Patent application number | Description | Published |
20080266998 | VOLTAGE BOOSTER AND MEMORY STRUCTURE USING THE SAME - A voltage booster and a memory structure using the same are provided. When a data storage unit in the memory structure is in normal operation, all voltage pumps in the voltage booster are turned on for boosting a supply voltage. However, when the data storage unit is in standby state, in the voltage booster, some voltage pumps are turned on while other voltage pumps are turned off, for boosting the supply voltage. Accordingly, the standby current and power consumption are reduced and the pump efficiency is improved. | 10-30-2008 |
20080278199 | OFF-CHIP DRIVER - A driver includes a plurality of first PMOS transistors, a first resistor, a amplifier, a second PMOS transistor and a second resistor. The amplifier herein receives a reference voltage and outputs a regulating voltage. The above-mentioned reference voltage is produced in accordance with a band-gap reference voltage. Since the band-gap reference voltage is unlikely affected by a process variation, thus, the present invention is capable of providing an output current robust from process characteristic and the output current is more reliable to indicate a data signal. | 11-13-2008 |
20100171536 | VOLTAGE SELECTING CIRCUIT, VOLTAGE PROVIDING CIRCUIT UTILIZING THE VOLTAGE SELECTING CIRCUIT, AND SIGNAL DELAYING SYSTEM UTILIZING THE VOLTAGE PROVIDING CIRCUIT - A voltage providing circuit includes: a first voltage providing circuit, for generating a first voltage; a switch device, for receiving a first voltage; a second voltage providing circuit, for providing a second voltage; a control circuit, for controlling the switch device and the second voltage providing circuit, wherein in a first mode, the control circuit turns off the switch device for allowing a target device to receive the second voltage, and in a second mode, the control circuit turns on the switch device and stops the second voltage providing circuit from providing the second voltage such that the target device can receive the first voltage; and an adjusting circuit, for providing a reference voltage to the first voltage providing circuit according to the first voltage and the second voltage for changing the first voltage, thereby making the first voltage substantially equal to the second voltage. | 07-08-2010 |
20100219868 | SIGNAL DELAYING SYSTEM UTILIZING VOLTAGE PROVIDING CIRCUIT - A signal delaying system is provided, including a delay locked loop circuit and a voltage providing circuit. The delay locked loop circuit delays an input signal to generate a delayed signal. The voltage providing circuit provides a control voltage to the delay locked loop circuit for determining a delay time of the delay locked loop circuit when the delay locked loop circuit operates in a first mode; and providing a stand-by voltage to the delay locked loop circuit when the delay locked loop circuit operates in a second mode, wherein the voltage providing circuit further adjusts the stand-by voltage to make the stand-by voltage substantially equal to the control voltage. | 09-02-2010 |
Patent application number | Description | Published |
20100202234 | POWER-ON MANAGEMENT CIRCUIT FOR MEMORY - A power-on management circuit for a memory device is provided. The power-on management circuit comprises a first external power-on voltage detector, a second external power-on voltage detector, a delay unit, a logic circuit, an internal power-on voltage detector, a voltage control circuit, a plurality of first electric pumps and a second electric pump. The first external power-on voltage detector has a first voltage threshold, receives a first external voltage, and generates a first control signal when the first external voltage is higher than the first voltage threshold. The second external power-on voltage detector has a second voltage threshold, receives a second external voltage, and generates a second control signal when the second external voltage is higher than the second voltage threshold. | 08-12-2010 |
20130301371 | DYNAMIC RANDOM ACCESS MEMORY WITH MULTIPLE THERMAL SENSORS DISPOSED THEREIN AND CONTROL METHOD THEREOF - A dynamic random access memory (DRAM) with multiple thermal sensors disposed therein and a control method for the DRAM. A DRAM in accordance with an exemplary embodiment of the invention provides multi-zone temperature detection. The DRAM comprises a plurality of banks, a plurality of thermal sensors and a control unit. The thermal sensors are disposed between the banks. The control unit controls the thermal sensors to obtain sensed temperatures, and sets a self-refresh cycle for all of the banks based on the highest one of the sensed temperatures. | 11-14-2013 |
