Abstract: A limit switch control device comprises a shaft, a sensor, an upper limit reed switch, a lower limit reed switch and a drive element that cooperate with a control circuit. The sensor is combined on the shaft which is driven by the drive element, which is provided with an upper limit witch and a lower limit switch, so that when the sensor detects the upper limit and the lower limit reed switches, the upper and the lower limit switches will be triggered to power off the drive element.

Abstract: An electronic signature verification method implemented by SKI infrastructure adopts a secret key infrastructure (SKI) system for registering a secret key and issuing a signature key and a verification key. After a signer has completed a signature, a signature data, a verification data and a verification key encrypted by the secret key of a signature verification unit are sent to a recipient. After the recipient has received the data, a user needs to send the verification data and the encrypted verification key to a signature verification unit if the user wants to confirm the signature on the signature data. The signature verification unit uses a secret key authorized by the SKI for the decryption to obtain the verification key and uses the verification key to verify the verification data and confirm the existence of the signature of the signature data, so as to authenticate the signature of the signature data.

Abstract: An apparatus and method for testing an integrated circuit in a target electronic application, wherein the apparatus includes a socket for receiving the integrated circuit, a modified commercial electronic product which models the target electronic application, and an electrical connection between the socket and the modified commercial electronic product. The method of testing an integrated circuit includes placing an integrated circuit in a socket that is coupled to a circuit board substantially identical to that of a circuit board configured to include the integrated circuit, but which does not include the integrated circuit, and testing the integrated circuit. A method of making such a tester mechanically attaching a socket to a modified commercial electronic product and electrically connecting an integrated circuit and the modified commercial electronic product. This approach allows for cheaper, more comprehensive, and more accurate testing of an integrated circuit.

Abstract: An interlocking device for controlling clockwise and counterclockwise rotation of a motor is connected with a clockwise rotation module and a counterclockwise rotation module at both ends thereof to form a loop by cooperating with a power-supply terminal and an earth terminal. The clockwise rotation module includes a clockwise rotation trigger switch and a clockwise rotation relay. The counterclockwise rotation module includes a counterclockwise rotation trigger switch and a counterclockwise rotation relay. By such arrangements, the loop collision caused by mis-touch can be avoided by a cross connection of the clockwise and counterclockwise rotation relays with the clockwise and counterclockwise rotation trigger switches, thus preventing the man-made careless mistake and maintaining the smoothness of the operation.

Abstract: A limit switch control device comprises a shaft, a sensor, an upper limit reed switch, a lower limit reed switch and a drive element that cooperate with a control circuit. The sensor is combined on the shaft which is driven by the drive element, which is provided with an upper limit witch and a lower limit switch, so that when the sensor detects the upper limit and the lower limit reed switches, the upper and the lower limit switches will be triggered to power off the drive element.

Abstract: An interlocking device for controlling clockwise and counterclockwise rotation of a motor is connected with a clockwise rotation module and a counterclockwise rotation module at both ends thereof to form a loop by cooperating with a power-supply terminal and an earth terminal. The clockwise rotation module includes a clockwise rotation trigger switch and a clockwise rotation relay. The counterclockwise rotation module includes a counterclockwise rotation trigger switch and a counterclockwise rotation relay. By such arrangements, the loop collision caused by mis-touch can be avoided by a cross connection of the clockwise and counterclockwise rotation relays with the clockwise and counterclockwise rotation trigger switches, thus preventing the man-made careless mistake and maintaining the smoothness of the operation.

Abstract: A charging method for a lead-acid battery allows the lead-acid battery to finish charging within an hour, and keeps the temperature of the lead-acid battery below 40 C. The charging method comprises three important parts, which are charging period, rest period, and discharging period. The three parts cooperate together to achieve an objective that allows the lead-acid battery to finish charging within an hour, and keeps the temperature of the lead-acid battery below 40° C., otherwise the service life of the lead-acid battery will be shortened, and the lead-acid battery will even be destroyed.

Abstract: A wireless control system for controlling linear actuators comprises at least: a plurality of linear actuators, a plurality of control equipments, and at least one wireless controller. The respective linear actuators are assembled on an automatic machine after being connected to a control equipment. The wireless controller and the respective control equipments are provided with a two-way sequence transmitting and receiving assembly which complies with IEEE 802. The wireless control system avoids the use of control boxes and wires while increasing the additional value. Further, the two-way sequence transmitting and receiving assembly ensures the operation status of between the wireless controller and the respective linear actuators, and prevents the direction problem of the wireless control.

