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11. 发明授权

US5815055A Matched filter with improved synchronous characteristics, and reception device and communication system using the same 失效
标题翻译：具有改善的同步特性的匹配滤波器，以及使用其的接收装置和通信系统
公开(公告)号：US5815055A
公开(公告)日：1998-09-29
申请号：US681331
申请日：1996-07-23
申请人： Tadashi Eguchi , Akira Torisawa , Koichi Egara , Akihiro Koyama , Takahiro Hachisu , Akane Yokota
发明人： Tadashi Eguchi , Akira Torisawa , Koichi Egara , Akihiro Koyama , Takahiro Hachisu , Akane Yokota
IPC分类号： H03H9/145 , H03H9/25 , H03H9/42 , H03H9/64 , H04B1/707 , H04B1/7093 , H04B1/69
CPC分类号： H03H9/6406
摘要： A matched filter has an input IDT and an output IDT, and also has a device for preventing propagating surface acoustic waves from diverging. By preventing the divergence of surface acoustic waves, signals obtained in units of electrode finger pairs of the output IDT are uniformed. Furthermore, this application also discloses the following arrangement. That is, an arrangement for converging surface acoustic waves is adopted, and the width of surface acoustic waves input to the output IDT is set to be larger than at least the crossing width of electrode fingers, nearest to the input IDT, of those of the output IDT, so that some surface acoustic waves propagate along non-crossing portions of the electrode fingers, on the input IDT side, of those of the output IDT. With this arrangement, the influence of the crossing portions of the electrode fingers, closer to the input IDT, on the surface acoustic waves input to the crossing portions of the electrode fingers, farther from the input IDT, can be relaxed.
摘要翻译：匹配滤波器具有输入IDT和输出IDT，并且还具有用于防止传播表面声波发散的装置。通过防止表面声波的发散，以输出IDT的电极指对为单位获得的信号是均匀的。此外，本申请还公开了以下配置。也就是说，采用用于会聚表面声波的布置，并且输入到输出IDT的表面声波的宽度被设定为大于至少与最接近输入IDT的电极指的交叉宽度输出IDT，使得一些表面声波沿着输出IDT侧的电极指的非交叉部分传播。通过这种布置，可以放宽输入到距输入IDT更远的电极指的交叉部分的声表面波的电极指的交叉部分更靠近输入IDT的影响。

12. 发明授权

US5717274A Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same 失效
公开(公告)号：US5717274A
公开(公告)日：1998-02-10
申请号：US791069
申请日：1997-01-29
申请人： Tadashi Eguchi , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Akihiro Koyama , Takahiro Hachisu
发明人： Tadashi Eguchi , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Akihiro Koyama , Takahiro Hachisu
IPC分类号： G06G7/195 , H03H9/145 , H03H9/64 , H03H9/72
CPC分类号： H03H9/14547 , G06G7/195 , H03H9/02748 , H03H9/02787 , H03H9/14555 , H03H9/14561 , H03H9/14564 , H03H9/14567 , H03H9/6406 , H03H9/14505 , H03H9/14508 , H03H9/1455 , H03H9/14552
摘要： A surface acoustic wave device includes a piezoelectric substrate, a wave guide path provided on the piezoelectric substrate and an interdigital transducer for exciting a surface acoustic wave. The interdigital transducer is provided with plural portions of mutually different pitches of the electrode finger, respectively corresponding to different frequencies. The portions are parallelly arranged along a direction perpendicular to the propagation direction of the surface acoustic wave. The surface acoustic wave generated by the interdigital transducer is entered in concentrated manner into the wave guide path.

13. 发明授权

US5477098A Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same 失效
标题翻译：能够在多个频带中激发的高效表面声波装置，以及使用该频率的信号接收机和通信系统
公开(公告)号：US5477098A
公开(公告)日：1995-12-19
申请号：US250901
申请日：1994-05-31
申请人： Tadashi Eguchi , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Akihiro Koyama , Takahiro Hachisu
发明人： Tadashi Eguchi , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Akihiro Koyama , Takahiro Hachisu
IPC分类号： G06G7/195 , H03H9/145 , H03H9/64 , H03H9/72
CPC分类号： H03H9/14547 , G06G7/195 , H03H9/02748 , H03H9/02787 , H03H9/14555 , H03H9/14561 , H03H9/14564 , H03H9/14567 , H03H9/6406 , H03H9/14505 , H03H9/14508 , H03H9/1455 , H03H9/14552
摘要： A surface acoustic wave device includes a piezoelectric substrate, a wave guide path provided on the piezoelectric substrate and an interdigital transducer for exciting a surface acoustic wave. The interdigital transducer is provided with plural portions of mutually different pitches of the electrode finger, respectively corresponding to different frequencies. The portions are parallelly arranged along a direction perpendicular to the propagation direction of the surface acoustic wave. The surface acoustic wave generated by the interdigital transducer is entered in concentrated manner into the wave guide path.
摘要翻译：表面声波装置包括压电基板，设置在压电基板上的波导路径和用于激励表面声波的叉指式换能器。叉指式换能器具有分别对应不同频率的电极指的相互不同间距的多个部分。这些部分沿着与声表面波的传播方向垂直的方向平行布置。由叉指式换能器产生的表面声波以集中的方式输入波导路径。

