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1. 发明授权

US6023305A Primary color video signal output circuit 失效
标题翻译：原色视频信号输出电路
公开(公告)号：US6023305A
公开(公告)日：2000-02-08
申请号：US872300
申请日：1997-06-10
申请人： Hiroshi Ando , Nobuo Taketani , Tsuneo Matsukura , Hiroyasu Shimaoka , Hitoshi Adachi , Yoichi Kanegami , Hiroki Kinugawa
发明人： Hiroshi Ando , Nobuo Taketani , Tsuneo Matsukura , Hiroyasu Shimaoka , Hitoshi Adachi , Yoichi Kanegami , Hiroki Kinugawa
IPC分类号： G09G3/36 , G09G1/00 , G09G3/20 , G09G5/00 , G09G5/04 , G09G5/10 , H04N5/57 , H04N9/12 , H04N9/64 , H04N9/68 , H04N5/52 , H04N5/16
CPC分类号： G09G5/10 , H04N9/68 , G09G1/002 , G09G3/28 , G09G3/3611 , G09G5/04
摘要： A primary color video output circuit for limiting an input video signal. The circuit includes a clipping circuit, a reference voltage generating circuit and an amplifier. The clipping circuit limits the level of the input video signal based on a reference voltage generated by the reference voltage generating circuit. The amplifier is then used to amplify the clipped video signal.
摘要翻译：用于限制输入视频信号的原色视频输出电路。电路包括限幅电路，参考电压产生电路和放大器。限幅电路基于由参考电压产生电路产生的参考电压来限制输入视频信号的电平。然后，放大器用于放大限幅视频信号。

2. 发明授权

US5956095A Noise suppression apparatus 失效
标题翻译：噪声抑制装置
公开(公告)号：US5956095A
公开(公告)日：1999-09-21
申请号：US866883
申请日：1997-05-30
申请人： Nobuo Taketani , Hiroshi Ando , Tsuneo Matsukura , Hiroyasu Shimaoka , Hitoshi Adachi
发明人： Nobuo Taketani , Hiroshi Ando , Tsuneo Matsukura , Hiroyasu Shimaoka , Hitoshi Adachi
IPC分类号： H04N5/21 , H04N5/44 , H04N5/14
CPC分类号： H04N5/21
摘要： A noise suppression apparatus suppresses noise of a luminance signal, for example, at a fringe of area of reception in a television receiver. The noise suppression apparatus includes a tuner circuit, an intermediate frequency amplification circuit, a video detection/amplification circuit, an AGC detection/amplification circuit, an RF AGC circuit, a sound/chrominance signal separation circuit, a luminance signal processing circuit and a luminance signal noise suppression circuit.
摘要翻译：噪声抑制装置抑制例如在电视接收机的接收区域的边缘处的亮度信号的噪声。噪声抑制装置包括调谐器电路，中频放大电路，视频检测/放大电路，AGC检测/放大电路，RF AGC电路，声/色度信号分离电路，亮度信号处理电路和亮度信号噪声抑制电路。

3. 发明授权

US07046077B2 Current source circuit and amplifier using the same 有权
公开(公告)号：US07046077B2
公开(公告)日：2006-05-16
申请号：US11054796
申请日：2005-02-10
申请人： Masayuki Ozasa , Hiroyasu Shimaoka
发明人： Masayuki Ozasa , Hiroyasu Shimaoka
IPC分类号： G05F1/10 , G05F3/02
CPC分类号： G05F3/262
摘要： There is provided a current source circuit in which a outflow current of an output terminal is equal to an inflow current thereof. The current source circuit includes a first transistor group converting a reference current from a reference current source into a voltage and a first transistor having a current mirror relationship with the first transistor group, and allowing an output current to flow therethrough. An error amplifier compares a voltage generated in the first transistor group and supplied to one input terminal with a voltage supplied to the other input terminal. A second transistor is driven with an output voltage of the error amplifier. A third transistor is driven with the output voltage of the error amplifier, and allows an output current to flow therethrough in a direction opposite to the output current of the first transistor with respect to an output terminal. A second transistor group converts a current flowing through the second transistor into a voltage to supply the voltage to the other input terminal of the error amplifier.

