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1. 发明专利

JP2008040696A Power supply circuit and power amplifier using the power supply circuit 审中-公开
标题翻译：电源电路和使用电源电路的功率放大器
公开(公告)号：JP2008040696A
公开(公告)日：2008-02-21
申请号：JP2006212685
申请日：2006-08-04
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： AKIMURA HIDEHARU , RYU TAKASHI
IPC分类号： G05F1/56
摘要： PROBLEM TO BE SOLVED: To provide a power supply circuit preventing the saturation of an output transistor without changing the voltage value of input signals even when the power supply voltage of the output transistor declines, and a power amplifier using the power supply circuit.
SOLUTION: In a series regulator, when the power supply voltage Vcc of the output transistor 201 drops and gets close to an output voltage Vout, the voltage gain of the output transistor 201 is adjusted to lower the output voltage Vout and the saturation of the output transistor 201 is prevented.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使当输出晶体管的电源电压下降时，提供一种防止输出晶体管的饱和而不改变输入信号的电压值的电源电路，以及使用该电源电路的功率放大器。解决方案：在串联调节器中，当输出晶体管201的电源电压Vcc下降并接近输出电压Vout时，调节输出晶体管201的电压增益以降低输出电压Vout和饱和度的输出晶体管201。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2006165707A Transistor saturation preventing circuit 审中-公开
标题翻译：晶体管饱和保护电路
公开(公告)号：JP2006165707A
公开(公告)日：2006-06-22
申请号：JP2004350508
申请日：2004-12-03
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： AKIMURA HIDEHARU , TATSUOKA KAZUKI
IPC分类号： H03G3/20 , H03G3/30
摘要： PROBLEM TO BE SOLVED: To provide a transistor saturation preventing circuit capable of preventing the saturation of an output transistor by allowing a power voltage of an output transistor to follow a coollector voltage.
SOLUTION: The transistor saturation preventing circuit includes: a voltage control means 200 for applying a voltage to a load circuit 102 for receiving a varied input voltage; and a voltage gain variable means 201 for detecting a drop of a power supply voltage of the voltage control means 200 to control the gain of the voltage control means 200, and the drop of the power supply voltage varies the gain of the voltage control means 200 to control a voltage at a voltage output terminal 101 applied to the load circuit 102 without the need for varying the voltage level of the voltage input terminal 100 thereby preventing the output transistor from being saturated.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种通过允许输出晶体管的电源电压跟随电容器电压来防止输出晶体管饱和的晶体管饱和防止电路。解决方案：晶体管饱和防止电路包括：电压控制装置200，用于向负载电路102施加电压以接收变化的输入电压; 以及用于检测电压控制装置200的电源电压下降以控制电压控制装置200的增益的电压增益可变装置201，并且电源电压的下降改变电压控制装置200的增益以控制施加到负载电路102的电压输出端子101处的电压，而不需要改变电压输入端子100的电压电平，从而防止输出晶体管饱和。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005333736A Overcurrent preventing circuit 有权
标题翻译：过流保护电路
公开(公告)号：JP2005333736A
公开(公告)日：2005-12-02
申请号：JP2004150166
申请日：2004-05-20
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： AKIMURA HIDEHARU , KATAOKA SHIGERU , NAKATANI TOGO
IPC分类号： H02H9/02 , G05F1/10 , H02H3/08 , H02H3/087 , H03K17/082 , H03K17/687
CPC分类号： H02H3/087 , H03K17/0822 , H03K17/6877
摘要： PROBLEM TO BE SOLVED: To provide an overcurrent preventing circuit which does not need a current detection dedicated high accuracy resistance element and which follows an output voltage level and can prevent the overcurrent.
SOLUTION: The overcurrent preventing circuit includes an overcurrent detecting means 122 for detecting that the overcurrent flows to a load circuit 112, and a voltage control means 121 for changing a power supply voltage to supply it to the load circuit 112. The overcurrent detecting means 122 detects the voltage drop at overcurrent generation time to the voltage supplied to the load circuit 112 at normal operation time. The voltage control means 121 controls the overcurrent flowing to the load circuit 112 based on the voltage drop.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种不需要电流检测专用高精度电阻元件并且跟随输出电压电平并且可以防止过电流的过电流防止电路。解决方案：过电流防止电路包括用于检测过载电流流向负载电路112的过电流检测装置122以及用于改变电源电压以将其提供给负载电路112的电压控制装置121.过电流检测装置122检测过电流产生时的电压降到在正常工作时间提供给负载电路112的电压。电压控制装置121基于电压降控制到负载电路112的过电流。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006311376A Transistor saturation prevention circuit 审中-公开
标题翻译：晶体管饱和度预防电路
公开(公告)号：JP2006311376A
公开(公告)日：2006-11-09
申请号：JP2005133504
申请日：2005-04-28
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： AKIMURA HIDEHARU , TATSUOKA KAZUKI
IPC分类号： H03G3/30 , H03G3/20
