Abstract: The disclosure is directed to a power management method and an ultrasound apparatus using the same. The ultrasound apparatus includes an ultrasound probe, an TRX circuit, a position sensor, and a processor. In the disclosure, power is supplied to the ultrasound apparatus, and an ultrasound scanning is performed. During the ultrasound scanning, position information of the ultrasound probe is being continuously detected by the position sensor. Whether the ultrasound probe is in a static state during the ultrasound scanning is determined. When determined that the ultrasound probe is in the static state during the ultrasound scanning, a power saving mode is entered, such that the ultrasound scanning is stopped. Within the power saving mode, the position information is continuously detected. Whether the ultrasound probe is still in the static state under the power saving mode is determined.

Abstract: A no-touch surgical navigation method for guiding a surgical instrument corresponding to a part of a patient's anatomy is provided. An image registration step is for matching the preoperative implant device planning image and the part of the patient's anatomy via a spatial coordinate transformation relationship. An instrument checking step is for identifying the surgical instrument, and then calibrating a size of the surgical instrument to display an instrument tip mark on the displaying device. An implant device placement selecting step is for moving the surgical instrument by a user, and then the instrument tip mark is synchronously moved with the surgical instrument to select a virtual surgical instrument pattern. A skin incision and trajectory guiding step is for moving the surgical instrument according to a skin incision and trajectory guiding picture so as to move the instrument tip mark close to a planned surgical position.

Abstract: An automatic white balance (AWB) method is performed on an image to adjust color gains of the image. The image is pre-processed into a set of pre-processed pixels, each of which represented by tricolor values that include a red (R) value, a green (G) value and a blue (B) value. For each candidate illuminant in a set of candidate illuminants, an indicator value that has a diffuse component and a specular component is calculated. One of the candidate illuminants is identified as a resulting illuminant, for which the indicator value is the minimum indicator value among the candidate illuminants. The minimum indicator value corresponds to cancellation of the specular component. The color gains of the image is then adjusted according to color ratios derived from the resulting illuminant.

Abstract: A fingerprint identification device and a method for manufacturing the fingerprint identification device are provided. The fingerprint identification device includes a solder ball array, a re-distribution layer, an image sensing integrated circuit (IC), a light emitting circuit, a photic layer and a molding material. The re-distribution layer disposed on the solder ball array is electrically connected to a plurality of solder balls. The image sensing IC includes a plurality of through silicon vias (TSVs), and the TSVs are correspondingly electrically connected to the solder balls, respectively, through the re-distribution layer. The light emitting circuit is disposed on one side of the image sensing IC, and electrically connected to the image sensing IC through the re-distribution layer. The image sensing IC controls the light emitting circuit. The photic layer is disposed on the image sensing IC. The molding material encloses the image sensing IC.

Abstract: A light locus of an imaging system is generated in a chromaticity space of two dimensions. The light locus represents a collection of candidate illuminants. The imaging system captures a gray-card image under each of N light sources to obtain N points in the chromaticity space, wherein N is a positive integer no less than three. Each point in the chromaticity space is described by a coordinate pair calculated from red (R), green (G) and blue (B) tristimulus values of the point. A second order polynomial function is calculated by curve-fitting the N points, and the light locus is generated to represent the second order polynomial in the chromaticity space. One of the candidate illuminants from the light locus is then identified as an illuminant for an image captured by the imaging system. A method for color transformation between two imaging systems in a chromaticity space is also described.

Abstract: An automatic white balance (AWB) method is performed on an image to adjust color gains of the image. The illuminant of the image is determined among a set of candidate illuminants, where each candidate illuminant is described by a corresponding coordinate pair (p, q) in a chromaticity coordinate system. The illuminant of the image can be determined by calculating an indicator value for each candidate illuminant; determining a threshold for indicator values of the candidate illuminants; identifying a subset of the candidate illuminants that have the indicator values not greater than the threshold; and for all candidate illuminants in the subset, calculating a weighted average of corresponding coordinate pairs to obtain an averaged coordinate pair. Chromatic adaptation of the illuminant in the PQ domain can also be performed on the image.

