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1. 发明公开

KR20180042388A 정현파 승산 장치와 이것을 갖는 입력 장치 审中-公开
公开(公告)号：KR20180042388A
公开(公告)日：2018-04-25
申请号：KR20187008250
申请日：2016-10-13
申请人： ALPS ELECTRIC CO LTD
发明人： ASAO AKIRA , SASAI KIYOSHI , FUJIYOSHI TATSUMI
IPC分类号： G06F1/02 , G06F7/16 , G06G7/16
CPC分类号： G06F1/02 , G06F7/16 , G06G7/16
摘要： 출력신호 (Qu1) 에포함되는제 1 방형파 (W1) 의제 3 고조파와입력신호 (Vi) 의곱에따른신호성분, 및제 1 방형파 (W1) 의제 5 차고조파와입력신호 (Vi) 의곱에따른신호성분이, 출력신호 (Qu2) 에포함되는제 2 방형파 (W2) 의기본파와입력신호 (Vi) 의곱에따른신호성분, 및출력신호 (Qu3) 에포함되는제 2 방형파 (W3) 의기본파와입력신호 (Vi) 의곱에따른신호성분에의해상쇄된다.

2. 发明专利

DE602004014086D1 未知
公开(公告)号：DE602004014086D1
公开(公告)日：2008-07-10
申请号：DE602004014086
申请日：2004-11-02
申请人： ALPS ELECTRIC CO LTD
发明人： UMEDA YUICHI , FUJIYOSHI TATSUMI , KAWAHATA KEN
IPC分类号： G01B7/28 , G06K9/00
摘要： A capacitance detecting circuit (100) detects, in terms of voltage, change in capacitance at intersections of a plurality of column lines and a plurality of row lines crossing each other. The capacitance detecting circuit includes a column-line driving unit (4) for driving a column line; a row-line selector (5) for selecting a specific row line from the plurality of row lines; and a capacitance calculator for calculating a capacitance at an intersection of the specific row line and the driven column line based on a reference current that flows in relation to a reference capacitance and a current that flows in relation to the capacitance at the intersection.

3. 发明公开

EP3208942A4 INPUT DEVICE 有权转让
公开(公告)号：EP3208942A4
公开(公告)日：2018-05-30
申请号：EP15849835
申请日：2015-09-29
申请人： ALPS ELECTRIC CO LTD
发明人： FUJIYOSHI TATSUMI , HIRATATE YASUHIKO
IPC分类号： H03K17/955 , G06F3/041 , G06F3/044
CPC分类号： G06F3/044 , G06F3/0416 , G06F2203/04101 , G06F2203/04107 , H03K17/955 , H03K2017/9455 , H03K2217/960705
摘要： In a case where the amplitude of a detection voltage Vs is increased, the amplitude of a drive current Is flowing in a detection-target capacitor Cs also increases, and thus, the amplitude of a detection current Izm also increases. In this case, the increase in amplitude of the detection current Izm is not directly restricted by the condition of a power supply voltage range (GND to VDD) that enables a circuit to operate. For this reason, for example, a current conversion ratio "±" of a current output circuit 10, a capacitance value "C" of a capacitor Cf of a current-voltage conversion circuit 20, or the like is set to an appropriate value so as not to cause a voltage Vo to exceed the power supply voltage range, whereby it is possible to prevent the amplitude of the detection current Izm from being restricted by the condition of the power supply voltage range. Therefore, it is possible to increase the amplitude of the detection voltage Vs to a maximum within the power supply voltage range.