4. 发明申请

US20050134366A1 Current source circuit and amplifier using the same 有权
标题翻译：电流源电路和放大器使用相同
公开(公告)号：US20050134366A1
公开(公告)日：2005-06-23
申请号：US11054796
申请日：2005-02-10
申请人： Masayuki Ozasa , Hiroyasu Shimaoka
发明人： Masayuki Ozasa , Hiroyasu Shimaoka
IPC分类号： G05F3/26 , H03F3/343 , H03F3/345 , H03F3/45 , G05F1/10
CPC分类号： G05F3/262
摘要： There is provided a current source circuit in which a outflow current of an output terminal is equal to an inflow current thereof. The current source circuit includes a first transistor group converting a reference current from a reference current source into a voltage and a first transistor having a current mirror relationship with the first transistor group, and allowing an output current to flow therethrough. An error amplifier compares a voltage generated in the first transistor group and supplied to one input terminal with a voltage supplied to the other input terminal. A second transistor is driven with an output voltage of the error amplifier. A third transistor is driven with the output voltage of the error amplifier, and allows an output current to flow therethrough in a direction opposite to the output current of the first transistor with respect to an output terminal. A second transistor group converts a current flowing through the second transistor into a voltage to supply the voltage to the other input terminal of the error amplifier.
摘要翻译：提供了一种电流源电路，其中输出端的流出电流等于其流入电流。电流源电路包括将基准电流源的参考电流转换为电压的第一晶体管组和与第一晶体管组具有电流反射镜关系的第一晶体管，并且允许输出电流流过其中。误差放大器将第一晶体管组中产生的电压和提供给一个输入端子的电压与提供给另一个输入端子的电压进行比较。第二晶体管由误差放大器的输出电压驱动。利用误差放大器的输出电压来驱动第三晶体管，并且允许输出电流相对于输出端子在与第一晶体管的输出电流相反的方向上流过。第二晶体管组将流过第二晶体管的电流转换成电压，以将电压提供给误差放大器的另一个输入端。

5. 发明申请

US20050225381A1 Current source circuit and amplifier using the same 有权
公开(公告)号：US20050225381A1
公开(公告)日：2005-10-13
申请号：US11147815
申请日：2005-06-08
申请人： Masayuki Ozasa , Hiroyasu Shimaoka
发明人： Masayuki Ozasa , Hiroyasu Shimaoka
IPC分类号： G05F3/26 , H03F3/343 , H03F3/345 , H03F3/45
CPC分类号： G05F3/262
摘要： There is provided a current source circuit in which a outflow current of an output terminal is equal to an inflow current thereof. The current source circuit includes a first transistor group converting a reference current from a reference current source into a voltage and a first transistor having a current mirror relationship with the first transistor group, and allowing an output current to flow therethrough. An error amplifier compares a voltage generated in the first transistor group and supplied to one input terminal with a voltage supplied to the other input terminal. A second transistor is driven with an output voltage of the error amplifier. A third transistor is driven with the output voltage of the error amplifier, and allows an output current to flow therethrough in a direction opposite to the output current of the first transistor with respect to an output terminal. A second transistor group converts a current flowing through the second transistor into a voltage to supply the voltage to the other input terminal of the error amplifier.

6. 发明授权

US07053695B2 Current source circuit and amplifier using the same 有权
标题翻译：电流源电路和放大器使用相同
公开(公告)号：US07053695B2
公开(公告)日：2006-05-30
申请号：US11147815
申请日：2005-06-08
申请人： Masayuki Ozasa , Hiroyasu Shimaoka
发明人： Masayuki Ozasa , Hiroyasu Shimaoka
IPC分类号： G05F1/10 , G05F3/02
CPC分类号： G05F3/262
摘要： There is provided a current source circuit in which a outflow current of an output terminal is equal to an inflow current thereof. The current source circuit includes a first transistor group converting a reference current from a reference current source into a voltage and a first transistor having a current mirror relationship with the first transistor group, and allowing an output current to flow therethrough. An error amplifier compares a voltage generated in the first transistor group and supplied to one input terminal with a voltage supplied to the other input terminal. A second transistor is driven with an output voltage of the error amplifier. A third transistor is driven with the output voltage of the error amplifier, and allows an output current to flow therethrough in a direction opposite to the output current of the first transistor with respect to an output terminal. A second transistor group converts a current flowing through the second transistor into a voltage to supply the voltage to the other input terminal of the error amplifier.
摘要翻译：提供了一种电流源电路，其中输出端的流出电流等于其流入电流。电流源电路包括将基准电流源的参考电流转换为电压的第一晶体管组和与第一晶体管组具有电流反射镜关系的第一晶体管，并且允许输出电流流过其中。误差放大器将第一晶体管组中产生的电压和提供给一个输入端子的电压与提供给另一个输入端子的电压进行比较。第二晶体管由误差放大器的输出电压驱动。利用误差放大器的输出电压来驱动第三晶体管，并且允许输出电流相对于输出端子在与第一晶体管的输出电流相反的方向上流过。第二晶体管组将流过第二晶体管的电流转换成电压，以将电压提供给误差放大器的另一个输入端。

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