公开(公告)号：US20050162568A1

公开(公告)日：2005-07-28

申请号：US11041156

申请日：2005-01-21

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H03J5/24 ,  H04N5/44 ,  H04N5/50

CPC分类号： H03J5/244

摘要： The present invention provides to provide a television tuner capable of improving image disturbance when receiving a UHF band television signal. The television tuner comprises a tuning circuit having a tuning circuit having two varactor diodes connected in series with a connection point between the two varactor diodes serving as an output terminal and a coupling inductive element having its one end connected to an input terminal of the tuning circuit and the other end connected to an input terminal of an television signal. One varactor diode is connected to the input terminal of the tuning circuit, the other varactor diode is interposed between the output terminal and a ground, and a first capacitive element is connected between the other end of the inductive element and the connection point between the two varactor diodes.

摘要翻译： 本发明提供一种当接收UHF频带电视信号时能够改善图像干扰的电视调谐器。 电视调谐器包括具有调谐电路的调谐电路，该调谐电路具有与用作输出端子的两个变容二极管之间的连接点串联的两个变容二极管和耦合电感元件，其一端连接到调谐电路的输入端 另一端连接到电视信号的输入端。 一个变容二极管连接到调谐电路的输入端子，另一个变容二极管插在输出端子和地之间，第一电容元件连接在电感元件的另一端和两者之间的连接点 变容二极管

公开(公告)号：US06903783B2

公开(公告)日：2005-06-07

申请号：US09996294

申请日：2001-11-28

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H03J5/24 ,  H04B1/18 ,  H04N5/44 ,  H04N5/50

CPC分类号： H03J5/244

摘要： In a television tuner, a predetermined bias voltage is applied to the anode of a first switching diode. A power supply voltage is applied to the collector of a switching transistor via a power supply resistor, and the emitter of the switching transistor is grounded. The collector of the switching transistor is connected to an input terminal of a first FET via a first resistor. The first switching diode and the switching transistor are both switched on or off correspondingly to whether a television signal in the UHF band is to be received or a television signal in the VHF band is to be received.

摘要翻译： 在电视调谐器中，将预定的偏置电压施加到第一开关二极管的阳极。 电源电压通过电源电阻施加到开关晶体管的集电极，并且开关晶体管的发射极接地。 开关晶体管的集电极经由第一电阻器连接到第一FET的输入端子。 第一开关二极管和开关晶体管都相应于要接收UHF频带中的电视信号还是要接收VHF频带中的电视信号而被接通或断开。

公开(公告)号：US06898011B2

公开(公告)日：2005-05-24

申请号：US10297965

申请日：2002-02-26

申请人： Noriaki Kandaka ,  Masaki Yamamoto

发明人： Noriaki Kandaka ,  Masaki Yamamoto

IPC分类号： G02B5/08 ,  G02B5/26 ,  G02B5/28 ,  G03F1/22 ,  G03F1/24 ,  G21K1/06 ,  H01L21/027 ,  G02B1/00 ,  G03F9/00 ,  G21K5/00

CPC分类号： G02B5/0891 ,  B82Y10/00 ,  G21K1/062 ,  G21K2201/067

摘要： Methods are disclosed for manufacturing multi-layer film reflection mirrors, in which a desirable shape accuracy of a reflected wavefront can be obtained after locally scraping the multi-layer film. In an exemplary method, a multi-layer film (comprising respective alternating layers of at least two types of substances having different respective refractive indices) is superposedly formed on the surface of a mirror substrate. The multi-layer film has a constant period length, and the multi-layer film on the substrate is locally scraped to correct a phase of a reflected wavefront from the reflective surface of the mirror. The multi-layer film has an internal stress of 50 MPa or smaller. Alternatively or in addition, a compensating adjustment in a film formed on a reverse surface of the substrate can be made to cancel the stress perturbation caused by scraping of the multi-layer film on the obverse surface of the substrate.

摘要翻译： 公开了用于制造多层膜反射镜的方法，其中在局部刮擦多层膜之后可以获得反射波前的期望形状精度。 在一个示例性方法中，多层膜（包括具有不同折射率的至少两种类型的物质的交替层）叠加形成在反射镜基板的表面上。 多层膜具有恒定的周期长度，并且局部刮擦基板上的多层膜，以从反射镜的反射表面校正反射波前的相位。 多层膜的内应力为50MPa以下。 或者或另外，可以使形成在基板的反面上的膜中的补偿调整消除由于多层膜在基板的正面上的刮擦而引起的应力扰动。

公开(公告)号：US20050073612A1

公开(公告)日：2005-04-07

申请号：US10932972

申请日：2004-09-02

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： G01B21/00 ,  B65G43/00 ,  B65G43/08 ,  H05K9/00 ,  H03J5/00

CPC分类号： H05K9/006

摘要： A metal frame body has first to fourth side plates and is divided, by a shield plate provided in the metal frame body, into a first compartment area near the first side plate and a second compartment area near the second side plate. A distributor is arranged in the first compartment area and a tuner unit is arranged in the second compartment area. A first connector is arranged in a position on the third side plate adjacent to the first compartment area and a second connector, which is connected to the distributor, is arranged in a position on the fourth side plate adjacent to the first compartment area. The distance from the second side plate to the central axis of the first connector is equal to the distance from the second side plate to the central axis of the second connector.

