序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 监控移动电话中继器的方法和设备 CN97192826.6 1997-02-19 CN1172457C 2004-10-20 安德斯·普拉维茨; 玛茨·豪尔摩根
一种用于监控移动电话中继器的方法和设备。中继器是包括两个天线(1,2)之间的一个上行链路(100)和一个下行链路(200)类型的,其中中继器接收、放大和转发基地台和移动电话之间的信号。自动地完成稳定性测试,因而检测到由涉及两个天线之间的正反馈的不稳定或者由干扰信号引起的可能的连续强信号,因此根据稳定性测试的结果调整放大增益。测试准则包括至少在一个测量周期的较大部分期间检查是否在相应放大器链中的输入信号的电平超过一个限值的步骤。
2 监控移动电话中继器的方法和设备 CN97192826.6 1997-02-19 CN1212797A 1999-03-31 安德斯·普拉维茨; 玛茨·豪尔摩根
一种用于监控移动电话中继器的方法和设备。中继器是包括两个天线(1,2)之间的一个上行链路(100)和一个下行链路(200)类型的,其中中继器接收、放大和转发基地台和移动电话之间的信号。自动地完成稳定性测试,因而检测到由涉及两个天线之间的正反馈的不稳定或者由干扰信号引起的可能的连续强信号,因此根据稳定性测试的结果调整放大增益。测试准则包括至少在一个测量周期的较大部分期间检查是否在相应放大器链中的输入信号的电平超过一个限值的步骤。
3 中继器中稳定边际确定的方法和装置 CN00808556.0 2000-05-18 CN1188954C 2005-02-09 丹尼尔·可勒克
一种确定射频中继器的稳定边际的方法和装置。该方法以两个步骤进行,即建立作为一个频带中的频率的函数的中继器的放大,和观察建立的频率响应中的波形变化的幅度,这个幅度构成稳定边际的度量,使得增加幅度对应于减小稳定边际。
4 中继器中稳定边际确定的方法和装置 CN00808556.0 2000-05-18 CN1354912A 2002-06-19 丹尼尔·可勒克
一种确定射频中继器的稳定边际的方法和装置。该方法以两个步骤进行,即建立作为一个频带中的频率的函数的中继器的放大,和观察建立的频率响应中的波形变化的幅度,这个幅度构成稳定边际的度量,使得增加幅度对应于减小稳定边际。
5 INTERACTIVE SPORTING-EVENT MONITORING SYSTEM EP99973725 1999-02-23 EP1153484A4 2004-03-24 RIGGINS STEPHEN A III
An interactive sporting event monitoring system (15) includes a determiner for determining whether video blanking interval data is present in a selected television channel, and a decoder (29) for decoding video blanking interval data from the selected television channel. The video blanking interval data from the selected television channel comprises a number of channels of sporting event audio information, and the decoder (29) associates each of the plurality of channels of sporting event audio information with a corresponding channel identifier. Each channel identifier distinguishes a corresponding channel of sporting event audio information from other channels of sporting event audio information. The interactive sporting event monitoring system (15) further includes a user input for accepting a user channel identifier from a user, and a monitor (27) for placing the channel of sporting event audio information that the user desires to monitor (27) in a format to facilitate monitoring thereof by a user.
6 A METHOD AND DEVICE FOR MONITORING A MOBILE TELEPHONE REPEATER EP97907503.0 1997-02-19 EP0885491A1 1998-12-23 PRAVITZ, Anders; HOLMGREN, Mats
A method and device for monitoring a mobile telephone repeater are disclosed. The repeater is of the kind comprising an uplink (100) and a downlink (200) between two antennas (1, 2), wherein the repeater receives, amplifies and retransmits signals between a base station and a mobile telephone. A stability test is performed automatically, whereby a possible continuous and strong signal, being caused either by an instability involving a positive feedback between the two antennas or by a disturbing signal, is detected, whereupon the amplifying gain is adjusted in response to the result of the stability test. The test criterion includes the step of checking whether the level of the input signal in the respective amplifier chain exceeds a threshold value during at least a major portion of a measuring period.
