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1.发明授权Method and apparatus for alerting a communication unit of a service request in a communication system 有权在通信系统中提醒服务请求的通信单元的方法和装置
公开(公告)号：US6151501A
公开(公告)日：2000-11-21
申请号：US209098
申请日：1998-12-10
CPC分类号： H04W36/0066 , H04W84/042 , H04W84/08 , H04W88/06
摘要： A communication unit (118) provides service information related to a second communication service to a base site (114) that provides a first communication service to the communication unit (118). The base site (114) receives the service information, stores the service information, and receives a service request for the communication unit (118) to participate in the second communication service. Finally, the base site (114) transmits a control message to the communication unit (118), via a control communication resource, to alert the communication unit (118) as to requested participation in the second communication service.
摘要翻译： 通信单元（118）向与通信单元（118）提供第一通信服务的基站（114）提供与第二通信服务相关的服务信息。 基站（114）接收服务信息，存储服务信息，并且接收对通信单元（118）的服务请求以参与第二通信服务。 最后，基站（114）经由控制通信资源向通信单元（118）发送控制消息，以通知单元（118）请求参与第二通信业务。
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2.发明授权Method and apparatus for alerting a communication unit in a communication system 有权用于在通信系统中警报通信单元的方法和装置
公开(公告)号：US6148064A
公开(公告)日：2000-11-14
申请号：US208783
申请日：1998-12-10
申请人： Laura A. Christensen , Kamala D. Urs , Anatoly S. Belkin , Robert L. Epsom , Jay R. Krebs , Sikendar Fidai
发明人： Laura A. Christensen , Kamala D. Urs , Anatoly S. Belkin , Robert L. Epsom , Jay R. Krebs , Sikendar Fidai
摘要： A calling communication unit (210) transmits a dispatch communication request to a communication infrastructure (202). The dispatch communication request includes at least a dispatch identification of a called communication unit (e.g.,216). In response to the dispatch communication request, the communication infrastructure generates an alert message that includes a dispatch identification of the calling communication unit and determines a telephone number associated with the called communication unit. The communication infrastructure then transmits the generated alert message to the called communication unit based on the telephone number associated with the called communication unit.
摘要翻译： 呼叫通信单元（210）向通信基础设施（202）发送调度通信请求。 调度通信请求至少包括被叫通信单元（例如，216）的调度标识。 响应于调度通信请求，通信基础设施生成包括主叫通信单元的调度标识并确定与被叫通信单元相关联的电话号码的警报消息。 然后，通信基础设施基于与被叫通信单元相关联的电话号码将所生成的警报消息发送到被叫通信单元。
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3.发明授权Method and apparatus for forwarding a dispatch communication in a communication system 失效用于在通信系统中转发调度通信的方法和装置
公开(公告)号：US6081707A
公开(公告)日：2000-06-27
申请号：US208680
申请日：1998-12-10
摘要： A calling communication unit (210) transmits a dispatch communication request to a communication infrastructure (202). The dispatch communication request includes at least a dispatch identification of a called communication unit (e.g., 216). In response to the dispatch communication request, the calling communication unit receives from the communication infrastructure a telephone number associated with a voice mail server (222) that provides voice mail service to the called communication unit and an identification of a mailbox at the voice mail server. The calling communication unit then transmits to the voice mail server the identification of the mailbox and a voice communication. Finally, the voice mail server stores the voice communication in the mailbox.
