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1. 发明授权

US4167700A Digital voice protection system and method 失效
标题翻译：数字语音保护系统及方法
公开(公告)号：US4167700A
公开(公告)日：1979-09-11
申请号：US792969
申请日：1977-05-02
申请人： Richard H. Coe , Daniel J. McQuade , David L. Weiss
发明人： Richard H. Coe , Daniel J. McQuade , David L. Weiss
IPC分类号： H04B7/02 , H04B7/14 , H04K1/00
CPC分类号： H04K1/00
摘要： A digital voice privacy electronic communication system and method provides protection for an information signal. Either a clear voice signal or a scrambled digitized version of the voice signal is selected for transmission. At the receive end of the system a determination that a clear voice signal or a scrambled signal has been sent is made. This information is used to automatically switch the clear audio signal if present to an output circuit or to switch to the output circuit either a regenerated version of the scrambled signal or an unscrambled version of the information signal. The switching is done automatically so that a user does not have to manually select the proper receiver mode in response to reception of a signal, that is, whether the received signal was a clear voice signal or a scrambled signal. At the transmitter the information signal to be scrambled is analog-to-digital converted and the digital signal is then put into a scrambled form. The scrambled signal may be then processed through base stations, repeaters, satellite receivers, etc., while still in the digitally scrambled form, thereby providing a high degree of protection for such a signal. A receiver may regenerate, or reshape, the scrambled digital signals or the signal may be unscrambled in the receiver depending upon whether the receiver is part of, for example, a repeater system or is a terminal destination for the signal. The digital privacy system of this invention may also be utilized in signal voting systems, either analog or digital, while still maintaining, if necessary, the secure format of the scrambled information.
摘要翻译：数字语音隐私电子通信系统和方法为信息信号提供保护。选择语音信号的清晰语音信号或加扰数字化版本进行传输。在系统的接收端，确定发送了清晰的语音信号或加扰的信号。该信息用于将清除音频信号（如果存在）自动切换到输出电路，或者切换到加扰信号的再生版本或信息信号的未加扰版本的输出电路。切换自动完成，使得用户不必手动选择响应于接收信号的适当的接收机模式，即接收的信号是否是清晰的语音信号或加扰的信号。在发射机处，要加密的信息信号被模数转换，数字信号随后被加扰。然后可以通过基站，中继器，卫星接收机等处理加扰信号，同时仍然是数字加扰形式，从而为这种信号提供高度的保护。接收机可以重新生成或重新形成加扰的数字信号，或者信号可以在接收机中被解扰，这取决于接收机是否是例如中继器系统的一部分，或者是信号的终端目的地。本发明的数字隐私系统也可以在模拟或数字信号投票系统中使用，同时如果需要仍然保持加密信息的安全格式。

2. 发明授权

US5392458A Trunked communication system with variable communication capability support for roamers 失效
标题翻译：具有可变通信能力的集群通信系统支持漫游者
公开(公告)号：US5392458A
公开(公告)日：1995-02-21
申请号：US52845
申请日：1993-04-28
申请人： Michael D. Sasuta , Richard H. Coe , Sewim F. Ablay
发明人： Michael D. Sasuta , Richard H. Coe , Sewim F. Ablay
IPC分类号： H04W4/00 , H04B7/26
CPC分类号： H04W8/18 , H04W4/00 , H04W8/12 , H04W84/08
摘要： In a trunked communication system that supports roaming communication units, communication capabilities in support of the communication activities of the communication unit may be varied from system to system in a controlled manner. This control may be initiated at the instance of the communication unit itself, on a system by system basis (wherein each system maintains a data base and/or retains the capability of contacting a home system for the communication unit), or by a hub that interconnects with each of the trunking systems and which either maintains a data base of preauthorization information or that contacts home systems in order to obtain authorization information.
摘要翻译：在支持漫游通信单元的集群通信系统中，支持通信单元的通信活动的通信能力可以以受控的方式从系统变化到系统。该控制可以在通信单元本身的实例的基础上，系统地基于系统（其中每个系统维护数据库和/或保持与通信单元的归属系统联系的能力）或由集线器与每个中继系统互连，并且维护预授权信息的数据库或者与家庭系统联系以获得授权信息。