4. 发明专利

JP2005285168A Shift register and liquid crystal driving circuit using the same 审中-公开
标题翻译：移位寄存器和液晶驱动电路
公开(公告)号：JP2005285168A
公开(公告)日：2005-10-13
申请号：JP2004093908
申请日：2004-03-29
申请人： Alps Electric Co Ltd , アルプス電気株式会社
发明人： IWASAKI CHISATO , FUJIYOSHI TATSUMI , YAMADA YUKIMITSU , KIKUCHI KOJI
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , G11C19/00 , G11C19/18 , H04N5/66
CPC分类号： G09G3/3677 , G11C19/184
摘要： PROBLEM TO BE SOLVED: To provide a shift register capable of reducing an erroneous operation caused by a threshold value fluctuation by reducing stress applied to a transistor and suppressing the threshold value fluctuation of the transistor, and a liquid crystal driving circuit capable of preventing a display failure with time by using the shift register. SOLUTION: The shift register includes a plurality of longitudinally connected stages, and performs the operation of shifting an output signal by a plurality of phase-different clocks. Each stage is provided with an input diode for receiving a signal input from a previous stage, a capacitor for holding the charges of the voltage level of the input signal, a first transistor ON/OFF controlled by the held voltage level to output an output signal to a next stage in synchronization with a clock, and a second transistor located between the input diode and an output terminal, having a control electrode connected to the input diode of the next stage, and provided with a clamping function for discharging stored charges when the phase of the clock changes and turning OFF the first transistor. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种移位寄存器，其能够通过减少施加到晶体管的应力和抑制晶体管的阈值波动来减少由阈值波动引起的错误操作，以及能够通过使用移位寄存器防止随时间的显示故障。解决方案：移位寄存器包括多个纵向连接的级，并且执行通过多个相位不同的时钟偏移输出信号的操作。每级设置有用于接收来自前一级的信号输入的输入二极管，用于保持输入信号的电压电平的电荷的电容器，由保持电压电平控制的第一晶体管ON / OFF以输出输出信号位于与时钟同步的下一级，以及位于输入二极管和输出端子之间的第二晶体管，其具有连接到下一级的输入二极管的控制电极，并且具有用于在存储电荷时钟相位改变并关闭第一晶体管。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2004166039A Circuit for driving capacitive element 审中-公开
公开(公告)号：JP2004166039A
公开(公告)日：2004-06-10
申请号：JP2002330470
申请日：2002-11-14
申请人： Alps Electric Co Ltd , アルプス電気株式会社
发明人： FUJIYOSHI TATSUMI
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H03F3/30
CPC分类号： G09G3/3688 , G09G2310/0259 , G09G2310/027 , G09G2330/021
摘要： PROBLEM TO BE SOLVED: To reduce the power consumption of a source driver and accordingly of the whole liquid crystal display device by reducing the power loss of an output stage part in the source driver of the liquid crystal display device.
SOLUTION: A comparator circuit 10 compares an input V_IN from a D/A converter with an output V_OUT. A comparator circuit 11 consists of inverters connected in even stages and analog switches. The comparator circuit 11 fetches the input V_IN in a short period of time just before initialization and then opens an analog switch SW 1 and closes a switch SW2 to thereby suppress power consumption. A SW control circuit 12 controls on/off of switches SW 3 to SW 10 according to a determination output of the comparator circuit 11, a write signal WR and an output initialization signal INIT.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2003022057A Image signal driving circuit and display device equipped with image signal driving circuit 审中-公开
标题翻译：具有图像信号驱动电路的图像信号驱动电路和显示装置
公开(公告)号：JP2003022057A
公开(公告)日：2003-01-24
申请号：JP2001208161
申请日：2001-07-09
申请人： Alps Electric Co Ltd , アルプス電気株式会社
发明人： FUJIYOSHI TATSUMI
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H04N9/12
CPC分类号： G09G3/3607 , G09G3/3688 , G09G2300/0452 , G09G2310/027
摘要： PROBLEM TO BE SOLVED: To provide an image signal driving circuit which eliminates the need to change the input order of image data when a longitudinal and lateral stripe type display screen is driven.
SOLUTION: An image signal driving circuit which inputs image data DA, DB, and DC as series of serial data by as many as series of basic colors, converts the image data of the inputted series into parallel data for displaying one line on the display screen, and supplies them to the display screen is provided with a register 10 which inputs the image data of the series of the basic colors, sequentially stores the image data of the inputted series, and outputs them as parallel data, a latch 11 which stores the image data of the series of the basic colors outputted as the parallel data by the register, and a selector 12 which selects and supplies image data of one series in specific order out of the image data of the series of the basic colors stored in the latch to the display screen.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种图像信号驱动电路，当驱动纵向和横向条纹型显示屏时，不需要改变图像数据的输入顺序。解决方案：将图像数据DA，DB和DC作为串行数据串行输入多个基本颜色的图像信号驱动电路将输入的序列的图像数据转换成用于在显示屏幕上显示一行的并行数据并且将它们提供给显示屏幕具有寄存器10，其输入一系列基本颜色的图像数据，顺序地存储输入序列的图像数据，并将其作为并行数据输出;锁存器11，其存储由寄存器输出作为并行数据的一系列基本颜色的图像数据，以及选择器12，其选择并提供存储在锁存器中的一系列基本颜色的图像数据中的特定顺序的一个系列的图像数据到显示屏。