摘要翻译： 呼叫通信单元（210）向通信基础设施（202）发送调度通信请求。 调度通信请求至少包括被叫通信单元（例如，216）的调度标识。 响应于调度通信请求，呼叫通信单元从通信基础设施接收与向被叫通信单元提供语音邮件服务的语音邮件服务器（222）相关联的电话号码以及语音邮件服务器上的邮箱的标识 。 呼叫通信单元然后向语音邮件服务器发送邮箱的标识和语音通信。 最后，语音邮件服务器将语音通信存储在邮箱中。
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公开(公告)号：US5003617A
公开(公告)日：1991-03-26
申请号：US563894
申请日：1990-08-06
CPC分类号： H04H20/67 , H04B7/2625
摘要： A simulcast broadcast system wherein two signals (103 and 106) intended for simultaneous broadcast are transmitted from a source site (100) to remote sites (200) discrete from one another. At the remote sites, the two signals are separately processed, including the introduction of appropriate delay (305 and 312), prior to combining them for broadcast in conjunction with other remote sites. One or more monitoring sites (400) can also be provided to monitor reception coherence within the system and to provide operating measurement information to allow automatic control of various simulcast system parameters, including delay.
摘要翻译： 一种同时广播系统，其中用于同时广播的两个信号（103和106）从源站点（100）发送到彼此离散的远程站点（200）。 在远程站点，两个信号被分开处理，包括引入适当的延迟（305和312），然后将它们与其他远程站点结合进行广播。 还可以提供一个或多个监视站点（400）以监视系统内的接收一致性并提供操作测量信息，以允许自动控制各种联播系统参数，包括延迟。
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公开(公告)号：US4490684A
公开(公告)日：1984-12-25
申请号：US455347
申请日：1983-01-03
申请人： Robert L. Epsom , Paul H. Gailus
发明人： Robert L. Epsom , Paul H. Gailus
CPC分类号： H03F1/345 , H03F1/3229 , H03F2200/198 , H03F2201/3212
摘要： A quadrature combiner circuit is provided which employs a quadrature coupler to split an input radio frequency signal into split radio frequency signals which are amplified by respective amplifiers and recombined in a second quadrature coupler in such a manner as to minimize intermodulation distortion products. A feedback loop is employed to assure that the split amplified radio frequency signals incident upon the second quadrature combiner are maintained in quadrature relationship to assure intermodulation product cancellation.
摘要翻译： 提供了一种正交组合器电路，其使用正交耦合器将输入射频信号分离成分离的射频信号，分离的射频信号由相应放大器放大并以第二正交耦合器重新组合，使得最小化互调失真产物。 使用反馈回路来确保入射在第二正交组合器上的分离放大射频信号保持正交关系，以确保互调产物消除。
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公开(公告)号：US4475092A
公开(公告)日：1984-10-02
申请号：US451504
申请日：1982-12-20
CPC分类号： H01P7/04
摘要： An absorptive resonant cavity filter suitable for use on the output of a transmitter power amplifier and capable of substantially constant predetermined resistive input impedance at all frequencies. The structure comprises a bandpass cavity which instead of an input coupling loop employs a conductor coupled from the input and configured along the wall of the cavity to form a transmission line of predetermined impedance and terminated by a resistor of similar impedance value.
摘要翻译： 一种吸收式谐振腔滤波器，适用于发射机功率放大器的输出，并且能够在所有频率下具有基本恒定的预定电阻输入阻抗。 该结构包括带通腔，其代替输入耦合回路采用从输入端耦合并沿着腔的壁配置的导体，以形成预定阻抗的传输线并由具有相似阻抗值的电阻端接。
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7.发明授权
公开(公告)号：US4775847A
公开(公告)日：1988-10-04
申请号：US939822
申请日：1986-12-09
摘要： A tunable resonant cavity filter structure is disclosed which includes an enhanced ground return internal to the cavity which effectively eliminates generation of deterioration wide band noise and optimizes unloaded Q as well as rending resonant frequency stable with vibration. In its preferred form, the enhanced ground return is in the form of a ground return clip with reliant radial projections that mate with the threads of the threadable tuning element used to determine final operating frequency. The radial projections are deflected in cantilever fashion so as to generate sufficient pressure to break thru any oxides in the tuning element threads and ensure metal-to-metal contact.