Abstract: A no-touch surgical navigation method for guiding a surgical instrument corresponding to a part of a patient's anatomy is provided. An image registration step is for matching the preoperative implant device planning image and the part of the patient's anatomy via a spatial coordinate transformation relationship. An instrument checking step is for identifying the surgical instrument, and then calibrating a size of the surgical instrument to display an instrument tip mark on the displaying device. An implant device placement selecting step is for moving the surgical instrument by a user, and then the instrument tip mark is synchronously moved with the surgical instrument to select a virtual surgical instrument pattern. A skin incision and trajectory guiding step is for moving the surgical instrument according to a skin incision and trajectory guiding picture so as to move the instrument tip mark close to a planned surgical position.

Abstract: A pre-planning interface displaying step of a method for verifying panoramic images of implants is for displaying a picture, a menu and a cursor on a screen. An implant trajectory pattern adding step is for moving the cursor to select an implant adding item by a user and then generating the implant trajectory pattern in the picture. An implant trajectory pattern adjusting step is for controlling the cursor to adjust a position of the implant trajectory pattern and then move the implant trajectory pattern from a starting position to a target position in the picture. A panoramic image verifying step is for rotating the surgical site pattern around the implant trajectory pattern at a viewing angle according to the target position and the implant trajectory pattern as a central axis, and the viewing angle is greater than 0 degrees and smaller than or equal to 180 degrees.

Abstract: An ultrasound apparatus and a method of emitting plane wave are provided. The ultrasound apparatus includes an ultrasound probe, a transceiver circuit, a switch module and a processor. The ultrasound probe has a 1st to a Mth transducer elements for respectively emitting ultrasound beams to form the plane wave, and the transceiver circuit has a 1st to a Nth transceiving channels. M, N are positive integers, and M is a multiple of N. During a scanning period, the processor controls the switch module to initially and respectively connect the 1st-Nth transceiving channels to the 1st-Nth transducer elements, such that the 1st-Nth transducer elements successively emit the ultrasound beams. After the ultrasound beam is emitted by the Nth transducer element, the processor controls the switch module to respectively connect the 1st-Nth transceiving channels to the (N+1)th-(2N)th transducer elements, such that the (N+1)th-(2N)th transducer elements successively emit the ultrasound beams.

Abstract: An apparatus for acquiring air quality data from removable and/or replaceable sensor, processing and storing the acquired data, and transmitting the processed data to backend server is enabled. The apparatus includes a microcontroller coupled with a Universal Sensor Interface (USI). The USI may include an element configured to transmit continuous electrical power to a removable and/or replaceable sensor, an element configured to transmit intermittent electrical power during time intervals corresponding to sensing intervals, an element configured to transmit an indication that the removable and/or replaceable sensor is currently coupled with the sensor interface, and one or more elements configured as a serial peripheral interface. A modular sensor system is thereby enabled, configurable to manage multiple removable and replaceable sensors such as air quality sensors.

Abstract: An activity tracking device has a display screen, a data store, a main processor communicatively coupled with the data store, a device profile configuration stored in the data store, and a user profile configuration stored in the data store. The device profile configuration has a device identifier, processor identifiers, and device statuses. The user profile configuration has a user identifier, and a minimum user activity parameter. The minimum user activity parameter is determined based on one or more historical activity parameters resulting from actual user activity as tracked by the activity tracking device, stored in the data store, and configured in the user profile configuration.

Abstract: A variable flow engine oil pump has a first seat, a second seat attached to the first seat, and a regulating valve assembly and a pressurizing assembly mounted in the second seat. An eccentric wheel of the pressurizing assembly meshes with a plug of the regulating valve assembly. With the plug driving the eccentric wheel to rotate by an angle, a volume flow rate of engine oil output by the engine oil pump can be adjusted. Elements used for adjusting the output of the engine oil are reduced, and manufacturing cost and assembling complexity of the engine oil pump are lowered accordingly. Moreover, since the regulating valve assembly drives the pressurizing assembly directly, the regulating valve assembly can drive the pressurizing assembly efficiently.

Abstract: A method for taking photo with an extension flash module of a mobile device is provided in the present invention. The mobile device operates in coordination with an extension flash module to achieve fill light while taking photo. The method includes the following steps: detecting a specific event before a flashable period. The flashable period starts from the time at which a last row of photo sensors begins exposure to the time at which a first row of photo sensors ends exposure. The time at which the specific event occurs is a fixed period of time compared to the flashable time. Then, triggering a flash instruction according to a flash delay time and a period from the time at which the specific event occurs to the flashable time, such that the extension flash module flashes during the flashable time.

