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公开(公告)号：US4679245A
公开(公告)日：1987-07-07
申请号：US853472
申请日：1986-06-20
CPC分类号： H03G3/3052 , G01R15/005 , G01R29/26 , H03G3/345 , H03J7/065
摘要： A linearity control system comprises a current controlling circuit responsive to a meter control signal for controlling the current flow through the meter so as to increase the range of linear response of the meter.
摘要翻译： 线性控制系统包括响应于仪表控制信号的电流控制电路，用于控制通过仪表的电流，以增加仪表的线性响应范围。
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公开(公告)号：US4523197A
公开(公告)日：1985-06-11
申请号：US471892
申请日：1983-03-03
摘要： An antenna comprises an antenna body telescopically movable between a fully retracted position and a fully extended position and having a free end. A BNC-type coaxial receptacle is mounted to the free end of the antenna body. A mounting base receives the BNC-type coaxial receptacle when the antenna is in the fully retracted and completes an electrical ground circuit to the BNC-type receptacle.
摘要翻译： 天线包括天线体，其可在完全缩回位置和完全伸出位置之间可伸缩地移动并且具有自由端。 BNC型同轴插座安装在天线体的自由端。 当天线完全缩回时，安装座接收BNC型同轴插座，并完成到BNC型插座的电接地电路。
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公开(公告)号：US5396544A
公开(公告)日：1995-03-07
申请号：US142719
申请日：1993-10-25
CPC分类号： H04M1/654
摘要： A telephone answering apparatus permits a called party to select between an automatic mode wherein a message is automatically played back to a caller without any action of the called party and a prenouncer mode wherein a message is played back to the caller when activated by the called party. The telephone answering apparatus includes a ring detector circuit connectable to an outside line and responsive to an incoming call on the outside line for producing a ring detected signal, a timer and driver circuit responsive to the ring detected signal for producing a playback signal and a manually actuatable answer switch. A mode switch capable of selecting one of the prenouncer mode and the automatic mode is connected to the timer and driver circuit, to the ring detector circuit and to the answer switch.
摘要翻译： 电话应答装置允许被叫方在自动模式之间进行选择，其中消息被自动地回放到呼叫者而不受被叫方的任何动作，以及播放器模式，其中当由被叫方激活时向主叫方播放消息 。 电话应答装置包括一个环形检测器电路，其可连接到外线并响应于外线上的来电以产生振铃检测信号，定时器和驱动电路响应于环形检测信号产生播放信号和手动 可启动应答开关。 能够选择预报器模式和自动模式之一的模式开关连接到定时器和驱动器电路，连接到环形检测器电路和应答开关。
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公开(公告)号：US4797636A
公开(公告)日：1989-01-10
申请号：US853846
申请日：1986-06-20
CPC分类号： H03G3/3052 , G01R15/005 , G01R29/26 , H03G3/345 , H03J7/065
摘要： A radio receiver includes a noise blanking system comprising a switching circuit in the signal path which is responsive to a blanking signal for preventing passage of signals. A blanking signal producing circuit is in the signal path ahead of the switching circuit and is responsive to predetermined noise signals received by the radio receiver for producing the blanking signal. The receiver also includes an AGC circuit for producing a gain control signal and a signal strength meter coupled for response to the gain control signal. A linearity control system comprises a current controlling circuit responsive to a meter control signal for controlling the current flow through the meter so as to increase the range of linear response of the meter. A signalling circuit is coupled with the AGC circuit and with the current controlling circuit and is responsive to the gain control signal for producing the meter control signal. A tuning system for the receiver comprises a first local oscillator responsive to first oscillator control signals for varying the frequency of first oscillator signals over a first range at first increments. A second local oscillator normally produces a second oscillator signal at a fixed frequency. A frequency varying circuit is coupled with the second oscillator and responsive to second oscillator control signals for varying the frequency of the second oscillator signals over a second range at second increments which are smaller than the first increments. A control circuit produces the first and second oscillator control signals.
摘要翻译： 无线电接收机包括噪声消隐系统，其包括信号路径中的切换电路，其响应消隐信号以防止信号通过。 消隐信号产生电路处在切换电路之前的信号路径中，并且响应于由无线电接收机接收的预定的噪声信号以产生消隐信号。 接收机还包括用于产生增益控制信号的AGC电路和耦合以响应于增益控制信号的信号强度计。 线性控制系统包括响应于仪表控制信号的电流控制电路，用于控制通过仪表的电流，以增加仪表的线性响应范围。 信号电路与AGC电路和电流控制电路耦合，并响应于增益控制信号产生仪表控制信号。 用于接收机的调谐系统包括响应于第一振荡器控制信号的第一本地振荡器，用于以第一增量在第一范围上改变第一振荡器信号的频率。 第二本地振荡器通常以固定频率产生第二振荡器信号。 变频电路与第二振荡器耦合，并且响应于第二振荡器控制信号，用于以小于第一增量的第二增量在第二范围上改变第二振荡器信号的频率。 控制电路产生第一和第二振荡器控制信号。
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公开(公告)号：US4525718A
公开(公告)日：1985-06-25
申请号：US471895
申请日：1983-03-03
摘要： An antenna defines a coaxial connector receptacle when the antenna is in a fully retracted position.
