Patent application number | Description | Published |
20090251477 | MEMORY SAVING DISPLAY DEVICE - A display device capable of saving memory storage used for an overdriving function includes a compression unit, a frame buffer, a decompression unit and a look-up table (LUT) unit. The compression unit includes a decimation filter and is used for compressing data of a received frame and reducing a size of the received frame, to generate a compression frame. The frame buffer is coupled to the compression unit and used for storing the compression frame. The decompression unit includes an interpolation filter and is used for decompressing data of the compression frame outputted by the frame buffer and reducing a size of the compression frame, to generate a decompression frame. The LUT unit is coupled to the decompression unit and used for comparing the decompression frame with a next received frame of the received frame to determine an overdriving voltage. | 10-08-2009 |
20090262840 | Synchronization Signal Extraction Device and Related Method - A synchronization signal extraction device includes a signal reception terminal for receiving a composite video signal, a threshold voltage adjuster coupled to the signal reception terminal for adjusting a threshold voltage to a ratio of a first characteristic level and a second characteristic level of the composite video signal according to the first characteristic level and the second characteristic level, a slicer coupled to the signal reception terminal and the threshold voltage adjuster for slicing the composite video signal to extract a synchronization signal in the composite video signal, and a signal output terminal coupled to the slicer for outputting the extracted synchronization signal. | 10-22-2009 |
20090278767 | Data Access Method for a Timing Controller of a Flat Panel Display and Related Device - A data access method for a timing controller of a flat panel display includes forming a line buffer including a plurality of memory cells in the timing controller, dividing the plurality of memory cells into a first section and a second section, wherein the number of memory cells in the first section is greater than the number of memory cells in the second section, writing a first number of pixel data into the first section, wherein the first number of pixel data is included in a plurality of pixel data corresponding to a row of a frame, writing a second number of pixel data into the second section, wherein the second number of pixel data is included in the plurality of pixel data, and the first number is equal to the second number, and reading the plurality of pixel data from the plurality of memory cells according to an order. | 11-12-2009 |
Patent application number | Description | Published |
20090045793 | Stabilizing methods for current source - A stabilizing current source circuit is provided. The stabilizing current source circuit is used for stabilizing a current provided by a current source, and the current of the current source increases when temperature rises. The stabilizing current source circuit comprises a current source circuit and an adjustment circuit. The current source circuit provides a current that increases when temperature rises. The adjustment circuit is coupled to the current source circuit and provides an input current that increases when temperature rises. The current of the current source is subtracted from the input current to generate a current source current which does not vary with temperature. | 02-19-2009 |
20090045794 | Stabilizing methods for current source - A stabilizing method for a current source is provided. The current source is provided a current which increases when temperature rises. An adjustment circuit provides an input current increasing when temperature rises. A rising ratio of the input current with temperature is the same as a rising ratio of the current of the current source with temperature. The current of the current source is subtracted from the input current. After the current of the current source is subtracted from the input current, the current of the current source does not vary when temperature varies. | 02-19-2009 |
20090096542 | FREQUENCY STABILIZING DEVICE OF AN OSCILLATOR - A frequency stabilizing device of an oscillator is disclosed. The frequency stabilizing device of an oscillator is used for stabilizing the frequency of an oscillator to keep the frequency in constant when input voltage is changed. The frequency stabilizing device comprises a plurality of transmission gates for receiving an input voltage and generating a current and a plurality of resistors for control the value of the current, wherein the current is positive in relation to the input voltage and the frequency of the oscillator is determined by the current. | 04-16-2009 |
20090146753 | OSCILLATOR VOLTAGE SOURCE CIRCUITS - An oscillator voltage source circuit is provided comprising a multiplexer, a plurality of transmission gates, a plurality of resistors, a voltage source circuit, and an output circuit. The multiplexer inputs a digital signal. The transmission gates is individually coupled to the multiplexer and receives the digital signal, wherein the plurality of transmission gate are turned on or off according to the digital signal. The plurality of resistors is coupled in series and individually coupled to the plurality of transmission gates. The voltage source circuit is coupled to the plurality of resistors and provides a first voltage source. The output circuit is coupled to the voltage source and outputs an oscillator voltage source according to the first voltage source and the turned-on or turned-off transmission gates. | 06-11-2009 |
20090160494 | OUTPUT DRIVING CIRCUITS - An output driving circuit is disclosed, providing an output signal at an output node and comprises an inverter and an output driver. A first P-type transistor and a first N-type transistor of the inverter are coupled in series between high and low voltage sources and controlled respectively by first and second driving signals. A gate oxide layer of the first N-type transistor is thinner than that of the first P-type transistor. The inverter generates a first driving signal. A second P-type transistor and a second N-type transistor of the output driver are coupled in series at the output node between the high and low voltage sources. The second P-type transistor and the second N-type transistor are controlled respectively by the first driving signal and a second driving signal. A falling time of the first driving signal is longer than a falling time of the second driving signal. | 06-25-2009 |