Cheng-En
Cheng-En Chang, Taipei TW
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20120286733 | BATTERY SYSTEM AND BATTERY EQUALIZER - A battery equalizer for equalizing electrical energy of a first battery unit and a second battery unit includes a first diode, a first switch, a second diode, a second switch, a capacitor and an inductor. The components are electrically connected to be able to form different circuit loops to equalize the electrical energy of the two battery units. | 11-15-2012 |
Cheng-En Chien, Tu-Chen TW
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20130221953 | ABSOLUTE POSITION RECORDING DEVICE OF MOTOR - An absolute position recording device of a motor includes a main spindle, a magnetic ring, a magnetic induction unit, an encoder, a counter, and an operation unit. The magnetic ring and the encoder are fixed on and rotated by the main spindle. The magnetic induction unit outputs square waves and the encoder outputs sine or cosine waves. The counter receives the square waves and calculates a number of rotations of the magnetic ring. The operation unit receives the sine or cosine waves and calculates an angular deflection relative to a standard position of the magnetic ring. The operation unit adds the angular deflection and the number of rotations and calculates an absolute angular position. | 08-29-2013 |
Cheng-En Ho, New Taipei City TW
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20130008288 | METHOD FOR CONTROLLING BETA-TIN ORIENTATION IN SOLDER JOINTS - A method for controlling the beta-tin crystal orientation in solder joints is provided. The method is suitable for joining metallization pads using a solder containing tin and silver. By adjusting the silver content in the solder within a specific range of equal to or more than 2.5 wt. % and less than 3.2 wt. %, the [001] axes of beta-tin crystals in the solder is aligned to be in the direction parallel with a solder/metallization pad interface substantially. Electromigration-induced solder deformations and metallization pad consumption can be significantly reduced when solder joints have such a microstructure. Additionally, the undesired Ag | 01-10-2013 |
20130153646 | METHOD FOR SUPPRESSING KIRKENDALL VOIDS FORMATION AT THE INTERFACE BETWEEN SOLDER AND COPPER PAD - The embodiment of the present invention relates to a method for suppressing Kirkendall voids formation in a solder joint. A solder alloy doped with 0.1˜0.7 weight percent (wt. %) of palladium (Pd) is utilized. Before soldering, the solder alloy is disposed on a copper (Cu) pad, possibly treated with a surface finish. Subsequently, the solder alloy is joined with the Cu pad, so as to form the solder joint with a Cu/Cu | 06-20-2013 |
20140126955 | SOLDER JOINT WITH A MULTILAYER INTERMETALLIC COMPOUND STRUCTURE - A solder joint with a multilayer IMC structure is provided. The solder joint includes a Cu pad, a Sn-based solder, a first, a second, and a third IMC layer. The Cu pad is disposed opposite to the Sn-based solder. The first IMC layer is disposed between the Cu pad and the Sn-based solder. The first IMC layer is a Cu | 05-08-2014 |
Cheng-En Hsieh, Kaohsiung TW
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20130076553 | SAR ADC CAPABLE OF REDUCING ENERGY CONSUMPTION - An SAR ADC capable of reducing energy consumption, including a voltage selecting circuit for configuring a capacitor circuit to form a first equivalent capacitor having a capacitance of (2m−1)C, a second equivalent capacitor having a capacitance of (2 | 03-28-2013 |
Cheng-En Lee, Tucheng City TW
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20120134868 | ROTARY SLIDING-VANE COMPRESSOR - A rotary sliding-vane compressor includes an air cylinder, a shaft eccentrically mounted in the air cylinder and rotatable by a motor, sliding vanes coupled to and movable back and forth along radially extending sliding grooves of the shaft, and an oil-gas separating device mounted in the air output port of the air cylinder. The shaft has an axial hole located on one end thereof and coupled to the output shaft of the motor, and two axle bushes respectively mounted on the two opposite ends. Each sliding vane comprises a metal substrate having evenly distributed through holes, and a covering material molded on the surface of the metal substrate and filled up the through holes and having a plurality of discharge grooves. | 05-31-2012 |
20120171956 | BLUETOOTH SECURITY SYSTEM - A Bluetooth security system includes a master unit and a slave unit for matched connection by means of Bluetooth technology, an inquiry procedure adapted for monitoring the connection signal between the master unit and the slave unit, and an alarm device installed in each of the master unit and the slave unit and adapted for receiving a feedback signal from the inquiry procedure to output an alert message when the strength of the connection signal between the master unit and the slave unit drops below a predetermined threshold. | 07-05-2012 |
Cheng-En Liu, Taichung City TW
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20140152356 | FREQUENCY TRACING CIRCUIT AND METHOD THEREOF - A frequency tracking circuit is disclosed. The frequency tracking circuit includes an edge selector, a phase-frequency processor and a digital controlled oscillator. The edge selector receives a data signal and feedback clock signal and sequentially outputs a data edge signal and a feedback-clock-edge signal. The phase-frequency processor receives the data edge signal and the feedback-clock-edge signal and outputs a frequency adjusting digital signal after executing differential operation according to a first phase difference and a second phase difference. The digital controlled oscillator receives the frequency adjusting digital signal so as to adjust frequency of the feedback clock signal. The phase-frequency processor outputs a frequency tracking signal to the edge selector, wherein the edge selector utilizes the frequency tracking signal for acquiring the data edge signal and utilizes the data edge signal for acquiring the feedback-clock-edge signal. | 06-05-2014 |
