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Chun-Liang Chen
Chun-Liang Chen, Yongkang City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100067612 | Frequency synthesis system with self-calibrated loop stability and bandwidth - A frequency synthesis system with self-calibrated loop stability and bandwidth, which outputs an output signal based on an input signal and includes a detector, a charge pump, a filter, a controllable oscillator and a programmable frequency divider. The detector produces a detection signal based on a logic level difference between the input signal and a feedback signal. The charge pump is connected to the detector in order to produce a control signal based on the detection signal. The filter is connected to the charge pump in order to produce a tuning signal based on the control signal. The controllable oscillator is connected to the filter in order to produce the output signal based on the tuning signal. The programmable frequency divider is connected to the controllable oscillator in order to produce the feedback signal based on the output signal. The filter is a discrete time loop filter. | 03-18-2010 |
| 20100214025 | Low jitter and wide-range frequency synthesizer for low voltage operation - A low jitter and wide-range frequency synthesizer for low voltage operation includes a detector to generate a detection signal based on a logic level difference between an input signal and a feedback signal, a charge pump to generate a control signal based on the detection signal, a filter to generate a tuning signal based on the control signal, a bias circuit to generate a first bias signal and a second bias signal based on the tuning signal, a controllable oscillator to generate a differential output signal based on the first and the second bias signals, a differential to single ended converter to convert the differential output signal into an output signal, and a programmable frequency divider to generate the feedback signal based on the output signal. | 08-26-2010 |
| 20110063004 | Frequency synthesis system with self-calibrated loop stability and bandwidth - In a frequency synthesis system with self-calibrated loop stability and bandwidth, a detector produces a detection signal based on a difference between an input signal and a feedback signal; a charge pump produces a control signal based on the detection signal; a filter produces a tuning signal and a source current based on the control signal; a bias circuit produces first and second bias signals; a controllable oscillator produces a differential output signal with a selected specific frequency; a differential-to-single converter produces an output signal with the selected specific frequency; a programmable frequency divider produces the feedback signal; a current mirror circuit receives the source current for producing a mirror current; a compensation circuit produces a compensation current based on the mirror current for compensating the variation of the damping factor and the bandwidth-to-reference frequency ratio. | 03-17-2011 |
Chun-Liang Chen, Hsinchu City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100232721 | IMAGE COMPRESSION METHOD AND RELATED APPARATUS - An image compression method includes: inputting an original image data and performing a specific transform operation upon the original image data to generate a transformed image data; performing a quantization operation upon the transformed image data according to a quantization table to generate a quantized image data; encoding the quantized image data to generate a compressed image data; and calculating a data amount corresponding to the compressed image data and accordingly determining whether to adjust the quantization table according to the data amount. | 09-16-2010 |
Chun-Liang Chen, Tainan County TW
| Patent application number | Description | Published |
|---|---|---|
| 20100141314 | ALL DIGITAL PHASE LOCKED LOOP CIRCUIT - An all digital phase locked loop circuit includes a reference frequency indicator for receiving a reference signal with a reference frequency and generating a frequency indicating value; a phase frequency detector for comparing the reference signal with a frequency divided signal and generating a phase difference pulse; a time-to-digital circuit for receiving the phase difference pulse and a plurality of output signals and generating a phase difference value; a digital controller for receiving the frequency indicating value and the phase difference value and generating a control value; a delta-sigma modulator for modulating the control value and generating a modulated control value; a DCO for receiving the modulated control value and generating an output oscillating signal with a digital controlled frequency; a frequency divider for dividing the digital controlled frequency to generate the frequency divided signal; and a multi-phase generator for receiving the output oscillating signal and generating the output signals. | 06-10-2010 |
Chun-Liang Chen, Tu-Cheng TW
| Patent application number | Description | Published |
|---|---|---|
| 20090312078 | WIRELESS COMMUNICATION DEVICE - A wireless communication device includes an earphone, a frequency modulation integrated circuit, a microphone, an analog switch, and a main processor. The main processor includes a software amplifier operable to amplify signals from the analog switch and output the amplified signals. The wireless communication device amplifies audio signals by the software amplifier of the main processor. | 12-17-2009 |
