Abstract: A DC/DC converter includes a soft start overshoot prevention mechanism. The DC/DC converter includes a DC/DC conversion circuit, an overshoot detection apparatus, a pulse width modulation generator, an error amplifier, and an integration circuit connected to an output port of the error amplifier. The integration circuit is configured to perform integration processing on a difference between a reference voltage and an output voltage of the DC/DC conversion circuit, and control an amplitude of an amplified voltage that is input by the error amplifier to the pulse width modulation generator. The overshoot detection apparatus obtains an operating status parameter of the DC/DC converter, and controls, when the operating status parameter of the DC/DC converter meets an operating status parameter requirement, the integration circuit to discharge.

Abstract: A system includes an interface receiving a search print record including a first direction image of a search print and a file print record including a second direction image of a file print, and a processing device. The processing device performs a method and a computer-readable storage medium stores code for programming a computer to perform the method, which includes: aligning the first and second direction images to identify an overlapping and a non-overlapping area; comparing block direction between the first and second direction images within the overlapping area; performing a rationality analysis on the aligned direction images to at least determine whether one of the direction images and the non-overlapping area of the other direction image are from a different finger; and generating a similarity score based on the block direction comparison and the rationality analysis, which indicates a measure of similarity between the search and file prints.

Abstract: A print identification system performs the following: comparing a primary search print to each of a plurality of file print to generate a primary sorted match report having a first set of file IDs each associated with a first match score; applying a decision logic to the first match scores to determine a status of the corresponding file prints a strong match, a possible match or no match to the search print; for each file print identified as a strong match, compare that file print against file prints identified as a possible match or no match to generate a sub-match report including at least a portion of the first set of file IDs each associated with a second match score; and modifying the primary sorted match report based on at least one of the second match scores to generate a final sorted match report.