Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Chih-Lung
Chih-Lung Chang, Hsin-Tien TW
| Patent application number | Description | Published |
|---|---|---|
| 20080247570 | Sound output device with earphone mode and speaker mode - A sound output device with an earphone mode and a speaker mode is provided. The sound output device changes a circuit resistance value of loudspeaker modules by adjusting a connecting state of the loudspeaker modules in the sound output device. Thus the sound output device is set to an output volume value of the earphone mode or of the speaker mode, so as to meet the requirements of the user, and to improve the convenience in use of the sound output device. | 10-09-2008 |
Chih-Lung Chen, Taipei City TW
| Patent application number | Description | Published |
|---|---|---|
| 20120084548 | Method and Module for Simulating Keyboard - This disclosure provides a method and a module for simulating a keyboard used in an electronic device having a hot key. The method for simulating a keyboard at least includes the following steps. First, whether the hot key is pressed is checked. If the hot key is pressed, a pressing time of the hot key is calculated. If the pressing time is over a first predetermined time, a first scanning code is sent. When the pressing time is within the first predetermined time, whether to send a second scanning code is determined according to the pressing time. | 04-05-2012 |
Chih-Lung Chen, Taoyuan County TW
| Patent application number | Description | Published |
|---|---|---|
| 20110121879 | METHOD OF AUTOMATIC GAIN MODULATION AND APPARATUS IMPLEMENTING THE SAME - Provided is method for automatic audio gain modulation and a related apparatus. In order to prevent the unstable signals as continuously increasing or decreasing the gain when the signals hover around an upper threshold, it's featured that the method is to predict the signal intensity as pre-adding a predict gain in a hold time before outputting signals. By determining whether the prediction exceeds a predetermined threshold or not, the suitable and adjustable gains can be obtained without exceeding the predetermined threshold. In the automatic gain control mechanism, it's to decrease the gain gradually as automatically entering an attack time, or to increase the gain gradually as performing a conventional auto-gain control procedure including entering a release time. The claimed method can modulate the gain automatically by predicting the gain, and confine the signals under a threshold. In addition to avoid sawtooth phenomena, the method can stabilize the signals. | 05-26-2011 |
Chih-Lung Hsiao, Tayuan TW
| Patent application number | Description | Published |
|---|---|---|
| 20090013929 | PLATING APPARATUS - A plating apparatus for plating a FPCB base board having a first conveyance region and a second conveyance region includes a shielding apparatus. The shielding apparatus includes a first shielding plate and a second shielding plate. The first shielding plate corresponds to the first conveyance region. A distance between the first shielding plate and the first conveyance region is from 5 millimeters to 20 millimeters. A width of the first shielding is equal to or larger than a width of the first conveyance region. The second shielding plate corresponds to the second conveyance region. A distance between the second shielding plate and the second conveyance region is from 5 millimeters to 20 millimeters. A width of the second shielding is equal to or larger than a width of the second conveyance region. The first and second shielding plates are made of an insulation material. | 01-15-2009 |
| 20090014031 | CLEANING APPARATUS - The present invention relates to a cleaning apparatus for printed circuit board. The cleaning apparatus includes a base, a clamping plate fixed to the base, at least one holding member, at least one cleaning roller, and a driving mechanism. The holding member is elastically supported on the base. The at least one cleaning roller is pivotably disposed on the at least one holding member respectively. The cleaning roller includes a cleaning layer attached to a surface of the cleaning roller. The clamping plate is opposite to and departs from the cleaning roller at a distance. The driving mechanism is coupled to the cleaning roller and configured for driving the cleaning roller to rotate. The cleaning apparatus can clean printed circuit board high efficiently. | 01-15-2009 |
| 20090025582 | SCREEN PRINTING METHOD FOR PRINTING A PRINTED CIRCUIT BOARD - An exemplary screen printing method for printing a printed circuit board is provided. The printed circuit board includes a number of parallel electrical traces. In the method, firstly, a screen printing stencil is disposed on a side of the printed circuit board having the electrical traces and a squeegee is disposed on the screen printing stencil. Secondly, the squeegee is drawn across the screen printing stencil in a manner such that an angle between a blade of the squeegee and the electrical traces is in a range from 20 degrees to 70 degrees so as to print an ink on the printed circuit board. The method can improve quality of the printed circuit board. | 01-29-2009 |
| 20090039053 | METHOD FOR MANUFACTURING ELECTRICAL TRACES OF PRINTED CIRCUIT BOARDS - An exemplary method for manufacturing a printed circuit board is provided. Firstly, a copper clad substrate comprising a base film, a copper layer and intermediate layer interposed between the base film and the copper layer is provided. The intermediate layer is comprised of nickel, chromium, or alloy of nickel and chromium. A patterned photoresist layer is formed on the copper layer with portions of the copper layer are exposed from the photoresist pattern layer. Exposed portions of the copper layer are removed using a copper etchant to form a number of electrical traces, thereby exposing portions of the intermediate layer from the patterned photoresist layer. Exposed portions of the intermediate layer are removed using a chromium-nickel etchant. The method can prevent a bottom of each of electrical traces from enlarging, thereby improving quality of printed circuit board. | 02-12-2009 |
