公开(公告)号：US20120142292A1

公开(公告)日：2012-06-07

申请号：US13370101

申请日：2012-02-09

申请人： Jun DEGUCHI ,  Shouhei Kousai ,  Daisuke Miyashita

发明人： Jun DEGUCHI ,  Shouhei Kousai ,  Daisuke Miyashita

IPC分类号： H04B1/04

CPC分类号： H04B1/0053

摘要： A wireless communication apparatus includes a local oscillator that generates a plurality of LO (Local Oschillation) signals corresponding to frequencies of a plurality of input RF (Radio Frequency) signals, an accumulator that accumulates the plurality of LO signals generated by the local oscillator to generate an accumulated signal, a mixer that mixes the plurality of RF signals and the accumulated signal generated by the accumulator and to generate a plurality of base band signals, and a first signal processing unit that executes a signal process with respect to the plurality of base band signals generated by the mixer.

摘要翻译： 无线通信装置包括本地振荡器，其产生对应于多个输入RF（射频）信号的频率的多个LO（局部烧灼）信号，累加器，其累积由本地振荡器产生的多个LO信号，以产生 累积信号，混合多个RF信号的混频器和由累加器产生的累加信号并产生多个基带信号;以及第一信号处理单元，其执行关于多个基带的信号处理 由混合器产生的信号。

公开(公告)号：US20120135700A1

公开(公告)日：2012-05-31

申请号：US13369536

申请日：2012-02-09

申请人： Shouhei KOUSAI ,  Daisuke MIYASHITA ,  Jun DEGUCHI

发明人： Shouhei KOUSAI ,  Daisuke MIYASHITA ,  Jun DEGUCHI

IPC分类号： H04B1/16 ,  H03K5/04

CPC分类号： H03D7/125

摘要： A frequency converting circuit that outputs an output signal obtained by mixing a first input signal and a second input signal, has: a first input terminal to which the first input signal is input; a second input terminal to which the second input signal is input; an output terminal from which the output signal is output; a frequency converting element that has a first input part connected to the first input terminal and an output part connected to the output terminal, restricts the signal input to the first input part according to a signal input to a second input part and outputs the restricted signal to the output part; and a pulse controlling circuit that receives the second input signal via the second input terminal and outputs a pulse signal obtained by restricting the pulses of the second input signal to the second input part of the frequency converting element.

摘要翻译： 输出通过混合第一输入信号和第二输入信号而获得的输出信号的频率转换电路具有：输入第一输入信号的第一输入端; 输入第二输入信号的第二输入端; 输出信号输出的输出端子; 具有连接到第一输入端子的第一输入部分和连接到输出端子的输出部分的频率转换元件根据输入到第二输入部分的信号来限制输入到第一输入部分的信号，并输出受限信号 到输出部分; 以及脉冲控制电路，其经由所述第二输入端子接收所述第二输入信号，并将通过将所述第二输入信号的脉冲限制到所述频率转换元件的所述第二输入部分而获得的脉冲信号。

公开(公告)号：US20090253396A1

公开(公告)日：2009-10-08

申请号：US12407957

申请日：2009-03-20

申请人： Jun DEGUCHI ,  Shouhei Kousai ,  Daisuke Miyashita

发明人： Jun DEGUCHI ,  Shouhei Kousai ,  Daisuke Miyashita

IPC分类号： H04B1/16 ,  H04B1/06

CPC分类号： H04B1/0053

摘要： A wireless communication apparatus includes a local oscillator that generates a plurality of LO (Local Oschillation) signals corresponding to frequencies of a plurality of input RF (Radio Frequency) signals, an accumulator that accumulates the plurality of LO signals generated by the local oscillator to generate an accumulated signal, a mixer that mixes the plurality of RF signals and the accumulated signal generated by the accumulator and to generate a plurality of base band signals, and a first signal processing unit that executes a signal process with respect to the plurality of base band signals generated by the mixer.

