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41. 发明专利

CA2571115A1 AUTO BLOCK AND AUTO DISCOVERY IN A DISTRIBUTED COMUNICATION SYSTEM 未知
公开(公告)号：CA2571115A1
公开(公告)日：2006-01-12
申请号：CA2571115
申请日：2005-06-30
申请人： GLENAYRE ELECTRONICS INC
发明人： BETTIS SONNY R , MORAES IAN M , LOWMAN PHILIP L , PLOTKY JON S , SPENCER JAMES H
IPC分类号： H04M1/64 , H04L12/26 , H04M1/24

42. 发明专利

CA2571113A1 SYSTEM AND METHOD FOR OUTBOUND CALLING FROM A DISTRIBUTED TELECOMMUNICATIONS PLATFORM 未知
公开(公告)号：CA2571113A1
公开(公告)日：2006-01-12
申请号：CA2571113
申请日：2005-06-30
申请人： GLENAYRE ELECTRONICS INC
发明人： SPENCER JAMES H , PLOTKY JON S , BETTIS SONNY R , MORAES IAN M , LOWMAN PHILIP L
IPC分类号： H04M1/64 , G06F15/16

43. 发明专利

CA2289133C FREQUENCY SELECTIVE PREDISTORTION IN A LINEAR TRANSMITTER 未知
公开(公告)号：CA2289133C
公开(公告)日：2003-11-11
申请号：CA2289133
申请日：1998-05-05
申请人： GLENAYRE ELECTRONICS INC
发明人： LYENDECKER ROBERT R
IPC分类号： H03F1/32 , H03F1/26
摘要： A system for linearly transmitting an amplified output signal using predistortion is disclosed. The system uses a straight inverse modeling sche me to more easily and accurately determine the inverse of the distortion caused by a power amplifier (1002) of a RF transmitter. The direct inverse modeling scheme of the present invention indexes the LUT (1020) using the modulated input signals instead of the potentially noisier output signals, which helps to increase the accuracy of the predistortion. The predistorter system (1010 ) stores complex coefficients in the LUT (1020), which are then used as the ta p weights of a digital filter implementing the predistorter (1022). Finally, t he trainer (1008) uses a modified version of the power amplifier (1002) output signal. The modified power amplifier (1002) output signal has the in-band distortion removed from the power amplifier (1002) output signal.

44. 发明专利

DE69329893D1 未知
公开(公告)号：DE69329893D1
公开(公告)日：2001-03-01
申请号：DE69329893
申请日：1993-11-24
申请人： GLENAYRE ELECTRONICS INC
发明人： MARCHETTO ROBERT FRANK , STEWART TODD ALAN , HO PAUL KAR-MING
IPC分类号： H04B7/005
摘要： A method and apparatus for compensating fading and interference in a radio signal. A plurality of pilot symbols are appended to a plurality of data symbols to form successive frames that are modulated at a transmitter. The transmitted modulated signal is subject to loss of data due to simple fading and multi-path and simulcast interference. The received signals are demodulated by a receiver and processed to provide a data signal comprising the data symbols and a pilot signal comprising the pilot symbols. The data signal is delayed for sufficient time to enable channel impulse response estimates to be made of successive blocks of pilot symbols, preferably using pilot symbol blocks that both precede and follow the data symbols in the frame being processed. The channel impulse response estimates for blocks of pilot symbols are buffered and used by an interpolator to determine an interpolated channel impulse response estimate for each data symbol as a function of both the pilot symbols and of predefined channel characteristics. The interpolated channel impulse response estimates are applied to successive data symbols in the delayed data signal, enabling the data to be decoded, compensating for fading and interference. Interpolation using predefined channel characteristics based on worst case conditions substantially improves the bit error rate (BER) for the data recovered, compared to the prior art.

45. 发明专利

AU5917300A Method for implementing interface redundancy in a computer network 未知
公开(公告)号：AU5917300A
公开(公告)日：2001-02-13
申请号：AU5917300
申请日：2000-07-06
申请人： GLENAYRE ELECTRONICS INC
发明人： TOSEY JOSEPH P R , LOUBSER ANDRIES , VILJOEN ANDRE
IPC分类号： H04L12/56 , H04L69/40 , H04J1/16
摘要： A method and system for recovering transparently from a network interface failure. The method is to be run in a computing device on a network with multiple peer computing devices, having redundant network interfaces connected with redundant cables. The method transparently recovers from network failures by first establishing an address list of the peer computing devices on the subnet. The computing device then periodically tests the communication link with one or more of the peer computing devices until at least one peer device responds thereby sending its network address. The computing device then uses the peer network address to retest the communication link with the peer device until the peer device does not respond. If there is no response, the computing device reassigns the network address of the computing device from the primary network interface to the redundant network interface. This substantially reduces or eliminates disruptions in network connections established by computer applications or other higher layer connections.

