Abstract: An optoelectronic device includes a first semiconductor layer, a second semiconductor layer and an active layer between the first semiconductor layer and the second semiconductor layer; a first insulating layer on the second semiconductor layer and including a plurality of first openings exposing the first semiconductor layer, wherein the first openings include a first group and a second group; a third electrode on the first insulating layer and including a first extended portion and a second extended portion, wherein the first extended portion and the second extended portion are respectively electrically connected to the first semiconductor layer through the first group of the first openings and the second group of the first openings, and wherein the number of the first group of the first openings is different from the number of the second group of the first openings; and a plurality of fourth electrodes on the second insulating layer and electrically connected to the second semiconductor layer, wherein in a

Abstract: An electronic device and a method for obtaining features of biometrics are provided. The method includes: obtaining an image including a plurality of biological features; obtaining a plurality of feature points of the biological features in the image; dividing the image into a plurality of sub-images, and obtaining a region in each of the sub-images; and identifying from among a plurality of second feature points in the region in each of the sub-images a plurality of third feature points for performing a biometric operation.

Abstract: An electronic device and a method for obtaining features of biometrics are provided. The method includes: obtaining an image including a plurality of biological features; obtaining a plurality of feature points of the biological features in the image; dividing the image into a plurality of sub-images, and obtaining a region in each of the sub-images; and identifying from among a plurality of second feature points in the region in each of the sub-images a plurality of third feature points for performing a biometric operation.

Abstract: A power supplying circuit adapted for receiving an output from a power adapter and supplying power to a battery unit and a system load is provided. The power supplying circuit includes a charger unit, a switching unit, and a voltage regulating unit. The charger unit receives a first supplying voltage from the power adapter through a power terminal and charges the battery unit. The switching unit is coupled to the power terminal and the charger unit. The switch unit is configured for receiving the first supplying voltage and a second supplying voltage from the charger unit. The voltage regulating unit is coupled to the switching unit and configured for powering the system load. The switching unit supplies the first supplying voltage to the voltage regulating unit under heavy load condition. The switching unit supplies the second supplying voltage to the voltage regulating unit under light load condition.

Abstract: This invention discloses systems and methods for determining the sequence of amino acids in a short peptide chain that constructs a protein. The protein is firstly hydrolyzed to various short peptides and amino acid enantiomers. Then, the systems and method are used to separate the short peptides and the amino acid enantiomers, identify qualitatively each of the amino acid enantiomers, and obtain the molecular mass signal for each of the peptides. After that, the identified amino acid enantiomers are used to construct any possible short peptides in an order from the smallest molecular weight dipeptide to higher molecular weight short peptides, and the correct short peptides is confirmed by matching the molecular weight obtained from the mass spectrometry measurement, then, the short peptides are combined to give a large peptide. The process is continued until the whole amino acid sequence of the peptide chain of protein can be determined.

Abstract: A power supplying circuit adapted for receiving an output from a power adapter and supplying power to a battery unit and a system load is provided. The power supplying circuit includes a charger unit, a switching unit, and a voltage regulating unit. The charger unit receives a first supplying voltage from the power adapter through a power terminal and charges the battery unit. The switching unit is coupled to the power terminal and the charger unit. The switch unit is configured for receiving the first supplying voltage and a second supplying voltage from the charger unit. The voltage regulating unit is coupled to the switching unit and configured for powering the system load. The switching unit supplies the first supplying voltage to the voltage regulating unit under heavy load condition. The switching unit supplies the second supplying voltage to the voltage regulating unit under light load condition.

Abstract: A protection device for an electronic system includes a detecting module, coupled between a power supply device and a computing device of the electronic system for generating a current instruction signal according to the current value of a supply current transmitted from the power supply device to the computing device; a determining module, coupled to the detecting module for generating a control signal according to the current instruction signal and at least one threshold; and a performance adjusting module, coupled to the determining module and the computing device for adjusting the performance of the computing device according to the control signal.

Abstract: A power management system for an electronic device includes a first power converting module, for selectively converting an input voltage of a battery module of the electronic device to a first supply voltage and outputting the first supply voltage to an output node according to a first control signal; a second power converting module, for selectively converting the input voltage to a second supply voltage and outputting the second supply voltage to the output node according to a second control signal; and a logic control module, for outputting the first control signal and the second control signal according to the input voltage and a threshold voltage in order to control whether the input voltage is converted by the first power converting module or the second power converting module.