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1. 发明授权

US08569962B2 LED driver circuit and LED driver system 失效
标题翻译： LED驱动电路和LED驱动系统
公开(公告)号：US08569962B2
公开(公告)日：2013-10-29
申请号：US13233291
申请日：2011-09-15
申请人： Hideyuki Hagino , Masahiro Shimozono , Shinichi Kiyota
发明人： Hideyuki Hagino , Masahiro Shimozono , Shinichi Kiyota
IPC分类号： H05B37/00
CPC分类号： G09G3/3413 , G09G2320/064 , G09G2330/04
摘要： A withstand voltage of the LED driver circuit is set to be lower than an LED power supply voltage of the power supply and be higher than a first voltage value obtained by subtracting a voltage drop across whole of the LEDs connected in series caused by the second constant current from the LED power supply voltage.When raising a luminous intensity of the LEDs, in response to the control signal, the control circuit controls the switch circuit to bring about conduction between the LED drive terminal and the first switch terminal to let the first constant current flow through the LEDs.When lowering the luminous intensity of the LEDs, in response to the control signal, the control circuit controls the switch circuit to bring about conduction between the LED drive terminal and the second switch terminal to let the second constant current flow through the LEDs.
摘要翻译： LED驱动器电路的耐压设定为低于电源的LED电源电压，并且高于通过从第二常数减去串联连接的整个LED的电压降而获得的第一电压值电流从LED电源电压。当提高LED的发光强度时，响应于控制信号，控制电路控制开关电路以使LED驱动端子和第一开关端子之间导通，以使第一恒定电流流过LED。当降低LED的发光强度时，响应于控制信号，控制电路控制开关电路以在LED驱动端子和第二开关端子之间导通，以使第二恒定电流流过LED。

2. 发明授权

US5523798A Circuit for automatically adjusting signal separation in Y/C seperation comb filter 失效
标题翻译： Y / C分离梳状滤波器自动调节信号分离电路
公开(公告)号：US5523798A
公开(公告)日：1996-06-04
申请号：US216418
申请日：1994-03-23
申请人： Hideyuki Hagino , Mitsumo Kawano
发明人： Hideyuki Hagino , Mitsumo Kawano
IPC分类号： H04N9/78 , H04N9/64
CPC分类号： H04N9/78
摘要： For realizing more accurately a signal separation of a luminance signal and a chrominance signal, a signal separation automatic adjusting circuit in a YC separation comb filter includes an amplitude adjusting loop for detecting a level of a color signal component remaining in the separated luminance signal to adjust amplitudes in an image signal and a 1H delayed image signal, a first phase adjusting loop for adjusting phases of the image signal and the 1H delayed image signal which are respectively inputted into an adder, and a second phase adjusting loop for adjusting phases of the image signal and the 1H delayed image signal in the manner of suppressing the color signal remaining in the luminance signal. According to the constitution, it is possible to prevent an intermix of the color signal component into the luminance, thereby obtaining the YC separation automatic adjusting circuit having a high accuracy.
摘要翻译：为了更精确地实现亮度信号和色度信号的信号分离，YC分离梳状滤波器中的信号分离自动调整电路包括用于检测分离的亮度信号中残留的彩色信号分量的电平的幅度调整回路，以调整图像信号和1H延迟图像信号的振幅，用于调整分别输入加法器的图像信号和1H延迟图像信号的相位的第一相位调整回路和用于调整图像的相位的第二相位调整回路信号和1H延迟图像信号，以抑制亮度信号中剩余的彩色信号。根据该结构，可以防止色信号分量的混合成为亮度，从而获得高精度的YC分离自动调整电路。

3. 发明授权

US4571508A Differential switch circuit 失效
标题翻译：差分开关电路
公开(公告)号：US4571508A
公开(公告)日：1986-02-18
申请号：US426759
申请日：1982-09-29
申请人： Takashi Koga , Hideyuki Hagino
发明人： Takashi Koga , Hideyuki Hagino
IPC分类号： H03K17/00 , H03K5/15 , H03K17/30 , H03K17/60 , H03K17/62 , H03K5/153
CPC分类号： H03K5/15073 , H03K17/30 , H03K17/603 , H03K17/6278
摘要： A differential switch circuit having an input circuit being responsive to an input signal for providing switch instructions corresponding to the level of the input signal, a bias circuit coupled to the input circuit for generating bias signals respectively corresponding to the switch instructions, and a differential transistor circuit coupled to the bias circuit for providing a plurality of outputs in accordance with the potential of each of the bias signals. The input circuit includes comparators which respond to three levels of the input signal and provide the switch instructions in a manner so that the switch instructions respectively correspond to the levels of the input signal. The bias circuit includes three bias sources. Each of the bias sources generates one of the bias signals according to the switch instructions. The differential transistor circuit includes a current source and three switch transistors each of which emitter is coupled to the current source, each of which base receives one of the bias signals, and each of which collector provides one of the outputs.
摘要翻译：一种差分开关电路，其具有响应输入信号的输入电路，用于提供与输入信号的电平相对应的开关指令;耦合到输入电路的偏置电路，用于产生分别对应于开关指令的偏置信号;以及差分晶体管耦合到偏置电路的电路，用于根据每个偏置信号的电位提供多个输出。输入电路包括比较器，其对输入信号的三个电平进行响应，并以使得开关指令分别对应于输入信号的电平的方式提供开关指令。偏置电路包括三个偏置源。每个偏置源根据开关指令产生偏置信号之一。差分晶体管电路包括电流源和三个开关晶体管，每个开关晶体管的每个发射极耦合到电流源，其中每一个基极接收偏置信号中的一个，并且其中的每一个收集器提供输出之一。

