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71. 发明申请

US20100225250A1 DRIVE CIRCUIT OF DC/DC CONVERTER, LIGHT EMITTING APPARATUS AND ELECTRONIC DEVICE USING THE SAME 有权
标题翻译： DC / DC转换器，发光装置和使用它的电子装置的驱动电路
公开(公告)号：US20100225250A1
公开(公告)日：2010-09-09
申请号：US11993058
申请日：2006-06-13
申请人： Yoichi Tamegai , Isao Yamamoto
发明人： Yoichi Tamegai , Isao Yamamoto
IPC分类号： H05B37/02 , H03K3/01
CPC分类号： G03B15/05 , G03B2215/05 , H02M3/33523 , H05B33/0815 , H05B33/0818
摘要： A drive circuit controls the on/off state of a switching transistor of a DC/DC converter. A first resistor is provided on a path of current flowing through a primary coil of a transformer connected to the switching transistor, and one end of the first resistor is grounded. A second resistor is provided on a path of current flowing through a secondary coil of the transformer, and one end of the second resistor is grounded. A switching controller turns off the switching transistor when a first detection voltage exceeds a first threshold voltage and, turns on the switching transistor after lapse of predetermined delay time since a second detection voltage exceeds the second threshold voltage.
摘要翻译：驱动电路控制DC / DC转换器的开关晶体管的导通/截止状态。在流过连接到开关晶体管的变压器的初级线圈的电流路径上设置第一电阻器，并且第一电阻器的一端接地。在流过变压器的次级线圈的电流路径上设置第二电阻器，第二电阻器的一端接地。当第一检测电压超过第一阈值电压时，开关控制器关断开关晶体管，并且在第二检测电压超过第二阈值电压之后，经过预定延迟时间之后导通开关晶体管。

72. 发明授权

US07642761B2 Power supply circuit 有权
标题翻译：电源电路
公开(公告)号：US07642761B2
公开(公告)日：2010-01-05
申请号：US12256861
申请日：2008-10-23
申请人： Yoshikazu Sasaki , Isao Yamamoto , Masao Yonemaru
发明人： Yoshikazu Sasaki , Isao Yamamoto , Masao Yonemaru
IPC分类号： G05F1/00
CPC分类号： G05F1/56 , H02M1/08 , H02M1/32
摘要： A power supply circuit includes a standard voltage generator; a regulator to control an output voltage, and to be capable of being switched ON/OFF; a capacitor in parallel between the standard voltage generator and the regulator; a discharging circuit including a first switch and a second switch configured to discharge electrical charges from the capacitor via the second switch while the regulator is in an OFF state; and a starting controller configured to transmit a signal for controlling the first switch and the second switch. The first switch is connected in series between the standard voltage generator and the regulator. The second switch has one end connected to a connection node between the first switch and the regulator, and has another end connected to a ground. When the first switch is in OFF state, the second switch is turned to ON state while the regulator is in OFF state.
摘要翻译：电源电路包括标准电压发生器; 用于控制输出电压并且能够被接通/断开的调节器; 在标准电压发生器和调节器之间并联的电容器; 放电电路，包括第一开关和第二开关，所述第二开关被配置为在所述调节器处于OFF状态时经由所述第二开关从所述电容器放电电荷; 以及启动控制器，被配置为发送用于控制所述第一开关和所述第二开关的信号。第一个开关串联在标准电压发生器和调节器之间。第二开关的一端连接到第一开关和调节器之间的连接节点，另一端连接到地。当第一开关处于OFF状态时，第二开关在调节器处于OFF状态时转为ON状态。