摘要翻译： 金属框架体具有第一至第四侧板，并且通过设置在金属框架体中的屏蔽板分割成靠近第一侧板的第一隔室区域和靠近第二侧板的第二隔室区域。 分配器布置在第一隔间区域中，调谐器单元布置在第二隔间区域中。 第一连接器布置在与第一隔间区域相邻的第三侧板上的位置，并且连接到分配器的第二连接器布置在与第一隔间区域相邻的第四侧板上的位置。 从第二侧板到第一连接器的中心轴线的距离等于从第二侧板到第二连接器的中心轴线的距离。

公开(公告)号：US06876401B2

公开(公告)日：2005-04-05

申请号：US10153748

申请日：2002-05-22

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H03J5/24 ,  H04B1/10 ,  H04B1/26 ,  H04N5/44 ,  H04N5/46 ,  H04N5/50

CPC分类号： H03J5/244 ,  H04N5/46 ,  H04N21/4263 ,  H04N21/8106

摘要： A trap circuit system includes a first trap portion and a second trap portion. In the first trap portion, a first capacitor is provided in parallel to a first switch diode. A control voltage is applied to the cathode of the first switch diode so as to change the trap frequency. In the second trap portion, a control voltage is applied to the cathode of a varactor diode so as to change the trap frequency. In the trap circuit system, when a television signal is received, the video intermediate frequency signal and the audio intermediate frequency signal in the lower adjacent channel are attenuated. When an FM broadcast signal is received, the video intermediate frequency signal and the chrominance subcarrier frequency signal are attenuated.

摘要翻译： 陷阱电路系统包括第一捕获部分和第二捕获部分。 在第一陷波部分中，与第一开关二极管并联地提供第一电容器。 控制电压施加到第一开关二极管的阴极，以便改变陷波频率。 在第二陷波部分中，向变容二极管的阴极施加控制电压，以改变陷波频率。 在陷波电路系统中，当接收到电视信号时，下相邻信道中的视频中频信号和音频中频信号被衰减。 当接收到FM广播信号时，视频中频信号和色度副载波频率信号被衰减。

公开(公告)号：US20050057697A1

公开(公告)日：2005-03-17

申请号：US10924231

申请日：2004-08-23

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H04B1/10 ,  H04N5/50

CPC分类号： H04B1/1036

摘要： A television tuner contains a mixer 4 for converting a television signal into an intermediate frequency signal and outputting it, an intermediate frequency tuning circuit 5 for tuning the intermediate frequency signal, an intermediate frequency amplifier 7 provided in an integrated circuit 10 and connected to the intermediate frequency tuning circuit 5, and option circuits 2 and 3 provided at the side of the front stage of the mixer 4 for being switched into the operational state or non-operational state at a specific receiving band or channel. The integrated circuit 10 is provided with input terminals 10a and 10b for inputting the intermediate frequency signal output from the intermediate frequency tuning circuit 5 to the intermediate frequency amplifier 7 and a switch control circuit 9 for switching the operation of the option circuits 2 and 3, where the switch voltage output from the switch control circuit 9 is supplied to the option circuits 2 and 3 through the input terminals 10a and 10b.

摘要翻译： 电视调谐器包括用于将电视信号转换为中频信号并输出​​的混频器4，用于调谐中频信号的中频调谐电路5，设置在集成电路10中并连接到中间频率信号的中频放大器7 频率调谐电路5，以及设置在混频器4的前级侧的选择电路2和3，用于在特定的接收频带或频道处切换到操作状态或非操作状态。 集成电路10设置有用于将从中频调谐电路5输出的中频信号输入到中频放大器7的输入端子10a和10b，以及用于切换选择电路2和3的操作的开关控制电路9， 其中从开关控制电路9输出的开关电压通过输入端子10a和10b提供给选择电路2和3。

公开(公告)号：US20050007937A1

公开(公告)日：2005-01-13

申请号：US10862187

申请日：2004-06-04

申请人： Go Mori ,  Masaki Yamamoto ,  Hideharu Tajima ,  Nobuyuki Takamori

发明人： Go Mori ,  Masaki Yamamoto ,  Hideharu Tajima ,  Nobuyuki Takamori

IPC分类号： G11B7/24 ,  G11B7/243 ,  G11B7/257

CPC分类号： B82Y10/00 ,  G11B7/24 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/257 ,  Y10S430/146

