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1. 发明授权

US4305156A Rotary switch type television tuner 失效
标题翻译：旋转开关式电视调谐器
公开(公告)号：US4305156A
公开(公告)日：1981-12-08
申请号：US104443
申请日：1979-12-17
申请人： Katsuo Ito , Bunjiro Murata , Yoji Maeda
发明人： Katsuo Ito , Bunjiro Murata , Yoji Maeda
IPC分类号： H04B1/08 , H03J1/00 , H03J5/28 , H04B1/26 , H04N5/64 , H03J5/02
CPC分类号： H03J5/28
摘要： A television tuner comprises a rotary switching shaft, switching plates associated with the rotary switching shaft, and an input tuning portion, an interstage tuning portion and a frequency converting portion coupled to the switching plates and adapted for channel selection by means of the rotary switching shaft. An additional plate is provided between one switching plate associated with the interstage tuning portion and another switching plate associated with the frequency converting portion. The additional plate is provided with a surface acoustic wave device performing the function of a video intermediate frequency filter and with an integrated circuit including a video intermediate frequency amplifier and a video detector.
摘要翻译：电视调谐器包括旋转切换轴，与旋转切换轴相关联的切换板，以及输入调谐部分，级间调谐部分和耦合到切换板的频率转换部分，并且适于通过旋转切换轴。在与级间调谐部分相关联的一个切换板和与频率转换部分相关联的另一切换板之间设置一个附加的板。附加板设置有执行视频中频滤波器的功能的声表面波器件和具有视频中频放大器和视频检测器的集成电路。

2. 发明授权

US4207549A VHF Television tuner circuit with supression of undesired signals 失效
标题翻译： VHF电视调谐器电路，具有抑制不需要的信号
公开(公告)号：US4207549A
公开(公告)日：1980-06-10
申请号：US910890
申请日：1978-05-30
申请人： Katsuo Ito , Kazuo Kontani
发明人： Katsuo Ito , Kazuo Kontani
IPC分类号： H04B1/18 , H03J5/24 , H03J5/28 , H04B1/26 , H03J5/00
CPC分类号： H03J5/28
摘要： A VHF television tuner circuit is adapted for selecting a channel from a plurality of VHF television channels and a UHF/VHF converted television channel, by mechanical selection to form a resonant circuit having electrical characteristics corresponding to the selected channel. The tuner circuit is coupled to a VHF television signal terminal and a UHF/VHF converted television signal terminal. The tuner circuit comprises a channel selection means including a first switch and a second switch each comprising movable contacts fixedly positioned on a channel selection shaft and stationary contacts corresponding to the selectable channel positions and positioned in proximity to the movable contacts for coaction therewith. The first switch comprises a movable/stationary contact combination positioned in the vicinity of the VHF television signal terminal and responsive to selection of the UHF/VHF converted channel position for being grounded for electrostatically shielding the VHF television signal terminal. The second switch comprises a movable/stationary contact combination responsive to selection of the UHF/VHF converted channel position for connecting the UHF/VHF converted television signal terminal to the radio frequency amplifier.
摘要翻译： VHF电视调谐器电路适于通过机械选择来选择来自多个VHF电视频道和UHF / VHF转换电视频道的频道，以形成具有对应于所选频道的电气特性的谐振电路。调谐器电路耦合到VHF电视信号终端和UHF / VHF转换的电视信号终端。调谐器电路包括通道选择装置，其包括第一开关和第二开关，每个开关包括固定地定位在通道选择轴上的可动触点和对应于可选择通道位置的固定触点，并且定位在靠近可移动触点处以与之配合。第一开关包括位于VHF电视信号端子附近的可移动/固定触点组合，并响应于UHF / VHF转换通道位置的选择而被接地以静电屏蔽VHF电视信号终端。第二开关包括响应于选择用于将UHF / VHF转换的电视信号终端连接到射频放大器的UHF / VHF转换的信道位置的可移动/固定接触组合。

3. 发明授权

US3562652A Double tuned input and fixed interstage vhf tuner 失效
标题翻译：双调谐输入和固定的特殊VHF调谐器
公开(公告)号：US3562652A
公开(公告)日：1971-02-09
申请号：US3562652D
申请日：1968-03-14
申请人： GEN ELECTRIC
发明人： FANGE EUGENE K VON , GHAEM-MAGHAMI SANJAR
IPC分类号： H03J5/28 , H03J3/20 , H03J5/24 , H04B1/16
CPC分类号： H03J5/28
摘要： A VHF TUNER FOR A VHF-UHF TELEVISION RECEIVER COMPRISING THREE WAFERS MOUNTED ON A PRINTED CIRCUIT BOARD, EACH OF THE WAFERS CARRYING A PRINTED CONDUCTIVE PATTERN. TWO OF THE WAFERS COUPLE AN RF INPUT SECTION TO THE RF AMPLIFIER STAGE TO DOUBLE TUNE THE INPUT OF THE VHF TUNER. A THIRD OF THE WAFERS IS COUPLED TO THE OSCILLATOR STAGE. ROTATABLY MOUNTED CONTACT MEANS ARE ASSOCIATED WITH EACH OF THE WAFERS TO ENGAGE THE PRINTED CONDUCTIVE PATTERN IN 12 DIFFERENT VHF CONTACT POSITION AND 1 VHF CONTACT POSITION.

