| Patent application number | Description | Published |
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| 20090167328 | FLUID MEASURING APPARATUS - The invention provides a fluid measuring apparatus, which includes a collector, a sensing circuit, and an electrochromic device electrically connected to the sensing circuit. When the concentration of a fluid flowing through the collector and between the sensing circuit varies, the color of the electrochromic device changes accordingly. Further, the electrochromic device includes an electrochromic material, and the sensing circuit includes a first electrode and a second electrode, wherein the first and the second electrodes are disposed in the collector and the electrochromic material is disposed on the first electrode. When the concentration of an electrolytic solution flowing between the first electrode and the second electrode varies, the color of the electrochromic material changes accordingly. | 07-02-2009 |
| 20090242281 | TOUCH SENSING DEVICE AND TOUCH SENSING APPARATUS - The invention discloses a touch sensing device, which includes a containing space, a first substrate layer, a second substrate layer, a driver, and a sensor. The first substrate layer and the second substrate layer define the containing space for containing a fluid. The driver can provide charges to a first conducting layer of the first substrate layer, a second conducting layer of the second substrate layer, and the fluid. The sensor can sense the electric characteristics of the fluid. When a point unit approaches the touch sensing device and influences the charges, the appearance of the fluid could be changed and then the electric characteristics could also be changed. | 10-01-2009 |
| 20100259507 | OPTICAL TOUCH APPARATUS AND OPERATING METHOD THEREOF - An optical touch apparatus and operating method thereof are disclosed. The optical touch apparatus comprises an optical module, a light sensing module, and a processing module. The optical module and the light sensing module are set at a first side and an opposite second side of a surface of the optical touch apparatus respectively. The optical module receives a light source and uniformly emits a plurality of lights. When at least one of the plurality of lights is blocked by an object above the surface, the light sensing module generates a sensing result based on the condition of receiving the plurality of lights. The processing module determines a touch point location corresponding to the object on the surface based on the sensing result. | 10-14-2010 |
| 20100271307 | OPTICAL TOUCH SYSTEM AND OPERATING METHOD THEREOF - An optical touch system is disclosed. The optical touch system includes an optical touch apparatus, a control apparatus, and a rotating apparatus. When the control apparatus receives a mode switching signal, the control apparatus selects a corresponding specific using mode from a plurality of default using modes according to the mode switching signal. And, the specific using mode corresponds to a specific rotating angle. The rotating apparatus rotates the optical touch apparatus with the specific rotating angle to make the optical touch apparatus is rotated from a first location to a second location, so that a user can perform an input action via the optical touch apparatus according to the specific using mode. | 10-28-2010 |
| 20100321343 | OPTICAL TOUCH APPARATUS AND OPERATING METHOD THEREOF - An optical touch apparatus is disclosed. The optical touch apparatus comprises a light source emitting module, an optical module, a light sensing module, and a processing module. The optical module and the light sensing module are set around a surface of the optical touch apparatus. The light source emitting module sequentially emits scanning lights uniformly distributed above a direct scanned region of the surface according to a time sequence. When an object forms a touch point on the surface, the object will block the scanning lights and reflected lights reflected by the optical module. The light sensing module generates a sensing result according to the condition the light sensing module receives the scanning lights and the reflected lights. The processing module determines the position of the touch point according to the time sequence and the sensing result. | 12-23-2010 |
| Patent application number | Description | Published |
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| 20080225616 | METHOD FOR INCREASING RETENTION TIME IN DRAM - The disclosure generally relates to a method and apparatus for decreasing the frequency of refreshing a memory cell in communication with a word line and a bit line. A method according to one embodiment includes: providing a DRAM circuit having a memory cell, a sense amplifier including a pre-charge circuit connected to a first voltage source and a back-to-back inverter including a first NMOS transistor having a source, a second NMOS transistor having a source, a first PMOS transistor having a source and a second PMOS transistor having a source; maintaining the voltage of the sources of the first and second PMOS transistors at a first voltage during normal operation; and raising the voltage of the sources of the first and second PMOS transistors from the first voltage to a second voltage during a refresh operation. | 09-18-2008 |
| 20080225617 | METHOD FOR HIGH SPEED SENSING FOR EXTRA LOW VOLTAGE DRAM - A method and apparatus are provided for sensing in low voltage DRAM memory cells. A method according to one embodiment includes: providing a DRAM circuit having a memory cell, a sense amplifier including a pre-charge circuit connected to a first voltage source and a back-to-back inverter including a first and second NMOS transistor, each having a source and a first and second PMOS transistor, each having a source. The method further includes the steps of maintaining the voltage of the sources of the first and second NMOS transistors at a first voltage during normal operation and lowering the voltage of the sources of the first and second NMOS transistors from the first voltage to a second voltage during a read operation. | 09-18-2008 |
| 20100141330 | POWER-DOWN CIRCUIT WITH SELF-BIASED COMPENSATION CIRCUIT - A circuit includes a first power supply node at a first power supply voltage; a gated-node; and a first control device coupled between the first power supply node and the gated-node. The first control device is configured to pass the first power supply voltage to the gated-node or to disconnect the gated-node from the first power supply voltage. A second control device is coupled between the first power supply node and the gated-node. The second control device is configured to pass a gated-voltage to the gated-node or disconnect the gated-node from the gated-voltage. A voltage-drop device is coupled between the first power supply node and the gated-node, wherein the voltage-drop device is serially connected with the second control device. A negative-feedback current source is connected in parallel with the voltage-drop device. The negative-feedback current source is configured to provide a current tracking a variation of the gated-voltage at the gated-node. | 06-10-2010 |
| 20100260002 | Circuit and Method for Small Swing Memory Signals - Circuits and methods for transmitting and receiving small swing differential voltage data to and from a memory are described. A plurality of memory cells is formed in arrays within a plurality of memory banks. Each memory bank is coupled to a pair of small swing differential voltage global bit lines that extend across the memory. A small signal write driver circuit is coupled to the global bit lines and configured to output a small signal differential voltage on the global bit lines during write cycles. A global sense amplifier is coupled to the global bit line pairs and configured to output a full swing voltage on a data line during a read cycle. Methods for providing small swing global bit line signals to memory cells are disclosed. The use of small swing differential voltage signals across the memory reduces power consumption and shortens memory cycle time. | 10-14-2010 |