14. 发明授权

US5457487A Color image forming apparatus which times release of each of plural color image signals 失效
标题翻译：对多个彩色图像信号中的每一个进行倍数释放的彩色图像形成装置
公开(公告)号：US5457487A
公开(公告)日：1995-10-10
申请号：US998867
申请日：1992-12-30
申请人： Eihiro Sakaki , Hidekazu Tominaga , Yasuo Ito , Akira Torisawa , Masaki Ohtake , Tetsuya Kobayashi , Fumihiro Ueno , Tomohiro Hashimoto , Eiichiro Teshima
发明人： Eihiro Sakaki , Hidekazu Tominaga , Yasuo Ito , Akira Torisawa , Masaki Ohtake , Tetsuya Kobayashi , Fumihiro Ueno , Tomohiro Hashimoto , Eiichiro Teshima
IPC分类号： B41J2/525 , B41J2/44 , G03G15/00 , G03G15/01 , G03G21/14 , H04N1/047 , H04N1/113 , H04N1/12 , H04N1/23 , H04N1/29 , H04N1/50 , G01D15/06
CPC分类号： H04N1/047 , G03G15/0131 , H04N1/508 , H04N1/1135 , H04N1/12 , H04N2201/04729 , H04N2201/04731 , H04N2201/04789
摘要： A color image forming apparatus forms a color image by superposing images of plural colors in plane-sequential manner. In the color image forming apparatus, the amount of aberration between the detection signal for the recording medium for the first color and the horizontal synchronization signal is measured by a counter, and the start timing of image formation of the second and subsequent colors is controlled by a delay device, according to the measured amount of aberration.
摘要翻译：彩色图像形成装置通过以平面顺序的方式叠加多种颜色的图像来形成彩色图像。在彩色图像形成装置中，通过计数器测量用于第一颜色的记录介质的检测信号和水平同步信号之间的像差量，并且第二和随后的颜色的图像形成的开始定时由延迟装置，根据测量的像差量。

15. 发明授权

US4321521A Detection device of electronic timepiece 失效
标题翻译：电子表的检测装置
公开(公告)号：US4321521A
公开(公告)日：1982-03-23
申请号：US100222
申请日：1979-12-04
申请人： Makoto Ueda , Akira Torisawa , Shuji Otawa , Masaaki Mandai , Masaharu Shida , Katsuhiko Sato
发明人： Makoto Ueda , Akira Torisawa , Shuji Otawa , Masaaki Mandai , Masaharu Shida , Katsuhiko Sato
IPC分类号： G04C3/14 , H02P8/02 , G05B19/40
CPC分类号： G04C3/143 , H02P8/02
摘要： An electronic timepiece has a stepping motor comprised of a stator, rotor and driving coil. A wave shaping circuit produces normal driving pulses and correction driving pulses having a longer pulse width than the normal driving pulses. A rotor rotation detection device detects rotation and non-rotation of the rotor after normal driving pulses are applied to the driving coil and in response to detection of a non-rotation condition, a correction driving pulse is applied to the driving coil. A magnetic field detection device detects the presence and absence of an external alternating magnetic field and in response to detection of a magnetic field, a driving pulse of longer pulse width than the correction driving pulses is applied to the driving coil to effect rotor rotation. The magnetic field detection device operates before the normal driving pulses are applied to the driving coil so that in the event of detection of a magnetic field, a driving pulse of sufficiently long pulse width will be applied to the driving coil to effect rotor rotation. In response to detection of an external alternating magnetic field by the magnetic field detection device, operation of the rotor rotation detection device is inhibited thereby conserving power and preventing mis-operation of the stepping motor.
摘要翻译：电子钟表具有由定子，转子和驱动线圈组成的步进电机。波形整形电路产生具有比正常驱动脉冲更长的脉冲宽度的正常驱动脉冲和校正驱动脉冲。转子旋转检测装置在将正常的驱动脉冲施加到驱动线圈之后并响应于非旋转状态的检测来检测转子的旋转和不旋转，将校正驱动脉冲施加到驱动线圈。磁场检测装置检测外部交变磁场的存在和不存在，并且响应于磁场的检测，将比校正驱动脉冲更长的脉冲宽度的驱动脉冲施加到驱动线圈以实现转子旋转。磁场检测装置在将正常的驱动脉冲施加到驱动线圈之前工作，使得在检测到磁场的情况下，将对驱动线圈施加足够长的脉冲宽度的驱动脉冲以实现转子旋转。响应于通过磁场检测装置检测外部交变磁场，禁止转子旋转检测装置的操作，从而节省电力并防止步进电机的误操作。