摘要翻译： 当天线处于完全缩回位置时，天线限定同轴连接器插座。
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公开(公告)号：US06535164B2
公开(公告)日：2003-03-18
申请号：US09899476
申请日：2001-07-05
IPC分类号： H04B7185
CPC分类号： H04H20/59
摘要： An each area automatic selection receiver of an emergency radio signal is an emergency broadcast receiver which enables current area code CAC to be updated automatically. This receiver is constituted in such a way that a GPS receiver obtains current position information by use of the satellite positioning system, then, a converter converts the current position information into an area code by use of a conversion table to write the area code into a code memory. For that reason, even though the receiver moves anywhere, contents of the code memory are always updated to an area code of an area of the movement destination automatically. Therefore, emergency broadcast of the area is always capable of being received correctly.
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公开(公告)号：US4603370A
公开(公告)日：1986-07-29
申请号：US657377
申请日：1984-10-03
CPC分类号： H01H47/22 , H01H47/10 , Y10T307/97
摘要： A power-saving relay circuit for reducing power consumption from a power supply comprises a relay including a selectively energizable relay coil, a plurality of movable contactors, and a plurality of fixed contacts including first and second fixed contacts associated with each of the movable contactors. Each of the movable contactors is normally in electrical contact with the first fixed contact and responsive to energization of the relay coil for breaking the electrical contact with the first fixed contact and for making electrical contact with the second fixed contact. A current limiting circuit is coupled in electrical series circuit intermediate a selected one of the second fixed contacts and the relay coil. The movable contactor associated with the selected one of the second fixed contacts is capable of being coupled in circuit with the power supply for completing an electrical circuit through the current limiting circuit for energizing the relay coil.A method is also provided for reducing power consumption from a power supply by a relay of the type described above. This method comprises providing a current limiting circuit in series circuit intermediate one end of the relay coil and a selected one of the second fixed contacts; and coupling the movable contactor associated with the selected second fixed contact with the power supply.
摘要翻译： 一种用于降低电力消耗功率的节电继电器电路包括一个继电器，它包括一个选择性激励的继电器线圈，多个可动接触器，以及多个固定触点，包括与每个可动接触器相关联的第一和第二固定触点。 每个可动接触器通常与第一固定触点电接触，并且响应于继电器线圈的通电，以断开与第一固定触头的电接触并与第二固定触点电接触。 电流限制电路耦合在第二固定触点和继电器线圈中的所选择的一个中的电串联电路中。 与所选择的第二固定触点相关联的活动接触器能够与用于通过用于对继电器线圈供电的限流电路完成电路的电源进行电路耦合。 还提供了一种用于通过上述类型的继电器降低来自电源的功率消耗的方法。 该方法包括在继电器线圈的一端和所选择的第二固定触点之间的串联电路中设置限流电路; 以及将与所选择的第二固定触点相关联的可动接触器与电源耦合。
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公开(公告)号：US4631377A
公开(公告)日：1986-12-23
申请号：US703819
申请日：1985-02-21
CPC分类号： H01H15/025 , H01H15/005
摘要： A slide switch comprises a plurality of sets of aligned terminals, each set comprising at least a center terminal and two end terminals, one to either side of the center terminal and aligned along a common axis therewith, and a plurality of elongate slides respectively associated with the sets of terminals. The slides are of sufficient length to engage the center terminal and only one of the associated end terminals. An actuator mounts the slides for movement between a first position wherein the slides electrically couple each of the center terminals with one of its associated end terminals and a second position wherein the slides electrically couple each of the center terminals with the other of its associated end terminals. A light emitting element has a pair of electrodes and is responsive to a given voltage across the electrodes for emitting light. The actuator comprises an actuator body having a recess for mounting the light emitting element therein for observing the presence or absence of light therefrom during operation of the slide switch, and guides for guiding the pair of electrodes into position for electrically conductive contact respectively with the selected ones of the slides.
摘要翻译： 滑动开关包括多组对准的端子，每组包括至少一个中心端子和两个端子端子，一个至中心端子的任一侧并沿其共同的轴线对准，并且多个细长的滑动件分别与 终端机组。 滑块具有足够的长度以接合中心端子和仅相关联的端子端子之一。 致动器安装滑块以在第一位置之间移动，其中滑动件将每个中心端子与其相关联的端子端子中的一个电耦合，并且第二位置，其中滑块将每个中心端子与其相关联的端子端子 。 发光元件具有一对电极并且响应于电极两端的给定电压来发光。 致动器包括致动器主体，该致动器主体具有用于将发光元件安装在其中的凹部，用于在滑动开关的操作期间观察其是否存在光，以及引导件，用于将所述一对电极分别引导到与所选择的导电接触 一张幻灯片。
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公开(公告)号：USD494973S1
公开(公告)日：2004-08-24
申请号：US29175446
申请日：2003-02-05
申请人： Kazuyoshi Imazeki
设计人： Kazuyoshi Imazeki
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公开(公告)号：USD292704S
公开(公告)日：1987-11-10
申请号：US664061
申请日：1984-10-23
申请人： Kazuyoshi Imazeki
设计人： Kazuyoshi Imazeki
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