公开(公告)号：US07650124B2

公开(公告)日：2010-01-19

申请号：US11479286

申请日：2006-06-30

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H04B1/18

CPC分类号： H03D7/1433 ,  H03D7/1408 ,  H03D7/1425 ,  H03D7/1458 ,  H03D2200/0023

摘要： A television tuner includes an unbalanced output type VHF-side block, a balanced output type UHF-side block, and a mixing circuit that performs frequency conversion on the output from the VHF-side block or the UHF-side block. In the television tuner, in a first mode where the VHF-side block is connected to the mixing circuit, a first terminal, to which the unbalanced output is applied, is coupled to a first input terminal of the mixing circuit, and a second input terminal of the mixing circuit is grounded. Further, in a second mode where the UHF-side block is connected to the mixing circuit, a second terminal and a third terminal, to which the balanced output is applied, are coupled to the first and second input terminals of the mixing circuit.

摘要翻译： 电视调谐器包括不平衡输出型VHF侧块，平衡输出型UHF侧块和对VHF侧块或UHF侧块的输出执行频率转换的混合电路。 在电视调谐器中，在VHF侧块连接到混合电路的第一模式中，施加了不平衡输出的第一端耦合到混合电路的第一输入端，第二输入 混合电路的端子接地。 此外，在UHF侧块连接到混合电路的第二模式中，施加平衡输出的第二端子和第三端子耦合到混合电路的第一和第二输入端子。

公开(公告)号：US07609134B2

公开(公告)日：2009-10-27

申请号：US11940972

申请日：2007-11-15

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H03J3/06

CPC分类号： H03J3/185 ,  H03J3/06 ,  H03J3/26

摘要： The invention provides a variable tuning circuit capable of extending a variable range in a high frequency band, ensuring the value of L of an inductor to increase the value of Q of a circuit in a low frequency band, and preventing a reduction in gain, an increase in noise, and unstable oscillation.A variable tuning circuit includes: a first parallel resonance circuit that includes a varactor diode, a capacitor connected in series to the varactor diode, and a first inductor connected in parallel to the varactor diode and the capacitor; and a second parallel resonance circuit that includes a second inductor connected in parallel to the varactor diode with a direct current cut-off capacitor interposed therebetween. When the varactor diode has a maximum capacitance, a resonant frequency of the second parallel resonance circuit is set about a lowest frequency in a variable frequency range.

摘要翻译： 本发明提供一种能够在高频带内扩展可变范围的可变调谐电路，确保电感器L的值增加低频带中的电路的Q值，并防止增益的减小， 噪音增加，振荡不稳定。 可变调谐电路包括：第一并联谐振电路，包括变容二极管，与变容二极管串联连接的电容器和与变容二极管和电容器并联连接的第一电感器; 以及第二并联谐振电路，其包括与变容二极管并联连接的第二电感器，其间插入有直流截止电容器。 当变容二极管具有最大电容时，第二并联谐振电路的谐振频率设定在可变频率范围内的最低频率。

公开(公告)号：US20090201429A1

公开(公告)日：2009-08-13

申请号：US12358176

申请日：2009-01-22

申请人： Masaki YAMAMOTO

发明人： Masaki YAMAMOTO

IPC分类号： H04N5/50

CPC分类号： H03J5/244

摘要： In the television tuner, between an input part of a VHF tuning circuit 2 and the ground, inductor grounded circuits that ground via inductors are formed. Further, to the inductor grounded circuit, a switch diode D2 that operates in synchronization with a VHF high band reception operation and a switch diode D1 that turns on/off at a reception of a certain channel are disposed in parallel. By the on/off operation of the switch diodes D1 and D2, at a reception of UHF/VHF high band, a HPF for suppressing a signal in a low band side to a reception frequency is formed, and at a reception of VHF low band, a LPF that suppresses a signal in a high band side to a reception frequency is formed.

摘要翻译： 在电视调谐器中，在VHF调谐电路2的输入部与地之间，形成通过电感器接地的电感器接地电路。 此外，对于电感器接地电路，与VHF高频带接收动作同步工作的开关二极管D2和在某个通道的接收时导通/截止的开关二极管D1并联设置。 通过开关二极管D1和D2的接通/断开操作，在UHF / VHF高频带的接收时，形成用于将低频带侧的信号抑制到接收频率的HPF，并且在接收VHF低频带 形成了将高频侧的信号抑制为接收频率的LPF。

公开(公告)号：US20090096132A1

公开(公告)日：2009-04-16

申请号：US12246839

申请日：2008-10-07

申请人： Masaki YAMAMOTO

发明人： Masaki YAMAMOTO

IPC分类号： B28B5/00 ,  H02G3/08 ,  H01R13/502

CPC分类号： H05K7/026

摘要： A container box includes an outer box for receiving an inner box therein. Ribs are formed on an inner surface of the outer box, and extend in a fitting direction, and are gradually changing in height so that molds can be easily removed after the molding. The ribs includes the normally-inclined ribs gradually increasing in height in the fitting direction of the inner box, and the reversely-inclined ribs gradually decreasing in height in the fitting direction of the inner box.

