Yao-Hwa
Yao-Hwa Chen, Taipei TW
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20100259228 | ELECTRONIC DEVICE AND POWER CHARGING SYSTEM THEREOF - A power charging system includes an embedded controller (EC), a control integrated circuit (IC), a current charging IC, and a power converter. The embedded controller outputs a pre-charging signal, a first charging signal, and a second charging signal according to the electricity quantity of the rechargeable battery. The control IC controls a plurality of switches to be on or off to generate a configuration of a plurality of configurations according to the received pre-charging signal, the received first charging signal, and the received second charging signal and correspondingly generates a voltage value according to the configuration. The current charging IC receives the voltage value and outputs a control signal. The power converter converts a direct current outputs to a charging current with a specific value according to the received control signal. | 10-14-2010 |
Yao-Hwa Chen, Taipei City TW
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20120020127 | POWER SYSTEM WITH POWER SAVING FUNCTION - A power system includes an electronic device having a host and a state generator and an adaptor. The host is capable of presenting a plurality of states and generating a plurality of state signals corresponding to the states, and the state generator is electrically connected to the host, receives the state signals and generates a control signal accordingly. The adaptor is connected to an AC voltage and has a state receiving terminal to receive the control signal. The adaptor is capable of generating a DC voltage to the electronic device according to the control signal. | 01-26-2012 |
20140331067 | PORTABLE ELECTRONIC DEVICE - A portable electronic device is provided. The portable electronic device includes a host, a power adapter and a signal transmission interface. The host generates state information according to present operating state, and the power adapter is used to provide a voltage to the host. The power adapter receives the state information of the host via the signal transmission interface, and adjusts the output voltage according to the state information. By transmitting information between the host and the power adapter, the power adapter can be adjusted according to the operating state of the host. Moreover, the host can adjust the operating state according to the specification information of the power adapter. Consequently, the power consuming of the portable electronic device has best efficiency thus to reduce carbon emission. | 11-06-2014 |
Yao-Hwa Wen, New Taipei City TW
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20140159947 | PROCESSING METHOD FOR FMCW RADAR SIGNAL WITH DUAL PULSE REPETITION FREQUENCY - A processing method for radar signal with dual pulse repetition frequency, comprising: generating a first transmission signal and a second transmission signal, and perform a transmission process; reflecting a first echo signal and a second echo signal from an object, and converting the first transmission signal and the second transmission signal to a frequency domain information by using 2D (Two Dimension) fast Fourier transform (FFT); and filtering noise in the frequency domain information, and performing a calculation program by using a algorithm to obtain Doppler shift of the object. Thereby, the processing method of the present invention can overcome the bad operation ability of the lower hardware and advance the radar target detection speed restrictions. | 06-12-2014 |