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1. 发明申请

US20070052865A1 Tuning circuit for preventing a deterioration of Q value 失效
标题翻译：用于防止Q值劣化的调谐电路
公开(公告)号：US20070052865A1
公开(公告)日：2007-03-08
申请号：US11481703
申请日：2006-07-05
申请人： Takeo Suzuki , Shigeru Osada
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： H03B5/08 , H04N5/50
CPC分类号： H03J5/0218 , H03J3/08 , H03J3/26
摘要： A tuning circuit comprises, at least, a first circuit K1 which serially connects a first variable capacitor element 21a and a second variable capacitor element 31a, an inductance element 23a which is parallely connected to the first circuit K1 and constitutes a resonance circuit with the first circuit K1; a second circuit K2 which includes a switch element 26a and a third resistor 27a serially connected to each other and is parallely connected to the first circuit K1; and a first resistor 24a and a second resistor and 25a which are connected to both ends of the first variable capacitor element 21a, respectively and apply a predetermined tuning voltage.
摘要翻译：调谐电路至少包括将第一可变电容器元件21a和第二可变电容器元件31a串联连接的第一电路K 1，与第一电路K 1并联连接的电感元件23a，谐振电路与第一电路K 1; 第二电路K 2，其包括彼此串联连接并并联连接到第一电路K 1的开关元件26a和第三电阻器27a; 以及分别连接到第一可变电容器元件21a的两端的第一电阻器24a和第二电阻器25a，并施加预定的调谐电压。

2. 发明授权

US06842198B2 TV signal receiving tuner capable of outputting oscillation signal having wide frequency band by means of single local oscillator 失效
标题翻译： TV信号接收调谐器能够通过单个本地振荡器输出具有宽频带的振荡信号
公开(公告)号：US06842198B2
公开(公告)日：2005-01-11
申请号：US09972162
申请日：2001-10-05
申请人： Takeo Suzuki , Shigeru Osada
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： H03D7/16 , H03J1/00 , H03J3/32 , H03J5/24 , H03L7/099 , H04B1/26 , H04N5/44 , H04N5/50
CPC分类号： H03J5/244 , H03J1/0041 , H03J3/32 , H03J5/24 , H03L7/0805 , H03L7/099
摘要： A TV signal receiving tuner which is small in size and inexpensive due to a reduced number of local oscillators. In the TV signal receiving tuner, a local oscillation signal output from a local oscillator is directly applied to a first mixer through a first programmable divider to receive a UHF TV signal, the local oscillation signal output from the local oscillator is applied to the first mixer after its frequency is divided to 1/3 by the first programmable divider to receive a VHF high-band TV signal, and the local oscillation signal output from the local oscillator is applied to the first mixer after its frequency is divided to 1/5 by the first programmable divider to receive a VHF low-band TV signal.
摘要翻译：一种电视信号接收调谐器，其尺寸小并且由于本地振荡器的数量减少而便宜。在TV信号接收调谐器中，从本地振荡器输出的本地振荡信号通过第一可编程分频器直接施加到第一混频器，以接收UHF TV信号，将从本地振荡器输出的本地振荡信号施加到第一混频器在其频率被第一可编程分频器分频为1/3以接收VHF高频电视信号之后，从本地振荡器输出的本地振荡信号在其频率被分频为1/5之后被施加到第一混频器第一个可编程分频器接收VHF低频电视信号。

3. 发明授权

US06707681B2 Surface mount typed electronic circuit of small size capable of obtaining a high-Q 失效
标题翻译：表面贴装小型电子电路，可获得高Q值
公开(公告)号：US06707681B2
公开(公告)日：2004-03-16
申请号：US10346324
申请日：2003-01-17
申请人： Takeo Suzuki , Shigeru Osada
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： H05K706
CPC分类号： H01L23/66 , H01F27/292 , H01F27/40 , H01L25/0657 , H01L2224/16 , H01L2225/06513 , H01L2225/06517 , H01L2225/06541 , H01L2225/06565 , H01L2924/15192 , H01L2924/15313
摘要： In the surface mount typed electronic circuit of the invention, an insulating substrate has an inductance element formed in a conductive pattern whose end portions are connected to the second lands. A bare chip is superimposed on the insulating substrate, so as to respectively connect the first electrodes and the second electrodes to the first lands and the second lands. Therefore, since the inductance element is positioned below the bare chip, the length of the connecting conductor between the inductance element and the semiconductor circuit can be extremely shortened, and a high-Q electronic circuit, especially in high-frequency, can be provided.
摘要翻译：在本发明的表面贴装型电子电路中，绝缘基板具有以导电图案形成的电感元件，其端部连接到第二焊盘。裸芯片叠加在绝缘基板上，以将第一电极和第二电极分别连接到第一焊盘和第二焊盘。因此，由于电感元件位于裸芯片的下方，电感元件和半导体电路之间的连接导体的长度可以极大地缩短，并且可以提供特别是高频的高Q电子电路。

