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1. 发明授权

US4057760A Frequency synthesized scanner having conductive programming elements for channel selection 失效
标题翻译：具有用于频道选择的导电编程元件的频率合成扫描器
公开(公告)号：US4057760A
公开(公告)日：1977-11-08
申请号：US694016
申请日：1976-06-07
申请人： Richard C. Koch
发明人： Richard C. Koch
IPC分类号： H03J5/02 , H03J7/28 , H03L7/099 , H03L7/187 , H04B1/06
CPC分类号： H03L7/0805 , H03J5/0272 , H03J7/285 , H03L7/099 , H03L7/187
摘要： A multi-band radio receiver is disclosed for automatically and sequentially tuning to a plurality of discreet, separate preselected frequencies. The receiver incorporates a phase locked loop frequency synthesizer which includes two separate voltage tuned oscillators alternately operative according to the band of operation of the receiver. Channels are selected by inserting metal combs having teeth removed to form a binary coded memory into corresponding sockets in the receiver. One comb is used for each of the channels to which the receiver can tune. By replacing a specific comb with an alternate comb, the channel to which the receiver tunes can be correspondingly changed. The combs are made of relatively brittle aluminum in order that they may be readily programmed to the appropriate binary coded decimal arrangement of pins. Programming is accomplished by the simple bending and breaking of the appropriate teeth on the comb to achieve the desired binary coded information to achieve tuning to the desired frequency.
摘要翻译：公开了一种多频带无线电接收机，用于自动并顺序地调谐到多个谨慎的分离的预选频率。接收机包括锁相环频率合成器，其包括根据接收机的操作频带交替操作的两个单独的电压调谐振荡器。通过插入具有齿去除的金属梳来形成通道，以形成二进制编码存储器到接收器中的相应插座中。一个梳子用于接收机可以调谐的每个通道。通过用替代梳替换特定梳，可以相应地改变接收器调谐到的信道。梳子由相对脆的铝制成，以便它们可以容易地被编程成适当的二进制编码的十进制排列的销。通过梳子上的适当齿的简单弯曲和断裂来实现编程，以实现期望的二进制编码信息以实现调谐到期望的频率。

2. 发明授权

US3974452A Battery powered scanning receiver with synchronous power cycling through electrically operable visual indicators 失效
标题翻译：电池供电的扫描接收器，通过电动可视指示灯同步电源循环
公开(公告)号：US3974452A
公开(公告)日：1976-08-10
申请号：US503748
申请日：1974-09-06
申请人： Charles Cunningham
发明人： Charles Cunningham
IPC分类号： H03J7/18 , H04B1/32
CPC分类号： H03J7/18
摘要： A receiver is disclosed for signal-seeking operation on a plurality of channels. The receiver uses power cycling of the RF amplifier stage, mixers, local oscillators and intermediate frequency amplifiers which is in synchrony with the electronic stepping switch used to sequence among the channels. The power which is cycled to these portions of the receiver passes in series through light emitting diode channel indicators.
摘要翻译：公开了用于在多个通道上进行信号寻找操作的接收机。接收机使用RF放大器级，混频器，本地振荡器和中频放大器的功率循环，其与用于在通道之间进行排序的电子步进开关同步。循环到接收器的这些部分的功率通过发光二极管通道指示器串联通过。

3. 发明授权

US3974450A Dual frequency FM receiver 失效
标题翻译：双频FM接收机
公开(公告)号：US3974450A
公开(公告)日：1976-08-10
申请号：US596512
申请日：1975-07-16
申请人： Charles Cunningham, Jr.
发明人： Charles Cunningham, Jr.
IPC分类号： H03G1/02 , H03G3/00 , H04B1/28 , H04B7/12 , H04B1/06
CPC分类号： H03G3/005 , H03G1/02 , H04B1/28 , H04B7/12
摘要： A receiver is disclosed which will receive signals on either one of two closely spaced frequencies. The receiver is of the superheterodyne type and has a local oscillator frequency midway between the two frequencies which the receiver is tuned to. The receiver also includes a tone squelch circuit which mutes the audio unless a tone is received for a period of time.
摘要翻译：公开了一种接收机，其将在两个紧密间隔的频率中的任何一个上接收信号。接收机具有超外差类型，并且在接收机调谐到的两个频率之间具有本地振荡器频率。接收机还包括音调静噪电路，使得音频静音，除非在一段时间内接收到音调。