73. 发明申请

US20090242734A1 CURRENT DETECTION CIRCUIT, PHOTORECEIVER USING THE SAME, LIGHT EMISSION CONTROL DEVICE, AND ELECTRONIC DEVICE USING THE SAME 有权
标题翻译：电流检测电路，使用该电路的光电转换器，光发射控制装置和使用其的电子装置
公开(公告)号：US20090242734A1
公开(公告)日：2009-10-01
申请号：US12088172
申请日：2006-09-14
申请人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
发明人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
IPC分类号： G01J1/44
CPC分类号： G01J1/46 , G01R19/0092 , H01L31/14 , H04N5/2351 , H04N5/2354
摘要： A first transistor may be provided on a current path of a photo transistor. The bias current path may include a bias switch and a first bias resistor connected in series and is provided in parallel with a main current path including the phototransistor. A second transistor may configure a current mirror circuit with the first transistor, and generates second current formed by multiplying the first current flowing in the first transistor by a predetermined factor. The second current is charged in the charging capacitor and converted into a voltage. The bias current path turns on prior to the start of light reception of the phototransistor and turns off after a predetermined period has elapsed from the start of light reception of the phototransistor.
摘要翻译：第一晶体管可以设置在光电晶体管的电流路径上。偏置电流路径可以包括串联连接的偏置开关和第一偏置电阻器，并且与包括光电晶体管的主电流路径平行地设置。第二晶体管可以配置与第一晶体管的电流镜像电路，并且产生通过将在第一晶体管中流动的第一电流乘以预定因子而形成的第二电流。第二电流在充电电容器中充电并转换成电压。在光电晶体管的光接收开始之前，偏置电流路径导通，并且在从光电晶体管的光接收开始经过预定时间之后关断偏置电流。

74. 发明申请

US20090129768A1 CONTROL CIRCUIT FOR SELF-EXCITATION DC/DC CONVERTER, LIGHT EMITTING DEVICE USING SUCH CONTROL CIRCUIT, AND ELECTRONIC DEVICE 有权
标题翻译：自激式DC / DC转换器的控制电路，使用这种控制电路的发光装置和电子装置
公开(公告)号：US20090129768A1
公开(公告)日：2009-05-21
申请号：US12096803
申请日：2006-12-06
申请人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
发明人： Yoichi Tamegai , Satoru Nate , Isao Yamamoto
IPC分类号： G03B7/26 , G05F1/46 , H05B37/02
CPC分类号： G03B15/05 , G03B2215/05 , H02M3/156
摘要： A switching transistor is connected to the primary coil of a transformer. A first resistor is provided such that one end thereof is connected to the switching transistor, and the other end thereof is grounded. A first voltage comparator compares a first detection voltage with a first threshold voltage. A second voltage comparator compares a second detection voltage with a second threshold voltage. A switching control unit controls the ON/OFF state of the switching transistor according to the output signals of the first voltage comparator and the second voltage comparator. A first electrode pad through a fourth electrode pad are provided to the respective nodes of the switching transistor and the first resistor.
摘要翻译：开关晶体管连接到变压器的初级线圈。提供第一电阻器，使得其一端连接到开关晶体管，并且其另一端接地。第一电压比较器将第一检测电压与第一阈值电压进行比较。第二电压比较器将第二检测电压与第二阈值电压进行比较。开关控制单元根据第一电压比较器和第二电压比较器的输出信号来控制开关晶体管的导通/截止状态。通过第四电极焊盘的第一电极焊盘设置到开关晶体管和第一电阻器的各个节点。

75. 发明申请

US20090039234A1 LIGHT-EMISSION CONTROL CIRCUIT 审中-公开
标题翻译：发光控制电路
公开(公告)号：US20090039234A1
公开(公告)日：2009-02-12
申请号：US12188671
申请日：2008-08-08
申请人： Isao Yamamoto , Koichi Miyanaga
发明人： Isao Yamamoto , Koichi Miyanaga
IPC分类号： G01J1/32
CPC分类号： G09G3/3413 , G01J1/32 , G02B6/0068 , G09G2320/0233 , G09G2320/064 , G09G2320/0666 , G09G2360/145
摘要： A light-emission control circuit may include n light-emitting devices, where n is an integer equal to or greater than 2; a light guide plate which causes light emitted by the n light-emitting devices to reach the entirety of the back of a liquid crystal panel; a measuring unit for measuring a luminance of the entirety of the n light-emitting devices operating in the liquid crystal panel; and a control unit for comparing the measured luminance with a predetermined value and controlling the luminance of the n light-emitting devices, based on a result of comparison, wherein the n light-emitting devices are attached to a side of the light guide plate, and the measuring unit is attached to an opposite side of the light guide plate.
摘要翻译：发光控制电路可以包括n个发光器件，其中n是等于或大于2的整数; 导光板，其使由n个发光元件发出的光到达液晶面板的整个背面; 用于测量在液晶面板中操作的n个发光装置的整体的亮度的测量单元; 以及控制单元，用于根据比较结果，将测量的亮度与预定值进行比较并控制n个发光器件的亮度，其中n个发光器件被安装在导光板的一侧，并且测量单元附接到导光板的相对侧。