Patent application number | Description | Published |
20120194498 | BI-STABLE ACTIVE MATRIX DISPLAY APPARATUS AND METHOD FOR DRIVING DISPLAY PANEL THEREOF - A bi-stable active matrix (AM) display apparatus and a method for driving a display panel thereof are provided. The bi-stable AM display apparatus includes a bi-stable AM display panel, a scan driver, a data driver and a controller. A frame period is divided into a resetting phase and a determining phase. The controller resets pixels on a plurality of scan lines of the bi-stable AM display panel to a homotropic state in the resetting phase through the scan driver and the data driver. The controller writes frame information into the pixels on the scan lines in the determining phase through the scan driver and the data driver. | 08-02-2012 |
20130016131 | DRIVING METHOD OF MULTI-STABLE DISPLAYAANM Chen; Chih-JenAACI Tainan CityAACO TWAAGP Chen; Chih-Jen Tainan City TWAANM Hsu; Chien-ChihAACI Miaoli CountyAACO TWAAGP Hsu; Chien-Chih Miaoli County TWAANM Chang; Yun-ShuoAACI Taoyuan CountyAACO TWAAGP Chang; Yun-Shuo Taoyuan County TWAANM Wu; Cheng-ChungAACI Taichung CityAACO TWAAGP Wu; Cheng-Chung Taichung City TW - A driving method of multi-stable display is provided. A first voltage is provided to a scan line of a pixel if a state of the pixel is not changed. If the pixel is set to a bright state, voltages V | 01-17-2013 |
20130093745 | DISPLAY PANELS AND DISPLAY UNITS THEREOF - A display unit is provided. The display unit includes a multiplexer circuit, a latch circuit, and a liquid crystal capacitor. The multiplexer circuit receives a plurality of voltages. The plurality of voltages at least comprises a first voltage and a second voltage. The latch circuit receives a driving signal and a first data signal. When the driving signal is at an asserted state, the latch circuit controls the multiplexer circuit according to the first data signal to select the first voltage or the second voltage to serve as a display voltage. The liquid crystal capacitor receives the display voltage. The liquid crystal capacitor has a plurality of liquid crystal molecules, and an optical state of the plurality of liquid crystal molecules is determined according to the display voltage. | 04-18-2013 |
20130100011 | HUMAN-MACHINE INTERFACE DEVICE - A human-machine interface device suitable for being electrically connected to an electronic device. The human-machine interface device includes a flexible carrier having at least one flexible portion, a bending sensor, and a control module. The bending sensor is disposed on the flexible portion of the flexible carrier. The control module is disposed on the carrier, connected to the bending sensor, and electrically connected to the electronic device. A first operation signal from the bending sensor is transmitted to the electronic device through the control module so that the electronic device performs according to the first operation signal. | 04-25-2013 |
20130162699 | ACTIVE MATRIX TYPE BISTABLE CHIRAL NEMATIC LIQUID CRYSTAL DISPLAY AND DRIVING METHOD THEREOF - The disclosure provides a driving method for an active matrix type bistable chiral nematic liquid crystal display, including: dividing a frame into at least two fields, wherein each field is formed by a plurality of pixel rows; driving one of the at least two fields by a plurality of driving operations, wherein a liquid crystal unit of each pixel in the field is driven to one of two predetermined states in each driving operation; and driving the other fields by the plurality of driving operations. | 06-27-2013 |
20140176421 | DISPLAYING METHOD FOR FLEXIBLE DISPLAY DEVICE AND FLEXIBLE DISPLAY DEVICE USING THE SAME - A displaying method of a flexible display device and the flexible display device using the method are provided. The displaying method includes: displaying at least one object on a displaying area of the flexible display device; detecting a display mode of the flexible display device and generating display mode information; determining if at least one second object in the at least one object is displayed on a separation line according to the display mode information; rearranging the at least one object in the displaying area according to the display mode information if the at least one second object is displayed on the separation line. Accordingly, the arranging of the at least one object fits the need of users. | 06-26-2014 |