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    • 2. 发明授权
    • Method of controlling frame memory, memory control circuit, and image processing apparatus including the memory control circuit
    • 控制帧存储器的方法,存储器控制电路和包括存储器控制电路的图像处理装置
    • US08194090B2
    • 2012-06-05
    • US12318994
    • 2009-01-14
    • Shinsuke Sato
    • Shinsuke Sato
    • G09G5/36G06F12/00G06F12/06
    • G09G3/3611G09G5/393G09G5/395G09G2340/16G09G2360/128
    • Various exemplary embodiments provide methods of controlling frame memory, memory control circuits, and image processing apparatuses including the memory control circuits. Data representing values of pixels constituting each of a plurality of frames are received in an order of the frames, and data representing values of pixels constituting a previous frame are read from the frame memory and data representing values of pixels constituting a next frame are written to the frame memory. By reading first data representing values of a portion of the pixels constituting the previous frame from the frame memory before receiving of data representing values of pixels constituting the next frame starts, a delay time before starting to output data representing values of pixels of the previous frame can be shortened.
    • 各种示例性实施例提供了控制帧存储器,存储器控制电路和包括存储器控制电路的图像处理装置的方法。 以帧的顺序接收表示构成多个帧的像素的值的数据,从帧存储器读出表示构成前一帧的像素的数据,表示构成下一帧的像素的值的数据被写入 帧存储器。 在接收到表示构成下一帧的像素的值的数据的开始之前,通过从帧存储器读取表示构成前一帧的一部分像素的值的第一数据开始,开始输出表示前一帧的像素值的数据的延迟时间 可以缩短。
    • 3. 发明授权
    • Color conversion circuit and method of color conversion using interpolation from conversion coefficients some of which are substituted
    • 颜色转换电路和颜色转换方法使用插值从其中一些被替换的转换系数
    • US08164597B2
    • 2012-04-24
    • US12078444
    • 2008-03-31
    • Yoshinori Watanabe
    • Yoshinori Watanabe
    • G09G5/02
    • G09G5/02G09G2340/06
    • Exemplary embodiments of color conversion circuits and color conversion methods convert input color data into output color data. The input color data is positioned in a three-dimensional color space, which is divided into a plurality of unit cubes each having a fixed dimension. The input color data is converted by performing interpolations using conversion coefficients at vertexes of the unit cube within which the input color data is positioned. When the input color data is positioned on a gray axis of the color space, a substitution circuit substitutes some of the conversion coefficients such that the interpolation becomes a linear interpolation. As a result, it is assured that input color data positioned on the gray axis is converted to gray output color data.
    • 颜色转换电路和颜色转换方法的示例性实施例将输入颜色数据转换成输出颜色数据。 输入颜色数据被定位在三维颜色空间中,其被分成多个单位立方体,每个单位立方体具有固定的尺寸。 通过使用在输入颜色数据所在的单位立方体的顶点处的转换系数进行内插来转换输入颜色数据。 当输入颜色数据位于颜色空间的灰色轴上时,替代电路将一些转换系数代替,使得插值成为线性内插。 结果,确保位于灰色轴上的输入颜色数据被转换为灰色输出颜色数据。
    • 5. 发明申请
    • Method and apparatus for receiving burst data without using external detection signal
    • 用于在不使用外部检测信号的情况下接收脉冲串数据的方法和装置
    • US20110001531A1
    • 2011-01-06
    • US12801835
    • 2010-06-28
    • Yoshinori NishiMasahiro Konishi
    • Yoshinori NishiMasahiro Konishi
    • H03L7/00
    • H04L7/0075H03L7/0807H03L7/104H03L7/143H04L7/0083H04L7/033H04L7/046H04L7/10
    • Apparatus and method for receiving burst data signal without using external detection signal are disclosed. The apparatus can include a clock data recovery (CDR) circuit to generate a clock signal, and a detection circuit to detect an initial portion in the data recovered from the input signal. The CDR circuit can have a first mode that attempts to synchronize the clock signal with a reference data signal, and a second mode that attempts to synchronize the clock signal with the burst data signal and to recover data based on the clock signal. The apparatus can include a controller to conduct a process including, in sequence, setting the CDR circuit in the first mode, setting the CDR circuit in the second mode, and keeping the CDR circuit in the second mode when the detection circuit detects the initial portion in the recovered data.