16. 发明授权

US4321519A Magnetic field detection device for electronic timepiece 失效
标题翻译：电子表的磁场检测装置
公开(公告)号：US4321519A
公开(公告)日：1982-03-23
申请号：US33230
申请日：1979-04-25
申请人： Makoto Ueda , Akira Torisawa , Shuji Otawa , Masaaki Mandai , Masaharu Shida , Katsuhiko Sato
发明人： Makoto Ueda , Akira Torisawa , Shuji Otawa , Masaaki Mandai , Masaharu Shida , Katsuhiko Sato
IPC分类号： G01R33/02 , G04C3/14 , G04G9/00 , H02P8/02 , G05B19/40
CPC分类号： G04C3/143 , G01R33/02 , G04G9/0064
摘要： An electronic timepiece of the type having a frequency dividing circuit, and a drive circuit for driving a motor having a rotor, a stator and a driving coil, is provided with a magnetic field detection device comprised of a low impedance closed loop including a low resistance element and the driving coil and a high impedance closed loop including a high resistance element and the driving coil. The driving coil develops an induced voltage when placed in an external alternating magnetic field and also functions to drive the rotor. The strength of the alternating magnetic field is measured by the voltage level developed across the high resistance element and the measuring sensitivity is improved by alternately switching between the low impedance closed loop and the high impedance closed loop. In response to the detection output of the magnetic field detection device, the effective power applied to the driving coil is increased so that the motor performance is not adversely affected by the external alternating magnetic field.
摘要翻译：具有分频电路的类型的电子钟表和用于驱动具有转子，定子和驱动线圈的电动机的驱动电路设置有包括低电阻的低阻闭环的磁场检测装置元件和驱动线圈以及包括高电阻元件和驱动线圈的高阻抗闭环。驱动线圈在放置在外部交变磁场中时产生感应电压，并且还用于驱动转子。交变磁场的强度是通过高电阻元件上产生的电压电平来测量的，并且通过在低阻抗闭环和高阻抗闭环之间交替切换来提高测量灵敏度。响应于磁场检测装置的检测输出，施加到驱动线圈的有效功率增加，使得电动机性能不受外部交变磁场的不利影响。

17. 发明授权

US4272837A Electronic timepiece with rotation detector 失效
标题翻译：带旋转探测器的电子钟表
公开(公告)号：US4272837A
公开(公告)日：1981-06-09
申请号：US898400
申请日：1978-04-20
申请人： Makoto Ueda , Akira Torisawa , Katsuhiko Satoh , Masaharu Shida , Masaaki Mandai , Kazuhiro Asano
发明人： Makoto Ueda , Akira Torisawa , Katsuhiko Satoh , Masaharu Shida , Masaaki Mandai , Kazuhiro Asano
IPC分类号： G04C3/14 , H02P8/02 , G04B19/04 , G04C19/00
CPC分类号： G04C3/143
摘要： An electronic timepiece including a dividing circuit for developing different output pulse signals having different respective pulse repetition rates, a stepping motor and a drive circuit responsive to control signals for driving the stepping motor at a normal rate and for applying a correction pulse to the stepping motor according to the control signals. A pulse combining circuit combines the different output pulse signals from the dividing circuit for generating control signals and for applying the control signals to the drive circuit. The pulse combining circuit normally generates a control signal effective to drive the stepping motor at a normal rate, and the pulse combining circuit is responsive to a correction signal to control the drive circuit to apply a corrective pulse to the stepping motor. A detection circuit detects rotation and non-rotation of the stepping motor rotor and generates a detection voltage signal indicative of the state of rotation of the rotor. A voltage comparing circuit compares the detection voltage signal with a standard voltage value and applies a correction signal to the pulse combining circuit when non-rotation of the stepping rotor is detected after a drive pulse is applied to the stepping motor.
摘要翻译：一种电子钟表，包括用于开发具有不同的脉冲重复率的不同输出脉冲信号的分频电路，响应用于以正常速率驱动步进电机的控制信号的步进电机和驱动电路，以及向步进电机施加校正脉冲根据控制信号。脉冲组合电路组合用于产生控制信号的分频电路的不同输出脉冲信号，并将控制信号施加到驱动电路。脉冲组合电路通常产生有效地以正常速率驱动步进电机的控制信号，并且脉冲组合电路响应校正信号来控制驱动电路向步进电机施加校正脉冲。检测电路检测步进电机转子的旋转和不旋转，并产生表示转子旋转状态的检测电压信号。电压比较电路将检测电压信号与标准电压值进行比较，并且在将驱动脉冲施加到步进电机之后检测到步进转子的非旋转时，向脉冲组合电路施加校正信号。