摘要： An optical information recording medium of the present invention includes a thin film section made up of one or more thin film, the thin film section being provided on a substrate. Thin films of the thin film section include a single optical multiple interference film which incites optical multiple interference in a thin film section, the optical multiple interference being incited by the change of complex refractive index in accordance with the intensity of incident light. Also, the composition and thickness of the optical multiple interference film are arranged in such a manner as to cause the wavelength distribution of the reflectance of the thin film section at room temperatures to have a minimum value within wavelengths of ±80 nm of the incident light for reproduction. With this, the design freedom of the optical multiple interference film which realizes super-resolution reproduction with a reduced effective reproduction spot is significantly increased.

摘要翻译： 本发明的光学信息记录介质包括由一个或多个薄膜构成的薄膜部分，薄膜部分设置在基板上。 薄膜部分的薄膜包括在薄膜部分中引起光学多重干涉的单个光学多重干涉膜，根据入射光的强度，复数折射率的变化引起光学多重干涉。 此外，光学多重干涉膜的组成和厚度被布置成使得室温下的薄膜部分的反射率的波长分布在入射光的±80nm的波长内具有最小值 用于繁殖。 由此，实现具有降低的有效再现点的超分辨率再现的光学多重干涉膜的设计自由度显着增加。

公开(公告)号：US06791626B2

公开(公告)日：2004-09-14

申请号：US09938132

申请日：2001-08-23

申请人： Masaki Yamamoto ,  Toshiro Furuta

发明人： Masaki Yamamoto ,  Toshiro Furuta

IPC分类号： H04N546

CPC分类号： H04N5/4446 ,  H04B1/005 ,  H04B1/006 ,  H04B1/109 ,  H04B1/28 ,  H04N5/21 ,  H04N5/60

摘要： An input switching circuit for a television tuner includes first and second switching circuits provided between first and second input terminals to which a television signal and an FM broadcasting signal are input and an output terminal. The second switching circuit passes the FM broadcasting signal when receiving the FM broadcasting signal while blocking the FM broadcasting signal when receiving the television signal between the second input terminal and the output terminal. The second switching circuit includes first two diodes connected in series with each other between the second input terminal and the output terminal, which are turned off when receiving the television signal and turned on when receiving the FM broadcasting signal; and a second diode connected between the node between the first two diodes and the ground, which is turned on when receiving the television signal and turned off when receiving the FM broadcasting signal.

摘要翻译： 一种用于电视调谐器的输入切换电路包括设置在输入电视信号和FM广播信号的第一和第二输入端之间的第一和第二切换电路和输出端。 当在第二输入端子和输出端子之间接收电视信号时，第二开关电路在接收FM广播信号时通过FM广播信号，同时阻止FM广播信号。 第二开关电路包括在第二输入端子和输出端子之间串联连接的前两个二极管，当接收到电视信号时，它们被接通并在接收到FM广播信号时导通; 以及连接在前两个二极管和接地之间的节点之间的第二二极管，当接收到电视信号时接通电源并在接收到FM广播信号时被关闭。

公开(公告)号：US06639630B2

公开(公告)日：2003-10-28

申请号：US09494960

申请日：2000-02-01

申请人： Shigeru Osada ,  Masaki Yamamoto ,  Yoshihiro Sato

发明人： Shigeru Osada ,  Masaki Yamamoto ,  Yoshihiro Sato

IPC分类号： H04N544

CPC分类号： H04N5/44 ,  H03J5/244

摘要： A switch circuit is provided for at least one of a previous stage of a VHF-band frequency converter and a previous stage of a UHF-band frequency converter. Each switch circuit passes a signal when a frequency converter at a subsequent stage of the switch circuit is operating, and does not pass a signal when the frequency converter at the subsequent stage of the switch circuit is not operating.

摘要翻译： 为VHF频带变频器的前一级和UHF频带变频器的前一级中的至少一个提供开关电路。 当开关电路的后续阶段的变频器工作时，每个开关电路通过信号，并且在开关电路的后续阶段的变频器不工作时不通过信号。

公开(公告)号：US06566953B2

公开(公告)日：2003-05-20

申请号：US10011174

申请日：2001-12-05

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H03F316

CPC分类号： H03F3/193 ,  H03F1/3205 ,  H03F3/189

摘要： A high-frequency amplifier circuit for a UHF television tuner includes an FET having a first gate for inputting a UHF band television signal and a second gate for applying an AGC voltage which varies the gain. The second gate is grounded via a series circuit including a resistor and a DC-cutting capacitor. The impedance of the DC-cutting capacitor is sufficiently lower than the resistance of the resistor in the UHF band.