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21. 发明授权

US4521744A Tuning apparatus of phase-locked loop type 失效
标题翻译：锁相环调谐装置
公开(公告)号：US4521744A
公开(公告)日：1985-06-04
申请号：US450793
申请日：1982-12-17
申请人： Takaaki Yamada , Yukio Tsuda , Akira Yamakoshi
发明人： Takaaki Yamada , Yukio Tsuda , Akira Yamakoshi
IPC分类号： H03J5/02 , H04B1/26 , H03L7/08
CPC分类号： H03J5/0281
摘要： A tuning apparatus of phase-locked loop type having a voltage controlled oscillator which is working as a local oscillator of a tuning circuit, a programmable divider supplied with the output signal from the voltage controlled oscillator, a reference frequency signal generating circuit, a phase comparator supplied with the output signal from the voltage controlled oscillator and the output signal from the reference frequency signal generating circuit, and supplying the output signal to the voltage controlled oscillator, the programmable divider, the reference frequency signal generating circuit and the phase comparator being formed in a single integrated circuit, and a control circuit formed separately from the integrated circuit for supplying a control data to the programmable divider in the single integrated circuit is disclosed, in which the integrated circuit further comprises a memory for memorizing the control data which is serially supplied from the control circuit and supplying the control data to the programmable divider in parallel.
摘要翻译：一种锁相环型调谐装置，具有作为调谐电路的本地振荡器工作的压控振荡器，由压控振荡器输出的可编程分频器，参考频率信号发生电路，相位比较器提供来自压控振荡器的输出信号和来自参考频率信号发生电路的输出信号，并将输出信号提供给压控振荡器，可编程分频器，参考频率信号发生电路和相位比较器形成在公开了一种集成电路，以及与用于将控制数据提供给单个集成电路中的可编程分频器的集成电路分开形成的控制电路，其中集成电路还包括用于存储串行提供的控制数据的存储器从控制电路供电控制数据并行到可编程分压器。

22. 发明授权

US4041399A Semiconductor varactor device and electronic tuner using same 失效
标题翻译：半导体变容二极管装置和电子调谐器使用相同
公开(公告)号：US4041399A
公开(公告)日：1977-08-09
申请号：US686782
申请日：1976-05-17
申请人： Yukio Tsuda
发明人： Yukio Tsuda
IPC分类号： H03J3/18 , H01L21/60 , H01L25/03 , H01L27/00 , H01L29/93 , H04B1/08
CPC分类号： H01L25/03 , H01L24/81 , H01L27/00 , H01L2224/05572 , H01L2224/05573 , H01L2224/05624 , H01L2224/05655 , H01L2224/05666 , H01L2224/16 , H01L2224/16225 , H01L2224/16227 , H01L2224/16235 , H01L2224/81801 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01014 , H01L2924/01019 , H01L2924/01023 , H01L2924/01033 , H01L2924/01051 , H01L2924/01057 , H01L2924/01063 , H01L2924/01077 , H01L2924/01082 , H01L2924/014 , H01L2924/12036 , H01L2924/19041 , H01L2924/30105 , H01L2924/30107 , H01L2924/3025
摘要： A varactor device comprised of plural varactor elements disposed in a semiconductor body, each varactor element includes first and second semiconductor regions defining a PN junction therebetween. Any two of the varactor elements in the semiconductor body are separated from each other by semiconductor material of one conductivity type. Electrodes are provided on the semiconductor material of one conductivity type and on the plural varactor elements. Individual conductors are provided on the respective electrodes. In accordance with this construction, the electrodes on the semiconductor material are adapted to be supplied with a predetermined potential to substantially shield the varactor elements and minimize stray capacitance therebetween.In one preferred application of the varactor device, it is used with a tuner, such as a UHF tuner, such that the variable capacitance of the varactor device changes the frequency to which the tuner is tuned. The tuner includes electrical shielding members which are mechanically coupled to, and in electrical contact with the semiconductor body of the varactor device. An electrical conductor connects at least one of the varactor electrodes to a respective signal processing stage in the tuner.
摘要翻译：一种变容二极管装置，包括设置在半导体本体中的多个变容二极管元件，每个变容二极管元件包括限定其间的PN结的第一和第二半导体区域。半导体主体中的两个变容二极管元件通过一种导电类型的半导体材料彼此分离。电极设置在一种导电类型的半导体材料和多个变容二极管元件上。在各个电极上提供单独的导体。根据这种结构，半导体材料上的电极适于被提供预定电位，以基本上屏蔽变容二极管元件并最小化杂散电容。

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