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Hui-Chun
Hui-Chun Chen, Taipei Hsien TW
| Patent application number | Description | Published |
|---|---|---|
| 20090239404 | Fixture - The present invention relates to a fixture capable of fixing a USB connector on a housing. The fixture comprises a housing connection surface, a top surface, a first lateral surface, and a second lateral surface, wherein the housing connection surface is capable of being fixed on the housing; the top surface is connected to the housing connection surface where both surfaces are substantially perpendicular to each other, and the top surface comprises a first constraining unit capable of contacting a protection part of the USB connector to constrain movement of the USB connector along a first direction; the first lateral surface is connected to the top surface to constrain movement of the USB connector; and the second lateral surface is connected to the top surface to constrain movement of the USB connector. | 09-24-2009 |
Hui-Chun Chen, Hsinchu TW
| Patent application number | Description | Published |
|---|---|---|
| 20090028270 | MIMO BROADBAND CHANNEL EMULATOR - The present invention relates to a multiple input, multiple output broadband channel emulator. The broadband emulator having RF input signals comprises a mixing matrix. The mixing matrix includes two broadband splitters, two broadband combiners, one phase shifter. More particularly, the broadband power splitter/combiner includes four transmission lines, a resistor being provided as a termination, and a 180 degree phase shifter, wherein the phase shifter is positioned in the transmission path. | 01-29-2009 |
Hui-Chun Hsu, Bade 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 |
Hui-Chun Liao, Sanchung City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100224741 | Monitor Clamping Device - A monitor clamping device includes a first board having multiple first hooks and a second board having multiple second hooks, the monitor is clamped between the first and second hooks. Multiple first slots are defined in the second board and multiple first guide plates are connected to the first board. The first guide plates movably extend through the first slots. Multiple second guide plates are connected to the second board and engaged with the first guide plates when the first guide plates are moved to a lower end of the first slots. A resilient unit is connected between the first and second board so as to adjust the distance between the first and second hooks. The monitor clamping device can clamp different size monitors. | 09-09-2010 |
Hui-Chun Lin, Hsinchu TW
| Patent application number | Description | Published |
|---|---|---|
| 20090156216 | System and method for resumable data transmission - A method for resuming data transmission in a data transmission system including multiple information processing units and at least one mobile device, the multiple information processing units and the mobile device each including a wireless communication component, the method includes: transmitting data, by a first one of the multiple information processing units, to the mobile device; recording a transmission status of the mobile device, the transmission status including information regarding an unfinished data transmission by the first information processing unit to the mobile device; and resuming transmitting data relating to the unfinished data transmission, by a second one of the multiple information processing units, to the mobile device based on the recorded transmission status. | 06-18-2009 |
Hui-Chun Tsai, Taipei TW
| Patent application number | Description | Published |
|---|---|---|
| 20090006223 | Method and system for checking a bill of material - A method and a system for checking a bill of material (BOM) are provided. Firstly, a transforming unit transforms an initial configuration list of a product into a BOM. Next, a model number corresponding to the product is chosen from an input unit. Then, the product is pictorialized by a pictorializing unit according to the model number and the BOM to generate and display a virtual machine of the product on a display unit. Lastly, the displayed virtual machine provides users to determine that the BOM is correct or not. | 01-01-2009 |