Abstract: An inversion maintenance device has a case, an inverting mechanism, and a control system. The case forms an inversion space. The inverting mechanism has an inverting base and multiple adapting modules. The inverting base is pivotally mounted in the inversion space. The adapting modules are mounted on the inverting base. Each of the adapting modules has an adapting port. The inverting base is capable of inverting to make the adapting port face downward and cover the inversion space. Dental handpieces can be mounted on the adapting modules. The control system has a control module and an operation input terminal. The operation input terminal is electrically connected to the control module and is capable of controlling the control module to inject a working fluid with pressure into the dental handpiece via the adapting module.

Abstract: An intelligent rescue method applied to a vehicle-mounted device and an airborne rescue device to enable semi-automatic warning and rescue of a broken-down, crashed, drowned, or stranded vehicle, enables communication between the vehicle-mounted device and the rescue device. The vehicle-mounted device determines by sensors a type of emergency of a vehicle, and performs a first assistance action and sends the rescue device a distress signal corresponding to the type of the emergency of the vehicle. The rescue device receives the distress signal and takes off from an initial position of the vehicle to a target position in response to the distress signal. Once the rescue device reaches the target position, the rescue device performs a second action for assistance.

Abstract: A driving record authentication method is provided. The method includes acquiring historical driving records of a driver and associated records of the driver. Once a non-fungible token image of the driver is minted based on the historical driving records and the associated records, the non-fungible token image is transmitted to a user terminal in response to a query request associated with the driver that sent the user terminal.

Abstract: An intelligent rescue method applied to a vehicle-mounted device and an airborne rescue device to enable semi-automatic warning and rescue of a broken-down, crashed, drowned, or stranded vehicle, enables communication between the vehicle-mounted device and the rescue device. The vehicle-mounted device determines by sensors a type of emergency of a vehicle, and performs a first assistance action and sends the rescue device a distress signal corresponding to the type of the emergency of the vehicle. The rescue device receives the distress signal and takes off from an initial position of the vehicle to a target position in response to the distress signal. Once the rescue device reaches the target position, the rescue device performs a second action for assistance.

Abstract: An inversion maintenance device has a case, an inverting mechanism, and a control system. The case forms an inversion space. The inverting mechanism has an inverting base and multiple adapting modules. The inverting base is pivotally mounted in the inversion space. The adapting modules are mounted on the inverting base. Each of the adapting modules has an adapting port. The inverting base is capable of inverting to make the adapting port face downward and cover the inversion space. Dental handpieces can be mounted on the adapting modules. The control system has a control module and an operation input terminal. The operation input terminal is electrically connected to the control module and is capable of controlling the control module to inject a working fluid with pressure into the dental handpiece via the adapting module.

Abstract: A method of identifying vehicles for parking management purposes marks out a parking fee paid or unpaid status when a target vehicle exits a parking area, the vehicle information comprising first and second license plate numbers. The first license plate number being entered by a vehicle-user, and the second license plate number being the license plate number as recognized from a first image taken by the parking system when the target vehicle enters the parking area. A third license plate number is taken from an image of the target vehicle when driving out of the parking area. The third license plate number is compared with first or second license plate number, and if the comparison is met, outputting a release instruction to a gate to release the target vehicle. The disclosure also provides an electronic device.

Abstract: A device verification system includes an operation panel, a computer coupled to the operation panel, and a server coupled to the computer. The operation panel includes an image acquisition unit. The computer receives an image of an operator acquired by the image acquisition unit and acquires a facial image of the operator from the image. The server receives the facial image from the computer. The server stores a facial image of an authorized operator and is configured to compare the received facial image to the stored facial image to determine whether the operator is verified.

Abstract: A method to prevent a double spend attack in cryptocurrency transactions recorded in a blockchain can be applied in a device. The device acquires transaction information, the information comprising a type of virtual currency and a transaction amount, and acquires currency price according to the virtual currency type. The device further calculates a transaction value according to the currency price and the transaction amount of the virtual currency, calculates a unit attack cost corresponding to a blockchain network of the virtual currency, adjusts a quantity of the records indicating that a transaction is recorded by the blockchain network to make a total attack cost greater than a transaction value of the transaction, and transmits transaction information of the transaction to the blockchain network.

Abstract: A credit card transaction device fortified against fraudulent use includes a display screen and a processor. A method disclosed for the device and for a server in communication with the device includes obtaining basic information of a credit card and an image of a user; analyzing whether the image includes a face; extracting facial features from the image when the image includes the face; determining whether the facial features and the basic information are consistent with a basic information and facial features of a legitimate user which are stored. When the facial features and the basic information are consistent with the stored data, a password verification interface is provided and an entered password is verified with the stored password for consistency. The credit card transaction is performed when the entered password matches the stored password.

Abstract: A network connection retrieving method and a network system are provided. The method is adapted for retrieving connections between network devices by a master device among network devices in a local area network, and includes: attempting to establish the connection with a current device according to a pre-recorded network address of the current device; sending a plurality of broadcast packets to each of the network devices in the local area network if the step of establishing the connection failed, and collecting a response message returned from each of the network devices in response to the broadcast packets; and identifying the response message returned from the current device by comparing unique identification information recorded in each of the response messages with pre-recorded unique identification information of each of the network devices, and using the network address recorded in the response message to re-establish the connection with the current device.

Abstract: A device verification system includes an operation panel, a computer coupled to the operation panel, and a server coupled to the computer. The operation panel includes an image acquisition unit. The computer receives an image of an operator acquired by the image acquisition unit and acquires a facial image of the operator from the image. The server receives the facial image from the computer. The server stores a facial image of an authorized operator and is configured to compare the received facial image to the stored facial image to determine whether the operator is verified.

