Abstract: A method for enhancing bonding strength of a metal spraying thickened layer of electroformed mold inserts includes the following procedures: forming a plurality of stereoscopic reinforced ribs on an electroformed metal shell mold by metal spraying; covering the stereoscopic reinforced ribs and the electroformed metal shell mold to become an integrated body by electroforming; forming a metal thickened layer by metal spraying; forming a second electroformed cover and forming a metal key bond between the electroformed cover and the metal thickened layer. The method of the invention can shorten fabrication time of the electroformed mold insert and improve the mechanical strength and soldering affinity of the metal thickened layer.
Type:
Grant
Filed:
October 21, 2004
Date of Patent:
September 18, 2007
Assignee:
Chung Shan Institute of Science and Technology
Abstract: A multi-lamp driving circuit includes a transformer, a first lamp, a second lamp, a current/voltage converting circuit and a voltage/current converting circuit. Transformer includes a secondary coil having a first output terminal and a second output terminal. Each of the first lamp and the second lamp has one end coupled to the first output terminal. The current/voltage converting circuit is for outputting a voltage according to a first current of the first lamp. The voltage/current converting circuit is for correspondingly generating a second current according to the voltage, wherein the second current is substantially equal to current of the second lamp.
Abstract: The present invention provides a method of evaluating a semiconductor device having an ESD protective element, wherein a MOSFET is formed on the same substrate, comprising a step (electric characteristic measurement) for measuring an electric characteristic of the MOSFET, a step (snapback characteristic measurement) for measuring a snapback characteristic of the MOSFET, a step (impurity profile extraction) for extracting an impurity profile of the MOSFET from the electric characteristic and snapback characteristic of the MOSFET by using an inverse modeling technique, and a step (impurity profile adaptation) for causing the extracted impurity profile of the MOSFET and an impurity profile of the ESD protective element to correspond to each other, whereby the impurity profile of the ESD protective element is evaluated from the electric characteristic.
Abstract: An apparatus for decoding encoded voice data comprises a demodulator (101) which demodulates the encoded voice data (RF) and provides a demodulated encoded voice data (APO, RD), an adaptive differential pulse code modulation decoder (102) which decodes the demodulated encoded voice data and provides a pulse code modulation data (PO), an error detector (103) which detects whether error is present in the encoded voice data based on the demodulated encoded voice data and outputs a detection result (CRCERR) and a limiter (104) which outputs either the pulse code modulation data (POL) or a limit data (POL) in accordance with the detection result (CRCERR).
Abstract: A CE control circuit includes a CE signal generating circuit which sets a CE signal to an enable level when bringing the memory to an operable state or sets the CE signal to a disable level when bringing the memory to a low power consumption state, and a reference value generating circuit which outputs a reference value corresponding to a period during which the memory is allowed to be continuously in the operable state, wherein when not receiving a startup request signal of the memory for a period during which the CE signal is the enable level, the CE signal generating circuit elongates the period during which the CE signal is the enable level to a period corresponding to the reference value and which is not shorter than a CE enable signal hold time of the memory, and sets the CE signal to the disable level after the elongated period passes.
Abstract: A structure of signal cable connector, which is connected to the signal cable between the hard disk and the computer's main board, comprises at least an enclosure, a circuit board and a wire strand. Wherein a wire block is utilized to affix the signal wires and a ground block to conduct the soldered ground wires so as to minimize the solder points incurred by direct solder of conducting wires on circuit board, resulting in easier assembly and optimized yield.
Abstract: The present invention provides a pulse width modulation (PWM) circuit comprising an PWM control circuit for setting an output signal to low when a logical level of a oscillation signal at a first input terminal changes from low to high, for resetting the output level to low in response to an effective input signal at a second terminal, a charge and discharge means for charging a first node (node1) when the output stays in low, for discharging the stored charge of node1 when the output stays in high, a comparator (C1) for outputting an output signal to the second terminal according to the first node signal and a first reference signal (Vref0), a discharge current controlling means for the stored charge on the first node, wherein the discharge current controlling means comprises a bias circuit 2 for controlling the discharge current based on constant current.
Abstract: A portable computer can be selectively configured with a first hard disk or a second hard disk. The portable computer includes a controller, an interface connector, and a second interface adapter. The controller includes a first interface controlling unit and a second interface controlling, for respectively controlling the first hard disk and the second hard disk. The interface connector, electrically coupled with the first interface controlling unit and the second interface controlling unit, can be selectively electrically coupled with the first hard disk or the second hard disk. Parts of the ground pins and the floating pins of the interface connector are provided for transmitting signals to the second hard disk. Parts of the ground pins and the power pins are commonly used by the first and the second hard disks.