76. 发明授权

US07382974B2 Information receiving/recording/reproducing apparatus and method thereof using a secondary memory device before switching to a real time transmission 失效
标题翻译：信息接收/记录/再现装置及其方法在切换到实时传输之前使用辅助存储装置
公开(公告)号：US07382974B2
公开(公告)日：2008-06-03
申请号：US09979853
申请日：2001-03-22
申请人： Koichi Kameyama , Isao Yamamoto
发明人： Koichi Kameyama , Isao Yamamoto
IPC分类号： H04N5/00 , H04N5/91
CPC分类号： H04N5/76 , H04N5/781 , H04N5/907 , H04N5/9261
摘要： A recording and reproduction allows recording and playback of video and audio signals. While viewing a recorded video and audio signal, it is sometimes desirable to switch to a real-time transmission. A time lag, however, can occur during this switching when a disk recording device is used. By providing a system with both a disk recording device and a high speed semiconductor recording device, it is possible to realize a smaller time lag and therefore smooth switching from a recorded signal to a real-time signal.
摘要翻译：记录和再现允许记录和播放视频和音频信号。在观看录制的视频和音频信号的同时，有时需要切换到实时传输。然而，当使用盘记录装置时，在该切换期间可能发生时滞。通过提供具有盘记录装置和高速半导体记录装置的系统，可以实现较小的时间滞后，从而从记录信号到实时信号的平滑切换。

77. 发明授权

US07321257B2 Semiconductor device capable of detecting an open bonding wire using weak current 有权
标题翻译：能够使用弱电流检测开路接合线的半导体装置
公开(公告)号：US07321257B2
公开(公告)日：2008-01-22
申请号：US10931445
申请日：2004-09-01
申请人： Isao Yamamoto , Koichi Miyanaga
发明人： Isao Yamamoto , Koichi Miyanaga
IPC分类号： G05F1/10 , G05F3/02
CPC分类号： H01L24/49 , G05F1/56 , H01L24/48 , H01L2224/05554 , H01L2224/48091 , H01L2224/48245 , H01L2224/48247 , H01L2224/49113 , H01L2224/49175 , H01L2924/00014 , H01L2924/01004 , H01L2924/01005 , H01L2924/01006 , H01L2924/01015 , H01L2924/01033 , H01L2924/01082 , H01L2924/01084 , H01L2924/014 , H01L2924/1305 , H01L2924/13091 , H01L2924/14 , H01L2924/19043 , H01L2924/00 , H01L2224/45099 , H01L2224/05599
摘要： An IC chip has a series regulator built therein. A battery voltage is applied to an input pin. An output of a transistor constituting the series regulator occurs at an output pin via an output pad. A feedback signal derived from an output voltage occurs at an end of a voltage division resistor via a feedback pad. Diodes connect the output pad and the feedback pad.
摘要翻译： IC芯片内置有串联调节器。电池电压施加到输入引脚。构成串联调节器的晶体管的输出通过输出焊盘发生在输出引脚上。从输出电压得到的反馈信号经由反馈焊盘发生在分压电阻器的端部。二极管连接输出板和反馈板。