Abstract: In a method for inputting a long sentence into a conversion function to generate an account password, the long sentence is used as an input seed, and the seed is inputted into a pseudorandom function to generate a password; wherein the sentence is selected, obtained, remembered easily, and the sentence is modified as an input seed, and a one-way hash function is used as a basic pseudorandom function such as a poem: “Mountains cover the white sun, And oceans drain the golden river; But you widen your view three hundred miles, By going up one flight of stairs.” for a function seed input, and users can make different setting such as changing “golden river” into “Yangtze River” or adding a date of change or adding a server name to improve the level of difficulty of the function seed.

Abstract: An apparatus and method for testing an integrated circuit in a target electronic application, wherein the apparatus comprises a socket for receiving the integrated circuit, a modified commercial electronic product which models the target electronic application, and an electrical connection between the socket and the modified commercial electronic product. The method of testing an integrated circuit comprises placing an integrated circuit in a socket that is coupled to a circuit board substantially identical to that of a circuit board configured to include the integrated circuit, but which does not include the integrated circuit, and testing the integrated circuit. A method of making such a tester mechanically attaching a socket to a modified commercial electronic product and electrically connencting an integrated circuit and the modified commercial electronic product. This approach allows for cheaper, more comprehensive, and more accurate testing of an integrated circuit.

Abstract: An electronic device is provided. The electronic device includes a housing and a thermal module. The housing includes an upper shell and a bottom shell. The thermal module is disposed inside the housing. The thermal module includes a first casing and a first block component. The first casing has a first wind opening. The first block component is disposed between the first casing and one of the upper shell or the bottom shell, and is disposed close to the first wind opening for preventing particles from entering the electronic device through the interval between the first casing and the housing.

Abstract: A table look-up method for ASN.1 encoding/decoding systems is disclosed. Once the invention receives input data, it adds a specified index to the received data, then it analyzes whether the received data contains explicit reference data, implicit reference data or optional data. The invention further modifies the specified index of explicit, implicit or optional data. It compares the consistency of the modified specified index with the specified index in a reference table; if it is consistent, it declares the input data being fully decoded. The conventional method has four main steps: (1). Updating definition data. (2). Executing program generator. (3). Redoing encoding and decoding. (4). Applying new function. This invention simplifies the method into two main steps: (1). Updating definition data. (2). Applying new function. Furthermore, this method does not need to modify program for encoding/decoding a file. This method simplifies the conventional flow process for handling the tabulated data file.

Abstract: This invention applies a specified index method for Abstract Syntax Notation One (ANS.1) encoding systems. Its procedure includes receiving input data, adding specified indices to the data and determining if the data consists of an omitted optional item or an omitted default item. If so, it modifies the specified index of the optional/default item. It then adds, updates, inserts or deletes the data directly. And it adjusts the code of the modified data according to the specified index, and outputs the newly encoded data. This invention can be used in the electronic/digital signature applications, such as cosigns or countersigns which need timely encoding data inputs from multiple entities. The new method can save the memory space and speed up the processing time since it does not need completely decoding and encoding the whole input data.

Abstract: A table look-up method for ASN.1 encoding/decoding systems is disclosed. Once the invention receives input data, it adds a specified index to the received data, then it analyzes whether the received data contains explicit reference data, implicit reference data or optional data. The invention further modifies the specified index of explicit, implicit or optional data. It compares the consistency of the modified specified index with the specified index in a reference table; if it is consistent, it declares the input data being fully decoded. The conventional method has four main steps: (1). Updating definition data. (2). Executing program generator. (3). Redoing encoding and decoding. (4). Applying new function. This invention simplifies the method into two main steps: (1). Updating definition data. (2). Applying new function. Furthermore, this method does not need to modify program for encoding/decoding a file. This method simplifies the conventional flow process for handling the tabulated data file.

Abstract: A portable computer includes a main board casing that confines a receiving space therein, and that has a rear end coupled pivotally to a display casing, and a top side formed with a keyboard receiving recess. A main board module is received in the receiving space. A keyboard device is disposed removably in the keyboard receiving recess, and includes abase member, a keyboard circuit disposed on a top side of the base member, and a plurality of keys disposed on top of the keyboard circuit and operably associated with the keyboard circuit so as to enable the keyboard circuit to generate a corresponding keyboard signal upon operation of one of the keys.

Abstract: A modular portable computer includes a housing, a signal transmission circuit board unit mounted in the housing, a power supply unit mounted on the housing and connected electrically to the circuit board unit, a display unit coupled pivotally to the housing and connected electrically to the circuit board unit, a keyboard module mounted on the housing and connected electrically to the circuit board unit, and a main board module which includes a casing unit mounted removably in the housing, and a processing unit, a memory module and a data storage medium that are mounted in the casing unit. The main board module further includes a connector unit for connecting electrically the main board module with the power supply unit, the display unit and the keyboard module via the circuit board unit when the main board module is disposed in the housing.