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公开(公告)号：US5425030A
公开(公告)日：1995-06-13
申请号：US790846
申请日：1991-11-12
申请人： Richard A. Comroe , Arun Sobti , Paul M. Bocci , Robert W. Furtaw , Bradley M. Hiben , James A. McDonald , Robert W. Furtaw
发明人： Richard A. Comroe , Arun Sobti , Paul M. Bocci , Robert W. Furtaw , Bradley M. Hiben , James A. McDonald , Robert W. Furtaw
CPC分类号： H04W16/14 , H04W72/0406 , H04W84/08
摘要： A method of allowing use of small, low-power communication systems (20) within the coverage area (11) of larger trunked communication systems. A low-power communication system re-uses the same communication resources used by the larger trunked system whenever sufficient distance exists between large system communication units and the low power system so as to avoid interference. Large system communication units may also be constructed to operate in a dual mode format so as to transmit and receive in a low power mode and on re-used resources, whenever near a low power system or to transmit and receive in a high power mode whenever else necessary.
摘要翻译： 一种允许在较大集群通信系统的覆盖区域（11）内使用小型，低功率通信系统（20）的方法。 只要在大型系统通信单元和低功率系统之间存在足够的距离，低功率通信系统就会重新使用较大集群系统使用的相同通信资源，以避免干扰。 大型系统通信单元也可被构造为以双模式格式运行，以便在低功率模式和重新使用的资源下发射和接收，每当靠近低功率系统时，或者以高功率模式发射和接收， 还有必要。
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2.发明授权
公开(公告)号：US5193101A
公开(公告)日：1993-03-09
申请号：US650125
申请日：1991-02-04
申请人： James A. McDonald , Richard A. Comroe , Arun Sobti , Paul M. Bocci , Robert W. Furtaw , Bradley M. Hiben
发明人： James A. McDonald , Richard A. Comroe , Arun Sobti , Paul M. Bocci , Robert W. Furtaw , Bradley M. Hiben
CPC分类号： H04W84/08 , H04B17/24 , H04B17/309 , H04B17/382
摘要： A way of allowing small, low-power communication units to reuse trunked system communication resources within the service coverage area of the larger trunked system without experiencing significant interference from the trunked system. The low power units (requestors and targets) avoid interference through spread spectrum transmissions.
摘要翻译： 允许小型低功率通信单元在更大的集群系统的服务覆盖区域内重用集群系统通信资源而不会经历来自集群系统的显着干扰的方式。 低功率单元（请求者和目标）通过扩频传输避免干扰。
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公开(公告)号：US5247701A
公开(公告)日：1993-09-21
申请号：US546145
申请日：1990-06-29
申请人： Richard A. Comroe , Arun Sobti , Paul M. Bocci , Robert W. Furtaw , Bradley M. Hiben , James A. McDonald
发明人： Richard A. Comroe , Arun Sobti , Paul M. Bocci , Robert W. Furtaw , Bradley M. Hiben , James A. McDonald
IPC分类号： H04W16/14
CPC分类号： H04W16/14
摘要： Shown, herein, is a method of allowing use of small, low-power communication systems within the service coverage area of larger trunked systems. The small, low-power systems are constructed to reuse at least some of the communication resources, also used by the larger system. The large system measures signal strength values of large cell communication units and transfers such values to the small systems. A small system compares the transferred values with a threshold and when the threshold is exceeded, reuses the communication resources under a TDM format within the small system.
摘要翻译： 这里显示的是允许在较大的集群系统的服务覆盖区域内使用小的，低功率的通信系统的方法。 小型低功率系统被构造为重用至少一些通信资源，也被较大系统使用。 大系统测量大单元通信单元的信号强度值，并将这些值传送给小型系统。 一个小系统将转移的值与阈值进行比较，并且超过阈值时，在小系统内重复使用TDM格式的通信资源。
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公开(公告)号：US5212805A
公开(公告)日：1993-05-18
申请号：US546328
申请日：1990-06-29
申请人： Richard A. Comroe , Arun Sobti , Paul M. Bocci , Robert W. Furtaw , Bradley M. Hiben , James A. McDonald
发明人： Richard A. Comroe , Arun Sobti , Paul M. Bocci , Robert W. Furtaw , Bradley M. Hiben , James A. McDonald
摘要： Shown, herein, is a method of allowing use of small, low-power communication systems within the service coverage area of larger trunked systems. The small, low-power systems are constructed to reuse at least some of the inbound frequencies of communication resources, also used by the larger system. The large system measures signal strength values of large cell communication units and transfers such values to the small systems. A small system also measures the signal strength and compares the measured and transferred values with thresholds and when the thresholds are exceeded, reuses the communication resources under a TDM format within the small system.
摘要翻译： 这里显示的是允许在较大的集群系统的服务覆盖区域内使用小的，低功率的通信系统的方法。 小型低功率系统被构造为重新利用由较大系统使用的至少一些通信资源的入站频率。 大系统测量大单元通信单元的信号强度值，并将这些值传送给小型系统。 小型系统还测量信号强度，并将测量值和传输值与阈值进行比较，超过阈值时，可以在小型系统内以TDM格式重用通信资源。
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5.发明申请公开(公告)号：US20080076387A1
公开(公告)日：2008-03-27
申请号：US11534357
申请日：2006-09-22
IPC分类号： H04M1/66
CPC分类号： G08G1/091 , G08B25/006 , G08G1/20
摘要： A context (112) of a communication received from a user in a vehicle is determined. The context (112) relates to a characteristic associated with the vehicle. An address of the communication is formed based upon the context (112) of the communication received from the user in the vehicle. The communication is transmitted to a recipient using the address.
