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Chang, Pingzhen City
Chia-Hsiang Chang, Pingzhen City TW
| Patent application number | Description | Published |
|---|---|---|
| 20110062996 | POWER ON DETECTION CIRCUIT - A power-on-detection (POD) circuit includes first and second comparators, a voltage divider, a detection circuit coupled to a first voltage source node and the voltage divider, and logic circuitry coupled to outputs of the first and second comparators. The detection circuit outputs a control signal identifying if a first voltage source node has a voltage potential that is higher than ground. The control signal turns on and off the first and second comparators, which are respectively coupled to first and second nodes of the voltage divider and to a reference voltage node. The logic circuitry outputs a power identification signal based on the signals received from the outputs of the first and second comparators. | 03-17-2011 |
| 20110084682 | PROGRAMMABLE CURRENT MIRROR - A programmable current mirror a reference transistor, first and second mirror transistors, and a first current bypass. The reference transistor has a source and a gate coupled to a reference current node. The first and second mirror transistors are coupled together in series at a first node. Each of the first and second mirror transistors having gates coupled to each other and to the gate of the reference transistor. The first current bypass including a switch disposed in parallel with the second mirror transistor. The first current bypass is coupled to a source and a drain of the second mirror transistor and to the first node. | 04-14-2011 |
Chih-Yang Chang, Pingzhen City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100066268 | LED Light Source Module and Constant-Current Unit Structure for Use Therewith - An LED light source module and a constant-current unit structure for use therewith are provided. The LED light source module includes a constant-current unit and an LED set. The constant-current unit includes a voltage stabilizing unit and a resistor. The resistor is parallel-connected between two output ends of the voltage stabilizing unit. An input end of the constant-current unit receives DC voltage, and one of the output ends of the constant-current unit outputs constant current. The LED set is electrically connected to the output end of the constant-current unit to receive constant current therefrom so as for the LED set to be powered-on. Regardless of fluctuation in the DC voltage received, the constant-current unit outputs stable constant current, and the LED set emits light steadily, thereby protecting the LED set against overcurrent-induced damage. | 03-18-2010 |
Hen-Rong Chang, Pingzhen City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100108177 | Apparatus for making tubular film transistors - Disclosed is an apparatus for making tubular-shaped membrane electrode assembly. The apparatus includes a guiding unit (or guiding rod or guiding tube or guiding wire) for guiding the direction of MEA production, a first weaving unit for weaving conductive fiber bundles into a first tubular conductive fabric around the guiding unit, a first catalyst-providing unit for forming a first catalyst film on the first tubular conductive fabric, a proton-exchange-membrane-providing unit for providing a proton-exchange-membrane on the first catalyst film, a second catalyst-providing unit for forming a second catalyst film on the proton-exchange-membrane, a second weaving unit for weaving conductive fiber bundles into a second tubular conductive fabric on the second catalyst film and a cooling and pulling unit for cooling and pulling the first tubular conductive fabric, the first catalyst film, the proton-exchange-membrane, the second catalyst film and the second tubular conductive fabric into a tubular laminate. The tubular laminate can be cut into tubular-shaped membrane electrode assembly of appropriate lengths. | 05-06-2010 |
| 20100201021 | Method for fabricating membrane electrode assembly - Two catalyst electrode layers (CEL) are separately formed on two surfaces of a proton exchange membrane (PEM). The structure and processes are simple in the present invention for obtaining a membrane exchange assembly (MEA) with its thickness controllable. The MEA obtained can have a structure of CEL+PEM+CEL′. If a gas diffusion layer (GDL) is added before obtaining the CEL, a MEA having a structure of GDL+CEL+PEM+CEL′+GDL′ is obtained. | 08-12-2010 |
Tsai-Yu Chang, Pingzhen City TW
| Patent application number | Description | Published |
|---|---|---|
| 20120017403 | Stop of a zipper - A stop of a zipper is mounted at an end of the zipper, is L-shaped and has a mounting protrusion and a limiting protrusion formed transversely on a proximal end of the mounting protrusion. When the mounting protrusion of the stop is mounted into a slider, the limiting protrusion and the slanted upper surface of the limiting protrusion prevent the slider from further sliding into a channel of the slider so the slider stops actually. Moreover, corners and edges of the stop may be all rounded so the stop is able to smoothly slide into the slider. | 01-26-2012 |
Wen-Nan Chang, Pingzhen City TW
| Patent application number | Description | Published |
|---|---|---|
| 20110089738 | Headrest Set for Office Chair - A headrest set for office chairs includes a bracket whose lower end is fastened on a rear side of a seat back while a top end of the bracket connects with and supports a backside plate of the headrest, a headrest, and an elastic buffering member arranged between the backside plate of the headrest and the top end of the bracket. By deformation of an elastic member, the headrest set has buffering effects. When the user's head suddenly leans against a headrest surface or the user changes the posture from sitting to reclining, the impact caused by the reaction force of the headrest surface is buffered and the headrest surface is automatically adjusted so as to enhance comfort of the headrest. | 04-21-2011 |
| 20110095588 | Two-Stage Adjusting Member for Adjusting Slope of Seat Back - A two-stage adjusting member for adjusting slope of a seat back formed by a first stage adjusting member and a second stage adjusting member is disclosed. A user operates the first stage adjusting member so that the seat back reclines from 90 degrees to 70 degrees to the horizontal. Then the users operates the second stage adjusting member so as to make the seat back further incline backward such as 10 degrees more to another slope. Thus the seat back slope is adjusted in two stages and such design is much more safer for users and can prevent danger or harm caused by suddenly reclining. | 04-28-2011 |
| 20110095591 | Headrest Bracket for Office Chair - A headrest bracket for office chairs includes a first bracket having a fastening surface on one side thereof for being fixed on a rear side of a seat back of an office chair, a first pivoting member disposed on a corresponding side, a second bracket whose lower end is disposed with a second pivoting member that forms an angle adjustment mechanism with the first pivoting member at different angles. While assembling the first and the second brackets to form a headrest bracket, there are various assembling models with different angles between the second bracket and the fastening surface of the first bracket formed by means of the angle adjustment mechanism so that the headrest bracket can be assembled with different types of seat back of the office chair. | 04-28-2011 |
| 20110109145 | Armrest assembly - An armrest assembly applied to connect an armrest with a seat bottom. The armrest includes an armrest member, an armrest support and a fastening plate extending from a bottom end of the armrest support toward the seat. The fastening plate is arranged with a plurality of fastening holes so that the fastening plate is secured on the seat bottom by inserting screws through the fastening holes. The armrest assembly uses a pad with tapered plane being fixed on a fastening plate on a bottom side of an armrest support to adjust the relative position of the fastening plate and a bottom side of the seat. Thus the armrests are arranged vertically on two sides of the chair. Moreover, one armrest of the present invention is applied to connect with a plurality of chair seats so as to increase applications of the armrest. | 05-12-2011 |