公开(公告)号：US07289001B2

公开(公告)日：2007-10-30

申请号：US11293008

申请日：2005-12-02

申请人： Kenji Suzuki ,  Tatsuya Tsuruoka

发明人： Kenji Suzuki ,  Tatsuya Tsuruoka

IPC分类号： H03B5/18

CPC分类号： H03B5/187

摘要： An oscillator includes a phase shifter and a power distributor which are disposed in a dielectric substrate comprising a plurality of stacked dielectric layers. The phase shifter comprises a coupler and a reflecting circuit. The dielectric substrate has a first formation region containing a plurality of electrodes serving as the coupler, a second formation region containing a plurality of electrodes serving as the reflecting circuit, and a third formation region containing a plurality of electrodes serving as the power distributor. The first formation region, the second formation region, and the third formation region are disposed in respective positions that are spaced from each other in a plane within the dielectric substrate.

摘要翻译： 振荡器包括移相器和功率分配器，其布置在包括多个堆叠的电介质层的电介质衬底中。 移相器包括耦合器和反射电路。 电介质基板具有包含多个用作耦合器的电极的第一形成区域，包含多个用作反射电路的电极的第二形成区域和包含用作功率分配器的多个电极的第三形成区域。 第一形成区域，第二形成区域和第三形成区域设置在电介质基板内的平面中彼此间隔开的各个位置。

公开(公告)号：US06559738B2

公开(公告)日：2003-05-06

申请号：US09726073

申请日：2000-11-29

申请人： Tatsuya Tsuruoka ,  Yasufumi Horio ,  Kenji Suzuki

发明人： Tatsuya Tsuruoka ,  Yasufumi Horio ,  Kenji Suzuki

IPC分类号： H03H964

CPC分类号： H03H9/643 ,  H03H9/14505

摘要： A unidirectional transducer for a SAW filter having a first group (D) including electrode finger (21) and electrode fingers (14) and (16) arranged at center distances of 3&lgr;/8 and 5&lgr;/8 in a direction opposite to the propagation direction of the surface acoustic wave from electrode finger (21); a second group (E) including electrode fingers (22), (15) and (20) arranged at center distances of 10&lgr;/8, 13&lgr;/8 and 15&lgr;/8 in the propagation direction from electrode finger (21); and a third group (F) including electrode fingers (17), (18) and (19) arranged at center distances of 3&lgr;/8, 5&lgr;/8 and 7&lgr;/8 in the propagation direction from electrode finger (21).

摘要翻译： 一种用于SAW滤波器的单向换能器，具有包括电极指（21）和电极指（14）的第一组（D）和（16），其布置在与传播方向相反的方向上的中心距离为3lambd / 8和5lambd / 的来自电极指（21）的表面声波; 第二组（E），其包括以电极指（21）的传播方向布置在中心距离为10lambd / 8,13lambd / 8和15lambd / 8的电极指（22），（15）和（20） 以及第三组（F），其包括沿电极指（21）的传播方向布置在中心距离为3lambd / 8,5lambd / 8和7lambd / 8的电极指（17），（18）和（19）。

公开(公告)号：US20110169590A1

公开(公告)日：2011-07-14

申请号：US12909226

申请日：2010-10-21

申请人： Masahiko Namerikawa ,  Shinsuke Yano ,  Yasufumi Horio ,  Tatsuya Tsuruoka ,  Takami Hirai ,  Hideaki Okubo ,  Atsuo Mizuma

发明人： Masahiko Namerikawa ,  Shinsuke Yano ,  Yasufumi Horio ,  Tatsuya Tsuruoka ,  Takami Hirai ,  Hideaki Okubo ,  Atsuo Mizuma

IPC分类号： H01P5/12

CPC分类号： H03F1/0288 ,  H01P5/12 ,  H01P5/187 ,  H03F3/602 ,  H03F2200/204

摘要： A combiner for a Doherty amplifier includes, on and in a dielectric substrate, a carrier input terminal, a peak input terminal, an output terminal, a combining point for combining an output signal from the carrier amplifier and an output signal from the peak amplifier, a first λ/4 line connected between the carrier input terminal and the combining point, a second λ/4 line connected between the combining point and the output terminal, and a first directional coupler. The first directional coupler includes a third λ/4 line electromagnetically coupled to one, to be monitored, of the first λ/4 line and the second λ/4 line.

