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公开(公告)号：US2979616A
公开(公告)日：1961-04-11
申请号：US67917257
申请日：1957-08-20
申请人： ALADDIN IND INC
发明人： MASON FRANCIS G
IPC分类号： H03J5/06
CPC分类号： H03J5/06
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公开(公告)号：US2496454A
公开(公告)日：1950-02-07
申请号：US51603943
申请日：1943-12-29
申请人： ELLIOTT HAROLD F
发明人： ELLIOTT HAROLD F
IPC分类号： H03J5/06
CPC分类号： H03J5/06
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公开(公告)号：US2442935A
公开(公告)日：1948-06-08
申请号：US56940544
申请日：1944-12-22
IPC分类号： H03J5/06
CPC分类号： H03J5/06 , Y10T74/20636
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公开(公告)号：US4464944A
公开(公告)日：1984-08-14
申请号：US313278
申请日：1981-10-21
申请人： Teruo Shimazu , Toshio Edamoto , Azuma Miyazawa
发明人： Teruo Shimazu , Toshio Edamoto , Azuma Miyazawa
CPC分类号： H03J5/12
摘要： A push-button type tuning apparatus comprises a frame consisting of a front side plate part, a rear side plate part, right and left side plate parts, and a bottom plate part, a coil case fixedly provided on the frame, a plurality of guiding members at least having one end fixed to the front side plate part of the frame and extending towards the rear side plate part, a slider capable of sliding under the guide of said guiding members provided on the guiding members, a rotatable member axially supported at both side plate parts in a rotatable state, and a plurality of push-button assemblies arranged and provided in the frame. The frame is formed from a single plate member by unitarily bending the front and rear side plate parts and the right and left side plate parts at four sides of the bottom plate part.
摘要翻译： 一种按钮式调谐装置，包括由前侧板部，后侧板部，左右侧板部和底板部构成的框架，固定设置在框架上的线圈套，多个导向 至少一端至少固定在框架的前侧板部分并朝向后侧板部分延伸的构件，能够在设置在引导构件上的所述引导构件的引导件下滑动的滑块，在两个轴向支撑的可旋转构件 侧板部件处于可旋转状态，以及布置并设置在框架中的多个按钮组件。 框架由单板构件形成，通过在底板部分的四侧将前后板部分和左右侧板部分整体弯曲。
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公开(公告)号：US4243962A
公开(公告)日：1981-01-06
申请号：US897420
申请日：1978-04-18
CPC分类号： H03J5/0272 , Y10T29/49885
摘要： A digital tuning element and method of making same for an electronic tuning means for an automobile radio which has a drive means for positioning said element, detecting means providing an electrical output signal related to the position of said tuning element, and means receiving the output signal for controlling a tuning circuit. The tuning element is a body which is angularly positionable and includes a coding means on its surface, with the detecting means sensing the coding means for providing binary coded output signals over a plurality of output channels to a receiving means for controlling a tuning circuit.
摘要翻译： 一种用于汽车无线电的电子调谐装置的数字调谐元件和方法，所述电子调谐装置具有用于定位所述元件的驱动装置，提供与所述调谐元件的位置有关的电输出信号的检测装置，以及接收所述输出信号的装置 用于控制调谐电路。 调谐元件是可以角度定位并且在其表面上包括编码装置的主体，检测装置感测用于在多个输出通道上提供二进制编码的输出信号的编码装置，用于控制调谐电路的接收装置。
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公开(公告)号：US4114459A
公开(公告)日：1978-09-19
申请号：US678975
申请日：1976-04-21
摘要： A detent type tuning mechanism for a UHF tuner having a continuously variable tuning shaft includes a detented selector shaft, and a fine tuning mechanism including a rotatable turret having mounted thereon a plurality of cams, each adjustable by a fine tuning shaft when the selector shaft is positioned in a predetermined position. A variable impedance element, operated by the fine tuning mechanism, is provided for fine tuning the tuner independently of the position of the selector shaft and the tuning shaft to permit a precise numerical display of the UHF channel selected in each position of the detented selector shaft.
摘要翻译： 一种具有无级调谐轴的UHF调谐器的定位型调谐机构包括一个定位选择轴和一个微调机构，该调谐机构包括一个可转动的转台，其上安装有多个凸轮，每个凸轮均可由微调轴调节，当选择轴为 定位在预定位置。 提供由微调机构操作的可变阻抗元件，用于独立于选择器轴和调谐轴的位置来微调调谐器，以允许在定位选择器轴的每个位置中选择的UHF通道的精确数值显示 。
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公开(公告)号：US4081771A
公开(公告)日：1978-03-28
申请号：US747580
申请日：1976-12-06
CPC分类号： H03J5/0209 , H03J7/12
摘要： A television tuner system includes a varactor diode as the frequency determining element and means lacking a fine tuning control for addressing the varactor. In the addressing means, a plurality of DC potentials, each defining the band edges of one of the 82 standard broadcast television channels, are selectively accessible for deriving a nominal tuning voltage defining a frequency near the center of a selected channel and a pair of control voltages defining a restricted range of frequencies about the channel center frequency. The nominal tuning voltage is initially supplied to the varactor for tuning to the channel center frequency and is subsequently decoupled therefrom wherein tuning is maintained within the restricted range of frequencies by confining the voltage supplied to the varactor between the pair of control voltages. Automatic frequency control means are used to tune the varactor to a received signal within the restricted range of frequencies.
