Chao-Chih
Chao-Chih Chang, Taichung City TW
Patent application number | Description | Published |
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20080232630 | Condenser microphone package - A condenser microphone package includes: a condenser microphone unit including a diaphragm and a back plate; a printed circuit board; a conductive connector sandwiched between and cooperating with the condenser microphone unit and the printed circuit board to form a stack; and a metal can encasing the stack and having a first end wall that is formed with a plurality of sound holes, and that abuts against the condenser microphone unit, and a second end wall that is disposed opposite to the first end wall, that abuts against the printed circuit board, and that cooperates with the first end wall to press the printed circuit board toward the condenser microphone unit. | 09-25-2008 |
20080298609 | ELECTROMAGNETIC MICROPHONE - A microphone includes first and second magnet units disposed in a head housing and spaced apart from each other in an axial direction of the head housing. The first and second magnet units generate respectively first and second magnetic fields. A response unit is mounted in the head housing, is disposed between the first and second magnet units in the axial direction, and includes a diaphragm, and a conductive wiring disposed at the diaphragm. When the diaphragm vibrates between the first and second magnet units in response to an external sound wave signal, an electrical signal corresponding to the sound wave signal is induced in the conductive wiring as a result of action of the first and second magnetic fields. | 12-04-2008 |
20090245544 | Acoustoeletric transformation chip for ribbon microphone - An acoustoelectric transformation chip for a ribbon microphone includes a diaphragm that has a vibrating region and two fixing regions disposed on two opposite sides of the vibrating region, and a voice coil film formed on the diaphragm. The voice coil film includes two rectangular voice coils, each of which has a plurality of first and second connection segments parallel to a direction of a magnetic field. A plurality of first and second transverse segments are perpendicular to the first and second connection segments and are connected between the first and second connection segments. The second transverse segments of each voice coil are disposed on one of the fixing regions. The first transverse segments of the two voice coils are disposed in the vibrating region. | 10-01-2009 |
20100001154 | CLAMPING DEVICE FOR ANCHORING A MICROPHONE TO AN INSTRUMENT - A clamping device includes an elongated seat unit and a clamping lever unit which respectively have mated and mating jaw segments to clamp a to-be-clamped part of an instrument, grip and actuating segments confronting each other, and mount and fulcrum segments pivotally mounted such that, when the actuating segment is turned away from the grip segment, the mating and mated jaw segments are moved toward each other. A lengthwise extending beam is secured to the elongated seat unit, and is spaced apart from the grip segment. A tubular member has an inner peripheral retained surface displaceably engaged with the beam, and an outer rim surface configured to force the actuating segment to permit the mating jaw segment to clamp the to-be-clamped part with an increased friction force when the tubular member is displaced towards the mount segment. | 01-07-2010 |
20120210560 | METHOD FOR MANUFACTURING A CONDENSER MICROPHONE - A method for manufacturing a condenser microphone includes forming a diaphragm module using microelectromechanical system (MEMS) techniques. The diaphragm module includes a diaphragm that is deformable by energy of sound waves, and a diaphragm spacer that extends from one side of the diaphragm and controls a tension of the diaphragm. The method further includes providing a backplate with vent holes, aligning the vent holes of the backplate with a central region of the diaphragm, and connecting the backplate to the diaphragm spacer to construct a transducer unit. The diaphragm spacer, the diaphragm and the backplate cooperate to form an air chamber in fluid communication with an environment external to the condenser microphone. The backplate and the diaphragm cooperate to form a condenser. The method further includes enclosing the transducer unit in a housing that includes a shell and a circuit board to form the condenser microphone. | 08-23-2012 |
20130223653 | Wireless Microphone System With Frequency Matching Capability, And Method For Frequency Matching In A Wireless Microphone System - A wireless microphone system includes a receiver device, a wireless microphone device, a transmitting unit operable to transmit an identification code and a frequency matching signal, and a reading unit. The reading unit is operable to receive the identification code and the frequency matching signal, determine whether or not the identification code corresponds to the reading unit, and enable frequency matching between the receiver device and the wireless microphone device according to the frequency matching signal when the identification code is determined to correspond to the reading unit. | 08-29-2013 |
Chao-Chih Chiu, Hsin Chu Hsien TW