    • 公开了用于在不使用外部检测信号的情况下接收突发数据信号的装置和方法。 该装置可以包括用于产生时钟信号的时钟数据恢复(CDR)电路,以及用于检测从输入信号恢复的数据中的初始部分的检测电路。 CDR电路可以具有尝试将时钟信号与参考数据信号同步的第一模式,以及尝试使时钟信号与突发数据信号同步并基于时钟信号恢复数据的第二模式。 该装置可以包括控制器,以进行包括依次将CDR电路设置为第一模式的过程,将CDR电路设置为第二模式,并且当检测电路检测到初始部分时将CDR电路保持在第二模式 在恢复的数据。
    • 6. 发明申请
    • Semiconductor integrated circuit having protection circuit capable of protecting against ESD and EOS
    • 具有能够防止ESD和EOS的保护电路的半导体集成电路
    • US20100271739A1
    • 2010-10-28
    • US12662522
    • 2010-04-21
    • Hajime Hirata
    • Hajime Hirata
    • H02H9/04
    • H01L27/0266
    • A semiconductor integrated circuit has an internal circuit having an input terminal connected to a connection terminal, a protection circuit that discharges an over-voltage supplied to the connection terminal to a power line. The protection circuit includes a first discharge circuit connected to the connection terminal, a second discharge circuit connected to the connection terminal and discharges the over-voltage to the power line, and an over-voltage detect circuit that detects a discharge current flowing through the second discharge circuit and generates an over-voltage detect signal when the discharge current is detected. The first discharge circuit is disabled to discharge the over-voltage when the over-voltage detect signal is supplied.
    • 半导体集成电路具有内部电路,其具有连接到连接端子的输入端子,将提供给连接端子的过电压放电到电力线路的保护电路。 保护电路包括连接到连接端子的第一放电电路,连接到连接端子的第二放电电路,并将过电压放电到电源线;以及过电压检测电路,检测流过第二放电电流的放电电流 并且当检测到放电电流时产生过电压检测信号。 当提供过电压检测信号时,第一放电电路被禁止放电过电压。
    • 8. 发明授权
    • Timing detection circuit and apparatus for modulating light beam
    • 定时检测电路和调制光束的装置
    • US07671881B2
    • 2010-03-02
    • US11892490
    • 2007-08-23
    • Ryoji Okazaki
    • Ryoji Okazaki
    • B41J2/47B41J2/435
    • H04N1/047H04N2201/02439H04N2201/0471H04N2201/04744H04N2201/04781H04N2201/04784H04N2201/04794
    • A timing detection circuit including a first timing detection circuit, a second detection circuit, and an output circuit is disclosed. The first detection circuit detects, among multiphase clocks having n mutually different phases and a frequency of k times the frequency of a reference clock, a closest clock having a clock edge closest to a valid edge of the synchronizing signal and generates first detect signal DET_A indicating the detected clock. The second timing detection circuit detects within which of k successive cycles of the representative clock selected from the multiphase clocks the valid edge of the synchronizing signal is positioned and generates second detect signal DET_B indicating the detected cycle. The output circuit receives the first detect signal and the second detect signal and outputs first output signal OUT_A and second output signal OUT_B.
    • 公开了一种包括第一定时检测电路,第二检测电路和输出电路的定时检测电路。 第一检测电路在具有n个相互不同的相位的多相时钟和基准时钟的频率的k倍的多相时钟中检测最近的时钟,其具有最接近同步信号的有效边沿的时钟边缘,并且生成第一检测信号DET_A, 检测到的时钟。 第二定时检测电路检测从多相时钟选择的代表时钟的k个连续周期中的同步信号的有效边位于哪个中,并产生指示检测到的周期的第二检测信号DET_B。 输出电路接收第一检测信号和第二检测信号,并输出第一输出信号OUT_A和第二输出信号OUT_B。
    • 10. 发明申请
    • Switching-type power-supply unit and a method of switching in power-supply unit
    • 开关式电源单元和电源单元切换方式
    • US20090103334A1
    • 2009-04-23
    • US12285826
    • 2008-10-15
    • Ichiro Tamaki
    • Ichiro Tamaki
    • H02M7/00
    • H02M1/4258H02M3/33507Y02B70/126
    • A switching-type power-supply which enables the switching with little power loss and a method of switching the switching-type power-supply are provided. The switching-type power-supply unit includes a transformer with primary, secondary, winding and control windings, a switch which switches supply of a primary current from a dotted terminal to a non-dotted terminal through the primary winding, a rectifying diode connected the secondary winding, a monitoring signal generation circuit with a diode and a resistor, the diode between GND and a dotted terminal of the control winding, the resistor between GND and a non-dotted terminal of the control winding, the monitoring signal generation circuit generating a monitoring signal at the dotted terminal of the control winding, and a control unit with a zero-point detector and a controller. The zero-point detector monitoring the monitoring signal and supplying a detection signal to the controller. The controller determining on-timing of the switch based on the detection signal supplied from the zero-point detector.
    • 提供了能够进行小功率切换的开关型电源以及开关型电源的切换方法。 开关型电源单元包括具有初级,次级,绕组和控制绕组的变压器,开关,其通过初级绕组将点电端子的初级电流提供给非点状端子;整流二极管, 二次绕组,具有二极管和电阻的监测信号发生电路,GND与控制绕组的虚线端之间的二极管,GND与控制绕组的无点端之间的电阻,监测信号产生电路产生一个 在控制绕组的虚线端子处的监视信号,以及具有零点检测器和控制器的控制单元。 零点检测器监测监控信号并向控制器提供检测信号。 控制器基于从零点检测器提供的检测信号来确定开关的接通定时。