Abstract: A panoramic photographing method for an unmanned aerial vehicle (UAV) and an UAV using the same are provided. The panoramic photographing method includes steps of: disposing a digital camera on an UAV; recording a flying altitude and a flying angle of the UAV of each of photographed pictures when a panoramic photographing process is performed; performing an image stitching process, determining overlapped regions of the two photographed pictures, and obtaining a feature operation region by way of division according to the flying altitude and the flying angle of the UAV; and performing a feature operation in the overlapped regions of the two photographed pictures to determine an image stitching location, and thus generate a panoramic picture.

Abstract: A panoramic photographing method for an unmanned aerial vehicle (UAV) and an UAV using the same are provided. The panoramic photographing method includes steps of: disposing a digital camera on an UAV; recording a flying altitude and a flying angle of the UAV of each of photographed pictures when a panoramic photographing process is performed; performing an image stitching process, determining overlapped regions of the two photographed pictures, and obtaining a feature operation region by way of division according to the flying altitude and the flying angle of the UAV; and performing a feature operation in the overlapped regions of the two photographed pictures to determine an image stitching location, and thus generate a panoramic picture.

Abstract: A method used in an interactive device and for recognizing a behavior of a user operating on the interactive device includes: capturing a plurality of images; forming a plurality of polygon images corresponding to the plurality of captured images according to a skin-tone model; and performing a function by analyzing the plurality of polygon images.

Abstract: An image processing device including an image sensor array, an image pre-processing unit, a depth information generator, and a focusing unit is provided. The image sensor array takes multiple images of a first object and a second object. The image pre-processing unit processes the images to generate two shift images associated with the two objects. The depth information generator generates depth information according to the two shift images. The depth information includes distance information associated with the first object. The focusing unit generates a pair of focused images that have the first object focused thereon according to the depth information and the two shift images.

Abstract: A direction control method for the self-balancing electric vehicle and electric vehicle using the same are disclosed in the present invention.

Abstract: A portable electronic device includes a power management unit, a sense module, a receiver module and an application processor. The sense module powered by a first operating voltage from the power management unit provides a first control signal in response to a sense event when the portable electronic device is in a sleep mode. The receiver module is powered by a second operating voltage from the power management unit in response to the first control signal. When the receiver module is powered by the second operating voltage, the receiver module obtains and recognizes an input event and provides a second control signal when the input event is recognized. The application processor is powered by a third operating voltage from the power management unit in response to the second control signal.

Abstract: A portable electronic device includes a power management unit, a sense module, a receiver module and an application processor. The sense module powered by a first operating voltage from the power management unit provides a first control signal in response to a sense event when the portable electronic device is in a sleep mode. The receiver module is powered by a second operating voltage from the power management unit in response to the first control signal. When the receiver module is powered by the second operating voltage, the receiver module obtains and recognizes an input event and provides a second control signal when the input event is recognized. The application processor is powered by a third operating voltage from the power management unit in response to the second control signal.

Abstract: An image processing device including an image sensor array, an image pre-processing unit, a depth information generator, and a focusing unit is provided. The image sensor array takes multiple images of a first object and a second object. The image pre-processing unit processes the images to generate two shift images associated with the two objects. The depth information generator generates depth information according to the two shift images. The depth information includes distance information associated with the first object. The focusing unit generates a pair of focused images that have the first object focused thereon according to the depth information and the two shift images.

Abstract: A method used in an interactive device and for recognizing a behavior of a user operating on the interactive device includes: capturing a plurality of images; forming a plurality of polygon images corresponding to the plurality of captured images according to a skin-tone model; and performing a function by analyzing the plurality of polygon images.

Abstract: A data synchronization apparatus is provided. The data synchronization apparatus comprises a first-in first-out buffer (FIFO buffer), a control circuit and a phase-locked loop (PLL). The FIFO buffer receives and stores a plurality of data and provides a FIFO adjustment signal according to the number of the data stored in the FIFO buffer. The data stored in the FIFO buffer are sent out to an external device at a clock rate derived from a master clock signal. The control circuit provides a PLL adjustment signal according to the FIFO adjustment signal. The PLL provides the master clock signal and adjusts the frequency of the master clock signal in response to the PLL adjustment signal.

Abstract: A data synchronization apparatus is provided. The data synchronization apparatus comprises a first-in first-out buffer (FIFO buffer), a control circuit and a phase-locked loop (PLL). The FIFO buffer receives and stores a plurality of data and provides a FIFO adjustment signal according to the number of the data stored in the FIFO buffer. The data stored in the FIFO buffer are sent out to an external device at a clock rate derived from a master clock signal. The control circuit provides a PLL adjustment signal according to the FIFO adjustment signal. The PLL provides the master clock signal and adjusts the frequency of the master clock signal in response to the PLL adjustment signal.

Abstract: A data rate controller and a method of control thereof. The invention presents a data rate controller to control data transmission between a host and a function device via a buffer by providing an interrupt device to provide feedback of a buffer status of the buffer to the host to control data rate. The invention prevents buffer under run and overrun in isochronous transfers due to clock mismatches. The data rate controller includes an interrupt device, and an isochronous device that consists of a buffer and a buffer monitor.