摘要翻译： Doherty放大器的组合器在电介质衬底上和电介质衬底中包括载波输入端，峰值输入端，输出端，用于组合来自载波放大器的输出信号和来自峰值放大器的输出信号的组合点， 连接在载波输入端和组合点之间的第一λ/ 4线，连接在组合点和输出端之间的第二λ/ 4线和第一定向耦合器。 第一定向耦合器包括电磁耦合到第一λ/ 4线和第二λ/ 4线的待监视的第三λ/ 4线。

公开(公告)号：US06591092B1

公开(公告)日：2003-07-08

申请号：US09629709

申请日：2000-07-31

申请人： Tatsuya Tsuruoka

发明人： Tatsuya Tsuruoka

IPC分类号： H04B106

CPC分类号： H03G3/3078 ,  H04L27/2602 ,  H04L27/2647

摘要： A gain of a broadcast signal receiver for the digital audio broadcast (DAB) system is controlled in order to obtain an output signal of a predetermined level using an AGC loop. The DAB signal of the DAB system includes a Guard Interval within an interval of each symbol, and the Guard Interval does not include valid data to be recovered. Accordingly, the gain change of the AGC loop is done within the Guard Interval in order to avoid signal distortion in the output signal, thereby the DAB receiver having high fidelity is achieved with low cost.

摘要翻译： 控制用于数字音频广播（DAB）系统的广播信号接收机的增益，以便使用AGC环路获得预定电平的输出信号。 DAB系统的DAB信号在每个符号的间隔内包括保护间隔，Guard Interval不包括要恢复的有效数据。 因此，为了避免输出信号中的信号失真，在保护间隔内进行AGC环路的增益变化，从而以低成本实现高保真度的DAB接收机。

公开(公告)号：US20060119231A1

公开(公告)日：2006-06-08

申请号：US11293008

申请日：2005-12-02

申请人： Kenji Suzuki ,  Tatsuya Tsuruoka

发明人： Kenji Suzuki ,  Tatsuya Tsuruoka

IPC分类号： H01L41/18 ,  H01L41/04 ,  H01L41/08 ,  H02N2/00

CPC分类号： H03B5/187

摘要： An oscillator includes a phase shifter and a power distributor which are disposed in a dielectric substrate comprising a plurality of stacked dielectric layers. The phase shifter comprises a coupler and a reflecting circuit. The dielectric substrate has a first formation region containing a plurality of electrodes serving as the coupler, a second formation region containing a plurality of electrodes serving as the reflecting circuit, and a third formation region containing a plurality of electrodes serving as the power distributor. The first formation region, the second formation region, and the third formation region are disposed in respective positions that are spaced from each other in a plane within the dielectric substrate.

摘要翻译： 振荡器包括移相器和功率分配器，其布置在包括多个堆叠的电介质层的电介质衬底中。 移相器包括耦合器和反射电路。 电介质基板具有包含多个用作耦合器的电极的第一形成区域，包含多个用作反射电路的电极的第二形成区域和包含用作功率分配器的多个电极的第三形成区域。 第一形成区域，第二形成区域和第三形成区域设置在电介质基板内的平面中彼此间隔开的各个位置。

公开(公告)号：US06192056B1

公开(公告)日：2001-02-20

申请号：US09071935

申请日：1998-05-04

申请人： Tatsuya Tsuruoka

发明人： Tatsuya Tsuruoka

IPC分类号： H04J306

CPC分类号： H04L27/2656 ,  H04L7/08 ,  H04L27/2662 ,  H04L27/2676 ,  H04L2007/045

摘要： A demodulating apparatus and a demodulating method includes a correlation detector for detecting a correlation between a guard section of the symbol of a digital orthogonal frequency division multiplex modulated signal and a section having a correlation with the guard section in an effective symbol of the symbol, a section integrator for section integrating a detected output of the correlation detector with respect to the guard section, a peak detector for detecting a peak of a triangular wave signal from the section integrator, and a frame timing signal producing circuit for producing a frame timing signal of a predetermined frame of each of the frames based on a peak detecting signal from the peak detector. The frame synchronizing signal generator circuit may be made synchronized by a frame timing signal from the frame timing signal producing circuit.