7 Method and apparatus for stability margin determination in a repeater US09542951 2000-04-04 US06745007B1 2004-06-01 Daniel Kerek
A method and device for determining the stability margin of a RF repeater. The method is carried out in two steps, viz. establishing the amplification of the repeater as a function of the frequency in a frequency band, and observing the magnitude of wave-like variations in the established frequency response, this magnitude constituting a measure of the stability margin such that an increasing magnitude corresponds to a decreasing stability margin.
8 Transmission-equipment and method for assigning transmission-equipment identification number in transmission system US846226 1997-04-28 US6091738A 2000-07-18 Mitsuo Tsujikado; Shuichi Kubota
The method for assigning an identification number is constructed in that in a transmission system with transmission system managing equipment being connected to at least one of a plurality of pieces of connected transmission equipment, each of all or some of the transmission equipment acquires information peculiar to adjacent devices connected thereto and holds the information as peripheral connected-state data of each piece of transmission equipment. The transmission system managing equipment collects information from all of the transmission equipment which hold the peripheral connected-state data of each piece of transmission equipment, and on the basis of the information, determines and transmits an identification number for each piece of transmission equipment. Each of the plurality of pieces of transmission equipment carries out internal setting of the identification number thereof transmitted from the transmission system managing equipment. By this duplication of the same identification number among different pieces of transmission equipment, setting error or the like in setting the number can be avoided.
9 Radio communication system for use in tunnels US4057 1998-01-07 US06041216A 2000-03-21 Mark D. Rose; Robert W. Haining
A radio communications system is intended for use by trains in a tunnel. This system includes an antenna subsystem which incorporates a radiating coaxial cable disposed along the length of the tunnel and extending beyond the portals thereof, including surface coverage for transition. Plural bi-directional, in-line amplifiers are inserted along the length of the radiating coaxial cable at predetermined intervals for amplifying the RF signals carried by the radiating coaxial cable. A monitoring repeater and a control repeater are provided along with an interface for joining the two repeaters to the radiating coaxial cable. A monitoring subsystem includes an end-of-train device and a head-of-train device. A control subsystem includes the control encoder located in a lead locomotive for encoding control input signals for the lead locomotive, a control transmitter for transmitting the encoded control signal to other locomotives, and a control receiver located in each other locomotive for receiving the encoded control signal.
10 Land mobile radio system having a cell in which mobile radios transmit and receive both data and audio US258748 1994-06-10 US5901341A 1999-05-04 Billy G. Moon; Nickolas A. Avdonin
A land mobile radio communication system has a plurality of cell cites, each of which includes a plurality of repeaters. The mobil radios in the cell transmit and receive both data and audio. The date component of the signal is carred as low-frequency subaudible information. In operation the system determines the number of repeaters that are available. When the system has determined that more than a predetermined number of the repeaters are available, all of the repeaters are set to repeat audio and to transmit and to receive data. However, when the system determines that only the predetermined number of repeaters are available, all of the repeaters, except for the ones of the repeaters in the predetermined number, are set to repeat audio and to transmit and receive data. The ones of the repeaters in the predetermined number are set to only transmit and receive data.
11 Remote loopback apparatus and method for telephone line repeaters US548160 1995-10-25 US5600656A 1997-02-04 Karl A. Kelsey; Romuald Bailey
A loopback enabled by an instruction and address code pair transmitted with the regular data stream affords a simplified fault location scheme for a T1 repeater span. By selecting unique addresses for each repeater using a predetermined frame sequence and by testing for logic error density, erroneous enablement is avoided.