摘要翻译： 容器箱包括用于在其中容纳内箱的外箱。 肋形成在外箱的内表面上，并且在装配方向上延伸，并且在高度上逐渐变化，使得在模制之后可以容易地移除模具。 这些肋包括在内箱的嵌合方向上高度逐渐增加的常规倾斜肋，并且在内箱的装配方向上的相反倾斜肋的高度逐渐降低。

公开(公告)号：US07415258B2

公开(公告)日：2008-08-19

申请号：US11152654

申请日：2005-06-14

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H04B1/18

CPC分类号： H04N5/50 ,  H04N21/426

摘要： A television tuner includes: low band and high-band receiving units; a mixer that frequency-converts low-band television signals from the low-band receiving unit or high-band television signals from the high-band receiving unit; first and second switching diodes that couple the low-band or high-band receiving unit and the mixer to each other, respectively; and a transistor which applies a bias voltage to one end of each of the switching diodes. The emitter of the transistor is grounded and the collector is pulled up to a power supply through a resistor. ON/OFF of the switching diodes are switched to be opposite to each other. The other end of each of the switching diodes is connected to the collector through a first inductance element. The collector of the transistor is connected to one end of a second inductance element, and the other end of the second inductance element is grounded in a high-frequency manner.

摘要翻译： 电视调谐器包括：低频和高频接收单元; 对来自低频带接收单元的低频电视信号或来自高频带接收单元的高频电视信号进行频率转换的混频器; 分别将低频带或高频带接收单元和混频器相互耦合的第一和第二开关二极管; 以及向每个开关二极管的一端施加偏置电压的晶体管。 晶体管的发射极接地，集电极通过电阻上拉到电源。 开关二极管的ON / OFF被切换为彼此相反。 每个开关二极管的另一端通过第一电感元件连接到集电极。 晶体管的集电极连接到第二电感元件的一端，第二电感元件的另一端以高频方式接地。

公开(公告)号：US07414321B2

公开(公告)日：2008-08-19

申请号：US11707338

申请日：2007-02-15

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H01L29/40

CPC分类号： H01L23/66 ,  H01L23/49838 ,  H01L23/50 ,  H01L2224/05571 ,  H01L2224/05573 ,  H01L2224/16 ,  H01L2924/00014 ,  H05K1/0206 ,  H05K1/0243 ,  H05K2201/10689 ,  H05K2201/10969 ,  H01L2224/05599

摘要： In a wiring configuration for a semiconductor component, an unused terminal is insulated from a third land via an insulating film, and thus no connecting member (solder) is required for the unused terminal. With this, the third land is not accidentally removed from a circuit board during exchange of the semiconductor component, and the number of defective circuit boards can be reduced. Moreover, the third land for the unused terminal is included in a wiring pattern due to the connection thereof to other lands or other traces for signals and for grounding with a connecting trace. Thus, the widths of lines can be increased, and furthermore, the insusceptibility of transmission lines in high-frequency circuits to noise can be increased.

摘要翻译： 在半导体部件的配线结构中，未使用的端子经由绝缘膜与第三焊盘绝缘，因此未使用的端子不需要连接部件（焊料）。 由此，在半导体部件更换期间，第三焊盘没有意外地从电路板移除，并且可以减少不良电路板的数量。 此外，由于与其它焊盘的连接或其他用于信号的迹线的连接以及用于连接迹线的接地，所以用于未使用的端子的第三焊盘包括在布线图案中。 因此，可以增加线路的宽度，此外，可以增加高频电路中的传输线路对噪声的不敏感性。

公开(公告)号：US20080129428A1

公开(公告)日：2008-06-05

申请号：US11940972

申请日：2007-11-15

申请人： Masaki YAMAMOTO

发明人： Masaki YAMAMOTO

IPC分类号： H03J3/06

CPC分类号： H03J3/185 ,  H03J3/06 ,  H03J3/26

摘要： The invention provides a variable tuning circuit capable of extending a variable range in a high frequency band, ensuring the value of L of an inductor to increase the value of Q of a circuit in a low frequency band, and preventing a reduction in gain, an increase in noise, and unstable oscillation.A variable tuning circuit includes: a first parallel resonance circuit that includes a varactor diode, a capacitor connected in series to the varactor diode, and a first inductor connected in parallel to the varactor diode and the capacitor; and a second parallel resonance circuit that includes a second inductor connected in parallel to the varactor diode with a direct current cut-off capacitor interposed therebetween. When the varactor diode has a maximum capacitance, a resonant frequency of the second parallel resonance circuit is set about a lowest frequency in a variable frequency range.