摘要翻译： 确定从车辆中的用户接收到的通信的上下文（112）。 上下文（112）涉及与车辆相关联的特性。 基于从车辆中的用户接收的通信的上下文（112）形成通信的地址。 使用该地址将通信传送给收件人。
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6.发明授权Method and apparatus for selecting a digital signal from a plurality of digital signals 失效用于从多个数字信号中选择数字信号的方法和装置
公开(公告)号：US4891812A
公开(公告)日：1990-01-02
申请号：US806989
申请日：1985-12-09
CPC分类号： G06F11/183 , H04L1/02 , G06F11/076
摘要： In a mobile communications system, a plurality of base stations may receive the same signal, whereby the "best" reception may be determined. The plurality of received digital signals are combined to form a majority signal. Each of the received digital signals is compared to the majority signal to estimate the bit-error-rate (BER) of each received signal. If the difference between the highest and lowest BER is less than a predetermined threshold, the majority signal is selected for reception. Conversely, if the BER difference is greater than the predetermined threshold, the received digital signal with the lowest BER is selected for reception. Thus, the signal with the lowest BER is selected to provide the best possible communications.
摘要翻译： 在移动通信系统中，多个基站可以接收相同的信号，由此可以确定“最佳”接收。 多个接收到的数字信号被组合以形成多数信号。 将所接收的数字信号中的每一个与多数信号进行比较，以估计每个接收信号的误码率（BER）。 如果最高和最低BER之间的差小于预定阈值，则选择多数信号进行接收。 相反，如果BER差异大于预定阈值，则选择具有最低BER的接收数字信号进行接收。 因此，选择具有最低BER的信号以提供最佳通信。
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公开(公告)号：US4710945A
公开(公告)日：1987-12-01
申请号：US858462
申请日：1986-04-30
IPC分类号： H04B7/08
CPC分类号： H04B7/082
摘要： A signal selection system is disclosed wherein a plurality of received signals are analyzed to determine their statistical characteristics. These characteristics are compared to a predetermined statistical distribution. The signal that is statistically closest to the statistical characteristics of a known signal is selected for further processing and reception.
摘要翻译： 公开了一种信号选择系统，其中分析多个接收信号以确定其统计特性。 将这些特征与预定的统计分布进行比较。 统计上最接近已知信号的统计特性的信号被选择用于进一步的处理和接收。
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公开(公告)号：US4710957A
公开(公告)日：1987-12-01
申请号：US858461
申请日：1986-04-30
CPC分类号： H04B14/066
摘要： A data detector is disclosed wherein a received signal is analyzed to determine its statistical characteristics. These characteristics are compared to a predetermined statistical distribution. If the signal is statistically close to the statistical characteristics of a known signal a detect signal is generated and the received signal is passed for further processing and reception.
摘要翻译： 公开了一种数据检测器，其中分析接收的信号以确定其统计特性。 将这些特征与预定的统计分布进行比较。 如果信号在统计上接近于已知信号的统计特性，则产生检测信号，并且接收到的信号被传递用于进一步的处理和接收。
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公开(公告)号：US07741977B2
公开(公告)日：2010-06-22
申请号：US11957733
申请日：2007-12-17
CPC分类号： G08G1/0104
摘要： A method and apparatus for calculating the travel time of a vehicle as it transits through multiple locations. The method and apparatus includes a device for detecting a radio signal from a vehicle, attaching information to the radio signal, and transmitting a message packet with the signal and attached information to a central server. The central server stores the message packet. The central server compares the information in the message packet against other stored message packets received from multiple locations. When matching information is found, an algorithm is run to compute a vehicle travel time between two locations.
摘要翻译： 一种用于计算车辆经过多个位置的行驶时间的方法和装置。 该方法和装置包括用于检测来自车辆的无线电信号的装置，将信息附加到无线电信号，以及将具有信号和附加信息的消息分组发送到中央服务器。 中央服务器存储消息包。 中央服务器将消息分组中的信息与从多个位置接收的其他存储的消息分组进行比较。 当找到匹配信息时，运行算法来计算两个位置之间的车辆行驶时间。
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公开(公告)号：US20090153364A1
公开(公告)日：2009-06-18
申请号：US11957733
申请日：2007-12-17
IPC分类号： G08G1/123
CPC分类号： G08G1/0104
摘要： A method and apparatus for calculating the travel time of a vehicle as it transits through multiple locations. The method and apparatus includes a device for detecting a radio signal from a vehicle, attaching information to the radio signal, and transmitting a message packet with the signal and attached information to a central server. The central server stores the message packet. The central server compares the information in the message packet against other stored message packets received from multiple locations. When matching information is found, an algorithm is run to compute a vehicle travel time between two locations.
摘要翻译： 一种用于计算车辆经过多个位置的行驶时间的方法和装置。 该方法和装置包括用于检测来自车辆的无线电信号的装置，将信息附加到无线电信号，以及将具有信号和附加信息的消息分组发送到中央服务器。 中央服务器存储消息包。 中央服务器将消息分组中的信息与从多个位置接收的其他存储的消息分组进行比较。 当找到匹配信息时，运行算法来计算两个位置之间的车辆行驶时间。
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