| 20090056624 | FLUID CIRCULATING SYSTEM FOR MANUFACTURING PRINTED CIRCUIT BOARD - An exemplary fluid circulating system includes a return pipe, a reservoir, a suction pipe, a supply pipe, a circulating pump, and a processing device. The reservoir is configured for containing a work fluid. The processing device is configured for processing a semi-finished printed circuit board using the work fluid. The circulating pump is configured for transferring the work fluid from the reservoir to the processing device. The suction pipe and the supply pipe are respectively coupled to an inlet and the outlet of the circulating pump. An inner diameter of the suction pipe is larger than that of the supply pipe. The return pipe is coupled to the processing device for delivering the work fluid from the processing device to the reservoir. The fluid circulating system can improve quality of the circulated work fluid. | 03-05-2009 |
Chih-Lung Kuo, Sinshih Township TW
| Patent application number | Description | Published |
|---|---|---|
| 20120105406 | Driving Circuit for Liquid Crystal Pixel Array and Liquid Crystal Display Using the Same - A driving circuit and a liquid crystal display using the same. In the driving circuit, a first switch and a second switch are provided in a VCOM driver thereof. The first switch is designed to be turned on to a ground a VCOM terminal of a display capacitor, and the second switch is designed to be turned on to couple a constant voltage level DC VCOM to the VCOM terminal of the display capacitor. In addition, a timing controller of the driving circuit is designed for reducing power consumption, which controls the statuses of the first and second switches and determines when to allow a positive polarity voltage to be coupled to the display capacitor to charge the display capacitor for positive polarity display. | 05-03-2012 |
Chih-Lung Liu, Hsinchu TW
| Patent application number | Description | Published |
|---|---|---|
| 20120038466 | PICKING SYSTEM - A picking system comprises a radio frequency identification (RFID) tag, a case, a two-wire conductive strip, at least one identifying unit and a processing unit. The two-wire conductive strip is electrically connected between the identifying unit and the processing unit. The identifying unit reads tag information within the RFID tag for actively and instantly controlling the authorization of an operating staff assigned for particular items thereby improving the accuracy of picking items. | 02-16-2012 |
Chih-Lung Wu, Yingge Town TW
| Patent application number | Description | Published |
|---|---|---|
| 20090021492 | Light Emitting Touch Pad and Control System having the same - A light emitting touch pad includes a transparent touch sensor and a light emitting display apparatus. The transparent touch sensor is configured for sensing the position where an object touches the light emitting touch pad. The light emitting display apparatus is disposed at a side of the transparent touch sensor and configured for providing a surface light source emitting light toward the transparent touch sensor. | 01-22-2009 |
Chih-Lung Wu, Tu Cheng City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100252852 | COOLING BLOCK ASSEMBLY AND LED INCLUDING THE COOLING BLOCK - An LED includes a cooling block, an LED chip, two insulating layers, two electrically conductive layers and two gold wires. According to the invention, two open trenches are arranged by opening on the cooling block; the LED chip is fixed on a surface of the cooling block; the insulating layers are plated on inner walls of the trenches; the electrically conductive layers are plated on the insulating layers and are insulated from the cooling block; the gold wires are electrically conducted to the electrically conductive layers and the LED chip; since the insulating layers are only plated on parts, where the cooling block contacts the electrically conductive layers, the other parts of the cooling block are exposed, such that the cooling area is increased and the cooling performance is promoted; in addition, the invention is further to provide a cooling block assembly constituted by these cooling blocks. | 10-07-2010 |
| 20110216555 | LED DEVICE FOR BACKLIGHT MODULE - A light emitting diode (LED) device applied to a backlight module includes a substrate, a plurality of sub-substrates, a plurality of light emitting chips, and a plurality of package lenses. The sub-substrates are installed on the substrate, and the light emitting chips are installed on the sub-substrates respectively. The package lenses are installed on the light emitting chips respectively, and each package lens is in a solid semi-elliptical shape and includes a long axis and a short axis perpendicular to the long axis. | 09-08-2011 |
Chih-Lung Yang, Chunghua TW
| Patent application number | Description | Published |
|---|---|---|
| 20090256902 | Implementation of MPCP MCU technology for the H.264 video standard - A method for generating a video output signal. The method may include receiving a plurality of input video signals from each of the participants. Each of the input video signals may have a plurality of input frames. Each of the input frames may have a source slice carrying an image. Each of the input frames may be encoded using the respective reference frame at an encoding time. The method may include a step for generating the video output signal for transmission to the participants. The video output signal may comprise a plurality of output frames. A first of the output frames generally has at least a first slice having (a) a first coded portion carrying the image from a first of the participants and (b) a first unencoded portion for the image from a second of the participants. A second of the output frames generally has at least a second slice having (a) a second coded portion carrying the image from the second participant and (b) a second unencoded portion for the image from the first participant. The frames of the video output signal are generated as soon as one of the frames of the video input signal are received. | 10-15-2009 |