12 Transmission system comprising a terminal station and a relay station US21648451 1951-03-20 US2835792A 1958-05-20 BENNEBROEK EVERTSZ HENDRIK COR
13 Telemetering system for radio links US79292047 1947-12-11 US2524861A 1950-10-10 WALLACE FRED C; MORTIMER ROGOFF
14 Method and apparatus for measuring the amplification ratio of electric amplifiers US35131829 1929-03-30 US1831744A 1931-11-10 TORBERN LAURENT
15 METHOD AND APPARATUS FOR STABILITY MARGIN DETERMINATION IN A REPEATER EP00944474.6 2000-05-18 EP1186112A1 2002-03-13 KEREK, Daniel
A method and device for determining the stability margin of a RF repeater. The method is carried out in two steps, viz. establishing the amplification of the repeater as a function of the frequency in a frequency band, and observing the magnitude of wave-like variations in the established frequency response, this magnitude constituting a measure of the stability margin such that an increasing magnitude corresponds to a decreasing stability margin.
16 Überwachungsvorrichtung für eine Messverstärkerstrecke EP80103585.8 1980-06-25 EP0042878B1 1986-02-19 Ruf, Dieter, Dipl.-Ing.
17 Überwachungsvorrichtung für eine Messverstärkerstrecke EP80103585.8 1980-06-25 EP0042878A1 1982-01-06 Ruf, Dieter, Dipl.-Ing.

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Überprüfung einer Verstärkerstrecke. Um die Funktionsfähigkeit einer Verstärkerstrecke für Spannungsmessungen bei Messwandiern festzustellen, werden die Eingangs- und die Ausgangsgrößen der Verstärkerstrecke in einem Mikrocomputer verglichen und abhängig vom Vergleichsergebnis die Entscheidung gefällt, ob die Verstärkerstrecke intakt ist. Es lassen sich mehrere Versträkerstrecken überwachen, und die Überwachungsschaltung kann eine fehlerhafte Strecke gegen eine redundante Verstärkerstrecke austauschen.

18 METHOD AND APPARATUS FOR STABILITY MARGIN MONITORING IN A REPEATER EP00944474.6 2000-05-18 EP1186112B1 2009-05-13 KEREK, Daniel
A method and device for determining the stability margin of a RF repeater. The method is carried out in two steps, viz. establishing the amplification of the repeater as a function of the frequency in a frequency band, and observing the magnitude of wave-like variations in the established frequency response, this magnitude constituting a measure of the stability margin such that an increasing magnitude corresponds to a decreasing stability margin.
19 A METHOD AND DEVICE FOR MONITORING A MOBILE TELEPHONE REPEATER EP97907503.3 1997-02-19 EP0885491B1 2002-08-28 PRAVITZ, Anders; HOLMGREN, Mats
A method and device for monitoring a mobile telephone repeater are disclosed. The repeater is of the kind comprising an uplink (100) and a downlink (200) between two antennas (1, 2), wherein the repeater receives, amplifies and retransmits signals between a base station and a mobile telephone. A stability test is performed automatically, whereby a possible continuous and strong signal, being caused either by an instability involving a positive feedback between the two antennas or by a disturbing signal, is detected, whereupon the amplifying gain is adjusted in response to the result of the stability test. The test criterion includes the step of checking whether the level of the input signal in the respective amplifier chain exceeds a threshold value during at least a major portion of a measuring period.
20 INTERACTIVE SPORTING-EVENT MONITORING SYSTEM EP99973725.7 1999-02-23 EP1153484A1 2001-11-14 Riggins, Stephen A., III
An interactive sporting event monitoring system (15) includes a determiner for determining whether video blanking interval data is present in a selected television channel, and a decoder (29) for decoding video blanking interval data from the selected television channel. The video blanking interval data from the selected television channel comprises a number of channels of sporting event audio information, and the decoder (29) associates each of the plurality of channels of sporting event audio information with a corresponding channel identifier. Each channel identifier distinguishes a corresponding channel of sporting event audio information from other channels of sporting event audio information. The interactive sporting event monitoring system (15) further includes a user input for accepting a user channel identifier from a user, and a monitor (27) for placing the channel of sporting event audio information that the user desires to monitor (27) in a format to facilitate monitoring thereof by a user.
QQ群二维码
意见反馈