3. 发明授权

US4553262A Communications system enabling radio link access for non-trunked radio units to a multifrequency trunked two-way communications systems 失效
标题翻译：通信系统使得非集群无线电单元的无线电链路接入能够进入多频中继双向通信系统
公开(公告)号：US4553262A
公开(公告)日：1985-11-12
申请号：US555102
申请日：1983-11-25
申请人： Richard H. Coe
发明人： Richard H. Coe
IPC分类号： H04W84/08 , H04B7/155 , H04B7/26 , H04Q7/02
CPC分类号： H04W84/08
摘要： An improved multifrequency trunked, two-way communications system is provided in which a plurality of conventional single channel radio units are provided access. The system includes a predetermined number of information channels that are shared by a plurality of trunked stations. A trunked controller assigns one of the information channels to a requesting trunked mobile unit. The requesting trunked mobile unit is enabled to operate on the assigned channel in response thereto.The improved communications system includes a radio access link which enables the single channel radio units to operate on an assigned information channel in the same manner as the trunked remote stations. The radio access link provides the plurality of conventional remote stations automatic access to the trunked system without requiring any modification of the conventional remote stations, and likewise without modification of the trunked remote stations and trunked controller.
摘要翻译：提供了一种改进的多频中继双向通信系统，其中提供多个传统的单信道无线电单元接入。系统包括由多个集群站共享的预定数量的信息信道。集群控制器将一个信息信道分配给请求的中继移动单元。响应于此请求的中继移动单元能够在所分配的信道上操作。改进的通信系统包括无线电接入链路，其使得单个信道无线电单元能够以与集群的远程站相同的方式在分配的信息信道上操作。无线电接入链路提供多个常规远程站自动访问集群系统，而不需要对常规远程站进行任何修改，同样也不对集群远程站和中继控制器进行修改。

4. 发明授权

US3987361A Nuclear magnetic resonance temperature equilibration and method for oil in wax determination 失效
标题翻译：核磁共振温度平衡和蜡测定中的油的方法
公开(公告)号：US3987361A
公开(公告)日：1976-10-19
申请号：US620668
申请日：1975-10-08
申请人： James M. Martin, Jr. , Roy C. Heaton , Richard H. Coe
发明人： James M. Martin, Jr. , Roy C. Heaton , Richard H. Coe
IPC分类号： G01N33/26 , G01R33/30 , G01R33/31 , G01R33/08
CPC分类号： G01N33/26 , G01R33/30 , G01R33/31
摘要： An apparatus for rapidly conditioning wax samples and a method for determining the oil content of said samples with a nuclear magnetic resonance analyzer are described. A molten wax sample is collected in a sample holder. The holder is then placed in a temperature equilibration chamber where the molten wax is rapidly cooled at a temperature of about 25-33.degree.F with a cold gas stream from a vortex tube. The sample is then heated to a pre-selected equilibration temperature for a preset time at which point the sample is removed from the equilibration chamber. The sample is placed in the analyzer where the nuclear magnetic resonance value of the sample is determined. The sample is removed from the analyzer and weighed. Finally the oil content of the wax sample is obtained from a previously developed correlation between the oil content and the nuclear magnetic resonance value of various wax samples.
摘要翻译：描述了用于快速调节蜡样品的装置和用核磁共振分析仪测定所述样品的油含量的方法。将熔融的蜡样品收集在样品架中。然后将保持器放置在温度平衡室中，其中熔融蜡在约25-33°F的温度下用来自涡流管的冷气流快速冷却。然后将样品加热至预先选择的平衡温度预定时间，此时将样品从平衡室中移出。将样品置于分析仪中，其中确定样品的核磁共振值。将样品从分析仪中取出并称重。最后，蜡样品的油含量是从以前发现的各种蜡样品的油含量和核磁共振值之间的相关性获得的。

5. 发明授权

US3971434A Apparatus and method for oil-in-wax determination 失效
标题翻译：油蜡测定的装置和方法
公开(公告)号：US3971434A
公开(公告)日：1976-07-27
申请号：US421197
申请日：1973-12-03
申请人： James M. Martin, Jr. , Roy C. Heaton , Richard H. Coe
发明人： James M. Martin, Jr. , Roy C. Heaton , Richard H. Coe
IPC分类号： G01N24/08 , G01R33/30 , G01R33/31 , F28D21/00
CPC分类号： G01N24/08 , G01R33/30 , G01R33/31
摘要： An apparatus for rapidly conditioning wax samples and a method for determining the oil content of said samples with a nuclear magnetic resonance analyzer are described. A molten wax sample is collected in a sample holder. The holder is then placed in a temperature equilibration chamber where the molten wax is rapidly cooled at a temperature of about 25.degree.-33.degree.F with a cold gas stream from a vortex tube. The sample is then heated to a pre-selected equilibration temperature for a preset time at which point the sample is removed from the equilibration chamber. The sample is placed in the analyzer where the nuclear magnetic resonance value of the sample is determined. The sample is removed from the analyzer and weighed. Finally the oil content of the wax sample is obtained from a previously developed correlation between the oil content and the nuclear magnetic resonance value of various wax samples.
摘要翻译：描述了用于快速调节蜡样品的装置和用核磁共振分析仪测定所述样品的油含量的方法。将熔融的蜡样品收集在样品架中。然后将保持器放置在温度平衡室中，其中熔融蜡在约25-33°F的温度下用来自涡流管的冷气流快速冷却。然后将样品加热至预先选择的平衡温度预定时间，此时将样品从平衡室中移出。将样品置于分析仪中，其中确定样品的核磁共振值。将样品从分析仪中取出并称重。最后，蜡样品的油含量是从以前发现的各种蜡样品的油含量和核磁共振值之间的相关性获得的。

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