摘要： PROBLEM TO BE SOLVED: To provide a transistor saturation prevention circuit for preventing the saturation of a transistor by following a power voltage level without varying an input voltage even though a power voltage drops. SOLUTION: The transistor saturation prevention circuit is provided with a voltage control circuit which has a transistor connected between the power voltage and a load circuit, converts the level of voltage applied to an input terminal and supplies a constant output voltage to the load circuit through the transistor, and a voltage gain variable circuit for controlling the gain of the voltage control circuit, wherein the voltage control variable circuit varies the voltage gain of the voltage control circuit to control an output voltage, thereby preventing transistor saturation when the power voltage drops. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种晶体管饱和防止电路，用于通过跟随电源电压而不改变输入电压即使电源电压下降来防止晶体管的饱和。解决方案：晶体管饱和防止电路设置有电压控制电路，其具有连接在电源电压和负载电路之间的晶体管，转换施加到输入端子的电压电平，并向负载提供恒定的输出电压通过晶体管的电路，以及用于控制电压控制电路的增益的电压增益可变电路，其中，电压控制可变电路改变电压控制电路的电压增益以控制输出电压，从而当电源电压下降。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2004023680A Strap housing device 审中-公开
公开(公告)号：JP2004023680A
公开(公告)日：2004-01-22
申请号：JP2002179317
申请日：2002-06-20
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： AKIMURA HIDEHARU
IPC分类号： A45C13/30 , H04M1/02 , H04M1/21
摘要： PROBLEM TO BE SOLVED: To provide a strap housing device for a portable telephone system which automatically houses a strap in the portable telephone system by providing a strap winding part in the portable telephone system. SOLUTION: This strap housing device is provided with the strap winding part 8 provided in the portable telephone system and for housing the whole strap 2, a motor 15 for operating the strap winding part 8, a housing switch 4 for connecting a first gear 5 for operating the strap winding part 8 and a second gear 6 for transferring the power of the motor 15, and a controller 13 activated by the housing switch 4 to control the operation of the motor 15. By controlling the housing switch 4, the strap 2 of desired length can be housed in the portable telephone system. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2008165686A Variable regulator and power amplifier device using the variable regulator 审中-公开
标题翻译：可变调节器和使用变量调节器的功率放大器器件
公开(公告)号：JP2008165686A
公开(公告)日：2008-07-17
申请号：JP2007000284
申请日：2007-01-05
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： AKIMURA HIDEHARU , RYU TAKASHI
IPC分类号： G05F1/56 , H03G3/10
摘要： PROBLEM TO BE SOLVED: To provide a variable regulator, capable of ensuring a phase tolerance of an amplifier according to output power supply voltage or current without needing addition of phase compensation capacity. SOLUTION: In the variable regulator adapted to detect output voltage Vout by resistors R1 and R2, and stabilize output voltage of a driver transistor 201 by an amplifier 202 so that the detected voltage follows input signal voltage Vin, a current source switching circuit 211 adjusts the output current of the amplifier 202 according to the level of the input signal voltage Vin detected by a level detection circuit 211. According to this, phase compensation of the regulator can be performed without adding a capacitor for phase compensation. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供可变调节器，其能够根据输出电源电压或电流确保放大器的相位容差，而不需要增加相位补偿能力。解决方案：在适于通过电阻器R1和R2检测输出电压Vout的可变调节器中，并且通过放大器202稳定驱动晶体管201的输出电压，使得检测到的电压跟随输入信号电压Vin，电流源切换电路 211根据由电平检测电路211检测的输入信号电压Vin的电平来调节放大器202的输出电流。因此，可以在不添加用于相位补偿的电容器的情况下执行调节器的相位补偿。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2003057743A Method and system for correcting projection angle 审中-公开
标题翻译：用于校正投影角的方法和系统
公开(公告)号：JP2003057743A
公开(公告)日：2003-02-26
申请号：JP2001243099
申请日：2001-08-10
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： AKIMURA HIDEHARU
IPC分类号： G03B21/56 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a projection angle correction system which is inexpensive because of a simple constitution and automatically adjusts the distinction of an image.
SOLUTION: The system is constituted of a screen device 3 on which the image is projected to detect infrared rays and a projector 10 which projects the image on the screen device, and the projector is provided with an infrared ray radiation means 7 which irradiates a lot of different positions of the screen device by infrared rays, a means which detects arrival time differences of infrared rays to the screen device, a revolving shaft 8 which rotates a lens and the infrared ray radiation means of the projector in accordance with arrival time differences of infrared rays, and a revolving shaft control means 5 which controls the infrared ray radiation means on the basis of the arrival time differences of infrared rays to the screen device to vertically adjust the radiation position of infrared rays radiated to the screen device, and thus the radiation position in the vertical direction of infrared rays to the screen is automatically adjusted.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种投影角度校正系统，其由于结构简单而便宜，并且自动调整图像的区别。解决方案：该系统由投影图像以检测红外线的屏幕装置3和将图像投影在屏幕装置上的投影仪10构成，并且投影仪设置有红外线辐射装置7，其照射很多通过红外线的屏幕装置的不同位置，检测红外线到屏幕装置的到达时间差的装置，使透镜旋转的旋转轴8和投影仪的红外线辐射装置根据到达时间差红外线以及基于红外线到达屏幕装置的到达时间差来控制红外线辐射装置的垂直轴控制装置5，以垂直地调节辐射到屏幕装置的红外线的辐射位置，因此，自动调节红外线在屏幕垂直方向的辐射位置。