4. 发明授权

US4352992A Apparatus for addressably controlling remote units 失效
标题翻译：用于可远程控制远程单元的设备
公开(公告)号：US4352992A
公开(公告)日：1982-10-05
申请号：US125285
申请日：1980-02-27
申请人： James A. Buennagel , Richard C. Koch
发明人： James A. Buennagel , Richard C. Koch
IPC分类号： G08C25/00 , H04Q9/14 , G01R21/00
CPC分类号： G08C25/00 , H04Q9/14 , Y10T307/477
摘要： A load management system which includes a central message generator and a plurality of addressable remote load controllers which selectively connect and disconnect high power deferrable loads to and from a power source in response to transmitted messages. The load controllers include means for translating coded tone pair inputs into digital data. Tones selected from three such tone pairs are used in one scheme, where a tone selected from the first tone pair is used for the initial bit of a message, and subsequent tones are alternately selected from the remaining two tone pairs or the remaining bits. One of the tones of the first tone pair is utilized as a test tone which initiates a test routine sequence. The test tone can be transmitted by a portable, low power transmitter to test the functioning of the remote units. A message format includes two code sets, a zone code set and a command/address code set. Each load controller has a preprogrammed zone identifier and a preprogrammed address identifier, and is responsive to a command/address code message only when the last received zone code message has identified the preprogrammed zone identifier of that load controller and the command/address message indicates the preprogrammed address identifier of that load controller. All load controllers having a common zone identifier are responsive to a scram instruction message which identifies that zone.
摘要翻译：一种负载管理系统，其包括中央消息发生器和多个可寻址的远程负载控制器，其响应于所发送的消息而选择性地将大功率可延迟负载连接到电源并从电源断开。负载控制器包括用于将编码音调对输入转换成数字数据的装置。在一个方案中使用从三个这样的音调对中选择的音调，其中从第一音调对选择的音调用于消息的初始位，并且从剩余的两个音调对或其余位中交替地选择后续音调。第一音调对的音调之一被用作启动测试例程序列的测试音。测试音可由便携式低功率发射机传输，以测试遥控单元的功能。消息格式包括两个代码集，区域代码集和命令/地址代码集。每个负载控制器具有预编程区域标识符和预编程地址标识符，并且只有当最后接收到的区段代码消息已经识别出该负载控制器的预编程区域标识符时才响应于命令/地址代码消息，并且命令/地址消息指示负载控制器的预编程地址标识符。具有公共区域标识符的所有负载控制器响应于识别该区域的分流指令消息。

5. 发明授权

US4454509A Apparatus for addressably controlling remote units 失效
标题翻译：用于可远程控制远程单元的设备
公开(公告)号：US4454509A
公开(公告)日：1984-06-12
申请号：US399349
申请日：1982-07-19
申请人： James A. Buennagel , Richard C. Koch
发明人： James A. Buennagel , Richard C. Koch
IPC分类号： G08C25/00 , H04Q9/14 , G01R21/00
CPC分类号： G08C25/00 , H04Q9/14 , Y10T307/477
摘要： A load management system which includes a central message generator and a plurality of addressable remote load controllers which selectively connect and disconnect high power deferrable loads to and from a power source in response to transmitted messages. The load controllers include means for translating coded tone pair inputs into digital data. Tones selected from three such tone pairs are used in one scheme, where a tone selected from the first tone pair is used for the initial bit of a message, and subsequent tones are alternately selected from the remaining two tone pairs or the remaining bits. One of the tones of the first tone pair is utilized as a test tone which initiates a test routine sequence. The test tone can be transmitted by a portable, low power transmitter to test the functioning of the remote units. A message format includes two code sets, a zone code set and a command/address code set. Each load controller has a preprogrammed zone identifier and a preprogrammed address identifier, and is responsive to a command/address code message only when the last received zone code message has identified the preprogrammed zone identifier of that load controller and the command/address message indicates the preprogrammed address identifier of that load controller. All load controllers having a common zone identifier are responsive to a scram instruction message which identifies that zone.
摘要翻译：一种负载管理系统，其包括中央消息发生器和多个可寻址的远程负载控制器，其响应于所发送的消息而选择性地将大功率可延迟负载连接到电源并从电源断开。负载控制器包括用于将编码音调对输入转换成数字数据的装置。在一个方案中使用从三个这样的音调对中选择的音调，其中从第一音调对选择的音调用于消息的初始位，并且从剩余的两个音调对或其余位中交替地选择后续音调。第一音调对的音调之一被用作启动测试例程序列的测试音。测试音可由便携式低功率发射机传输，以测试遥控单元的功能。消息格式包括两个代码集，区域代码集和命令/地址代码集。每个负载控制器具有预编程区域标识符和预编程地址标识符，并且只有当最后接收到的区段代码消息已经识别出该负载控制器的预编程区域标识符时才响应于命令/地址代码消息，并且命令/地址消息指示负载控制器的预编程地址标识符。具有公共区域标识符的所有负载控制器响应于识别该区域的分流指令消息。