Cheng-En Shen, Pingzhen City TW
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20100242679 | METHOD FOR CONTINUOUSLY FABRICATING SILVER NANOWIRE - The invention discloses a method for continuously fabricating silver nanowires. The method mixes a glycol solution of a silver salt and a glycol solution of a polyvinyl pyrrolidone, and the mixed solution reacts in a temperature range and a time range to form the silver nanowires. The polyvinyl pyrrolidone has high boiling point and reduction ability so as to reduce the silver salt to the silver nanoparticles, and simultaneously, the polyvinyl pyrrolidone can provide barriers for limiting the particle growth. Besides, the oxygen functional groups on the long chains of the polyvinyl pyrrolidone can keep the stably one-dimensional growth of the silver nanoparticles to form the silver nanowires during the aging process. | 09-30-2010 |
Cheng-En Tsai, New Taipei City TW
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20130186599 | HEAT DISSIPATING DEVICE AND METHOD OF MANUFACTURING THE SAME - A heat dissipating device includes a base, a heat pipe and a fixing member. The base includes an accommodating recess and two restraining portions, wherein the two restraining portions are located at opposite sides of the accommodating recess and an opening is between the two restraining portions. A first end of the heat pipe is disposed in the accommodating recess such that a bottom surface of the first end is exposed out of the opening, wherein a width of the opening is smaller than a maximum width of the first end. The fixing member is disposed on the base such that the first end of the heat pipe is fixed between the fixing member and the two restraining portions. | 07-25-2013 |
Cheng-En Tsai, Taichung City TW
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20150321715 | Three Dimensional Flywheel Vehicle - The invention proposes a three dimensional flywheel vehicle, comprising multiple spherical shells, including outer spherical shell, middle spherical shell and inner spherical shell, wherein each of spherical shell is 3D flywheel. At least one casting/frame is connected to the three spherical shells. The plurality of actuators comprises first actuator, second actuator and third actuator for actuating the outer shell, the middle shell and the inner shell, respectively. The first actuator, the second actuator and the third actuator are connected to one of the at least one casting/frame or one of the three spherical shells. | 11-12-2015 |
Cheng-En Wu, Taipei City TW
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20100164411 | LIGHTING SYSTEM - A lighting system including a powering rod and a first lighting unit is provided. The powering rod is used for providing power. The first lighting unit includes a housing, a light source, an inner ring body and an outer ring body. The light source is disposed inside the housing. The inner ring body, disposed in the housing, has a hollowed portion for receiving the powering rob and is electrically connected to the powering rod. The outer ring body, disposed on the inner ring body fixed to the housing. The outer ring body is capable of rotating with respect to the inner ring body for rotating the housing. When the outer ring body is rotated to a first position, the first lighting unit is in a first lighting state. When the outer ring body is rotated to a second position, the first lighting unit is in a second lighting state. | 07-01-2010 |
20100218137 | CONTROLLING METHOD FOR ELECTRONIC DEVICE - A controlling method for an electronic device having a screen is provided. A first GUI element is displayed on the screen. An operation distance and an operation time between a first object and a second object above the screen corresponding to the first GUI element are detected. Operation functions are selectively performed to the first GUI element by the electronic device according to the operation distance and the operation. | 08-26-2010 |
Cheng-En Wu, Taoyuan County TW
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20150161447 | VISION BASED PEDESTRIAN AND CYCLIST DETECTION METHOD - A vision based pedestrian and cyclist detection method includes receiving an input image, calculating a pixel value difference between each pixel and the neighbor pixels thereof, quantifying the pixel value difference as a weight of pixel, proceeding statistics for the pixel value differences and the weights, determining intersections of the statistics as a feature of the input image, classifying the feature into human feature and non-human feature, confirming the human feature belonging to cyclist according to the spatial relationship between the human feature and the detected two-wheeled vehicle, and retaining one detection result for each cyclist by suppressing other weaker spatial relationships between the human feature and the detected two-wheeled vehicle. | 06-11-2015 |
Cheng-En Yang, Changhua Hsien TW
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20090194991 | Iron pipe furniture assembly structure - This invention provides an iron pipe furniture assembly structure principally using the pipe connector as the connection construction component of the supporting shaft and the pipe element, and utilizing the elongated round-shaped fastening shaft of the pipe connector at the insertion center for connection with the pipe element and coupled with the diamond round-shaped insertion hole of the insertion cork of the pipe element end portion and the long diameter direction slot of the insertion hole to give sufficient room for movement, and further supplemented with the indent groove on the lateral side near the end portion of the pipe element for the tool to operate and spiral turn the pipe element, thereby the assembly operation of the pipe element and the pipe connector can be easily and speedily accomplished with certain simple insertions and spiral turning operations. | 08-06-2009 |