4. 发明授权

US07436276B2 Tuning circuit preventing a deterioration of Q value 失效
标题翻译：调谐电路防止Q值的劣化
公开(公告)号：US07436276B2
公开(公告)日：2008-10-14
申请号：US11481703
申请日：2006-07-05
申请人： Takeo Suzuki , Shigeru Osada
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： H03J3/20
CPC分类号： H03J5/0218 , H03J3/08 , H03J3/26
摘要： A tuning circuit comprises, at least, a first circuit K1 which serially connects a first variable capacitor element 21a and a second variable capacitor element 31a, an inductance element 23a which is parallely connected to the first circuit K1 and constitutes a resonance circuit with the first circuit K1; a second circuit K2 which includes a switch element 26a and a third resistor 27a serially connected to each other and is parallely connected to the first circuit K1; and a first resistor 24a and a second resistor and 25a which are connected to both ends of the first variable capacitor element 21a, respectively and apply a predetermined tuning voltage.
摘要翻译：调谐电路至少包括将第一可变电容器元件21a和第二可变电容器元件31a串联连接的第一电路K 1，与第一电路K 1并联连接的电感元件23a，谐振电路与第一电路K 1; 第二电路K 2，其包括彼此串联连接并并联连接到第一电路K 1的开关元件26a和第三电阻器27a; 以及分别连接到第一可变电容器元件21a的两端的第一电阻器24a和第二电阻器25a，并施加预定的调谐电压。

5. 发明授权

US07368974B2 Signal adder circuit capable of removing effects due to phase error or amplitude error of I and Q signals 失效
标题翻译：信号加法器电路能够消除由于I和Q信号的相位误差或振幅误差引起的影响
公开(公告)号：US07368974B2
公开(公告)日：2008-05-06
申请号：US11479742
申请日：2006-06-30
申请人： Takeo Suzuki , Shigeru Osada
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： G06F7/44
CPC分类号： H04L27/3863 , H03D3/009
摘要： A signal adder circuit includes: an adding unit that includes at least a pair of amplification elements in which a constant current flows between ground terminals and a ground, input signals having different phases are input to input terminals, and output terminals to which a power supply voltage is applied are connected to each other; a gain control unit that is provided between the ground and each of the ground terminals of the amplification elements so as to adjust the amplitudes of the input signals having different phases; and a phase control unit that is provided between the ground and each of the ground terminals of the amplification elements so as to adjust the phases of the input signals having different phases.
摘要翻译：信号加法电路包括：加法单元，其包括至少一对放大元件，其中恒定电流在接地端子和地之间流动，具有不同相位的输入信号被输入到输入端子，以及输出端子，电源施加电压彼此连接; 增益控制单元，设置在放大元件的接地端子和每个接地端子之间，以便调节具有不同相位的输入信号的幅度; 以及相位控制单元，设置在放大元件的接地端子和每个接地端子之间，以便调节具有不同相位的输入信号的相位。

6. 发明授权

US07209723B2 Direct conversion circuit having reduced bit errors 失效
标题翻译：直接转换电路具有减少的位错误
公开(公告)号：US07209723B2
公开(公告)日：2007-04-24
申请号：US10801370
申请日：2004-03-16
申请人： Takeo Suzuki , Shigeru Osada
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： H04B1/06
CPC分类号： H03D3/009 , H04B1/30
摘要： A direct conversion circuit includes first and second mixers to which a radio frequency signal is input. An oscillator supplies the first and second mixers with local oscillation signals whose phases are orthogonal to each other. A baseband processing circuit processes baseband signals output from the first and second mixers. A level-difference correcting circuit which corrects the two baseband signals input to the baseband processing circuit so that the levels of both are equal to each other is provided in a stage before the first and second mixers. The levels of the baseband signals are corrected by changing relative levels of the radio frequency signal input to the first mixer and the radio frequency signal input to the second mixer.
摘要翻译：直接转换电路包括输入射频信号的第一和第二混频器。振荡器为第一和第二混频器提供相位彼此正交的本地振荡信号。基带处理电路处理从第一和第二混频器输出的基带信号。在第一和第二混频器之前的阶段，提供校正输入到基带处理电路的两个基带信号使得两者的电平彼此相等的电平差校正电路。通过改变输入到第一混频器的射频信号的相对电平和输入到第二混频器的射频信号来校正基带信号的电平。

7. 发明申请

US20070046529A1 Signal adder circuit capable of removing effects due to phase error or amplitude error of I and Q signals 失效
标题翻译：信号加法器电路能够消除由于I和Q信号的相位误差或振幅误差引起的影响
公开(公告)号：US20070046529A1
公开(公告)日：2007-03-01
申请号：US11479742
申请日：2006-06-30
申请人： Takeo Suzuki , Shigeru Osada
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： G01S13/00
CPC分类号： H04L27/3863 , H03D3/009
摘要： A signal adder circuit includes: an adding unit that includes at least a pair of amplification elements in which a constant current flows between ground terminals and a ground, input signals having different phases are input to input terminals, and output terminals to which a power supply voltage is applied are connected to each other; a gain control unit that is provided between the ground and each of the ground terminals of the amplification elements so as to adjust the amplitudes of the input signals having different phases; and a phase control unit that is provided between the ground and each of the ground terminals of the amplification elements so as to adjust the phases of the input signals having different phases.
摘要翻译：信号加法电路包括：加法单元，其包括至少一对放大元件，其中恒定电流在接地端子和地之间流动，具有不同相位的输入信号被输入到输入端子，以及输出端子，电源施加电压彼此连接; 增益控制单元，设置在放大元件的接地端子和每个接地端子之间，以便调节具有不同相位的输入信号的幅度; 以及相位控制单元，设置在放大元件的接地端子和每个接地端子之间，以便调节具有不同相位的输入信号的相位。

