Abstract: The invention provides a portable CNC machine, including a body and four anchorage bases. The body is put on a surface of a work frame. The body is provided with a machining tool, a processing module and four take-up and pay-off modules, each take-up and pay-off module takes up and pays off a cable, a tail end of each cable is provided with an anchor, and the processing module is connected to and controls the four take-up and pay-off modules. The four anchorage bases are disposed at four corners of the work frame respectively, and stretch and hang the four anchors thereon respectively. The processing module controls the four take-up and pay-off modules to take up and pay off the cables to control the body to freely move on the work frame, and at the same time, the processing module controls the machining tool to carry out a machining operation.

Abstract: The invention introduces an apparatus for detecting errors during data encryption. The apparatus includes a search circuitry and a substitution check circuitry. The key generation circuitry is arranged operably to convert a first value of one byte corresponding to a plaintext, an intermediate encryption result, or a round key into a second value of a K-bit according to an 8-to-K lookup table, where K is an integer ranging from 10 to 15 and the second value comprises (K minus 8) bits of a Hamming parity. The substitution check circuitry is arranged operably to employ check formulae corresponding to the 8-to-K lookup table to determine whether an error is occurred during a conversion of the first value of the one byte into the second value of the K-bit, and output an error signal when finding the error, where a total amount of the formulae is K minus 8.

Abstract: A device includes a redistribution line, and a polymer region molded over the redistribution line. The polymer region includes a first flat top surface. A conductive region is disposed in the polymer region and electrically coupled to the redistribution line. The conductive region includes a second flat top surface not higher than the first flat top surface.

Abstract: An ultrasonic sensing device includes a housing, a piezoelectric assembly, a board and a plurality of fixing members. The housing includes a bottom wall, a top wall and a surrounding side wall connected between the top wall and the bottom wall. The piezoelectric assembly includes an encapsulating body and a piezoelectric sheet, wherein at least a portion of the piezoelectric sheet is enclosed by the encapsulating body and has a sensing surface exposed to the encapsulating body and facing the bottom wall. The board is disposed on the top wall of the housing and has a pressing surface facing the encapsulating body and the top wall. The plurality of fixing members is configured to fix the board to the top wall of the housing to press the board to the encapsulating body of the piezoelectric assembly, thereby pressing the sensing surface of the piezoelectric sheet to the bottom wall.

Abstract: A method for manufacturing an antenna printed circuit board includes the following steps: providing a flexible-rigid printed circuit board comprising a flexible region and a rigid region. The flexible region comprises at least one first connecting pad and at least one second connecting pad arranged opposite sides of the rigid region. At least one antenna module is attached to the first connecting pad through a conductive paste. The antenna module is fixed on the rigid region by a first reflow soldering process. At least one radio frequency integrated circuit structure is attached to the second connecting pad through a conductive paste. The radio frequency integrated circuit is fixed on the rigid region by a second reflow soldering process. A gap between the antenna module and the rigid region and a gap between the radio frequency integrated circuit structure and the rigid region are filled with dielectric materials and cured.

Abstract: A method for manufacturing an antenna printed circuit board includes the following steps: providing a flexible-rigid printed circuit board comprising a flexible region and a rigid region. The flexible region comprises at least one first connecting pad and at least one second connecting pad arranged opposite sides of the rigid region. At least one antenna module is attached to the first connecting pad through a conductive paste. The antenna module is fixed on the rigid region by a first reflow soldering process. At least one radio frequency integrated circuit structure is attached to the second connecting pad through a conductive paste. The radio frequency integrated circuit is fixed on the rigid region by a second reflow soldering process. A gap between the antenna module and the rigid region and a gap between the radio frequency integrated circuit structure and the rigid region are filled with dielectric materials and cured.

Abstract: In one embodiment, a computer-implemented method, comprising: receiving information from plural patients, the information from each of the plural patients comprising one or more items recorded over a predefined period of time; formatting the items for use in a machine learning algorithm, wherein the formatting comprises: associating each of the one or more items with a respective word; forming a sentence for each of the plural patients from the words; and transforming the sentences for the plural patients into a numerical matrix, wherein the matrix comprises one row per patient and one column per word, each word weighted by occurrence; training models according to the machine learning algorithm based on the formatted items of the plural patients; determining if a first patient should have a hierarchical condition category code by applying one or more formatted items of the first patient to the trained models; and providing a notification of any suspect hierarchical condition category codes based on the applic

Abstract: An ultrasonic sensing device includes a housing, a piezoelectric assembly, a board and a plurality of fixing members. The housing includes a bottom wall, a top wall and a surrounding side wall connected between the top wall and the bottom wall. The piezoelectric assembly includes an encapsulating body and a piezoelectric sheet, wherein at least a portion of the piezoelectric sheet is enclosed by the encapsulating body and has a sensing surface exposed to the encapsulating body and facing the bottom wall. The board is disposed on the top wall of the housing and has a pressing surface facing the encapsulating body and the top wall. The plurality of fixing members is configured to fix the board to the top wall of the housing to press the board to the encapsulating body of the piezoelectric assembly, thereby pressing the sensing surface of the piezoelectric sheet to the bottom wall.

Abstract: A device for generating a duty cycle includes a converter, a corrector, and a control circuit. The converter is configured to generate a first output signal having a duty cycle to an output terminal according to an input signal. The corrector is coupled to the output terminal, and is configured to adjust the duty cycle of the first output signal according to a control signal. The converter is coupled in parallel with the corrector and between a first power source and a second power source. The control circuit is coupled to the output terminal, and is configured to generate the control signal according to the first output signal and a reference signal.