Abstract: A camera calibration system includes a server, a camera communicatively coupled to the server, a drone communicatively coupled to the server, and an identification pattern coupled to the drone. The server controls the drone to fly in front of the camera at a calibration distance according to position and orientation information of the camera and position information and a distance setting rule of the drone, controls the camera to acquire at least one image of the identification pattern at each of the plurality of positions, and obtains parameters of the camera by performing calibration on the camera according to the acquired plurality of images. The drone flies in a number of positions at the calibration distance and flies in at least one plane.

Abstract: A network connection retrieving method and a network system are provided. The method is adapted for retrieving connections between network devices by a master device among network devices in a local area network, and includes: attempting to establish the connection with a current device according to a pre-recorded network address of the current device; sending a plurality of broadcast packets to each of the network devices in the local area network if the step of establishing the connection failed, and collecting a response message returned from each of the network devices in response to the broadcast packets; and identifying the response message returned from the current device by comparing unique identification information recorded in each of the response messages with pre-recorded unique identification information of each of the network devices, and using the network address recorded in the response message to re-establish the connection with the current device.

Abstract: An earphone capable of reducing pressure in the ear canal and providing enhanced sound quality is provided along with a method for making the same. The earphone includes an earphone body penetrated by an air channel and having a receiving space receiving a vibrating membrane. A loudspeaker is provided in the receiving space and corresponds to the vibrating membrane. When the earphone is worn in the ear, the ear canal is in communication with the outside through the air channel so that acoustic waves generated by the vibrating membrane and reflected by the eardrum can propagate out of, rather than back and forth within, the ear canal. Thus, the eardrum is safe from an abnormal pressure otherwise attributable to repeatedly reflected acoustic waves, and the vibrating membrane is protected from a compressive force that may otherwise result from reflected acoustic waves and cause sound distortion.

Abstract: An earphone capable of reducing pressure in the ear canal and providing enhanced sound quality is provided along with a method for making the same. The earphone includes an earphone body penetrated by an air channel and having a receiving space receiving a vibrating membrane. A loudspeaker is provided in the receiving space and corresponds to the vibrating membrane. When the earphone is worn in the ear, the ear canal is in communication with the outside through the air channel so that acoustic waves generated by the vibrating membrane and reflected by the eardrum can propagate out of, rather than back and forth within, the ear canal. Thus, the eardrum is safe from an abnormal pressure otherwise attributable to repeatedly reflected acoustic waves, and the vibrating membrane is protected from a compressive force that may otherwise result from reflected acoustic waves and cause sound distortion.

Abstract: A method of image processing, the method comprising receiving an image frame including a plurality of pixels, each of the plurality of pixels including an image information, conducting a first extraction based on the image information to identify foreground pixels related to a foreground object in the image frame and background pixels related to a background of the image frame, scanning the image frame in regions, identifying whether each of the regions includes a sufficient number of foreground pixels, identifying whether each of regions including a sufficient number of foreground pixels includes a foreground object, clustering regions including a foreground object into at least one group, each of the at least one group corresponding to a different foreground object in the image frame, and conducting a second extraction for each of at least one group to identify whether a foreground pixel in the each of the at least one group is to be converted to a background pixel.

Abstract: A method for designing a grating comprises steps of (a1) generating a first diffraction spectrum based on calculation values of a plurality of structural parameters, (a2) calculating a first difference value between the first diffraction spectrum and a first nominal spectrum, (a3) setting a default difference value with the first difference value and default structural parameter values with the structural parameter values, (b1) changing one of the structural parameter values to generate a second diffraction spectrum, (b2) calculating a second difference value between the second diffraction spectrum and a second nominal spectrum, and (c) comparing the default difference value and the second difference value, updating a default difference value with the smaller one, and updating the default structural parameter values with the structural parameter values corresponding to the smaller one.

Abstract: A safety container for a scalp vein needle has a base, a cap and a covering sheet. The base has an inlet, an outlet and a recess communicating with the inlet and the outlet. The cap connects to and selectively covers the base and has a corresponding inlet, a corresponding outlet, a corresponding recess and a through hole aligning with the outlet. The covering sheet connects to and selectively covers the cap and has two stops selectively extending into the through hole in the cap. The scalp vein needle assembly has a feeding tube, a flange and a scalp vein needle. The feeding tube is mounted in the recesses and is selectively held by the stops on the cap or is slidable in the recesses.

Abstract: A system for transferring information that includes a collection module configured to authenticate a user identifier if the user identifier is unique in the system, the user identifier being related to identity of the user, generate an encrypted object based on at least the user identifier and at least one webpage identifier in accordance with an algorithm, each of the at least one webpage identifiers being related to the identity of one of at least one webpages of the user, retrieve the encrypted object from one of the at least one webpages based on one of the at least one webpage identifiers, identify the integrity of the retrieved encrypted object, a management module configured to generate at least one information card based on the at least one webpage identifier in accordance with predetermined rules, a memory module configured to store at least one of the said user identifiers, the at least one webpage identifier and the at least one information card, and a dispatch module configured to dispatch the at

Abstract: A system for webpage verification comprises an authentication module configured to authenticate a user identifier if the user identifier is unique in the system, the user identifier being related to the identity of a user, a data-hiding module configured to generate a first data-hidden object based on a unique user identifier, at least one webpage identifier and a base object in accordance with a data-hiding algorithm, each of the at least one webpage identifiers being related to the identity of one of at least one webpage of the user, a memory module to store at least one of the said user identifier, the at least one webpage identifier, the base object, and the required parameters of data-hiding algorithm, and a verification module configured to retrieve the first data-hidden object from one of the at least one webpage based on one of the at least one webpage identifier, retrieve a user identifier and all of the webpage identifiers from the memory module based on the one webpage identifier, generate a second