摘要翻译： 无线通信装置包括本地振荡器，其产生对应于多个输入RF（射频）信号的频率的多个LO（局部烧灼）信号，累加器，其累积由本地振荡器产生的多个LO信号，以产生 累加信号，混合多个RF信号的混频器和由累加器产生的累加信号并产生多个基带信号;以及第一信号处理单元，其对多个基带进行信号处理 由混频器产生的信号。

公开(公告)号：US20130252559A1

公开(公告)日：2013-09-26

申请号：US13599413

申请日：2012-08-30

申请人： Jun DEGUCHI ,  Shouhei Kousai ,  Yousuke Hagiwara ,  Masamichi Suzuki ,  Atsuhiro Kinoshita ,  Takao Marukame

发明人： Jun DEGUCHI ,  Shouhei Kousai ,  Yousuke Hagiwara ,  Masamichi Suzuki ,  Atsuhiro Kinoshita ,  Takao Marukame

IPC分类号： H03M1/66

CPC分类号： H03M1/66 ,  H03M1/1061 ,  H03M1/745

摘要： In general, according to one embodiment, a DA converter configured to convert a digital signal comprising n (n>1) bits to an analog current to output the analog current from an output terminal, includes n voltage-current converters. Each of them corresponds to each bit of the digital signal and is configured to generate a current depending on the corresponding bit. A k-th (k is an integer of 0 to n−1) voltage-current converter includes a first transistor whose threshold voltage is adjustable. The first transistor includes a semiconductor substrate, a first diffusion region, a second diffusion region, an insulating film, a charge accumulating film, and a gate.

摘要翻译： 通常，根据一个实施例，配置成将包括n（n> 1）位的数字信号转换为模拟电流以从输出端输出模拟电流的DA转换器包括n个电压 - 电流转换器。 它们中的每一个对应于数字信号的每个位，并且被配置为根据相应的位产生电流。 第k（k是0到n-1的整数）电压 - 电流转换器包括阈值电压可调的第一晶体管。 第一晶体管包括半导体衬底，第一扩散区，第二扩散区，绝缘膜，电荷累积膜和栅极。

公开(公告)号：US20100109781A1

公开(公告)日：2010-05-06

申请号：US12560828

申请日：2009-09-16

申请人： Jun DEGUCHI ,  Daisuke Miyashita

发明人： Jun DEGUCHI ,  Daisuke Miyashita

IPC分类号： H03F3/04

CPC分类号： H03F3/45183 ,  H03F1/30 ,  H03F3/45632 ,  H03F2200/453 ,  H03F2203/45244 ,  H03F2203/45508

摘要： A semiconductor integrated circuit device includes: an amplifier circuit which respectively has one or more input terminals and one or more output terminals; a replica circuit which has the same DC characteristics as those of the amplifier circuit; a reference voltage generation circuit which is connected to a bias terminal of the replica circuit, and which generates a predetermined reference voltage at the bias terminal; and a feedback circuit which takes a difference between the reference voltage generated at the bias terminal of the replica circuit and the voltage generated at a bias terminal of the amplifier circuit, and which performs feedback control by providing negative feedback of the difference to the bias terminal of the amplifier circuit so that the voltage generated at the bias terminal of the amplifier circuit is made equal to the reference voltage generated at the bias terminal of the replica circuit.

摘要翻译： 一种半导体集成电路器件，包括：分别具有一个或多个输入端子和一个或多个输出端子的放大器电路; 具有与放大电路相同的DC特性的复制电路; 参考电压产生电路，其连接到所述复制电路的偏置端子，并且在所述偏置端子处产生预定的参考电压; 以及反馈电路，其将复制电路的偏置端子处产生的参考电压与在放大器电路的偏置端子处产生的电压之间产生差异，并且通过向偏置端子提供差分的负反馈来执行反馈控制 使得在放大器电路的偏置端产生的电压等于在复制电路的偏置端产生的参考电压。

公开(公告)号：US20130242201A1

公开(公告)日：2013-09-19

申请号：US13599113

申请日：2012-08-30

申请人： Jun DEGUCHI ,  Hideaki Majima ,  Yuichi Nakamura ,  Hisao Kawasato ,  Nau Ozaki ,  Toshiyuki Yamagishi

发明人： Jun DEGUCHI ,  Hideaki Majima ,  Yuichi Nakamura ,  Hisao Kawasato ,  Nau Ozaki ,  Toshiyuki Yamagishi