Abstract: A device for generating a duty cycle includes a converter, a corrector, and a control circuit. The converter is configured to generate a first output signal having a duty cycle to an output terminal according to an input signal. The corrector is coupled to the output terminal, and is configured to adjust the duty cycle of the first output signal according to a control signal. The converter is coupled in parallel with the corrector and between a first power source and a second power source. The control circuit is coupled to the output terminal, and is configured to generate the control signal according to the first output signal and a reference signal.

Abstract: An integrated circuit, a multi-channel transmission apparatus, and a signal transmission method thereof are provided. The multi-channel transmission apparatus includes a pre-stage circuit, a clock signal generator, and a post-stage circuit. The pre-stage circuit receives a plurality of first clock signals and a plurality of data signals, selects one of the first clock signals to be a base clock signal, and transmits the data signals according to the base clock signal to respectively generate a plurality of middle signals. The clock signal generator generates the first clock signals according to a second clock signal, wherein a frequency of the second clock signal is higher than a frequency of the first clock signals. The post-stage circuit transmits the middle signals according to the second clock signal to respectively generate a plurality of output signals. The pre-stage circuit is a digital circuit, and the post-stage circuit is an analog circuit.

Abstract: A device for generating a duty cycle includes a converter, a corrector, and a control circuit. The converter is configured to generate a first output signal having a duty cycle to an output terminal according to an input signal. The corrector is coupled to the output terminal, and is configured to adjust the duty cycle of the first output signal according to a control signal. The converter is coupled in parallel with the corrector and between a first power source and a second power source. The control circuit is coupled to the output terminal, and is configured to generate the control signal according to the first output signal and a reference signal.

Abstract: A radio frequency identification (RFID) communication system and method is provided to resolve the power-consuming problems of an active RFID tag while operating at a receiving mode in a long duration. A designated channel is established between the reader and the RFID tag, and also the reader sends a designated message so that the actuated active RFID tag can receive the designated messages and dynamically enter into a receiving mode. Therefore, normal communications may be conducted between the reader and the RFID and the usage period or technical performance can be improved as well.

Abstract: A method is provided to update firmware of a radio frequency identification (RFID) reader through a network system, wherein a management host issues an update message to a gateway through the network system, and then depending upon the location where reader firmware update data is stored, either the management host transmits the reader firmware update data through the gateway to each designated RFID reader, or the gateway directly transmits the reader firmware update data to each of the designated RFID readers. A microprocessor of the RFID reader stores the received reader firmware update data to a firmware data storage section of a memory unit thereof.

Abstract: A two-way connectivity USB control device and its operation method are disclosed. The present invention solves a problem of the prior art that requires users to manually switch a USB controller between an active mode and a passive mode and set a predetermined time interval as in prior art. The two-way connectivity USB control device detects whether or not there is a voltage input. If the detection result is yes, then the two-way connectivity USB control device is switched to a transmit mode, or else the two-way connectivity USB control device is switched to a transparent mode for accessing data stored in an external device by issuing a control command directly.

Abstract: A method and system is provided to reinforce wireless communication capabilities between multiple network nodes of an wireless network group. The method and system first detects a wireless transmission capability between a first network node and a second network node. When the wireless transmission capability is lower than a threshold value, one set of reinforcing coordinates will be derived by introducing the first geographic information and the second geographic information. Afterwards, move a third network node to a position with the set of reinforcing coordinates to establish an alternative wireless transmission route between the first network note and second network node. Therefore, when an original wireless transmission route between any two network nodes is abnormal, the alternative wireless transmission route will be available in time and reduce the risks of losing transmission signals.

Abstract: A wireless local network reconnecting system and method is provided. The method detects a connection-lost signal generated when a network node of the wireless local network group lost connection. A reconnecting coordinate is calculated according to the connection-lost signal and transmitted to the connection-lost network node through an external communication network. Afterwards, the method guides the connection-lost network node to move to the reconnecting coordinate and reconnect with the wireless local network group wirelessly. Since the external communication network is used to connect with the connection-lost network node, the connection-lost network node is able to reconnect with the wireless local network group through the proposed method.

Abstract: A system and method are provided for multiple nodes to wirelessly transmit in an Ad-hoc network architecture. First of all, an integration module of the system integrates a multi-node transmission protocol into a reservation column of a data packet. Next, an initial node of the system transmits the integrated data packet. Afterwards, according to the multi-node transmission protocol, one or more bridge node of the system receives the integrated data packet transmitted from the initial node. And finally, according to the multi-node transmission protocol, a destination node of the system receives the integrated data packet transmitted from the bridge node. By means of the proposed system and method, data transmission between multiple nodes is achieved under the Ad-hoc network architecture.

Abstract: The present invention discloses a security flash memory which includes a flash memory chip with a plurality of data transmission terminals, and a data encryption device. The data encryption device includes a verifier module with default pass code, a secret key module and a switching module. The verifier module compares a pass code with the default pass code for outputting a control signal. The secret key module is used for data encryption and data decryption. The switching module is connected to the verifier module, the data transmission terminals of the flash memory chip and the secret key module, and may connect or disconnect the data transmission terminals of the flash chip and the secret key module in response to the control signal.

Abstract: A wireless connection system and method are provided to connect diverse Ad-hoc network groups. A first Ad-hoc network group has a first network node and a first edge node wirelessly connecting with each other. The second Ad-hoc network group has a second network node and a second edge node wirelessly connecting with each other without connecting the first Ad-hoc network group. The first and second edge nodes have multiple wireless modules respectively. One of the wireless modules is used to connect wireless with other network nodes in the same Ad-hoc network group. The rest extra wireless module(s) is used to connect wirelessly with another extra wireless module(s) of the edge node(s) in different Ad-hoc network group(s). Therefore, the independent first and second Ad-hoc network groups are now capable of wirelessly connecting with each other.