8. 发明专利

JP2001045072A ADJUSTMENT DEVICE FOR TRANSMITTED POWER WAVEFORM 失效
公开(公告)号：JP2001045072A
公开(公告)日：2001-02-16
申请号：JP21612699
申请日：1999-07-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AKIMURA HIDEHARU
IPC分类号： H04L25/03 , H04B1/04
摘要： PROBLEM TO BE SOLVED: To automatically adjust a power waveform of a transmission signal for each prescribed time by comparing a TDMA signal with fixed trapezoidal data to correct the trapezoidal data and using the corrected trapezoidal data to control timing of the transmission signal. SOLUTION: A power timing measurement device 2 detects a power level and timing of a transmitted signal (TDMA signal) outputted from a power amplifier 1, converts the transmission signal into digital data, trapezoidal data in a data transmission section 5 are compared with the digital data, timing of the trapezoidal data is corrected to be in matching with that of the digital data, the trapezoidal data whose timing is corrected is added to the transmission signal from the power amplifier to optimize a level of the output transmission signal and the width and the shape of the transmission signal are matched with those of the trapezoidal data so as to control a rising and falling timing and a slope of the transmission signal that are changed by a load capacitance of the power amplifier thereby automatically optimizing the level of the transmission signal on a time base.

9. 发明专利

JPH11187451A PORTABLE TELEPHONE SYSTEM SELECTED AMONG PLURAL SYSTEMS 失效
公开(公告)号：JPH11187451A
公开(公告)日：1999-07-09
申请号：JP36476797
申请日：1997-12-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMADA KAZUHIDE , TODA SATOSHI , ITO FUMIO , SATO SHINICHI , AKIMURA HIDEHARU
IPC分类号： H04W24/10 , H04W36/14 , H04W36/30 , H04W88/02 , H04W88/06 , H04Q7/22 , H04Q7/28 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To facilitate the changeover during a speech into other mobile communication system than a mobile communication system at a call connection destination in a mobile communication composite terminal. SOLUTION: A mobile communication composite terminal is provided with a reception electric field level detector 10, corresponding to a frequency range of each mobile communication system. A control section 20 controls the reception electric field level detector 10, based on channel data stored in a storage device 30 for detecting a reception electric field strength level of a received frequency channel received through an antenna section 1. A comparator 40 compares the detected reception electric field strength level a threshold level of the speech available electric field strength level stored in the storage device 30 and sends speech available frequency channel information to a base station through an RF section. The base station grasps the reception state for each system of the mobile communication composite terminal by repeating this sequence for all channels. Thus, the changeover during a speech to mobile communication systems other than the mobile communication system of the call connection destination is facilitated.

10. 发明专利

JPH1141311A DC BIAS DIFFERENCE CORRECTING CIRCUIT 失效
公开(公告)号：JPH1141311A
公开(公告)日：1999-02-12
申请号：JP19241997
申请日：1997-07-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AKIMURA HIDEHARU
IPC分类号： H04L27/36 , H04L27/20
摘要： PROBLEM TO BE SOLVED: To provide a DC bias difference correcting circuit in small circuit scale at low cost. SOLUTION: This circuit is provided with two amplifier circuits 11 and 12 for respectively amplifying two base band signals, two DC bias detection circuits 13 and 14 for respectively extracting only DC biases from the outputs of the respective amplifier circuits, error detection circuit 15 for detecting the differential voltage of base band signals from the outputs of the respective DC bias detection circuits, and adder 16 for adding the differential voltage to a reference bias voltage 17 of the amplifier circuit and applying the voltage to any one amplifier circuit. Since the differential voltage is fed back to the reference side of the amplifier circuit without having any digital data, a DC bias error can be reduced.

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