78. 发明申请

US20070296353A1 Switching Regulator Control Circuit, Current Drive Circuit, Light Emitting Apparatus, and Information Terminal Apparatus 有权
标题翻译：开关稳压器控制电路，电流驱动电路，发光装置和信息终端装置
公开(公告)号：US20070296353A1
公开(公告)日：2007-12-27
申请号：US11792033
申请日：2005-10-26
申请人： Tomoyuki Ito , Isao Yamamoto
发明人： Tomoyuki Ito , Isao Yamamoto
IPC分类号： G05F1/00 , G06F1/16 , H05B39/04
CPC分类号： H05B33/0818 , G09G3/3413 , H02M3/156 , H05B33/0827
摘要： A control circuit may include a first feedback input terminal which receives the cathode terminal voltage of light-emitting elements from a current driving circuit as a feedback signal. Such an arrangement controls the ON/OFF state of a switching element such that the cathode terminal voltage approaches a predetermined voltage. A second feedback input terminal may be included to receive the anode terminal voltage of the light-emitting elements as a feedback signal. Such an arrangement controls the ON/OFF state of the switching element such that the anode terminal voltage does not exceed a predetermined threshold voltage. A feedback output terminal may be included of the current driving circuit which allows the cathode terminal voltage of the light-emitting elements to be input to a control circuit for the switching regulator as a feedback signal. The control circuit and the current driving circuit may be integrally provided in the form of separate semiconductor chips.
摘要翻译：控制电路可以包括从电流驱动电路接收发光元件的阴极端子电压作为反馈信号的第一反馈输入端子。这样的布置控制开关元件的导通/截止状态，使得阴极端子电压接近预定电压。可以包括第二反馈输入端子以将发光元件的阳极端子电压作为反馈信号。这种布置控制开关元件的ON / OFF状态，使得阳极端子电压不超过预定阈值电压。可以将电流驱动电路的反馈输出端子包括在内，使得将发光元件的阴极端子电压作为反馈信号输入到开关稳压器的控制电路。控制电路和电流驱动电路可以以单独的半导体芯片的形式一体地设置。

79. 发明授权

US07230474B2 Current drive circuit reducing VDS dependency 失效
公开(公告)号：US07230474B2
公开(公告)日：2007-06-12
申请号：US11001264
申请日：2004-12-01
申请人： Isao Yamamoto , Koichi Miyanaga
发明人： Isao Yamamoto , Koichi Miyanaga
IPC分类号： G05F1/10
CPC分类号： G05F1/56
摘要： A first transistor is provided in a first route and a second transistor is provided in a second route, the first route and the second route constituting a current mirror circuit. The sources of the transistors are grounded. In order to match VDS of the first transistor and that of the second transistor match each other, there are provided an operational amplifier receiving the drain voltages of the transistors, and a third transistor having a gate thereof connected to the output of the operational amplifier. The third transistor is provided in the first route. As a result, the current fed to the third transistor is controlled so that VDS of the first transistor and that of the second transistor match each other.

80. 发明申请

US20050258891A1 Power supply apparatus provided with regulation function 失效
标题翻译：具有调节功能的电源设备
公开(公告)号：US20050258891A1
公开(公告)日：2005-11-24
申请号：US11131860
申请日：2005-05-18
申请人： Tomoyuki Ito , Isao Yamamoto
发明人： Tomoyuki Ito , Isao Yamamoto
IPC分类号： H02M1/32 , H02M3/07 , H02M7/00
CPC分类号： H02M1/32 , H02M3/07
摘要： A voltage comparator of a power supply apparatus detects overshoot by comparing an output voltage with a threshold voltage. The power supply apparatus is provided with three switches. Upon detection of overshoot, the boosting operation of a booster circuit is suspended and the first through third switches are turned on. While the boosting operation is being suspended, the second switch operates to lower the output voltage. Concurrently, the first and third switches operate to forcibly lower an input voltage to allow the output voltage, occurring after the boosting operation is resumed, to approach a preset voltage.
摘要翻译：电源装置的电压比较器通过将输出电压与阈值电压进行比较来检测过冲。电源装置设有三个开关。当检测到过冲时，升压电路的升压操作被暂停，并且第一至第三开关导通。当升压操作暂停时，第二开关操作以降低输出电压。同时，第一和第三开关操作以强制降低输入电压，以允许在升压操作恢复之后发生的输出电压接近预置电压。

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