摘要翻译： 公开了一种可调谐谐振腔滤波器结构，其包括在空腔内部的增强的接地回路，其有效地消除了恶化宽带噪声的产生，并且优化了无负载的Q以及使振荡时谐振频率稳定。 在其优选形式中，增强的接地返回是具有依赖的径向突起的接地返回夹的形式，所述径向突起与用于确定最终操作频率的可螺纹调谐元件的螺纹配合。 径向突起以悬臂方式偏转，以便产生足够的压力，以破坏调谐元件螺纹中的任何氧化物并确保金属与金属的接触。
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公开(公告)号：US4442416A
公开(公告)日：1984-04-10
申请号：US336202
申请日：1981-12-31
CPC分类号： H03H11/30
摘要： A variable impedance synthesis circuit is provided for generating a selected impedance, whether real or complex, at a predetermined port. The variable impedance synthesis circuit exhibits the selected impedance in response to control signals applied thereto.
摘要翻译： 提供了一种可变阻抗合成电路，用于在预定端口处产生无论实际还是复数的选定阻抗。 可变阻抗合成电路响应于施加到其上的控制信号而显示所选择的阻抗。
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公开(公告)号：US4430619A
公开(公告)日：1984-02-07
申请号：US336194
申请日：1981-12-31
CPC分类号： H03F1/3223 , H03F3/189
摘要： Apparatus is provided for inhibiting the generation of intermodulation products in a radio frequency amplifier coupled to a circulator. A control circuit generates a control signal exhibiting indicia of the amount of isolation provided by the circulator. The control signal is provided to a variable impedance synthesis circuit coupled to the circulation isolation port such that the impedance synthesis circuit exhibits the appropriate impedance to maximize circulation isolation. Intermodulation is thus minimized.
摘要翻译： 提供了用于抑制耦合到循环器的射频放大器中产生互调产物的装置。 控制电路产生显示由循环器提供的隔离量的标记的控制信号。 控制信号提供给耦合到循环隔离端口的可变阻抗合成电路，使得阻抗合成电路呈现适当的阻抗以使循环隔离最大化。 因此互调最小化。
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公开(公告)号：US4383334A
公开(公告)日：1983-05-10
申请号：US273143
申请日：1981-06-12
申请人： Robert L. Epsom
发明人： Robert L. Epsom
CPC分类号： H03D7/00 , H04B1/109 , H03D2200/0088 , H03D7/165
摘要： A mixer circuit is provided which achieves substantially reduced intermodulation distortion products as compared with conventional mixers. The present mixer circuit includes first and second mixers situated in first and second signal paths, respectively. A small portion of the signals incident upon the input of the first mixer are coupled to the input of the second mixer via a first coupler. The first coupler effectively substantially attenuates signals incident upon the first mixer before providing said signals to the input of the second mixer. Intermodulation products as well as desired signals are generated at the outputs of both the first and second mixer. The output of the second mixer is coupled to the output of the first mixer via a second coupler. The second coupler exhibits an appropriate amount of attenuation, such that the intermodulation products which are coupled from the output of the second mixer to the output of the first mixer exhibit an amplitude equal to the first mixer intermodulation products. Thus, the intermodulation products from the first and second mixers meet at the circuit output in such a manner as to destructively interfere with each other resulting in substantial intermodulation product cancellation while the remaining desired signals are provided to the circuit output.
摘要翻译： 提供了一种混合电路，其与传统的混频器相比实现了显着减少的互调失真产物。 本混频器电路分别包括位于第一和第二信号路径中的第一和第二混频器。 入射到第一混频器的输入端的信号的一小部分经由第一耦合器耦合到第二混频器的输入。 在将所述信号提供给第二混频器的输入之前，第一耦合器有效地基本上衰减入射在第一混频器上的信号。 在第一和第二混频器的输出处产生互调产物以及期望的信号。 第二混频器的输出经由第二耦合器耦合到第一混频器的输出端。 第二耦合器呈现适当量的衰减，使得从第二混频器的输出耦合到第一混频器的输出的互调产物的幅度等于第一混频器互调产物。 因此，来自第一和第二混频器的互调产物在电路输出处相交，以便相互干涉地相互干扰，导致实质的互调产物消除，而剩余的期望信号被提供给电路输出。
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