integrity using data check field A single check field can be generated and appended to packets prior to a switching or other operation to support post-operation verification that protected fields were not altered during the operation and that the post-operation packet sequence matches th... | 07/23/2002 |
| 6424654 | Network system and DHCP server selection method In a network system including a plurality of clients and two or more DHCP servers, each of the clients acquires respective IP addresses from the DHCP servers, finds respective differences between each of the acquired IP addresses and the reference address... | 07/23/2002 |
| 6421331 | Power control and rate information method for a mobile radio communication system The method of operating an uplink of a CDMA mobile telecommunications system provides optimization of power control accuracy, or rate change responsiveness for at least one communications a channel. Rate information is provided which indicates (a) the rat... | 07/16/2002 |
| 6421316 | Point-to-multipoint connection restoration In Network LIJ point-to-multipoint connection, when an endpoint node receives a connection release message caused by a fault of the network from the root terminal side after a leaf initiated connection to a leaf terminal has been established, the leaf ini... | 07/16/2002 |
| 6418115 | Exchange for changing a route of a transmission path to bypass a malfunctioning switch An exchange changes a route of a transmission path to bypass a malfunctioning switch. The transmission path is formed in a switch network including a plurality of switches for transmitting communication information. The switch network is provided with a p... | 07/09/2002 |
| 6418129 | Wireless subscription management with dynamic allocation of unique network addresses A wireless communication device is associated with a fixed site device or substantially non-mobile device such as a set-top box, a burglar alarm or intelligent vending machine. The wireless communication device is preprogrammed with a generic network addr... | 07/09/2002 |
| 6418125 | Unified mixing, speaker selection, and jitter buffer management for multi-speaker packet audio systems A receiver manages multiple speakers in a packet network telephone call. A packet gateway receives audio packets from the multiple speakers over the packet network. Memory in each receiver stores the audio packets and information about the multiple speake... | 07/09/2002 |
| 6411607 | Satellite receiver/router, system, and method of use This specification discloses a satellite transmission system for transmission of TCP/IP compatible packets from a head end computer through a satellite uplink, an extraterrestrial satellite, a satellite downlink, and an integrated satellite receiver/route... | 06/25/2002 |
| 6411623 | System and method of automated testing of a compressed digital broadcast video network A switched, digital high-broadband network provides automated control and in-service and out-of-testing of analog video signals, encoded and decoded real time, into MPEG 2 digitized format with a high level of security and protection of content and withou... | 06/25/2002 |
| 6404749 | Method for providing connectionless data services over a connection-oriented satellite network A method for transferring a data packet, in a connectionless manner between a first source terminal and a first destination terminal, in a communications network which supports connection-oriented communications. The data packet is segmented into one or m... | 06/11/2002 |
| 6400724 | Method and apparatus for efficient data transmission in a voice-over-data communication system A method and apparatus for increasing the probability of successful data frame transmission from a transmitter to a receiver. When a data frame is generated by a processor, it is stored in a transmit queue and a copy of the data frame is stored in a secon... | 06/04/2002 |
