Abstract: An electronic device enclosure includes a base, a bezel, and a clasping member. The base includes a front panel. A through hole is defined in the front panel. The bezel includes a clipping portion. The clipping portion includes a connecting arm, a first hook, and a second hook. The clasping member defines a receiving opening with a first edge and a second edge. The clipping portion extends through the through hole and the receiving opening. The clasping member is located relative to the front panel in a first position and a second position, in the first position, the first hook is engaged with the first edge. In the second position, the second hook is engaged with the second edge.

Abstract: An optical recording apparatus includes a traverse, a control circuit board, a shield substrate and an flexible flat cable (FFC). The traverse includes a spindle motor for rotating an optical disc and an optical pickup head for reading and/or writing the optical disc, the optical pickup head moves along a radial direction of the optical disc when reading and/or writing the optical disc. The FFC electrically connects the optical pickup head and the control circuit board and transmits signals between them, and a portion of the FFC adjacent to the second end is bent to facing the shield substrate. The shield substrate includes at least two limiting members, and the at least two limiting members are positioned at two opposite sides of the portion of the FFC facing the shield substrate to enable the portion of the FFC facing the shield substrate to move along the first direction.

Abstract: A method for automatic display of a spread in ebooks is revealed. The method includes several steps. First scan at least one paper book by a scanner to get at least one original page file with at least two original pages. Then execute a transcription suite in a computing device for transcribing the original page file into an e-book and write at least one spread event into at least one electronic page of the e-book by an input device. Next use a reader to read the e-book. The reader triggers the spread event while reading the electronic page written with the spread event. Thus the reader automatically retrieves and displays at least two electronic pages on a monitor of the reader simultaneously. Therefore the spread covering at least two electronic pages is automatically displayed on a monitor of the reader.

Abstract: An antenna includes a substrate and an antenna body disposed on the substrate. The substrate includes a first surface and a second surface connecting to the first surface. The antenna body includes a first radiator and a second radiator. The first radiator is disposed on the first surface of the substrate, the second radiator is disposed on the second surface. The first radiator is disposed by pad printing a conductive slurry, the second radiator is disposed by dispensing the conductive slurry.

Abstract: In a method for generating drawing codes of a picture being drawn, a plurality of drawing elements and a drawing model for each of the drawing elements are defined. Each drawing model includes one or more drawing parameters. When a drawing element is selected and used to draw a picture, parameter values of the selected drawing element are obtained. Drawing parameters of a drawing model of the selected drawing element are replaced by the parameter values of the selected drawing element, to obtain drawing codes corresponding to the selected drawing element. According to a sequence of drawing steps of the picture, drawing codes corresponding to each selected drawing element are integrated into the overall drawing codes of the picture.

Abstract: In a cooperative drawing method using a computing device, a new picture and a drawing group is created. Client computers that join the drawing group are determined. The computing device receives a drawing request from one of the client computers, and assigns a control right and a drawing region of the picture to the client computer. The picture is allocated to the client computer having the control right to draw. According to changes to the picture, drawing codes of the picture are generated. The drawing codes are transferred to all of the client computers. The picture is stored into a storage system of the computing device.

Abstract: A method for rating electronic books (e-books) is revealed. Acquire and save an e-book in a memory device. Set up a criterion that includes at least one standard value and a plurality of regions defined by the standard value. Compile at least one electronic label corresponding to the region by an input device and save the electronic label in the memory device. The electronic label is linked to at least one electronic page of the e-book so that the electronic label is displayed with the electronic page when the e-book is retrieved by a reading device. The present invention can be applied to rating, copyright notice, and classification of e-books. The electronic labels in visual or audio form show messages related to e-book rating, copyright notice and classification.

Abstract: The present invention provides a service information platform with searching function, which comprises at least a photographic device, at least a user terminal, and a server device. The photographic device takes a picture of an object or a product label of the object and produces an image file. The user terminal connects to the server device and transmits the image file to the server device. After the server device receives the image file, a processor is used for producing an analysis result, which is used for searching at least a piece of service information related to the image file from the Internet or the classified service information database in the server device. Then the service information is returned back to the user terminal. Thereby, the user can acquire the service information from the Internet or the service information uploaded to the classified service information database by information suppliers.

Abstract: A method for creating a knowledge map is revealed. The method includes several steps. Get a plurality of electronic chapters and arrange the electronic chapters in sequence to obtain a knowledge node sequence list. Then the knowledge node sequence list is stored in a memory and a plurality of knowledge nodes of the knowledge node sequence list is connected to the electronic chapters by hyperlinks. Next compile a list property of the knowledge node sequence list and a plurality of node properties of the knowledge nodes to create the knowledge map that shows connections and structure of knowledge. The knowledge connections are visualized and graphically organized in the knowledge map to promote thinking and learning.

Abstract: In certain examples, a quadrature cancellation apparatus can include a drive charge amplifier configured to couple to a proof mass of a MEMS device and to provide oscillation motion information, a first sense charge amplifier configured to couple to the proof mass and to provide first sense information of a first movement of the MEMS device, a first programmable amplifier configured to receive the oscillation motion information and provide amplified oscillation motion information, a first summer configured to cancel quadrature error of the first sense information using the first sense information and the amplified oscillation motion information to provide quadrature-corrected first sense information, a phase shifter configured to receive the oscillation motion information and to provide carrier information, and a first multiplier configured to provide demodulated first sense information using the quadrature-corrected first sense information and the carrier information.