| 20100093408 | WIRELESS COMMUNICATION TERMINAL AND BATTERY CAPACITANCE MEASURING METHOD THEREOF - A wireless communication terminal includes a battery module, a monitor module, a battery-capacitance update module, and a display module. The monitor module detects a working state of the wireless communication terminal including idle and communication states, periodically detects and records a voltage of the battery module, calculates dynamic average voltages of the battery module in the idle and communication states, and subtracts the dynamic average voltages in the idle and communication states to calculate a dynamic voltage compensation of the battery module in the communication state. The battery-capacitance update module includes a timer, and detects a voltage of the battery module after the timer has timed out, compensates the detected voltage with the dynamic voltage compensation when in the communication state, and reads battery capacitance of the battery module according to the compensated voltage. The display module displays the battery capacitance. | 04-15-2010 |
| 20110111811 | MOBILE PHONE POWER SUPPLY CIRCUIT - A mobile phone power supply circuit for a mobile phone, including a super capacitor, a photovoltaic module, a comparator, a battery power source, and a single-pole-double-throw (SPDT) switch. The photovoltaic module buffers solar power in the super capacitor. The comparator compares voltage of the super capacitor and a reference voltage and outputs a control signal according to the comparison. The SPDT switch selects either the super capacitor or the battery power source to supply power to the mobile phone according to the control signal. | 05-12-2011 |
Chun-Liang Chen, Chungho City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100064278 | PROGRAMMING SYSTEM AND PROGRAM EXPANDING METHOD - The invention provides a programming system comprising a software component, a client side, and N expanding module. The software component comprises a receiving/processing interface and N first link interface; the client side could be used for transferring client information to the software component through the receiving/processing interface; and each expanding module is corresponding to one of the first link interface and comprises an expanding content. Accordingly, a connecting relation could be built between the software component and one expanding module, corresponding to the client information, of the N expanding module through the first link module, so that the software component can communicate with the expanding module to obtain the expanding content. | 03-11-2010 |
Chun-Liang Chen, Hsinchu County TW
| Patent application number | Description | Published |
|---|---|---|
| 20090254688 | Microprocessor Device and Related Method for a Liquid Crystal Display Controller - To reduce production cost, the present invention provides a microprocessor device for an LCD controller, which includes a memory, a first processing unit, a second processing unit, a first arbiter and a second arbiter. The memory is utilized for storing data. The first processing unit is utilized for executing a first program. The second processing unit is utilized for executing a second program. The first arbiter is coupled to the first processing unit and the second processing unit and utilized for deciding an operation order for the first processing unit and the second processing unit. The second arbiter is coupled to the first processing unit, the second processing unit and the memory and utilized for deciding a memory accessing order for the first processing unit and the second processing unit. | 10-08-2009 |
Chun-Liang Chen, Changhua County TW
| Patent application number | Description | Published |
|---|---|---|
| 20080217275 | Stackable and combinable rack - A stackable and combinable rack is composed of a plurality of U-shaped struts. Each of the struts includes two U-shaped bars spaced from each other, and two connecting bars connected between two respective adjacent ends of the U-shaped bars. Each of the two U-shaped bars has a bottom section and two lateral sections extending from two ends of the bottom section respectively. The U-shaped struts are arranged in at least two pairs. In each pair of the struts, the bottom bars of one strut are adjacent to those of the other strut. The at least two pairs of the struts are vertically arranged. The bottom bars of one pair of the struts cross those of the other pair of the struts. One pair of the struts is located outside the other pair of the struts. In light of this, a plurality of receiving spaces are formed. | 09-11-2008 |
Chun-Liang Chen, Taoyuan County TW
| Patent application number | Description | Published |
|---|---|---|
| 20090084973 | WATER PHANTOM WITH FIXED WATER LEVEL FOR MEASURING DOSE OF IONIZING RADIATION ABSORBED TO WATER AND THE METHOD THEREOF - A water phantom structure with fixed water level for measuring dose of ionizing radiation absorbed to water and the method thereof are disclosed, in which the water phantom structure comprises: a tank, enclosed by four wall plates and a bottom plates, all made of an isohydric material, and having 95% of its volume to be filled with a water solution; a concave lid, being a plate configured with a fillister and made of an isohydric material to be placed in the tank while floating on the water solution for settling the water level of the water solution from undulating and thus capable of acting as a reference water level; and a moving device. The aforesaid water phantom structure can be applied in operations for measuring or calibrating output radiation doses emitted from devices such as medical gamma-ray radiation devices or linear accelerators, using which the measurement will not be interfered by the undulation of water level commonly seen in those conventional water phantom since the aforesaid water phantom structure is able to provide a fixed water level by suppressing such undulation with the concave lid. | 04-02-2009 |