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20090152588 | ESD PROTECTION DEVICE IN HIGH VOLTAGE AND MANUFACTURING METHOD FOR THE SAME - An ESD protection device comprises a substrate of a first conductive type; a transistor formed in the substrate having an input terminal of the first conductive type, a control terminal of a second conductive type, and a ground terminal of the first conductive type; and a diode formed in the substrate having a first terminal of the first conductive type and a second terminal of the second conductive type, wherein the input terminal and the second terminal are coupled to an input, and the ground terminal and the first terminal are coupled to a ground. | 06-18-2009 |
Chao-Chih Hsu, New Taipei City TW
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20140240499 | FRONT-AND-REAR-FACING CAMERA DEVICE - A front-and-rear-facing camera device has a camera unit mounted on a selected position on a carrier. The camera unit has a front lens and a rear lens oppositely mounted on a lens-mounting base to take a front-view video stream and a rear-view video stream, and displays the front-view and rear-view video streams on two non-overlapping display areas of a display, or displays the front-view video stream on an overlapping display area of the display and the rear-view video stream on the displayed front-view video stream through an image-processing circuit and a signal transmission interface electrically connected between the front and rear lenses and the display. | 08-28-2014 |
Chao-Chih Huang, New Taipei City TW
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20150237353 | METHOD AND APPARATUS FOR PACKING TILE IN FRAME THROUGH LOADING ENCODING-RELATED INFORMATION OF ANOTHER TILE ABOVE THE TILE FROM STORAGE DEVICE - A method for encoding a frame divided into a plurality of tiles includes: storing encoding-related information derived from blocks in a last block row of a first tile of the frame into a storage device; reading the encoding-related information from the storage device; and performing entropy encoding upon blocks in a first block row of a second tile of the frame based at least partly on the encoding-related information read from the storage device. The first block row of the second tile is vertically adjacent to the last block row of the first tile. The entropy encoding of the first block row of the second tile is started before entropy encoding of the last block row of the first tile is accomplished. | 08-20-2015 |
20150237374 | METHOD FOR PERFORMING IMAGE PROCESSING CONTROL WITH AID OF PREDETERMINED TILE PACKING, ASSOCIATED APPARATUS AND ASSOCIATED NON-TRANSITORY COMPUTER READABLE MEDIUM - A method for performing image processing control and an associated apparatus are provided, where method may include the steps of: performing image coding on image information of at least one frame to generate encoded data of the at least one frame, wherein in the encoded data, a specific frame of the at least one frame includes a plurality of tiles, and each tile of the plurality of tiles includes a plurality of superblocks; and generating a bitstream carrying the encoded data of the at least one frame, wherein at least a partition type and a transform size of each superblock within a specific tile of the plurality of tiles are derivable from information corresponding to the specific tile within the encoded data, having no need to derive the partition type and the transform size from information corresponding to another tile of the plurality of tiles within the encoded data. | 08-20-2015 |
Chao-Chih Lin, Guanyin Township TW
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20110305053 | Switching Control Circuits with Valley Lock for Power Converters - A switching control circuit for a switching power converter is provided. The switching control circuit is coupled to a switching device and an auxiliary winding of a transformer. The switching control circuit includes a valley detecting circuit, a valley lock circuit, and a PWM circuit. The valley detecting circuit is coupled to receive a reflected voltage signal from the auxiliary winding of the transformer for outputting a control signal in response to the reflected voltage signal. The valley lock circuit is coupled to receive the control signal for outputting a judging signal in response to the control signal during a first period and a second period following the first period. The PWM circuit outputs a switching signal in response to the judging signal. | 12-15-2011 |
20130027988 | SWITCHING CONTROLLER FOR FLYBACK POWER CONVERTERS WITHOUT INPUT CAPACITOR - The present invention proposes a switching controller of a flyback power converter. The switching controller includes a switching circuit, a sample-and-hold circuit, a voltage detection circuit, an oscillation circuit, and a comparator. The voltage detection circuit generates a holding signal when a level of an input voltage of the flyback power converter is lower than a low-threshold. The oscillation circuit limits the maximum frequency of switching signal. The maximum frequency is increased in response to a decrement of a modulation signal. The modulation signal correlated with a level of the input voltage is used to generate a control signal when the level of the input voltage is lower than an ultra-low-threshold. The control signal is enabled to operate the flyback power converter in continuous current mode operation. Therefore, an input capacitor can be eliminated and manufacturing cost is saved. | 01-31-2013 |
Chao-Chih Liu, Taichung City TW