4. 发明授权

US3356972A Television receiving set tuning mechanism 失效
标题翻译：电视接收机调谐机制
公开(公告)号：US3356972A
公开(公告)日：1967-12-05
申请号：US44292465
申请日：1965-03-26
申请人： PACKARD BELL ELECTRONICS CORP
发明人： RIETH HAROLD F
IPC分类号： H03J5/00 , H03J5/28
CPC分类号： H03J5/28 , H03J5/00

5. 发明授权

US3333202A Television tuner 失效
公开(公告)号：US3333202A
公开(公告)日：1967-07-25
申请号：US30491263
申请日：1963-08-27
申请人： SARKES TARZIAN
发明人： VALDETTARO ALARICO A
IPC分类号： H03J5/28
CPC分类号： H03J5/28

6. 发明授权

US2995655A Television tuner 失效
标题翻译：电视调谐器
公开(公告)号：US2995655A
公开(公告)日：1961-08-08
申请号：US70245657
申请日：1957-12-12
申请人： SARKES TARZIAN
发明人： MEADOWS STANLEY R , LEWIS JR CHALMER H , PEARSON CARL E
IPC分类号： H03J5/28
CPC分类号： H03J5/28 , Y10S116/29

7. 发明授权

US2955198A Convertible vhf television tuner 失效
标题翻译：可转换vhf电视调谐器
公开(公告)号：US2955198A
公开(公告)日：1960-10-04
申请号：US68235757
申请日：1957-09-06
申请人： STANDARD COIL PROD CO INC
发明人： FREY CLEON F
IPC分类号： H03J5/28
CPC分类号： H03J5/28

8. 发明授权

US2614248A Tuning unit 失效
标题翻译：调音台
公开(公告)号：US2614248A
公开(公告)日：1952-10-14
申请号：US6400948
申请日：1948-12-07
申请人： TELE TONE RADIO CORP
发明人： OSTREICHER WARREN J
IPC分类号： H01F27/00 , H03J5/28
CPC分类号： H03J5/28 , H01F27/004

9. 发明授权

US2585844A Tuner construction 失效
公开(公告)号：US2585844A
公开(公告)日：1952-02-12
申请号：US18694150
申请日：1950-09-27
申请人： LEONARD ELECTRIC PRODUCTS CORP
发明人： ROBERT ROMERO
IPC分类号： H03J5/28
CPC分类号： H03J5/28

10. 发明授权

US4253074A Push pre-setting fine tuning device for turret type television tuners 失效
标题翻译：推动转塔式电视调谐器的预设置微调装置
公开(公告)号：US4253074A
公开(公告)日：1981-02-24
申请号：US14828
申请日：1979-02-26
申请人： Takeyoshi Tanida
发明人： Takeyoshi Tanida
IPC分类号： H03J1/14 , H03J5/28
CPC分类号： H03J1/14 , Y10T74/19516
摘要： The present fine tuning device comprises a fine tuning shaft mounted concentrically around a main channel selecting shaft supported in a chassis base. A plate spring member is disposed on the chassis for thrust biasing the fine tuning shaft. A gear member is arranged for transmitting the fine tuning movement from the fine tuning shaft to a fine tuning screw. The fine tuning shaft is provided with a radially extending flange and a peripheral gear, and the transmitting gear member is provided with a first gear engageable with the peripheral gear of the fine tuning shaft and a second gear engageable with the fine tuning screw. The plate spring member supports the rotating transmitting gear member whereby the axial direction of movement may be changed or shifted by deformation of the plate spring member. In this arrangement, when the fine tuning shaft is pushed to change the shape of the plate spring member, the first gear of the transmitting gear member is securely engaged with the peripheral gear of the fine tuning shaft. At the same time, the second gear of the transmitting gear member is engaged with a pinion gear of the fine tuning screw so as to permit a memory fine tuning for one of the tuning coil units selected by the main channel selecting shaft.
摘要翻译：本微调装置包括一个微调轴，该微调轴同轴地安装在支撑在底架上的主通道选择轴上。板弹簧构件设置在底盘上以推动偏置微调轴。齿轮构件被布置成用于将微调运动从微调轴传递到微调螺杆。微调轴设置有径向延伸的凸缘和外围齿轮，并且传动齿轮构件设置有可与微调轴的周边齿轮啮合的第一齿轮和可与微调螺钉啮合的第二齿轮。板簧构件支撑旋转的传递齿轮构件，由此可以通过板簧构件的变形来改变或移动轴向的运动方向。在这种布置中，当微调轴被推动以改变板簧构件的形状时，传动齿轮构件的第一齿轮与微调轴的圆周齿轮牢固地接合。同时，传动齿轮部件的第二齿轮与微调螺丝的小齿轮啮合，从而允许由主通道选择轴选择的一个调谐线圈单元进行存储器微调。

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