7. 发明专利

JP2005114362A Capacitance detecting circuit and method, and fingerprint sensor using the same 审中-公开
标题翻译：电容检测电路和方法，以及使用其的指纹传感器
公开(公告)号：JP2005114362A
公开(公告)日：2005-04-28
申请号：JP2003344769
申请日：2003-10-02
申请人： Alps Electric Co Ltd , アルプス電気株式会社
发明人： UMEDA YUICHI , FUJIYOSHI TATSUMI
IPC分类号： G01B7/28 , A61B5/117 , G06T1/00
摘要： PROBLEM TO BE SOLVED: To provide a capacitance detecting circuit and a method, and a finger print sensor, which improve S/N ratios by reducing the effects of disturbance noise, and detect a very small capacitance value Cs and a capacitance change value ΔCs of a sensor element with sufficient sensitivity. SOLUTION: The capacitance detecting circuit is a capacitance detector for detecting the capacitance of intersection parts of row wires and column wires in a capacitance sensor constituted by crossing the column wires across a plurality of the row wires, and comprises: an orthogonal code generating means for generating an orthogonal code, changing it in time-series order, and outputting a row drive signal; a row wire drive means for selecting and driving a plurality of row wires corresponding to the row drive signal; a capacitance detecting means connected to the column wires for converting the sum of the capacitance of intersection parts corresponding to the selected row wires into a voltage and outputting it as a detection voltage; and a decoding arithmetic circuit for decoding a data string of the detected voltage outputted in time-series order for every column wire by computations based on the orthogonal code, and for separating a voltage corresponding to the capacitance of each intersection part. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种通过减少干扰噪声的影响来提高S / N比的电容检测电路和方法以及指纹传感器，并且检测非常小的电容值Cs和电容变化具有足够灵敏度的传感器元件的ΔC值。电容检测电路是电容检测器，用于检测由跨越多条行布线的列线构成的电容式传感器中的行布线和列布线的交叉部分的电容，包括：正交码产生装置，用于产生正交码，以时间序列顺序改变，并输出行驱动信号; 行线驱动装置，用于选择和驱动与行驱动信号相对应的多个行线; 连接到列线的电容检测装置，用于将与所选行线对应的交叉点的电容之和转换为电压并将其输出作为检测电压; 以及解码运算电路，用于通过基于正交码的计算，对每列列线按时间序列顺序输出的检测电压的数据串进行解码，并分离与每个交叉部分的电容相对应的电压。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004208267A Source follower circuit and driving device of liquid crystal display 有权
公开(公告)号：JP2004208267A
公开(公告)日：2004-07-22
申请号：JP2003195213
申请日：2003-07-10
申请人： Alps Electric Co Ltd , アルプス電気株式会社
发明人： FUJIYOSHI TATSUMI , KAWABATA MASARU
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H03F1/02 , H03F3/00 , H03F3/50
CPC分类号： H03F3/005 , G09G3/3688 , H03F3/505
摘要： PROBLEM TO BE SOLVED: To reduce the loss in the output stage, and to realize small power consumption not only in a data driver but also in the whole of a liquid crystal display. SOLUTION: When a set signal becomes "H", a voltage Vgs(pre) is held in an input capacitor Cin so that a nMOS transistor 20 holds the source voltage Vin by the drain current I1. When the set signal becomes "L" and a write signal becomes "H", then the nMOS transistor 20 performs a source follower operation while charging a load capacitor Cload and becomes stable. Both of the set signal and the write signal become "L" at the timing of terminating a writing process into the load capacitor. A write voltage is held in the load capacitor hereinafter. Concurrently, the power consumption becomes zero because minute bias current 11 is reduced completely by compulsorily turning off the power sources 21, 22. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2001005436A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JP2001005436A
公开(公告)日：2001-01-12
申请号：JP17071599
申请日：1999-06-17
申请人： ALPS ELECTRIC CO LTD
发明人： SAITO JUNICHI , FUJIYOSHI TATSUMI
IPC分类号： G09G3/36 , G09G3/20 , G09G5/00 , G09G5/38 , H04N3/22 , H04N5/66
摘要： PROBLEM TO BE SOLVED: To provide an image display device adjusting display positions of images corresponding to many kinds of resolutions. SOLUTION: This image display device is provided with a first counter 2 that presets a value deciding the image display position set by a CPU 9 by a signal outputted from a synchronism start detection part 1, and counts by a prescribed clock signal, a first decoder 3 detecting that the count value of the first counter 2 becomes a prescribed value, a second counter 4 that presets the value deciding synchronism time width set by the output signal of the first decoder 3 in the CPU 9, and counts by the prescribed clock signal and a second decoder 5 detecting that the count value of the second counter 4 becomes the prescribed value. Further, this device is provided with a synchronizing signal generation part 6 outputting a regenerative synchronizing signal the start period of the synchronizing period of which is decided by the output signal of the first decoder 3, and the end period of the synchronizing period of which is decided by the output signal of the second decoder 5.

10. 发明专利

JPH0434518A DRIVING METHOD FOR MATRIX TYPE LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH0434518A
公开(公告)日：1992-02-05
申请号：JP14261690
申请日：1990-05-31
申请人： ALPS ELECTRIC CO LTD
发明人： FUJIYOSHI TATSUMI
IPC分类号： G02F1/133 , G09G3/36 , H04N5/66
摘要： PURPOSE:To prevent the transmissivity of a picture element from varying according to a display pattern by applying a signal voltage corresponding to the display pattern to respective signal electrodes and then applying a specific voltage to the signal electrodes and then applying a specific voltage to the signal electrodes for a period corresponding to the frequency of ON/OFF inversion of each picture element, and correcting the effective voltages applied to the both. CONSTITUTION:In a scanning period, a clock is asserted every time picture element data on M picture elements of one line are written in a shift register 3, an inversion detecting circuit 4 detects the inversion of the ON/OFF state of each signal electrode, and on up/down counter 5 corresponding to a signal electrode whose inversion is detected counts up. Similar operation is carried out thereafter in a scanning period to apply an ON voltage to scanning electrodes in order, and the frequency of ON/OFF inversion of the picture element data is counted by the signal electrodes. Then each signal electrode is applied with the specific correcting voltage for a time corresponding to the frequency of inversion of the display pattern in a specific period after the scanning voltage is applied to all the scanning electrodes. Consequently, the effective voltages can be held constant irrelevantly to the display pattern.

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