公开(公告)号：US06353462B1

公开(公告)日：2002-03-05

申请号：US09126255

申请日：1998-07-30

Applicant: Shigeru Osada ,  Yasuharu Kudo ,  Masashi Suzuki ,  Toshiro Furuta

Inventor： Shigeru Osada ,  Yasuharu Kudo ,  Masashi Suzuki ,  Toshiro Furuta

IPC: H04N544

CPC classification number: H04N5/44 ,  H04B1/28 ,  H04N5/46 ,  H04N21/4382 ,  H04N21/8106

Abstract: A demodulator is able to demodulate a television signal and an FM broadcast signal by a common demodulator. Also, a receiver is able to output television video signal and audio signal and an audio signal of the FM broadcast signal by the common demodulator without using a second mixer for frequency-converting the FM broadcast signal to provide an audio intermediate frequency signal of 10.7 MHz when the FM broadcast signal is received. A demodulator includes a first input terminal, a second input terminal, a third input terminal and a change-over switch and wherein the change-over switch connects the first input terminal, a video detector and a video carrier generator to receive the television signal and the change-over switch connects the third input terminal, the video detector and the video carrier generator to receive the FM broadcast signal.

Abstract translation: 解调器能够通过公共解调器解调电视信号和FM广播信号。 此外，接收机能够通过公共解调器输出电视视频信号和音频信号以及FM广播信号的音频信号，而不使用用于对FM广播信号进行频率转换的第二混频器来提供10.7MHz的音频中频信号 当收到FM广播信号时。 解调器包括第一输入端，第二输入端，第三输入端和转换开关，并且其中转换开关连接第一输入端，视频检测器和视频载波发生器以接收电视信号，以及 转换开关连接第三输入端，视频检测器和视频载波发生器，以接收FM广播信号。

公开(公告)号：US06731348B2

公开(公告)日：2004-05-04

申请号：US09814343

申请日：2001-03-21

Applicant: Shigeru Osada ,  Masaki Yamamoto ,  Toshiro Furuta

Inventor： Shigeru Osada ,  Masaki Yamamoto ,  Toshiro Furuta

IPC: H04N546

CPC classification number: H03J3/08

Abstract: A television tuner includes a mixer circuit for receiving a television signal or an FM signal, and a local oscillator circuit for generating an oscillation signal received by the mixer circuit. When the television signal is received, a television intermediate-frequency signal is generated by the mixer circuit. When the FM broadcast signal is received, an FM intermediate-frequency signal having a frequency converted to about 10.7 MHz is generated by the mixer circuit.

Abstract translation: 电视调谐器包括用于接收电视信号或FM信号的混频器电路，以及用于产生由混频器电路接收的振荡信号的本地振荡器电路。 当接收到电视信号时，由混频器电路产生电视中频信号。 当接收到FM广播信号时，由混频器电路产生频率转换为约10.7MHz的FM中频信号。

公开(公告)号：US06236437B1

公开(公告)日：2001-05-22

申请号：US09126674

申请日：1998-07-30

Applicant: Takeo Suzuki ,  Shigeru Osada ,  Toshiro Furuta

Inventor： Takeo Suzuki ,  Shigeru Osada ,  Toshiro Furuta

IPC: H04N544

CPC classification number: H04N5/50 ,  G06F3/14 ,  G09G2340/125 ,  H04N5/44 ,  H04N5/4446 ,  H04N9/641 ,  H04N21/4113 ,  H04N21/4263

Abstract: A television signal receiving tuner comprising: an input terminal for admitting VHF and UHF band television signals; a correcting circuit connected to the input terminal and having inductors to correct an effective length of an antenna; a branching filter for branching the signals from the correcting circuit into VHF band television signals and UHF band television signals to be output separately; a VHF tuner unit for receiving the VHF television signals from the branching filter; and a UHF tuner unit for receiving the UHF television signals from the branching filter; wherein values of the inductors are made variable

Abstract translation: 一种电视信号接收调谐器，包括：用于接收VHF和UHF频带电视信号的输入端; 校正电路，连接到输入端并具有用于校正天线有效长度的电感器; 用于将来自校正电路的信号分支为VHF频带电视信号和UHF频带电视信号的分路滤波器，以分别输出; VHF调谐器单元，用于从分路滤波器接收VHF电视信号; 以及用于从分路滤波器接收UHF电视信号的UHF调谐器单元; 其中电感器的值是可变的