6. 发明授权

US4219821A Automatic direction finding system 失效
标题翻译：自动测向系统
公开(公告)号：US4219821A
公开(公告)日：1980-08-26
申请号：US940254
申请日：1978-09-07
申请人： Harold N. Selim
发明人： Harold N. Selim
IPC分类号： G01S3/14 , G01S3/16 , G01S3/20
CPC分类号： G01S3/143 , G01S3/16
摘要： An automatic direction finding (ADF) system including a direction finding antenna array which connects to a radio receiver to process an audio output signal selectively illuminating a segment of a segmented circular visual directional display indicating the direction from which the received signal arrived. In an FM version, the ADF system electronically switches between antennas in the direction finding antenna array alternately incorporating vector information onto the received carrier in a manner that can be phase detected to produce an audio frequency signal within the normal pre-audio bandpass of the receiver. The audio frequency is then demultiplexed to produce separate vector signals. These separate vector signals are then processed for selectively illuminating a segment of the segmented circular visual directional display. When a sufficiently strong signal is not being received, the ADF system sequentially illuminates each segment of the segmented circular visual directional display in a clockwise direction at a rate which can be readily and visably perceived by an operator. This operation conveys the image of circuit activity, is exciting for an operator to watch, and may have the effect of simulating a radar sweep, although it is in no way related to the searching by the receiver. An additional segment is positioned in the center of the display to indicate the processing of a received radio frequency signal by the ADF system.
摘要翻译：一种自动方向发现（ADF）系统，包括测向天线阵列，其连接到无线电接收器以处理音频输出信号，以选择性地照亮分段的圆形可视方向显示的段，指示接收信号到达的方向。在FM版本中，ADF系统在寻找天线阵列中的天线之间电子地切换，以可相位检测的方式将矢量信息交替地并入到接收的载波上，以在接收机的正常预音频带通内产生音频信号。然后将音频解复用以产生单独的矢量信号。然后处理这些单独的矢量信号以选择性地照亮分段的圆形可视方向显示的片段。当没有接收到足够强的信号时，ADF系统以顺时针方向顺序照射分段的圆形可视方向显示的每个段，其速度可以由操作员容易地且可见地感觉到。该操作传达电路活动的图像，对于操作者来说是令人兴奋的，并且可能具有模拟雷达扫描的效果，尽管它与接收机的搜索没有任何关系。附加段位于显示器的中心，以指示ADF系统对接收到的射频信号的处理。

7. 发明授权

US3996522A Crystal controlled stepping radio receiver having novel oscillator circuit 失效
标题翻译：具有新颖振荡电路的晶体控制步进无线电接收机
公开(公告)号：US3996522A
公开(公告)日：1976-12-07
申请号：US632473
申请日：1975-11-17
申请人： Richard C. Koch , Stephen J. Hoffman
发明人： Richard C. Koch , Stephen J. Hoffman
IPC分类号： H03J5/24 , H04B1/34
CPC分类号： H03J5/246
摘要： A signal-seeking radio receiver is disclosed which has two different types of local oscillator circuits. One type of local oscillator includes two transistors, the emitter of the first connecting to the base of the second and having a capacitor connecting between the emitter of the second and the base of the first. A large number of diode switched crystals can be connected to the base of the first transistor of the local oscillator without introducing an instability in the oscillator circuit. The second type of local oscillator is of the same general design as the first type except that it additionally includes a third transistor connected to the second transistor in a fashion similar to the first transistor. In this second oscillator configuration, the circuitry used to step among the channels also is used to alternately make either the first or third transistor operative in the local oscillator circuit.
摘要翻译：公开了一种寻呼无线电接收机，其具有两种不同类型的本地振荡器电路。一种类型的本地振荡器包括两个晶体管，第一个连接到第二个基极的发射极，并且具有连接在第二个发射极和第一个发射极之间的电容器的电容器。大量二极管开关晶体可以连接到本地振荡器的第一晶体管的基极，而不引入振荡器电路中的不稳定性。第二种类型的本地振荡器具有与第一类型相同的一般设计，除了它以类似于第一晶体管的方式另外包括连接到第二晶体管的第三晶体管。在该第二振荡器配置中，用于在通道中步进的电路也用于交替地使第一或第三晶体管在本地振荡器电路中工作。

8. 发明授权

US3996521A Signal-seeking radio receiver with band tuning and selecting means 失效
标题翻译：具有频带调谐和选择手段的寻呼无线电接收机
公开(公告)号：US3996521A
公开(公告)日：1976-12-07
申请号：US632474
申请日：1975-11-17
申请人： Kenneth R. Owens
发明人： Kenneth R. Owens
IPC分类号： H03J5/24 , H03J7/18 , H04B1/34
CPC分类号： H03J5/248 , H03J5/246 , H03J7/18
摘要： A signal-seeking radio receiver is disclosed which can be programmed to receive 20 different channels in any combination of three bands with a minimum of switching circuitry. Additionally disclosed is tuning circuitry for tuning the receiver in response to the programming to either the upper or lower portion of any given band.
摘要翻译：公开了一种信号寻找无线电接收机，其可被编程为以最小的开关电路接收三个频带的任何组合中的20个不同信道。另外公开了用于响应于编程到任何给定频带的上部或下部的调谐接收机的调谐电路。