46. 发明专利

AU4871599A Physical channel estimator 未知
公开(公告)号：AU4871599A
公开(公告)日：2001-02-05
申请号：AU4871599
申请日：1999-07-15
申请人： GLENAYRE ELECTRONICS INC
发明人： GOTHE MARLO R , FERRARIO NINO P , REY CLAUDIO G , KATIC OGNJEN
IPC分类号： H04L25/02 , H04L25/06 , H04B10/18 , H04L27/01

47. 发明专利

AU4201899A Forward-backward channel interpolator 未知
公开(公告)号：AU4201899A
公开(公告)日：1999-12-13
申请号：AU4201899
申请日：1999-05-25
申请人： GLENAYRE ELECTRONICS INC
发明人： REY CLAUDIO G , KATIC OGNJEN B
IPC分类号： H03H17/02 , H03H17/04 , H04L25/02 , H04L25/03 , A61B19/00 , H03H7/30 , H03M13/00

48. 发明专利

AU4097499A Header synchronization detector 未知
公开(公告)号：AU4097499A
公开(公告)日：1999-12-13
申请号：AU4097499
申请日：1999-05-25
申请人： GLENAYRE ELECTRONICS INC
发明人： GOTHE MARLO R , REY CLAUDIO G
IPC分类号： H04L7/04 , H04L7/06 , H04L7/00 , H04J3/06
摘要： A pattern detector adapted for wireless communication systems includes an error calculator, a comb filter, an averager, and a threshold detector. The pattern to be detected is a sequence of pilot signal patterns whose error calculation is relatively invariant with respect to frequency offset introduced by Doppler and the local oscillator. The pattern detector processes received input samples +E,ovs y+EE k to determine an error signal from the input samples +E,ovs y+EE k and estimated input samples +E,cir y+EE k. The estimated input samples +E,cir y+EE k are determined using an estimated channel impulse response. When a vector of the received input samples is "aligned" with the expected header sync input samples, the level of the error signal is about equal to the level of the noise. The pattern detector determines the average level of the error signals for the last K error signals of each sample position EKn within a pilot pattern, where K corresponds to the number of pilot patterns in a header sync pattern and n corresponds to the sample position. The pattern detector also determines the average level of the error signals EL corresponding to the last L received input samples, where L corresponds to the number of samples in a header sync sequence. When EKn for a sample position is lower than a preselected threshold percentage of EL, the header sync pattern is deemed detected. Finally, the end of the header sync pattern is determined by the location of the minimum EKn. This minimum is found by calculating, once the header is deemed detected, values for EKn that are a certain number of samples past the last minimum.

49. 发明专利

CA2334133A1 METHOD FOR TWO-STAGE DATA TRANSMISSION 未知
公开(公告)号：CA2334133A1
公开(公告)日：1999-12-09
申请号：CA2334133
申请日：1999-06-02
申请人： GLENAYRE ELECTRONICS INC
发明人： TKATCH RANDY T , GAYTON DONALD W , GODOROJA ANDREI
IPC分类号： H04L12/58 , H04W4/12 , H04W84/02 , H04M11/00 , H04Q7/00 , H04Q1/30
摘要： A method is disclosed for sequential transmission of at least two sub-packag es for the data package from an electronic communication transmitter to an electronic communication receiver. A first sub-package of the data package i s transmitted from the transmitter (figure 2, 204) and includes identifying information pertaining to a second sub-package of the data package (figure 2 , 210), with the first sub-package having less data content than that of the second sub-package. The receiver provides the user thereof with the choice o f whether to have the second sub-package transmitted by the transmitter. Transmission instructions are transmitted from the receiver to the transmitt er in response to an affirmative selection by the user of the receiver to the choice of whether to have the second sub-package transmitted (figure 2, 214) . The second sub-package is transmitted from the transmitter upon receipt by t he transmission instruction from the receiver.

50. 发明专利

SE9900033L 未知
公开(公告)号：SE9900033L
公开(公告)日：1999-03-03
申请号：SE9900033
申请日：1999-01-08
申请人： GLENAYRE ELECTRONICS INC
发明人： GODOROJA ANDREI , FAWCETT GLENN S , TOSEY JOSEPH P R
IPC分类号： G06F1/00 , G06F21/00 , H04L12/18 , H04L12/24 , H04L12/56 , H04L29/06 , H04L29/08 , H04W4/06 , H04W8/04 , H04W8/08 , H04W12/06 , H04W24/04 , H04W28/10 , H04W28/12 , H04W28/14 , H04W60/00 , H04W80/06 , H04W84/02 , H04W92/16 , H04W92/24
摘要： An improved computer network and methods for determining current configurations of abstract nodes is accomplished by using era values in the configurations of the abstract nodes. Abstract nodes which represent network components within the network have access to databases containing recorded node configurations. Associations between nodes are established when a node configuration is advertised and recorded in another node's database. Database information on node configurations is kept current by comparing the era value of each advertised node against the era value of the same node as recorded in the database. Since era values indicate a relative time reference for which the node configuration is operative, a more current era value indicates a more current node configuration. Abstract nodes are completely independent entities. As a result, a node's configuration may be independently modified by more than one component in the network. Application of the network in a hot-standby system is also disclosed.

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