摘要翻译： 解调装置和解调方法包括：相关检测器，用于检测数字正交频分复用调制信号的符号的保护部分与符号的有效符号中与保护部分相关的部分之间的相关性; 用于将相关检测器的检测输出相对于保护部分积分的部分积分器，用于检测来自部分积分器的三角波信号的峰值的峰值检测器和用于产生帧定时信号的帧定时信号的帧定时信号产生电路 基于来自峰值检测器的峰值检测信号，每帧的预定帧。 帧同步信号发生器电路可以通过来自帧定时信号产生电路的帧定时信号同步。

公开(公告)号：US5592344A

公开(公告)日：1997-01-07

申请号：US568799

申请日：1995-12-07

申请人： Tatsuya Tsuruoka

发明人： Tatsuya Tsuruoka

IPC分类号： G11B5/03 ,  G11B5/02

CPC分类号： G11B5/03 ,  G11B5/02

摘要： An Alternating Current bias control circuit for a magnetic recording head which is suitable to be formed by an Integrated Circuit, wherein a band-pass filter for extracting an audio frequency signal component from a terminal voltage of the magnetic recording head and for supplying the audio frequency signal component to a peak detector is formed by a Resistor-Capacitor circuit. The input impedance of the band-pass filter is made high enough to reduce the power consumption, and the output impedance of the same is made low enough to facilitate impedance matching with the peak detector.

摘要翻译： 一种适用于由集成电路形成的用于磁记录头的交流偏压控制电路，其中带通滤波器用于从磁记录头的端电压提取音频信号分量并提供音频频率 峰值检测器的信号分量由电阻 - 电容器电路形成。 带通滤波器的输入阻抗足够高以降低功耗，并且其输出阻抗被制成足够低以便于与峰值检测器的阻抗匹配。

公开(公告)号：US20050001690A1

公开(公告)日：2005-01-06

申请号：US10836195

申请日：2004-05-03

申请人： Yutaka Takada ,  Kenji Suzuki ,  Tatsuya Tsuruoka

发明人： Yutaka Takada ,  Kenji Suzuki ,  Tatsuya Tsuruoka

IPC分类号： H03B5/30 ,  H03B5/32 ,  H04B1/10

CPC分类号： H03B5/326

摘要： The problem of interference and coupling between circuits that arises in reducing the size of a voltage-controlled oscillator by using low temperature co-fired ceramics (LTCC) substrate technology is alleviated. A voltage-controlled oscillator includes an amplifier 11; a surface acoustic wave device 15 that forms a feedback circuit for the amplifier; a frequency adjuster 14 that is provided in the feedback circuit and has a filter configuration; a phase shifter 13 including a hybrid coupler having an additional controller that receives a control voltage from an external source and changes a phase in an oscillation loop; an equal power distributor 12 that equally distributes output power in the oscillation loop and outputs the power to the outside of the oscillation loop; and a delay line 16 concentratedly provided in a place where coupling or interference does not occur in the oscillation loop for correcting a phase condition in the oscillation loop.