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20140091075 | SOLDERING DEVICE FOR PLASTICS ADHERING - A soldering device for plastics adhering includes a handle having two protruded rings and a button assembly, a body having a pivoting portion and a head portion, the body pivotally rotated relative to the handle in a certain angle between the body and the handle, two conducting rods electrically connected to the button assembly, one end of each conducting rod inserted into the body, another end of each conducting rod exposed out from the body, an electrical storage element assembled into the handle and electrically connected to the button assembly and the two conducting rods. Therefore, when a user presses the button assembly, a unit of electricity is delivered to the conducting rod, so that an amount of heat is generated to adhere or repair an article. | 04-03-2014 |
20140230611 | WRENCH DEVICE - A wrench device includes a handle, a driving member and a driving sleeve, the handle having a fork portion defined at one end thereof, the fork portion being pivotally assembled with the driving member, the handle having a screwing portion defined at another end thereof, a screwing hole being opened at one end of the screwing portion, an opening of the screwing hole being opposite to the fork portion, the driving sleeve sleeving on an outer periphery of the screwing portion. Under this arrangement, a user applies a sleeving member to sleeve on the driving member so as to screw or unscrew a bolt; in addition, the user also can operate the screwing portion of the wrench device to screw or unscrew the bolt. | 08-21-2014 |
20150128770 | HAND TOOL WITH AN ANGLE ADJUSTING MECHANISM - A hand tool with an angle adjusting mechanism includes a handle, a tool head, a controlling rod and an engaging member. The handle has a receiving groove defined at one end thereof, a transverse hole defined in one lateral side and a longitudinal hole defined in a bottom of the receiving groove. The tool head has a pivoting portion assembled in the receiving groove of the handle. The pivoting portion has a low of teeth defined at an outer periphery thereof The controlling rod is disposed in the transverse hole of the handle. The engaging member has a post and an engaging head. The engaging head has an inner tooth part and two side teeth disposed at opposite sides of the inner tooth part. The inner tooth part and the side teeth form a substantially concave shape to engage with the teeth of the pivoting portion. | 05-14-2015 |
Chao-Chih Liu, Taipei TW
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20140139993 | MOUNTING STRUCTURE FOR DATA STORAGE DEVICE AND ELECTRONIC DEVICE USING THE SAME - A mounting structure for a data storage device includes a receiving member and a fastening member. The receiving member has a bottom wall and a side wall and the data storage device is located between the bottom wall and the side wall. The bottom wall has a first edge and a second edge adjacent to each other. The fastening member is disposed inside the receiving member and can rotate pivotally between the first edge and the second edge. The fastening member includes a rod member, a hook and an elastic piece. When the data storage device is enclosed in the receiving member, the rod member and the elastic piece sandwich and lean against the data storage device and the hook clasps on the data storage device. When the hook is off the data storage device, the elastic piece pushes the data storage device out from the receiving member. | 05-22-2014 |
20140139997 | INSTALLATION STRUCTURE OF DATA STORAGE DEVICE AND DATA STORAGE SYSTEM USING THE SAME - An installation structure of a data storage device used for installing the data storage device in a case includes a frame, a pair of fastening portions and a pair of ring pulls. The frame includes a bottom and a pair of side walls. Each side wall has an outer surface facing the bottom rearwardly and an inner surface facing the bottom. The data storage device is accommodated between the bottom and the side walls. The pair of fastening portions is respectively connected with a pair of end portions of the pair of side walls, extended toward a direction further away from each side wall, and inclined toward a direction each outer surface faces. The pair of ring pulls is respectively connected with the pair of fastening portions, extended toward a direction further away from each side wall, and inclined toward a direction each of the inner surfaces faces. | 05-22-2014 |
Chao-Chih Wang, Taipei TW
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20100052985 | ELECTRONIC DEVICE HAVING GNSS RECEIVER AND ACTIVATING AND POSITIONING METHOD THEREOF - The prevent invention provides an activating and positioning method for an electronic device comprising at least a Global Navigation Satellite System (GNSS) receiver and a storage unit. The storage unit is utilized for storing a time file recording time information so that the time file can be obtained when activating the electronic device, and the time information recorded by the time file can be set as a current system time of the electronic device. Then, the activating and positioning method of the prevent invention activates the GNSS receiver to perform a positioning process according to the system time. Thus, the prevent invention can overcome disadvantages of the prior art which records system time by using hardware scheme. | 03-04-2010 |