IPC分类号： H04N5/40

CPC分类号： H04N5/40 ,  H04N7/025 ,  H04N7/08 ,  H04N21/41407 ,  H04N21/4722

摘要： According to one embodiment, a transmission system includes a transmitter, and a receiver. The transmitter includes one or a plurality of light sources, a modulator, a first driver, a display, and a second driver. The one or a plurality of light sources is configured to emit a visible light whose light amount corresponds to a first drive signal. The modulator is configured to, according to transmission data to be transmitted from the transmitter to the receiver, modulate a first luminance signal indicative of an amount of the light the light source is configured to emit, to generate a second luminance signal. The first driver is configured to generate the first drive signal based on the second luminance signal. A mean of the second luminance signal during one frame in the input video signal is substantially equal to a value of the first luminance signal in the frame.

摘要翻译： 根据一个实施例，传输系统包括发射机和接收机。 发射机包括一个或多个光源，调制器，第一驱动器，显示器和第二驱动器。 一个或多个光源被配置为发射其光量对应于第一驱动信号的可见光。 调制器被配置为根据要从发射机发射到接收机的传输数据，调制指示光源被配置为发射的光量的第一亮度信号，以产生第二亮度信号。 第一驱动器被配置为基于第二亮度信号产生第一驱动信号。 输入视频信号中的一帧期间的第二亮度信号的平均值基本上等于帧中第一亮度信号的值。

公开(公告)号：US20120112840A1

公开(公告)日：2012-05-10

申请号：US13354757

申请日：2012-01-20

申请人： Jun DEGUCHI ,  Naoki Kobayashi

发明人： Jun DEGUCHI ,  Naoki Kobayashi

IPC分类号： H03F3/04 ,  H03F1/22

CPC分类号： H03F3/3028 ,  H03F3/45179 ,  H03F3/45183 ,  H03F3/505 ,  H03F2200/453 ,  H03F2203/45236 ,  H03F2203/45244 ,  H03F2203/45394 ,  H03F2203/45508 ,  H03F2203/45528 ,  H03F2203/45544 ,  H03F2203/45696 ,  H03F2203/45698 ,  H03F2203/45702

摘要： A semiconductor integrated circuit device constituting an inverting amplifier employs a cascode current source as a current source. In the semiconductor integrated circuit device, a high-potential-side transistor of the cascode current source and a low-potential-side transistor constituting an amplification portion are shared. The configuration can not only make an output impedance of the cascode current source high and improve current source characteristics but also make a minimum potential at a minimum potential point of the amplification portion low and ensure a sufficient power supply voltage margin.

摘要翻译： 构成反相放大器的半导体集成电路器件采用共源共栅电流源作为电流源。 在半导体集成电路器件中，共享共源共栅电流源的高电位侧晶体管和构成放大部分的低电位侧晶体管。 该配置不仅可以使共源共栅电流源的输出阻抗高，并且提高电流源特性，而且使放大部分的最小电位处的最小电位降低，并确保足够的电源电压裕度。

公开(公告)号：US20120001696A1

公开(公告)日：2012-01-05

申请号：US13231562

申请日：2011-09-13

申请人： Jun DEGUCHI ,  Naoki KOBAYASHI

发明人： Jun DEGUCHI ,  Naoki KOBAYASHI

IPC分类号： H03F3/16

CPC分类号： H03F3/3028 ,  H03F3/45179 ,  H03F3/45183 ,  H03F3/505 ,  H03F2200/453 ,  H03F2203/45236 ,  H03F2203/45244 ,  H03F2203/45394 ,  H03F2203/45508 ,  H03F2203/45528 ,  H03F2203/45544 ,  H03F2203/45696 ,  H03F2203/45698 ,  H03F2203/45702

摘要： A semiconductor integrated circuit device constituting an inverting amplifier employs a cascode current source as a current source. In the semiconductor integrated circuit device, a high-potential-side transistor of the cascode current source and a low-potential-side transistor constituting an amplification portion are shared. The configuration can not only make an output impedance of the cascode current source high and improve current source characteristics but also make a minimum potential at a minimum potential point of the amplification portion low and ensure a sufficient power supply voltage margin.