18. 发明授权

US4241434A Stepping motor mechanism for an electronic watch 失效
标题翻译：电子手表的步进电机机构
公开(公告)号：US4241434A
公开(公告)日：1980-12-23
申请号：US915179
申请日：1978-06-14
申请人： Masaharu Shida , Akira Torisawa , Makoto Ueda
发明人： Masaharu Shida , Akira Torisawa , Makoto Ueda
IPC分类号： G04C3/14 , G04C9/08 , H02P8/02 , G04C19/00 , G04C3/00 , H02K29/00
CPC分类号： H02P8/02 , G04C3/143
摘要： An electronic timepiece includes a stepping motor having a coil and a rotor. Circuitry is provided for generating and applying alternating pulses to the motor coil to effect forward stepwise rotation of the motor rotor in a forward direction and for generating and applying alternating pulses to the motor coil to effect reverse stepwise rotation of the motor rotor in a reverse direction. The reverse rotation is achieved by sets of three alternating pulses with the first pulse of each set effecting incremental angular movement of the motor rotor in the forward direction followed by the second and third pulses which effect greater icremental angular movement of the motor rotor in the reverse direction to thereby obtain for each pulse set a net angular movement of the motor rotor in the reverse direction.
摘要翻译：电子钟表包括具有线圈和转子的步进电机。提供电路，用于产生和施加交替脉冲到电动机线圈，以使电动机转子向前方向逐步旋转，并产生和施加交替脉冲到电动机线圈，以实现电动机转子沿相反方向的逐步旋转。反向旋转通过三组交替脉冲的组合实现，其中每组的第一脉冲在正向方向上影响电动机转子的增量角运动，随后是第二和第三脉冲，从而相反地实现电动机转子的更大的角运动方向，从而获得每个脉冲设定电动机转子在相反方向上的净角运动。

19. 发明授权

US06122068A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US06122068A
公开(公告)日：2000-09-19
申请号：US572613
申请日：1995-12-14
申请人： Akira Torisawa , Eihiro Sakaki , Fumihiro Ueno
发明人： Akira Torisawa , Eihiro Sakaki , Fumihiro Ueno
IPC分类号： H04N1/50 , B41B15/00 , H04N1/46
CPC分类号： H04N1/508
摘要： An image forming apparatus includes a scan unit for scanning a light beam modulated based on an image signal in the main scan direction, and a drive unit for rotating an image carrier in the subscan direction of an image. The rotation period of the image carrier is set to be an integer multiple of the scan period in the main scan direction of the light beam by the scan unit.
摘要翻译：图像形成装置包括：扫描单元，用于扫描基于主扫描方向上的图像信号调制的光束;以及驱动单元，用于使图像的副扫描方向上的图像载体旋转。图像载体的旋转周期被设置为扫描单元在光束的主扫描方向上的扫描周期的整数倍。

20. 发明授权

US5856997A Spread spectrum receiving apparatus 失效
公开(公告)号：US5856997A
公开(公告)日：1999-01-05
申请号：US546040
申请日：1995-10-20
申请人： Norihiro Mochizuki , Katsuo Saito , Akira Torisawa , Toshihiko Myojo , Ichiro Kato , Tetsuo Kanda , Atsushi Takasaki , Kazuo Moritomo , Rie Suzuki
发明人： Norihiro Mochizuki , Katsuo Saito , Akira Torisawa , Toshihiko Myojo , Ichiro Kato , Tetsuo Kanda , Atsushi Takasaki , Kazuo Moritomo , Rie Suzuki
IPC分类号： H04B1/7073 , H04J13/00 , H04B1/69
CPC分类号： H04B1/707
摘要： A receiving apparatus includes a base-band conversion circuit, a synchronizing circuit/code generator and a demodulator. The base-band conversion circuit converts a received signal into a base-band signal. The synchronizing circuit/code generator detects a spread code included in the received signal to generate a plurality of spread codes in synchronization with the spread code included in the received signal. The demodulator uses the plurality of spread codes supplied by the synchronizing circuit/code generator to demodulate the base-band signal.

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