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1. 发明授权

US07437084B2 Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method 失效
标题翻译：红外辐射接收电路，电子设备和红外辐射接收方法
公开(公告)号：US07437084B2
公开(公告)日：2008-10-14
申请号：US10968968
申请日：2004-10-21
申请人： Naruichi Yokogawa , Hiroaki Itoh , Takeshi Nishino , Ryosuke Kawashima
发明人： Naruichi Yokogawa , Hiroaki Itoh , Takeshi Nishino , Ryosuke Kawashima
IPC分类号： H04B10/06
CPC分类号： H04B10/11
摘要： A receiving circuit stops a one shot timer from generating an output signal immediately after the output signal is outputted to an external entity until a predetermined stretch time elapses. With this arrangement, the receiving circuit will not generate a new output signal even if (i) noises generated by a voltage fluctuation of the output signal appear on an amplified signal immediately after the output signal is outputted (at the end of the output), and (ii) the value of the amplified signal exceeds a threshold value. Therefore, the receiving circuit can make sure that an unnecessary output signal will not be generated due to the noises.
摘要翻译：接收电路在输出信号输出到外部实体之后立即停止单触发定时器产生输出信号，直到经过预定的延伸时间。通过这种布置，即使（i）输出信号的电压波动产生的噪声出现在输出信号紧接在输出信号（输出结束）之后的放大信号中，接收电路也不会产生新的输出信号，和（ii）放大信号的值超过阈值。因此，接收电路可以确保由于噪声而不会产生不必要的输出信号。

2. 发明申请

US20050089337A1 Infrared transmitter circuit and electronic device 失效
标题翻译：红外发射机电路和电子设备
公开(公告)号：US20050089337A1
公开(公告)日：2005-04-28
申请号：US10968884
申请日：2004-10-21
申请人： Hiroaki Itoh , Naruichi Yokogawa , Takeshi Nishino , Ryosuke Kawashima
发明人： Hiroaki Itoh , Naruichi Yokogawa , Takeshi Nishino , Ryosuke Kawashima
IPC分类号： H03K17/78 , H04N5/00 , H04B10/04
CPC分类号： H04B10/1141
摘要： An infrared transmitter circuit causes an output current to flow to a light emission diode via a current mirror circuit constituted of three transistors by using a current supplied from a power source circuit, so that the light emission diode emits light. When a voltage V1 varied by charging a capacitor with a current flowing from the power source circuit exceeds a reference voltage (voltage V2), an output of a comparator resets a D flip-flop, so that an output of the D flip-flop varies to “0”. Thus, an output of a NAND gate to which that output and a transmission signal are inputted causes a transistor (N-channel FET) to turn ON so as to stop operation of the current mirror circuit, and causes a transistor (P-channel FET) to turn OFF so as to cut a connection between the power source circuit and a power source line. Thus, it is possible to reduce power consumption in operation of a protection circuit which stops supplying the output current to the light emission diode.
摘要翻译：红外发射电路通过使用从电源电路提供的电流，通过由三个晶体管构成的电流镜电路使输出电流流到发光二极管，使得发光二极管发光。当通过从电源电路流过的电流对电容器充电而电压V 1超过参考电压（电压V 2）时，比较器的输出复位D触发器，使得D触发器的输出，翻牌变为“0”。因此，输入和发送信号的NAND门的输出使得晶体管（N沟道FET）导通，以停止电流镜电路的工作，并且使晶体管（P沟道FET ）以切断电源电路和电源线之间的连接。因此，可以在停止向发光二极管供给输出电流的保护电路的工作中降低功耗。