Abstract: A method for determining a maximum number of attempted retry operations when a read error occurs in an optical disk device. The method includes the steps of receiving an RF signal from a pickup of the optical disk device, detecting an envelope of the RF signal, asserting a defect signal when a level of the envelope is lower than a predetermined threshold, generating interrupt pulses during the assertion of the defect signal, and determining the maximum number of attempted retry operations using the interrupt pulses.
Abstract: A system for determining the return of the photo sensor in the scanner and the method thereof are disclosed. There are two base position sensing units in the system. Each of the base position sensing units computes the currents in two sections of a line resistance material defined by the position of the photo sensor after a document is scanned to determine which base position sensing unit the photo sensor should return to. This method reduces the return time of the photo sensor than the prior art in which the photo sensor can only return to a single end. Therefore, the system helps achieving the goals of increasing the scanning efficiency and saving power. Moreover, the system realizes the image scanning in both directions.
Abstract: A driving apparatus includes a DC-to-DC converter, a first LED series, a second LED series, a first constant-current circuit, a second constant-current circuit, and a feedback circuit. The DC-to-DC converter respectively outputs a direct-current voltage to one terminal of the first and the second LED series to generate a first potential and a second potential at the other terminal of the first and the second LED series according to a feedback voltage. The first and the second constant-current circuits are respectively coupled to the other terminal of the first and the second LED series and output a first current and a second current for driving the first and the second LED series according to a first and a second control signals. The feedback circuit uses the lower one of the first potential and the second potential as a feedback voltage.
Abstract: The level shifter comprises a coupling block, a PMOS switch, a first PMOS transistor and a second PMOS transistor. The coupling block receives a first signal and a second signal to generate a first control signal and a first reference voltage. The first signal and the second signal are of opposite phases. The PMOS switch is controlled by the first control signal to choose the first reference voltage or a second reference voltage to be a second control signal. The first PMOS transistor is controlled by the first control signal. The second PMOS transistor is controlled by the second control signal. The connection point between the second PMOS transistor and the first PMOS transistor outputs an output signal.
Abstract: A data processing method of a virtual optical disk applied in an optical disk system is provided. The method includes steps as follows: Firstly a sound source determining procedure is executed. If the sound source is not from a virtual optical disk, a pre-processing and a buffer playing process are executed, and also a state changing process is executed while the buffer playing process is executed. According to a result of the state changing process, one of the following three steps is executed: the sound source determining procedure, the pre-processing procedure, and an idle determining procedure. If the system is not idling when executing the idle determining procedure, the buffer playing process is thus executed. Otherwise, a state assessment process is then executed. In accordance with the state assessment process, a storage capacity planning procedure, a write process or the state changing process is then executed.
Abstract: An organic thin-film transistor and a method for manufacturing the same are described. The method forms a gate layer on a substrate, an insulator layer on the substrate, forming a semiconductor layer on the insulator layer, and a strip for defining a channel length on the semiconductor layer. An electrode layer is screen printed on the semiconductor layer, and a passivation layer is coated on the electrode layer. The organic thin-film transistor manufactured by the method of the invention has a substrate, a gate layer formed on the substrate, an insulator layer formed on the substrate, a semiconductor layer formed on the insulator layer, a strip for defining a channel length formed on the semiconductor layer, an electrode layer screen-printed on the semiconductor layer, and a passivation layer coated on the electrode layer. Thereby, an organic thin-film transistor with a top-contact/bottom-gate structure is obtained.
Type:
Grant
Filed:
May 7, 2004
Date of Patent:
September 4, 2007
Assignee:
Industrial Technology Research Institute
Abstract: A method for automatically adjusting an antenna and the system thereof are provided. The method includes driving the motor to rotate the antenna at first, so as to receive multiple first digital signals and record the position corresponding to the multiple first digital signals; comparing the multiple first digital signals to obtain the strongest first digital signal among them; driving the motor to rotate the antenna to the position corresponding to the strongest first digital signal; driving the motor to adjust the pitching angle of the antenna to receive multiple second digital signals and record the pitching angle corresponding to the multiple second digital signals; comparing the multiple second digital signals to obtain the strongest second digital signal among them; and driving the motor to rotate the antenna to the pitching angle corresponding to the strongest second digital signal.
Abstract: A fixing mechanism for fixing a disc drive and a locking device thereof solves the inconvenience involved in fixing and disassembling the disc drive. The disc drive has at least one a pair of protrusions located at side walls of the disc drive. The fixing mechanism includes a fixing frame and a locking device. The fixing frame has a pair of assembling walls and at least one receiving space is used for receiving the disc drive. One of the assembling walls has a pair of assembling boards protruding outward and an open sliding slot. The protrusions are slidably installed in the sliding slot. The locking device includes a base part and a locking arm. Two sides of the base part are assembled to the assembling boards. A locking hole formed at the free end of the locking arm correspondingly locks one of the protrusions of the disc drive.