摘要翻译： 通过使用低温共烧陶瓷（LTCC）衬底技术来减小压控振荡器的尺寸产生的电路之间的干扰和耦合问题得到缓解。 压控振荡器包括放大器11; 形成放大器的反馈电路的声表面波装置15; 频率调节器14，其设置在反馈电路中并具有滤波器构造; 移相器13，包括具有附加控制器的混合耦合器，所述附加控制器从外部源接收控制电压并改变振荡回路中的相位; 相等的配电器12，其在振荡回路中均等地分配输出功率，并将功率输出到振荡回路的外部; 并且延迟线16集中地设置在用于校正振荡回路中的相位状态的振荡环路中不发生耦合或干扰的位置。

公开(公告)号：US06549589B1

公开(公告)日：2003-04-15

申请号：US09252777

申请日：1999-02-19

申请人： Tatsuya Tsuruoka

发明人： Tatsuya Tsuruoka

IPC分类号： H04L2706

CPC分类号： H04L27/2678 ,  H04L27/2662

摘要： A DAB (Digital Audio Broadcasting) receiver includes a delay circuit for delaying a received DAB signal by a prescribed period, a correlation circuit for taking correlation between a delayed output of the delay circuit and the DAB signal, a moving average circuit for moving-averaging a correlation output of the correlation circuit over a width that is equal to a guard period, a peak detection circuit for detecting a position in time of a peak of a moving average output of the moving average circuit, a calculation circuit for calculating an error in a reception frequency based on a phase deviation in the DAB signal at the position in time that is indicated by a peak detection output of the peak detection circuit, an FFT (Fast Fourier Transform) circuit for subjecting the DAB signal to FFT processing, and a detection circuit for determining a reception center frequency based on an FFT output of the FFT circuit. The error in the reception frequency is corrected by controlling a local oscillation frequency based on a calculation output of the calculation circuit. An error in the reception frequency is corrected by performing carrier shifting based on a detection output of the detection circuit. As a result, the time necessary for tuning can be shortened.

摘要翻译： DAB（数字音频广播）接收机包括用于将接收的DAB信号延迟预定周期的延迟电路，用于获取延迟电路的延迟输出与DAB信号之间的相关性的相关电路，用于移动平均的移动平均电路 在等于保护周期的宽度上的相关电路的相关输出，用于检测移动平均电路的移动平均输出的峰值的时间位置的峰值检测电路，用于计算移动平均电路的误差的计算电路 基于由峰值检测电路的峰值检测输出指示的时间位置处的DAB信号中的相位偏差的接收频率，对DAB信号进行FFT处理的FFT（快速傅里叶变换）电路，以及 检测电路，用于基于FFT电路的FFT输出来确定接收中心频率。 通过基于计算电路的计算输出来控制本地振荡频率来校正接收频率中的误差。 通过基于检测电路的检测输出执行载波移位来校正接收频率的误差。 结果，可以缩短调谐所需的时间。

公开(公告)号：US6047034A

公开(公告)日：2000-04-04

申请号：US968133

申请日：1997-11-12

申请人： Tatsuya Tsuruoka

发明人： Tatsuya Tsuruoka

IPC分类号： H04H20/00 ,  H04J11/00 ,  H04L27/22

CPC分类号： H04H60/43 ,  H04L27/2662 ,  H04L27/2678 ,  H04H2201/20

摘要： A discriminating apparatus for digital audio broadcasting according to the present invention includes a delay means for delaying an input signal by a time corresponding to a period of an effective symbol in a symbol, a correlation means for judging whether any correlation exists or not between the input signal and a delayed signal from the delay means, a moving average means for calculating a moving average of an output of the correlation means in a period corresponding to a guard interval in the symbol, and a comparing means for comparing an output of the moving average means with a threshold level. It is determined based on an output of the comparing means whether or not the input signal is a digital audio broadcasting signal.

摘要翻译： 根据本发明的用于数字音频广播的鉴别装置包括延迟装置，用于将输入信号延迟与符号中的有效符号的周期相对应的时间;相关装置，用于判断输入之间是否存在相关性 信号和来自延迟装置的延迟信号;移动平均装置，用于在与符号中的保护间隔相对应的周期中计算相关装置的输出的移动平均值;以及比较装置，用于比较移动平均线的输出 意味着阈值水平。 基于比较装置的输出确定输入信号是否是数字音频广播信号。