Abstract: In an example, a driver for a micro-electro-mechanical-system (MEMS) device can include a first input configured to receive a first command signal including an oscillatory command signal, a second input configured to receive a second command signal including a bias command signal, and an amplifier configured to receive a high voltage supply, to provide, to the MEMS device, a closed-loop output signal responsive to both the first command signal and the second command signal in a first state, and to provide an open loop output signal configured to substantially span a voltage range of the high voltage supply in a second state.

Abstract: This document discusses, among other things, apparatus and methods for digital automatic gain control for driving a MEMS device, such as a proof mass. In an example, an apparatus can include a driver configured to oscillate a proof mass of a MEMS device, a charge-to-voltage (C2V) converter configured to provide oscillation information of the proof mass, an analog-to-digital converter (ADC) configured to provide a digital representation of the oscillation information, and a digital, automatic gain control circuit to provide oscillation amplitude error information using a comparison of the oscillation information to target amplitude information, and to provide a digital drive command signal using an amplified representation of the oscillation amplitude error information.

Abstract: This document discusses, among other things, apparatus and methods quadrature cancelation of sense information from a micro-electromechanical system (MEMS) device, such as a MEMS gyroscope. In certain examples, a quadrature correction apparatus can include a drive charge-to-voltage (C2V) converter configured to provide drive information of a proof mass of a MEMS gyroscope, a sense C2V converter configured to provide sense information of the proof mass, a phase-shift module configured to provide phase shift information of the drive information, a drive demodulator configured to receive the drive information and the phase shift information and to provide demodulated drive information, a sense demodulator configured to receive the sense information and the phase shift information and to provide demodulated sense information, and wherein the quadrature correction apparatus is configured to provide corrected sense information using the demodulated drive information and the demodulated sense information.

Abstract: This document discusses, among other things, apparatus and methods for a front-end charge amplifier. In certain examples, a front-end charge amplifier for a microelectromechanical system (MEMS) device can include a charge amplifier configured to couple to the MEMS device and to provide sense information of a proof mass of the MEMS device, a feedback circuit configured to receive the sense information and to provide feedback to an input of the charge amplifier, and wherein the charge amplifier includes a transfer function having a first pole at a first frequency, a second pole at a second frequency, and one zero at a third frequency.

Abstract: An enclosure includes a chassis, a side panel and a knob structure. The chassis includes a rear panel in which a latching hole is defined. The knob structure includes a mounting member, a sliding member engaged in the mounting member, a positioning member secured to the side panel and a resilient member elastically engaged between the sliding member and the positioning portion. The mounting member is secured to the side panel. The sliding member includes a hook. The sliding member can slide from a first position to a second position; when the sliding member is in the first position, the hook engages in the latching hole, when the sliding member is in the second position, the hook disengages from the latching hole; the resilient member elastically deforms to bias the sliding member to slide from the first position to the second position.

Abstract: A mounting apparatus includes a drive bracket, a maintaining plate and a mounting bracket, the drive bracket includes a bottom plate, a first side plate and a second side plate, a receiving space is defined among the bottom plate, the first side plate and the second side plate, the receiving space is divided into a top portion and bottom portion by the maintaining plate. The top portion is adapted to secure a first disk drive, the mounting bracket is secured to the bottom portion of the two portions and configured for securing a second disk drive that is smaller than the first disk drive.

Abstract: A computer enclosure includes a bracket and a locking member. The bracket includes a side plate defining a slide slot. A first pair of positioning mechanisms and a second pair of positioning mechanisms are located on opposite sides of the slide slot. The locking member is configured for securing a disk drive in the bracket and includes a first pair of locking portions and a second pair of locking portions. The second pair of locking portions are engaged with the second pair of positioning mechanisms. The first pair of locking portions are resiliently deformable between a first state, in which the first pair of locking portions are engaged with the first pair of positioning mechanisms, and a second state, in which the first pair of locking portions are deformed in opposite directions and disengaged from the first pair of positioning mechanisms.

Abstract: A composite drill bit with a bit body configured at its upper extend for connection into a drillstring, comprising: a bit body (1) with at least one bit leg (3), at least one scraping-wheel (2) set with a cutter-row (4), and a set of cutters fixed thereon. The scraping-wheel (2) is mounted for rotation on the corresponding bit leg (3) with a large angular deflection ? in the range of 20°?|?|?90°. The cutters on the scraping-wheel break rock by means of successive scraping, forming a cross-cutting area on the bottomhole accompanied by the cutters on the fixed cutting unit, thus achieving high rock-breaking efficiency, even wear, high cooling performance, and a longer service life for the cutters, bearings and the drill bit.

Abstract: A scraping-wheel drill bit with a bit body configured at its upper extend for connection into a drillstring, comprising: a bit body (1) with at least one bit leg (3), and at least one scraping-wheel (2) set with a cutter-row (4). The scraping-wheel (2) is mounted for rotation on the corresponding bit leg (3) with a large angular deflection ? which lies in the range of 20°?|?|?90°. The cutters on the scraping-wheel break rocks by means of successive scraping, forming a spiral-like tracks on the bottomhole, thus achieving high rock-breaking efficiency, even wear, high cooling performance, and a longer service life for the cutters, bearings and the drill bit.

Abstract: An electronic device enclosure includes a receiving case, a bracket rotatably attached to the receiving case, and a positioning member secured to the bracket. The receiving case includes a sliding rail. The positioning member includes a positioning portion, and the positioning portion is deformable. The positioning portion slidably engages with the sliding rail, for preventing the bracket from rotating relative to the receiving case.