3. 发明授权

US07359649B2 Infrared transmitter circuit and electronic device 失效
标题翻译：红外发射机电路和电子设备
公开(公告)号：US07359649B2
公开(公告)日：2008-04-15
申请号：US10968884
申请日：2004-10-21
申请人： Hiroaki Itoh , Naruichi Yokogawa , Takeshi Nishino , Ryosuke Kawashima
发明人： Hiroaki Itoh , Naruichi Yokogawa , Takeshi Nishino , Ryosuke Kawashima
IPC分类号： H04B10/04 , H01S3/00
CPC分类号： H04B10/1141
摘要： An infrared transmitter circuit causes an output current to flow to a light emission diode via a current mirror circuit constituted of three transistors by using a current supplied from a power source circuit, so that the light emission diode emits light. When a voltage V1 varied by charging a capacitor with a current flowing from the power source circuit exceeds a reference voltage (voltage V2), an output of a comparator resets a D flip-flop, so that an output of the D flip-flop varies to “0”. Thus, an output of a NAND gate to which that output and a transmission signal are inputted causes a transistor (N-channel FET) to turn ON so as to stop operation of the current mirror circuit, and causes a transistor (P-channel FET) to turn OFF so as to cut a connection between the power source circuit and a power source line. Thus, it is possible to reduce power consumption in operation of a protection circuit which stops supplying the output current to the light emission diode.
摘要翻译：红外发射电路通过使用从电源电路提供的电流，通过由三个晶体管构成的电流镜电路使输出电流流到发光二极管，使得发光二极管发光。当通过从电源电路流过的电流对电容器充电而电压V 1超过参考电压（电压V 2）时，比较器的输出复位D触发器，使得D触发器的输出，翻牌变为“0”。因此，输入和发送信号的NAND门的输出使得晶体管（N沟道FET）导通，以停止电流镜电路的工作，并且使晶体管（P沟道FET ）以切断电源电路和电源线之间的连接。因此，可以在停止向发光二极管供给输出电流的保护电路的工作中降低功耗。

4. 发明申请

US20050087688A1 Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method 失效
标题翻译：红外辐射接收电路，电子设备和红外辐射接收方法
公开(公告)号：US20050087688A1
公开(公告)日：2005-04-28
申请号：US10968968
申请日：2004-10-21
申请人： Naruichi Yokogawa , Hiroaki Itoh , Takeshi Nishino , Ryosuke Kawashima
发明人： Naruichi Yokogawa , Hiroaki Itoh , Takeshi Nishino , Ryosuke Kawashima
IPC分类号： H03F1/26 , G01J1/44 , G01J5/00 , H03F3/08 , H03K5/1252 , H04B10/11 , H04B10/114 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/524 , H04B10/58 , H04B10/60 , H04B10/69 , H04L25/02
CPC分类号： H04B10/11
摘要： A receiving circuit stops a one shot timer from generating an output signal immediately after the output signal is outputted to an external entity until a predetermined stretch time elapses. With this arrangement, the receiving circuit will not generate a new output signal even if (i) noises generated by a voltage fluctuation of the output signal appear on an amplified signal immediately after the output signal is outputted (at the end of the output), and (ii) the value of the amplified signal exceeds a threshold value. Therefore, the receiving circuit can make sure that an unnecessary output signal will not be generated due to the noises.
摘要翻译：接收电路在输出信号输出到外部实体之后立即停止单触发定时器产生输出信号，直到经过预定的延伸时间。通过这种布置，即使（i）输出信号的电压波动产生的噪声出现在输出信号紧接在输出信号（输出结束）之后的放大信号中，接收电路也不会产生新的输出信号，和（ii）放大信号的值超过阈值。因此，接收电路可以确保由于噪声而不会产生不必要的输出信号。

5. 发明授权

US07061303B2 Photoelectric leak current compensating circuit and optical signal circuit using same 失效
标题翻译：光电漏电补偿电路和光信号电路采用相同方式
公开(公告)号：US07061303B2
公开(公告)日：2006-06-13
申请号：US10733376
申请日：2003-12-12
申请人： Takahiro Inoue , Naruichi Yokogawa , Ryosuke Kawashima
发明人： Takahiro Inoue , Naruichi Yokogawa , Ryosuke Kawashima
IPC分类号： H03K17/60
CPC分类号： G05F3/265
摘要： When a current mirror circuit is composed of transistors that inevitably form a parasitic photodiode between an epitaxial layer and a substrate layer because of structure of an integrated circuit, a photocurrent increases in proportional to an area of the epitaxial layer. Thus, the area of the epitaxial layer is adjusted in accordance with a current ratio of the current mirror, so as to allow the photocurrent to affect equally on both input and output sides of the current mirror circuit, i.e., so as to cancel the photocurrent. With this, in a current mirror circuit provided in an integrated circuit, it is possible to eliminate the influence of the photocurrent, without considerably increasing an element area or taking special measures to shield light.
摘要翻译：当由于集成电路的结构，电流镜电路由不可避免地在外延层和衬底层之间形成寄生光电二极管的晶体管组成时，光电流与外延层的面积成比例地增加。因此，根据电流镜的电流比来调整外延层的面积，以便允许光电流在电流镜电路的输入和输出侧均等地影响，即抵消光电流。由此，在集成电路中提供的电流镜电路中，可以消除光电流的影响，而不会显着增加元件面积或者采取特别的措施来屏蔽光。

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