4. 发明授权

US5122867A Video signal processing circuit having a band pass filter following a delay circuit in a comb filter arrangement 失效
标题翻译：具有随机滤波器布置的延迟电路的带通滤波器的视频信号处理电路
公开(公告)号：US5122867A
公开(公告)日：1992-06-16
申请号：US586219
申请日：1990-09-21
申请人： Hideyuki Hagino
发明人： Hideyuki Hagino
IPC分类号： H04N9/78
CPC分类号： H04N9/78
摘要： This invention discloses a video signal processing circuit of a comb filter arrangement for separating and extracting a luminance signal and a chrominance signal from an input video signal including the luminance signal and the chrominance signal. The input video signal is delayed by a delay circuit by a 1H period, and a 1H-delayed signal is supplied to a band-pass filter. The signal having passed through the band-pass filter is added to the original input video signal by an adding circuit. An output from the adding circuit is supplied to a trap circuit and chrominance signal components are eliminated. Meanwhile, the signal having passed through the band-pass filter is eliminated from the input video signal by a subtracting circuit, and an amplitude of an output from the subtracting circuit is attenuated by an attenuating circuit. A signal corresponding to a period corresponding to an amplitude difference in the chrominance signal between the signal having passed through the band-pass filter and the original input video signal before delay is generated by a switching signal generating circuit. A first switching circuit switches the outputs from the adding circuit and the trap circuit, and a second switching circuit switches the original input video signal and an output from the attenuating circuit.

5. 发明授权

US5119179A Video signal processing circuit for extracting a chroma signal from a luminous signal 失效
标题翻译：用于从荧光信号中提取色谱信号的视频信号处理电路
公开(公告)号：US5119179A
公开(公告)日：1992-06-02
申请号：US582078
申请日：1990-09-14
申请人： Hideyuki Hagino
发明人： Hideyuki Hagino
IPC分类号： H04N9/83 , H04N9/87
CPC分类号： H04N9/83 , H04N9/87
摘要： A video signal processing circuit for reproducing an FM video signal. A video reproduction signal output from a magnetic head is supplied to a low-pass filter, which extracts a chroma signal. The video reproduction signal is also supplied to a chroma signal removing circuit through a high-pass filter of low degree and sharpness. The chroma signal removing circuit removes the chroma signal component. The output of the chroma signal removing circuit is amplitude-limited to a predetermined degree by a limiter, and then supplied to a demodulator which extracts a luminance signal.

6. 发明申请

US20120236211A1 Display, Information Transmission Method and Information Communication System 审中-公开
标题翻译：显示，信息传输方式和信息通信系统
公开(公告)号：US20120236211A1
公开(公告)日：2012-09-20
申请号：US13233294
申请日：2011-09-15
申请人： Hideyuki Hagino
发明人： Hideyuki Hagino
IPC分类号： H04N5/66
CPC分类号： G09G3/36 , G09G3/3413 , G09G2310/0237 , G09G2320/0261 , G09G2340/0435
摘要： According to one embodiment, a display has an indicator, an information extractor, and an indicator controller. The indicator is configured to irradiate first visible light indicative of an operation status of the display The information extractor is configured to extract at least a video signal and additional information from an input signal. The indicator controller is configured to modulate the first visible light with a frequency higher than a frame rate of the video signal according to the additional information.
摘要翻译：根据一个实施例，显示器具有指示符，信息提取器和指示符控制器。指示器被配置为照射指示显示器的操作状态的第一可见光。信息提取器被配置为从输入信号中提取至少一个视频信号和附加信息。指示器控制器被配置为根据附加信息调制具有高于视频信号的帧速率的频率的第一可见光。