公开(公告)号：US20070052865A1

公开(公告)日：2007-03-08

申请号：US11481703

申请日：2006-07-05

Applicant: Takeo Suzuki ,  Shigeru Osada

Inventor： Takeo Suzuki ,  Shigeru Osada

IPC: H03B5/08 ,  H04N5/50

CPC classification number: H03J5/0218 ,  H03J3/08 ,  H03J3/26

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06842198B2

公开(公告)日：2005-01-11

申请号：US09972162

申请日：2001-10-05

Applicant: Takeo Suzuki ,  Shigeru Osada

Inventor： Takeo Suzuki ,  Shigeru Osada

IPC: H03D7/16 ,  H03J1/00 ,  H03J3/32 ,  H03J5/24 ,  H03L7/099 ,  H04B1/26 ,  H04N5/44 ,  H04N5/50

CPC classification number: H03J5/244 ,  H03J1/0041 ,  H03J3/32 ,  H03J5/24 ,  H03L7/0805 ,  H03L7/099

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06707681B2

公开(公告)日：2004-03-16

申请号：US10346324

申请日：2003-01-17

Applicant: Takeo Suzuki ,  Shigeru Osada

Inventor： Takeo Suzuki ,  Shigeru Osada

IPC: H05K706

CPC classification number: H01L23/66 ,  H01F27/292 ,  H01F27/40 ,  H01L25/0657 ,  H01L2224/16 ,  H01L2225/06513 ,  H01L2225/06517 ,  H01L2225/06541 ,  H01L2225/06565 ,  H01L2924/15192 ,  H01L2924/15313

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06864776B2

公开(公告)日：2005-03-08

申请号：US10670687

申请日：2003-09-25

Applicant: Shigeru Osada

Inventor： Shigeru Osada

IPC: H04N5/50 ,  H01F5/00 ,  H01F17/00 ,  H05K1/16 ,  H05K3/22

CPC classification number: H05K1/165 ,  H01F5/003 ,  H01F17/0033 ,  H05K3/222 ,  H05K2201/093 ,  H05K2201/09336 ,  H05K2201/097 ,  H05K2201/10636 ,  H05K2203/171 ,  Y02P70/611

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06822697B1

公开(公告)日：2004-11-23

申请号：US09627337

申请日：2000-07-28

Applicant: Shigeru Osada

Inventor： Shigeru Osada

IPC: H04N550

CPC classification number: H03J5/244

Abstract: Needless signal that causes interference is prevented from entering to eliminate the generation of interfering signal. A television tuner is provided with a band switching circuit to which television signals of a plurality of channels arranged in a predetermined frequency band are supplied, the band switching circuit has a plurality of filters having the cutoff frequency of every one octave frequency in the predetermined frequency band, the cutoff frequency of the plurality of filters is made continuous every one octave in the predetermined frequency band, and the television signal of the channel to be received is sent out through a specified filter having the cutoff frequency within one octave from the frequency of the television signal of the channel to be received.

Abstract translation: 防止引起干扰的不必要的信号进入以消除干扰信号的产生。 电视调谐器设置有频带切换电路，以预定频带布置的多个频道的电视信号被提供给频带切换电路，频带切换电路具有多个滤波器，其具有预定频率中每一倍频程频率的截止频率 频带，使多个滤波器的截止频率在预定频带中每八度进行连续，并且通过具有截止频率在一个八度以内的特定滤波器将待接收的信道的电视信号从 要接收的频道的电视信号。

公开(公告)号：US06784780B2

公开(公告)日：2004-08-31

申请号：US10217557

申请日：2002-08-13

Applicant: Shigeru Osada

Inventor： Shigeru Osada

IPC: H01F500

CPC classification number: H05K1/165 ,  H01F5/003 ,  H01F17/0033 ,  H05K3/222 ,  H05K2201/093 ,  H05K2201/09336 ,  H05K2201/097 ,  H05K2201/10636 ,  H05K2203/171 ,  Y02P70/611

Abstract: A coupling adjusting structure for a double-tuned circuit contains first and second coils that 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. 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. A first jumper connected to the first ground conductive pattern is disposed between the first and second coils to adjust an inductive coupling of the double-tuned circuit.

Abstract translation: 用于双调谐电路的耦合调节结构包括第一和第二线圈，其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第二表面的相应的一对第二导电图案 印刷电路板通过相应的连接导体连接。 第一线圈的一端和第二线圈的对应端部彼此靠近地设置。 第一接地导电图案至少设置在印刷电路的第一表面上。 连接到第一接地导电图案的第一跨接件设置在第一和第二线圈之间，以调整双调谐电路的电感耦合。

公开(公告)号：US07436276B2

公开(公告)日：2008-10-14

申请号：US11481703

申请日：2006-07-05

Applicant: Takeo Suzuki ,  Shigeru Osada

Inventor： Takeo Suzuki ,  Shigeru Osada

IPC: H03J3/20

CPC classification number: H03J5/0218 ,  H03J3/08 ,  H03J3/26

Abstract: 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.

Abstract translation: 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。