9. 发明授权

US4713661A Transportation vehicle location monitor generating unique audible messages 失效
标题翻译：运输车辆位置监测器产生独特的声音消息
公开(公告)号：US4713661A
公开(公告)日：1987-12-15
申请号：US766607
申请日：1985-08-16
申请人： Joseph E. Boone , W. Bruce Ahlemeyer
发明人： Joseph E. Boone , W. Bruce Ahlemeyer
IPC分类号： G08G1/123 , G09B29/10 , G08G1/12
CPC分类号： G08G1/123 , G09B29/106
摘要： A transportation vehicle alert monitor incorporating a speech synthesizer for voice announcement of vehicle location by stop number. The monitor includes a radio receiver responsive to coded RF signals containing either current vehicle location data or data for programming the monitor. Current location data includes school system number, bus number, route number, and stop number. Programming data includes school system number, monitor serial number, student number, two route numbers for one bus number, and initial and final alert stops for each route. Programability of initial alert stops allows each alert monitor to be remotely adjusted to allow varying conditions including the discharge between adjacent stops, traffic conditions, and distance from a passenger's house to the stop.
摘要翻译：一种运输车辆警报监视器，其包括用于通过停车号码的车辆位置的语音通知的语音合成器。监视器包括响应于包含当前车辆位置数据的编码RF信号的无线电接收器或用于对监视器进行编程的数据。当前位置数据包括学校系统编号，总线编号，路线号码和停车号码。编程数据包括学校系统编号，监视序列号，学生编号，一个总线号码的两个路线号码，以及每个路线的初始和最终警报停止。初始警报停止的可编程性允许每个警报监视器进行远程调整，以允许不同的条件，包括相邻站点之间的排放，交通状况以及从乘客到停车站的距离。

10. 发明授权

US4627100A Wide band radio receiver 失效
标题翻译：宽带无线电接收机
公开(公告)号：US4627100A
公开(公告)日：1986-12-02
申请号：US687191
申请日：1984-12-28
申请人： Shigeru Takano
发明人： Shigeru Takano
IPC分类号： H03B21/02 , H03D7/16 , H03J5/02 , H03J7/18 , H04B1/26
CPC分类号： H03J5/0281 , H03D7/161 , H03B21/02
摘要： A circuit arrangement for a wide band superheterodyne radio receiver for receiving wide band FM, narrow band FM, and AM modulated radio signals between 25 and 550 MHz. The first LO is a phase locked loop controlled VCO, with central processing unit control of the phase locked loop circuitry. The first IF frequency is higher than the highest received frequency and the output frequency of the first LO is higher than the first IF. A second LO and second mixer convert the signal to a second IF lower than the first IF. Separate third and fourth IF band pass filters are provided at the second IF for WFM and for NFM/AM, respectively. The output of the third IF filter (WFM) is converted by a third LO and third mixer to a third IF lower than the second IF. A WFM demodulator is provided at the third IF. The output of the fourth IF filter (NFM/AM) is converted by a fourth LO and fourth mixer to a fourth IF lower than the second IF frequency. A fifth IF band pass filter is provided at the fourth IF. The output of the fifth IF filter is received be separate NFM and AM demodulators. Each demodulator is followed by its own audio amplifier, each selectively connectable to a speaker.
摘要翻译：一种用于宽带超外差无线电接收机的电路装置，用于在25和550MHz之间接收宽带FM，窄带FM和AM调制无线电信号。第一个LO是一个锁相环控制的VCO，其中央处理单元控制锁相环电路。第一个IF频率高于最高接收频率，第一个LO的输出频率高于第一个IF。第二LO和第二混频器将信号转换成比第一IF低的第二IF。分别在WFM和NFM / AM的第二IF处分别提供第三和第四IF带通滤波器。第三IF滤波器（WFM）的输出由第三LO和第三混频器转换成比第二IF低的第三IF。在第三IF提供WFM解调器。第四IF滤波器（NFM / AM）的输出由第四LO和第四混频器转换成低于第二IF频率的第四IF。第四个IF提供第五个IF带通滤波器。接收到第五个IF滤波器的输出是分离的NFM和AM解调器。每个解调器后面都有自己的音频放大器，每个都可以选择性地连接到扬声器。

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