Abstract: An electronic device includes a panel, a main body, a button, and a fastener. The panel defines a hole. The main body defines a quadrate through hole. The button resists against the panel, opposite to the main body. The fastener includes an elastic head at a first end and a block at an opposite second end. The elastic head passes through the hole of the panel to be fixed to the button, the block passes through the quadrate through hole of the main body. A panel fixture for the electronic device is provided as well.

Abstract: An apparatus includes container. The container includes a polygonal bottom panel comprising of N sides, N sidewalls and N flaps. Each flap is located between two adjacent sidewalls. The flaps are capable of unfolding to increase the volume of the container. N is a positive integer greater than two.

Abstract: A repair device for a PCB includes a clamp portion having a plurality of receptacles defined therein, a connector head having a plurality of contacts configured to connect with the PCB, a plurality of conductive lines arranged side by side, and a lead wire. One end of each of the conductive lines is connected to the clamp portion and exposed to outside of the clamp portion via a corresponding receptacle of the clamp portion, the other end of each of the conductive lines is connected to a corresponding contact of the connector head. Two ends of the lead wire are electrically connected to two of the conductive lines via the corresponding receptacles, thereby switching signal transmission from one of the input terminals of the PCB to another input terminal of the PCB.

Abstract: A measuring apparatus is provided for measuring a diameter of a hole. The measuring apparatus includes a sensor unit, a data processing unit, and a display unit. The sensor unit includes a probing member. The probing member includes a plurality of probes with contact ends being arranged on a circumference, and a plurality of angle sensors. The probes are capable of contacting the inner surface of the hole. The angle sensors are arranged on each of the probes to obtain digitally an angle value of each splaying probe contacting the inner surface of the hole. The data processing unit is configured for receiving the angle value generated by the sensor unit and computing the diameter of the hole according to the value of an angle. The display unit is configured for displaying the diameter computed by the data processing unit. A method is also provided for using the measuring apparatus.

Abstract: An electronic device includes a panel, a main body, a button, and a fastener. The panel defines a hole. The main body defines a quadrate through hole. The button resists against the panel, opposite to the main body. The fastener includes an elastic head at a first end and a block at an opposite second end. The elastic head passes through the hole of the panel to be fixed to the button, the block passes through the quadrate through hole of the main body. A panel fixture for the electronic device is provided as well.

Abstract: A fixing unit that includes a sleeve assembly defining a through hole along an axis thereof, and an assembly slidably received in the through hole. The assembly includes first and second end. An elastic claw extends from the first end. The second end can be actuated by a user. The elastic claw is biased towards an open state. The fixing unit moves between a first and a second position. In the first position, the elastic claw is received in the sleeve assembly and contracts. In the second position the elastic claw extends out of the sleeve assembly and expands. When the first end is pressed for the first time, the fixing unit is moved from the first position to the second position, and when the first end is pressed for the second time, the fixing unit is moved from the second position to the first position.

Abstract: A position-determining system for determining position and orientation of an object on a work surface parallel to an X-Y plane of a Cartesian coordinate system includes an image-capturing device, a processor and a recognition assistant. The image-capturing device is directed towards the work surface for capturing images of the object and sending the images to the processor. The processor processes the images captured by the image-capturing device. The recognition assistant is attached on the object. The recognition assistant includes a first recognition assistant part and a second recognition assistant part configured to be readily recognizable in an image examined by the processor. Then the processor determines position and orientation of the object via a template matching algorithm.

Abstract: An exemplary multi-window display control system comprises: a read module, a display module, and a display; the method for presenting a multi-window display is also provided, the method comprising: reading the size of a display by a read module; sending the size of the display to a display module; displaying two or more display areas on a display according to a predetermined ratio; and presenting one or more functional units in each of the display area. The multi-window display control system and the method for presenting a multi-window method can provide two or more display areas on an electronic platform simultaneously, as well as provide functional unit windows in the corresponding display areas, which improve the speed and convenience of the operation.

Abstract: An apparatus for separating springs includes a hollow casing, first and second tubes, and a plate. The casing defines an entrance hole allowing springs to enter, and an exit hole allowing springs to exit. The first tube has one end connected to a bottom of the casing, allowing gas to be introduced into the casing. The second tube has one end connected to a middle of the casing opposite to the hole, allowing gas to be introduced into the casing. The plate is fixed to the bottom of the casing for supporting the springs. The plate is ventilated, and is located above the end of the first tube.

Abstract: A measuring apparatus is provided for measuring a diameter of a hole. The measuring apparatus includes a sensor unit, a data processing unit, and a display unit. The sensor unit includes a probing member. The probing member includes a plurality of probes with contact ends being arranged on a circumference, and a plurality of angle sensors. The probes are capable of contacting the inner surface of the hole. The angle sensors are arranged on each of the probes to obtain digitally an angle value of each splaying probe contacting the inner surface of the hole. The data processing unit is configured for receiving the angle value generated by the sensor unit and computing the diameter of the hole according to the value of an angle. The display unit is configured for displaying the diameter computed by the data processing unit. A method is also provided for using the measuring apparatus.

Abstract: An apparatus includes container. The container includes a polygonal bottom panel comprising of N sides, N sidewalls and N flaps. Each flap is located between two adjacent sidewalls. The flaps are capable of unfolding to increase the volume of the container. N is a positive integer greater than two.

Abstract: The present invention relates to a method for debugging a programmable logic controller. An invariant logic formula is set up. A program is checked by the invariant logic formula, and if the program satisfies the invariant logic formula, debugging is complete and the process returns to the program checking step. If the program does not satisfy the invariant logic formula, checking is stopped and a warning signal and position or timing of the program error are issued.

Abstract: The present invention relates to a method of generating a pulse for a digital differential analyzer. The digital differential analyzer includes a counter, a shift register and an adder with a comparator. The beginning number P of the shift register, the beginning number L of the comparator, and the beginning number Q of the counter, are all set, according to the formula Q=int(0.5L+0.5). A pulse command is inputted into the shift register. The number of the shift register and the number of the counter are added. The sum of the addition step is compared to the number of the comparator. If the sum is greater than or equal to the number of the comparator, the digital differential analyzer generates a pulse.

Abstract: An exemplary data transmission method is used in a data transmission system which has a data source, a data receiver, first, second, and third transmission lines connected between the data source and the data receiver. The data transmission method includes: the data source generating a checking code of a first byte and a second byte; transmitting the first byte, the second byte and the checking code from the data source to the data receiver via the first, second, and third transmission lines respectively; and the data receiver judging if the first byte, the second byte and the checking code are right, if right, transmission of the first byte and the second byte is complete, if one of the first byte and the second byte is wrong, and the checking code is right, the data receiver corrects the wrong byte via the checking code.

Abstract: A repair device for a PCB includes a clamp portion having a plurality of receptacles defined therein, a connector head having a plurality of contacts configured to connect with the PCB, a plurality of conductive lines arranged side by side, and a lead wire. One end of each of the conductive lines is clamped by the clamp portion and exposed to outside of the clamp portion via a corresponding receptacle of the clamp portion, the other end of each of the conductive lines is connected to a corresponding contact of the connector head. Two ends of the lead wire are electrically connected to two of the conductive lines via the corresponding receptacles, thereby switching signal transmission from one of the input terminal of the PCB to another input terminal of the PCB.