摘要翻译： 电视调谐器系统包括作为频率确定元件的变容二极管和缺少用于寻址变容二极管的微调控制的装置。 在寻址装置中，可以选择性地访问定义82个标准广播电视频道中的一个的频带边缘的多个DC电位，用于导出限定所选频道中心附近的频率的标称调谐电压和一对控制 定义关于频道中心频率的限制频率范围的电压。 标称调谐电压最初被提供给变容二极管，用于调谐到通道中心频率，并随后与其分离，其中通过限制在一对控制电压之间提供给变容二极管的电压，将调谐保持在受限频率范围内。 自动频率控制装置用于将变容二极管调谐到受限频率范围内的接收信号。
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公开(公告)号：US3972240A
公开(公告)日：1976-08-03
申请号：US500450
申请日：1974-08-26
摘要： A detent type tuning mechanism for a UHF tuner having a continuously variable tuning shaft includes a detented selector shaft, a gear train interconnecting the tuning shaft and the selector shaft, and a memory type fine tuning mechanism including a rotatable turret having mounted thereon a plurality of cams each engageable by a fine tuning shaft when the selector shaft is positioned in predetermined ones of the detent positions. A Geneva mechanism is employed to rotate the turret a predetermined increment to bring a different one of the cams into engagement with the fine tuning shaft when the selector shaft is rotated a predetermined number of detent positions. Each cam thereby serves as a memory fine tuning member for a predetermined group of adjacent UHF channels corresponding to a like number of detent positions of the selector shaft. An indicator dial provides a numerical display of the precise UHF channel selected at each position of the detented selector shaft.
摘要翻译： 一种用于具有无级调谐轴的UHF调谐器的定位型调谐机构，包括一个定位选择轴，一个连接调谐轴和选择轴的齿轮系，以及一个存储型微调机构，包括一个可转动的转台， 当选择器轴定位在预定位置的定位位置时，各个可由微调轴接合的凸轮。 采用日内舍机构使转台旋转预定的增量，以使当选择器轴旋转预定数量的制动位置时，不同的凸轮与微调轴接合。 因此，每个凸轮用作对应于选择器轴的相同数量的止动位置的预定组的相邻UHF通道的存储器微调构件。 指示盘提供在定位选择轴的每个位置选择的精确UHF通道的数字显示。
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公开(公告)号：US3727156A
公开(公告)日：1973-04-10
申请号：US3727156D
申请日：1972-02-01
申请人： MOTOROLA INC
发明人： OLAH E
CPC分类号： H03J5/06
摘要： A radio tuner device for a pushbutton radio receiver includes a tuning core assembly mounted on a pair of roller brackets movable along a pair of spaced tracks for changing the radio frequency reception of the radio receiver. An equalizer assembly comprising a rack and gear arrangement, interconnects the brackets to insure equalized movement thereof along respective tracks to provide in turn equalized movement of tuning cores with respect to stationary tuning coils included in the tuning core assembly. A pushbutton actuated memory assembly mounted on a lower plate includes U-shaped clamping springs and associated memory bars, the latter of which are held in preselected locations by the former for positioning the movable core carriage to locations relative to those of the memory bars in response to the depression of corresponding pushbutton mechanisms. The pushbutton mechanisms are mounted on an upper plate and may be lifted to release lever arms incorporated therein which serve to compress the U-shaped clamping springs upon depression of a corresponding pushbutton mechanism from the released position, to permit movement of an associated memory bar to a new location, corresponding to a desired radio frequency setting. Thereafter, upon depression of the pushbutton mechanism, the tuning core carriage is returned to the new location. A unique manual tuning declutch assembly provided in each pushbutton mechanism includes a plate movable in a direction transverse the movement of the pushbutton mechanism in response to the depression of the latter from a normal position, to move a declutch bar in a like direction for disengagement of the manual tuning control mechanism. The declutch assembly is disabled upon depression of the pushbutton mechanism subsequent to releasing the latter for resetting a memory bar. Push-button actuator assemblies mounted on a plate sandwiched between the upper and lower plates are provided to move the core carriage to a position set by a corresponding memory bar. Each pushbutton actuator assembly includes a rack and gear arrangement. Movement of a pair of racks toward each other in response to the depression of an associated pushbutton mechanism clamps a stationary memory bar and the core carriage between respective projections extending from the rack members, moving the core carriage to a position relative to the location of the memory bar.
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