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：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：US08847681B2

公开(公告)日：2014-09-30

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： H03F1/02 ,  H01P5/18 ,  H01P5/12 ,  H03F3/60

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：US06980061B2

公开(公告)日：2005-12-27

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

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 a surface acoustic wave device 15 that forms a feedback circuit for the amplifier; a frequency adjuster that is provided 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 a place where coupling or interference does not occur 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，形成用于放大器的反馈电路的声表面波装置15; 频率调节器，其设置有反馈电路并具有滤波器配置; 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集中地设置了用于校正振荡环路中的相位状态的振荡环路不发生耦合或干扰的位置。

公开(公告)号：US06275551B1

公开(公告)日：2001-08-14

申请号：US09124048

申请日：1998-07-29

申请人： Kiyoshi Nomura ,  Tadashi Fukami ,  Tatsuya Tsuruoka ,  Jin Nakamura

发明人： Kiyoshi Nomura ,  Tadashi Fukami ,  Tatsuya Tsuruoka ,  Jin Nakamura

IPC分类号： H04L700

CPC分类号： H04L27/2657 ,  H04L27/2602 ,  H04L27/2675

摘要： An apparatus for receiving digital information signals, including a signal receiving portion for receiving a digital information signal, and for transmitting digital data composed of a series of transmission frames each divided into a plurality of segmental periods called symbols and including a reference Symbol for synchronization, a reference Symbol data extracting portion for extracting data transmitted through a reference Symbol from each of transmission frames of digital data obtained from the received digital information signal, a frequency offset detecting portion for obtaining a first frequency offset detection output based on the received digital information signal a strength of, data transmitted through the, reference Symbol at every transmission frame and obtaining also a second frequency offset detection output based on with the received digital information signal and a strength of specific data included in data transmitted in each of the plurality of Symbols, and a frequency synchronizing control portion operative to cause the received digital information signal to have reduced frequency offset in response to the first and second frequency offset detection outputs.

摘要翻译： 一种用于接收数字信息信号的装置，包括用于接收数字信息信号的信号接收部分，以及用于发送由一系列传输帧组成的数字数据，每个传输帧被划分成多个被称为符号的分段周期并且包括用于同步的参考符号， 参考符号数据提取部分，用于从从接收到的数字信息信号获得的数字数据的每个发送帧中提取通过参考符号发送的数据;频率偏移检测部分，用于基于接收的数字信息信号获得第一频率偏移检测输出 在每个传输帧处通过参考符号发送的数据的强度，并且还基于所接收的数字信息信号获得第二频率偏移检测输出和包括在多个符号中的每一个中传输的数据中的特定数据的强度， 和频繁 cy同步控制部分，用于响应于第一和第二频偏检测输出，使接收到的数字信息信号具有减小的频率偏移。

公开(公告)号：US6108353A

公开(公告)日：2000-08-22

申请号：US7699

申请日：1998-01-15

申请人： Jin Nakamura ,  Tatsuya Tsuruoka ,  Kiyoshi Nomura

发明人： Jin Nakamura ,  Tatsuya Tsuruoka ,  Kiyoshi Nomura

IPC分类号： H04N5/455 ,  H04J11/00 ,  H04L27/22 ,  H04L27/26 ,  H04N19/423 ,  H04N19/426 ,  H04N19/60 ,  H04N19/65 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/89 ,  H04J3/06

CPC分类号： H04L27/2666 ,  H04L27/2662 ,  H04L27/2685 ,  H04L27/2678

摘要： A demodulating apparatus according for demodulating a modulated signal obtained by modulating a plurality of carriers having different frequencies, includes a data demodulating circuit for demodulating data by frequency-analyzing a time waveform of the modulated signal which is formed of a data period of one modulation time and a guard interval succeeding the data period and which includes in the data period a period having correlation with the guard interval and provided at a position away from the modulated signal by the one modulation time, a correlation circuit for detecting correlation between the guard interval of the modulated signal and the period in the data period having correlation with the guard interval and provided at a position away from the modulated signal by the one modulation time, and a synchronization signal generating circuit including the correlation circuit and for generating a synchronization signal based on a detection output from the correlation circuit. The correlation is detected in a predetermined period which is 1/2 as long as each of the guard interval and the period having correlation with the guard interval and in which correlation can substantially be detected. Therefore, it is possible to shorten a time for generating the synchronization signal.

摘要翻译： 一种用于解调通过调制具有不同频率的多个载波而获得的调制信号的解调装置，包括：数据解调电路，用于通过对由一个调制时间的数据周期形成的调制信号的时间波形进行频率分析来解调数据 以及在所述数据周期之后的保护间隔，并且在所述数据周期中包括与所述保护间隔相关的周期，并且在远离所述调制信号的位置处提供所述一个调制时间;相关电路，用于检测所述保护间隔的保护间隔之间的相关性 所述调制信号和所述数据周期中的周期与所述保护间隔相关，并且设置在远离所述调制信号的位置处于所述一个调制时间，以及同步信号生成电路，包括所述相关电路，并且用于基于 来自相关电路的检测输出。 只要保护间隔和与保护间隔相关的周期中的每一个，并且可以基本上检测相关性，则在+ E，fra 1/2 + EE的预定周期中检测相关。 因此，可以缩短生成同步信号的时间。

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。