Abstract: The invention proposes a method for generating ultrasonic panoramic image and an ultrasonic device. The invention first analyzes the degree of overlap area between two black-and-white images and determines the Doppler signal error of two corresponding color images once the overlap area is large enough. A plurality of black-and-white characteristic images and color characteristic images are then determined from the captured black-and-white images and color images and used for generating a black-and-white panoramic image and a color panoramic image respectively using an image stitching algorithm. The color panoramic image is then overlaid with the black-and-white panoramic image to form an output panoramic image.

Abstract: A signal probing system includes: a probing module, including a transmitting device, a first probing device and a second probing device, wherein the transmitting device is configured to transmit a first signal, the first probing device is coupled to the second probing device, and the first probing device and the second probing device are respectively configured to receive a high frequency reflective signal and a low frequency reflective signal corresponding to the first signal; and a processing module coupled to the probing module, the processing module being configured to process the high frequency reflective signal and the low frequency reflective signal into image signals.

Abstract: An image calibration method of the present invention is configured to calibrate the position of observation area in motion image which includes image frames. The step of the image calibration method includes: determining the observation area and acquires central position of the observation area in first image frame of the motion image; determining first unique area, which complies with gradient characteristic, in the first image frame; acquiring first vector value from the central positions of the observation area to the first unique area in the first image frame; finding second unique area in the second image frame of the motion image according to the gradient characteristic; acquiring second vector value from the central position of the observation area to the central position of the second unique area in the second image frame; and calibrating position of the observation area in a third image frame according to the difference between the first vector and the second vector.

Abstract: An image calibration method of the present invention is configured to calibrate the position of observation area in motion image which includes image frames. The step of the image calibration method includes: determining the observation area and acquires central position of the observation area in first image frame of the motion image; determining first unique area, which complies with gradient characteristic, in the first image frame; acquiring first vector value from the central positions of the observation area to the first unique area in the first image frame; finding second unique area in the second image frame of the motion image according to the gradient characteristic; acquiring second vector value from the central position of the observation area to the central position of the second unique area in the second image frame; and calibrating position of the observation area in a third image frame according to the difference between the first vector and the second vector.

Abstract: The invention proposes a method for generating ultrasonic panoramic image and an ultrasonic device. The invention first analyzes the degree of overlap area between two black-and-white images and determines the Doppler signal error of two corresponding color images once the overlap area is large enough. A plurality of black-and-white characteristic images and color characteristic images are then determined from the captured black-and-white images and color images and used for generating a black-and-white panoramic image and a color panoramic image respectively using an image stitching algorithm. The color panoramic image is then overlaid with the black-and-white panoramic image to form an output panoramic image.

Abstract: The present invention provides an ultrasound system comprises a display and a pointer controller. The pointer controller has a probe head, a control unit and a probe body. The display displays a pointer and an ultrasound image according the ultrasound signals received by the probe head. When pushing a button of the probe body or handling the probe body in a specific manner, the control unit switches the probe head to control the pointer on the display from the scanning the ultrasound image.

Abstract: The invention discloses an image display device and an image processing method thereof. The image display device includes a processing module and a screen electrically connected to the processing module. The processing module receives a series of digital signals and displays an image frame on the screen based on a first signal—gray level relation. An image block is selected from the image frame. The series of digital signals and a subset of digital signals corresponding to the image block correspond to a first and a second gray level ranges, respectively. The first gray level range covers the second gray level range. The processing module generates a second signal—gray level relation based on the second gray level range and re-displays the image block on the screen based on the subset of digital signals and the second signal—gray level relation, so as to enhance the gray level resolution of the image block.

Abstract: A method for effectively re-downloading data to a Field Programmable Gate Array (FPGA). The method uses two Complex Programmable Logic Devices (CPLDs) to implement control functions of Write-to-Non-Volatile Random Access Memory (NVRAM) and Write-to-FPGA respectively, in conjunction with a set of connectors with a detection circuit, such that according to a detection state output by the detection circuit to one CPLD implemented with Write-to-FPGA control function, a write-to-NVRAM operation for data is determined if the detection state is logic low and conversely data is written from the NVRAM to the FPGA.

Abstract: The present invention is related to a mobile device having a built-in charging circuit that is able to charge another mobile device by providing a charging voltage to that mobile device via an external voltage regulation module connecting to that mobile device. The charging circuit comprises: a charging/discharging terminal for connecting to a connecting port of another mobile device to proceed with an operation of charging/discharging; a protection circuit for protecting the charging circuit from damage by power overload; a current detection circuit for detecting the current value flowing in the charging circuit; a current direction control circuit for regulating the current flowing in the circuit according to the current value detected by the current detection circuit so as to restrict the current flowing in the circuit to be within the range of an ordinate operating current value; a battery.

Abstract: A method and circuit for performing an on-board test of connections between field programmable gate arrays (FPGAs) By the method, circuit structures can be adjusted according to the width of a bus, simplifying connection testing between on-board FPGAs. Moreover, bus quality and speed can be functionally tested by the method. Because FPGAs are reprogrammable, the present invention can be employed without additional cost.

Abstract: A method for effectively re-downloading data to a Field Programmable Gate Array (FPGA). The method uses two Complex Programmable Logic Devices (CPLDs) to implement control functions of Write-to-Non-Volatile Random Access Memory (NVRAM) and Write-to-FPGA respectively, in conjunction with a set of connectors with a detection circuit, such that according to a detection state output by the detection circuit to one CPLD implemented with Write-to-FPGA control function, a write-to-NVRAM operation for data is determined if the detection state is logic low and conversely data is written from the NVRAM to the FPGA.