7. 发明授权

US6148137A Video tape reproducing apparatus capable of preventing influence of noise-bar 失效
标题翻译：能够防止噪声条影响的录像带再生装置
公开(公告)号：US6148137A
公开(公告)日：2000-11-14
申请号：US821301
申请日：1997-03-20
申请人： Takahiro Kusano , Hideyuki Hagino
发明人： Takahiro Kusano , Hideyuki Hagino
IPC分类号： H04N5/93 , G11B20/06 , H04N5/783 , H04N5/94 , H04N9/83 , H04N9/882
CPC分类号： H04N9/882 , H04N5/783 , H04N9/83
摘要： A noise-bar period detection circuit detects a noise bar period in response to a low-frequency carrier wave FM signal contained in a signal reproduced by a video head when a video tape is reproduced in a special mode so as to output a noise-bar detection signal. A reproduced-signal processing circuit including a clamp circuit, an AGC circuit and the like maintains normal voltage immediately before the noise bar period in response to the noise-bar detection signal output from the noise-bar period detection circuit. Therefore, restoration to a normal state can be performed immediately after the noise bar period.
摘要翻译：噪声条周期检测电路响应于当以特殊模式再现录像带时由视频头再现的信号中包含的低频载波FM信号来检测噪声条周期，以便输出噪声条检测信号。包括钳位电路，AGC电路等的再现信号处理电路响应于从噪声条周期检测电路输出的噪声条检测信号，在噪声条周期之前保持正常电压。因此，可以在噪声条周期之后立即执行恢复到正常状态。

8. 发明授权

US5448305A Comb filter capable of reducing cross-color phenomena and noises 失效
标题翻译：梳状滤波器能够减少交叉色现象和噪声
公开(公告)号：US5448305A
公开(公告)日：1995-09-05
申请号：US219347
申请日：1994-03-29
申请人： Hideyuki Hagino
发明人： Hideyuki Hagino
IPC分类号： H04N9/78 , H04N9/79
CPC分类号： H04N9/7908
摘要： An input of a charge coupled device (CCD) delay element is an additional signal of a reproduced luminance signal and a reproduced chrominance signal, while an output of the CCD delay element is separated by an LPF and a BPF into a delayed luminance signal and a delayed chrominance signal, thereby constituting a comb filter by using the input signal before an addition and delayed/reproduced signals. Accordingly, it is unnecessary to provide a filter for limiting a band width, which is inserted into a main signal path. Furthermore, since it is possible to constitute a comb filter which does not narrow a signal band width of the reproduced luminance signal and the reproduced chrominance signal, there can be provided a comb filter for removing a cross-talk and noises and which does not narrow a signal band width of the luminance signal and the chrominance signal.
摘要翻译：电荷耦合器件（CCD）延迟元件的输入是再现的亮度信号和再现的色度信号的附加信号，而CCD延迟元件的输出由LPF和BPF分离成延迟的亮度信号，延迟色度信号，从而通过在加法和延迟/再现信号之前使用输入信号来构成梳状滤波器。因此，不需要设置用于限制插入到主信号路径中的带宽的滤波器。此外，由于可以构成不缩小再现的亮度信号和再现的色度信号的信号带宽的梳状滤波器，因此可以提供一种梳状滤波器，用于消除串扰和噪声，并且不窄亮度信号和色度信号的信号带宽。

9. 发明授权

US5150220A Video signal-processing circuit for outputting a drop out signal superimposed on a correlation/noncorrelation signal 失效
标题翻译：用于输出在相关/非相关信号上超越的信号的视频信号处理电路
公开(公告)号：US5150220A
公开(公告)日：1992-09-22
申请号：US582079
申请日：1990-09-14
申请人： Hideyuki Hagino
发明人： Hideyuki Hagino
IPC分类号： H04N5/93 , G11B20/06 , H04N5/94 , H04N9/79 , H04N9/88
CPC分类号： H04N9/88 , H04N9/79 , H04N9/7908
摘要： A video reproduction signal-processing circuit is an integrated circuit and is incorporated in a video tape recorder. In this integrated circuit, a dropout-detecting circuit generates a dropout signal, and a limiter circuit and a wave-shaping circuit jointly output a noncorrelation/correlation signal. The dropout signal and the noncorrelation/correlation signal are first added together by an adder circuit, and are then output from the integrated circuit through a single output terminal.

10. 发明授权

US5124592A Active filter 失效
标题翻译：主动过滤器
公开(公告)号：US5124592A
公开(公告)日：1992-06-23
申请号：US655547
申请日：1991-02-13
申请人： Hideyuki Hagino
发明人： Hideyuki Hagino
IPC分类号： H03H11/04 , H03H11/12
CPC分类号： H03H11/0422
摘要： An input signal is supplied to the non-inverting input terminal of a current differential amplifier. A capacitor is connected between the output terminal of the current differential amplifier and a power source and the capacitor stores charges according to an output signal of the current differential amplifier. The input signal and an output signal of the current differential amplifier are supplied to resistors via buffer circuits and signals divided by the resistors are added together by a buffer circuit and output from an output terminal and at the same time fed back to the inverting input terminal of the current differential amplifier.

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