Abstract: A three-phase inverting apparatus and a control method and a paralleled power conversion system thereof are provided. The control method is suitable for controlling a three-phase inverter having a plurality of switch sets, a first inductor, a second inductor, and a third inductor. The control method includes following steps: obtaining a DC bus voltage, a plurality of phase voltages, and a plurality of phase currents; obtaining inductances of the first, the second, and the third inductors; calculating a plurality of switch duty ratios by a division-summation control means according to the DC bus voltage, the phase voltages, current variations of the phase currents, the inductances, and a switching cycle based on a sinusoidal pulse width modulation (SPWM); and generating corresponding control signals based on the switch duty ratios so as to control a switching of the switch sets.

Abstract: A method and an associated device construct a uniform color space from raw RGB data without going through any intermediate color space, such as CIEXYZ. A direction and a scale of each of first, second and third perceptual color axes may be determined based at least in part on the characteristics related to the imaging device, such that a first perceptual color axis correlates with lightness, a second perceptual color axis correlates with yellow-blue color variations, and a third perceptual color axis correlates with red-green color variations. The second perceptual color axis may be substantially aligned with typical daylight variation.

Abstract: A three-phase inverting apparatus and a control method and a paralleled power conversion system thereof are provided. The control method is suitable for controlling a three-phase inverter having a plurality of switch sets, a first inductor, a second inductor, and a third inductor. The control method includes following steps: obtaining a DC bus voltage, a plurality of phase voltages, and a plurality of phase currents; obtaining inductances of the first, the second, and the third inductors; calculating a plurality of switch duty ratios by a division-summation control means according to the DC bus voltage, the phase voltages, current variations of the phase currents, the inductances, and a switching cycle based on a sinusoidal pulse width modulation (SPWM); and generating corresponding control signals based on the switch duty ratios so as to control a switching of the switch sets.

Abstract: A method of constructing uniform color space directly from raw camera RGB and associated device is described. The method constructs a uniform color space from raw camera RGB may determine characteristics related to the imaging device. The method may also determine a direction and a scale of each of first, second and third perceptual color axes based at least in part on the characteristics related to the imaging device, such that a first perceptual color axis correlates with lightness, a second perceptual color axis correlates with yellow-blue color variations, and a third perceptual color axis correlates with red-green color variations. The second perceptual color axis may be substantially aligned with typical daylight variation.

Abstract: A variable flow engine oil pump has a first seat, a second seat attached to the first seat, and a regulating valve assembly and a pressurizing assembly mounted in the second seat. An eccentric wheel of the pressurizing assembly meshes with a plug of the regulating valve assembly. With the plug driving the eccentric wheel to rotate by an angle, a volume flow rate of engine oil output by the engine oil pump can be adjusted. Elements used for adjusting the output of the engine oil are reduced, and manufacturing cost and assembling complexity of the engine oil pump are lowered accordingly. Moreover, since the regulating valve assembly drives the pressurizing assembly directly, the regulating valve assembly can drive the pressurizing assembly efficiently.

Abstract: A method for taking photo with an extension flash module of a mobile device is provided in the present invention. The mobile device operates in coordination with an extension flash module to achieve fill light while taking photo. The method includes the following steps: detecting a specific event before a flashable period. The flashable period starts from the time at which a last row of photo sensors begins exposure to the time at which a first row of photo sensors ends exposure. The time at which the specific event occurs is a fixed period of time compared to the flashable time. Then, triggering a flash instruction according to a flash delay time and a period from the time at which the specific event occurs to the flashable time, such that the extension flash module flashes during the flashable time.

Abstract: The present disclosure directs to method, device, system for creating virtual credit card. The method may include: acquiring a subset of real-name information from a user interface of a terminal device; searching the real-name information stored in the first server with the subset of the real-name information; upon the real-name information is found in the first server, sending the real-name user information to a second server; finding whether the real-name information associates with a credit card account stored in the second server; after finding the credit card account is stored in the second server, creating, by the second server, a virtual credit card account; and storing the virtual credit card associated with the virtual credit card account in the data storage of the first server.