8. 发明授权

US06639630B2 TV-signal receiving tuner with reduced extraneous emission 失效
标题翻译：电视信号接收调谐器，减少了外部发射
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。

9. 发明授权

US06559899B1 Digital blocks television tuner having simple baseband signal processing portion 失效
标题翻译：具有简单基带信号处理部分的数字电视调谐器
公开(公告)号：US06559899B1
公开(公告)日：2003-05-06
申请号：US09598966
申请日：2000-06-21
申请人： Takao Suzuki , Akira Takayama , Shigeru Osada
发明人： Takao Suzuki , Akira Takayama , Shigeru Osada
IPC分类号： H04N550
CPC分类号： H04N5/4446 , H03D3/008 , H04N5/4401 , H04N5/455 , H04N21/4263
摘要： A digital television tuner is realized in which the construction of a baseband signal processing portion is simple, it is difficult for a local oscillation signal to leak to the input end side, and in which image interference is suppressed. The digital television tuner includes a frequency conversion device for converting the frequency of a digital television signal of a channel to be received from among channels arranged in a predetermined frequency band into the highest frequency of the frequency band or higher; two mixing devices for outputting two baseband signals whose phases are mutually orthogonal to each other by demodulating the frequency-converted digital television signal; a local oscillation device for inputting local oscillation signals whose phases are mutually orthogonal to each other to the two mixing devices; and an addition device for adding together the two baseband signals, wherein the frequency of the local oscillation signals is set to be the same frequency as the frequency at the end of the band in the channel of the frequency-converted digital television signal, and one of the baseband signals is converted into the same phase as that of the other, after which the signals are input to the addition device.
摘要翻译：实现数字电视调谐器，其中基带信号处理部分的构造简单，本地振荡信号难以泄漏到输入端侧，并且抑制了图像干扰。数字电视调谐器包括：频率转换装置，用于将布置在预定频带中的频道中的要接收的频道的数字电视信号的频率转换为频带的最高频率; 两个混合装置，用于通过解调频率转换的数字电视信号来输出相位彼此相互正交的两个基带信号; 本地振荡装置，用于输入其相位彼此相互正交的本地振荡信号到两个混合装置; 以及用于将两个基带信号相加在一起的加法装置，其中本地振荡信号的频率被设置为与频率转换的数字电视信号的信道中的频带末端的频率相同的频率，一个的基带信号被转换成与另一个基带信号相同的相位，之后信号被输入到加法装置。

10. 发明授权

US06864776B2 Coupling adjusting structure for double-tuned circuit 有权
标题翻译：双调谐电路的耦合调整结构
公开(公告)号：US06864776B2
公开(公告)日：2005-03-08
申请号：US10670687
申请日：2003-09-25
申请人： Shigeru Osada
发明人： Shigeru Osada
IPC分类号： H04N5/50 , H01F5/00 , H01F17/00 , H05K1/16 , H05K3/22
CPC分类号： H05K1/165 , H01F5/003 , H01F17/0033 , H05K3/222 , H05K2201/093 , H05K2201/09336 , H05K2201/097 , H05K2201/10636 , H05K2203/171 , Y02P70/611
摘要： In a coupling adjusting structure for a double-tuned circuit according to the present invention, first and second coils are configured such that a pair of first conductive patterns formed on a first surface of a printed circuit and a corresponding pair of second conductive patterns formed on a second surface of the printed circuit board are connected via corresponding connecting conductors, thereby making the first and second coils low and thin. Also, one end of the first coil and the corresponding end of the second coil are disposed close to each other, a first ground conductive pattern is disposed at least on the first surface of the printed circuit, and a first jumper connected to the first ground conductive pattern is disposed between the first and second coils so as to adjust an inductive coupling of the double-tuned circuit, thereby achieving a coupling adjusting structure for a double-tuned circuit whose inductive coupling is adjustable.
摘要翻译：在根据本发明的用于双调谐电路的耦合调整结构中，第一和第二线圈被配置为使得形成在印刷电路的第一表面上的一对第一导电图案和形成在印刷电路板的第二表面通过相应的连接导体连接，从而使第一和第二线圈变薄和薄。此外，第一线圈的一端和第二线圈的对应端部彼此靠近设置，第一接地导体图案至少设置在印刷电路的第一表面上，并且第一跳线连接到第一接地导电图案设置在第一和第二线圈之间，以便调整双调谐电路的电感耦合，从而实现用于电感耦合可调节的双调谐电路的耦合调节结构。

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