摘要翻译： 本发明提供一种能够在高频带内扩展可变范围的可变调谐电路，确保电感器L的值增加低频带中的电路的Q值，并防止增益的减小， 噪音增加，振荡不稳定。 可变调谐电路包括：第一并联谐振电路，包括变容二极管，与变容二极管串联连接的电容器和与变容二极管和电容器并联连接的第一电感器; 以及第二并联谐振电路，其包括与变容二极管并联连接的第二电感器，其间插入有直流截止电容器。 当变容二极管具有最大电容时，第二并联谐振电路的谐振频率设定在可变频率范围内的最低频率。

公开(公告)号：US07345556B2

公开(公告)日：2008-03-18

申请号：US11191465

申请日：2005-07-28

申请人： Masaaki Endo ,  Masaki Yamamoto

发明人： Masaaki Endo ,  Masaki Yamamoto

IPC分类号： H01P1/22

CPC分类号： H03H7/255

摘要： A variable attenuation circuit includes an attenuation circuit which has a first semiconductor variable impedance element, and an attenuation control circuit of which the impedance is changed by a control voltage to be applied from the outside and which has a second semiconductor variable impedance element for controlling the impedance of the first semiconductor variable impedance element. The attenuation circuit and the attenuation control circuit are connected in cascade. Therefore, signals can be attenuated by the attenuation control circuit, in addition to the attenuation circuit.

摘要翻译： 可变衰减电路包括具有第一半导体可变阻抗元件的衰减电路和由外部施加的控制电压来改变阻抗的衰减控制电路，并且具有用于控制该第二半导体可变阻抗元件的第二半导体可变阻抗元件 第一半导体可变阻抗元件的阻抗。 衰减电路和衰减控制电路级联连接。 因此除了衰减电路之外，衰减控制电路也可以衰减信号。

公开(公告)号：US20070215382A1

公开(公告)日：2007-09-20

申请号：US11714394

申请日：2007-03-05

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H05K1/11 ,  H01R12/04

CPC分类号： H05K3/3405 ,  H05K3/4015 ,  H05K9/0039 ,  H05K2201/10242 ,  H05K2201/10371 ,  H05K2201/2018

摘要： A coupling structure between a circuit board and a frame member according to the present invention includes: the frame member made of a metal material; and the circuit board set in the frame member and having a land portion soldered to the frame member, in which a solder reinforcing member that is put on the land portion and is solderable is provided at a corner formed by the frame member and the circuit board, and the frame member, the land portion, and the solder reinforcing member are soldered at the corner.

摘要翻译： 根据本发明的电路板和框架构件之间的联接结构包括：由金属材料制成的框架构件; 并且电路板设置在框架构件中，并且具有焊接到框架构件的焊盘部分，其中放置在焊盘部分上并且可焊接的焊料加强构件设置在由框架构件和电路板形成的拐角处 并且框架部件，焊盘部分和焊料加强部件在角部焊接。

公开(公告)号：US07265796B2

公开(公告)日：2007-09-04

申请号：US10924229

申请日：2004-08-23

申请人： Masaki Yamamoto

发明人： Masaki Yamamoto

IPC分类号： H04N5/63 ,  H04N5/50

CPC分类号： H04N5/63

摘要： A television tuner comprises a connector 2 to which a television signal is input, a high frequency circuit 5 for frequency-converting the television signal into an intermediate frequency signal and outputting the intermediate frequency signal, and a power supply terminal 10 for supplying a power supply voltage to the high frequency circuit. And a power switch circuit 12 for supplying the power supply voltage to the connector is provided between the connector and the power supply terminal. Accordingly, by turning on/off the power switch circuit, the power supply voltage is supplied to the external circuit connected to the connector, and, when the power supply is stopped, the semiconductor device can be prevented from being damaged due to application of the over-voltage from the exterior to the connector.

摘要翻译： 电视调谐器包括输入电视信号的连接器2，用于将电视信号频率转换成中频信号并输出​​中频信号的高频电路5以及用于提供电源的电源端子10 电压到高频电路。 并且在连接器和电源端子之间设置有用于将电源电压提供给连接器的电源开关电路12。 因此，通过接通/断开电源开关电路，电源电压被提供给连接到连接器的外部电路，并且当电源停止时，可以防止半导体器件因应用 从外部到连接器的过电压。