| Patent application number | Description | Published |
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| 20110068933 | PERSONAL WATER SAFETY DEVICE - A personal water safety device includes a barrel portion, and a base part. The base part connects two portions of a swimming goggle frame. The barrel portion includes a button, and a cylinder connected to the button via a spring. The base part includes a timer connected to the cylinder, and an alarm electrically connected to the timer. Water enters the cylinder when the button is pressed, and the timer measures an elapsed time when electrical conductivity of interior of the cylinder is in a predetermined range. The alarm generates an alarm when the measured time exceeds a predetermined time limit. | 03-24-2011 |
| 20110074586 | PERSONAL WATER SAFETY DEVICE AND METHOD THEREOF - A personal water safety device includes at least three base stations, at least one water sensing device, and an alarm apparatus. The at least one water sensing device wirelessly communicates with each of the at least three base stations. The alarm apparatus wirelessly communicates with each of the at least three base stations. Each water sensing device is worn by a swimmer and is triggered to measure elapsed time when the swimmer submerges in water, and transmits the measured time to the at least three base stations. The alarm apparatus receives the measured time transmitted from each of the at least three base stations, and generates an alarm when the measured time of one of the at least water sensing device exceeds a predetermined time limit. | 03-31-2011 |
| 20110090763 | PERSONAL WATER SAFETY DEVICE AND METHOD THEREOF - A personal water safety device includes at least two sonar receivers, at least one water sensing device, and an alarm apparatus. The at least one water sensing device communicates with each of the at least two sonar receivers via sound waves. The alarm apparatus wirelessly communicates with each of the at least two sonar receivers. Each water sensing device is worn by a swimmer and is triggered to measure an elapsed time when the swimmer submerges in water, and transmits the measured time and a corresponding identification number to the at least two sonar receivers via the sound waves. The alarm apparatus receives the measured time and the corresponding identification number transmitted from each of the at least two sonar receivers, and generates an alarm when the measured time of one of the at least water sensing device exceeds a predetermined time limit. | 04-21-2011 |
| 20110157000 | PROJECTION SYSTEM AND METHOD - A projection system includes first and second cameras, a projector, and a processing unit. The first camera captures an object to obtain an image of the object. The projector projects the image of the object and a number of symbols to a projection region. The symbols in the projection region forms controlling symbols. The second camera captures the projection region to obtain an image of the projection region. The image of the projection region is detected to determine whether one controlling symbol is selected. If a controlling symbol is selected, the processing unit controls the first camera, the second camera, or the projector correspondingly. | 06-30-2011 |
| Patent application number | Description | Published |
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| 20090133530 | ONE-WAY ACTUATOR - An actuator for providing functions of one-way actuation and shiftless rotation includes a main body, two rolling elements, and a recovery apparatus, in which an accommodating space is arranged in the main body and has two frictional faces corresponding to each other with a tapered distance between them. Initially, two rolling elements are arranged at one side of the accommodating space of a wider spacing distance and then make a rolling contact with two frictional faces respectively to be displaced toward a narrower side of the accommodating space through the recovery apparatus, so that an aforementioned one-way actuator is thus constructed. | 05-28-2009 |
| 20090205449 | STEPLESS UNIDIRECTIONAL ROTATION DEVICE - A stepless unidirectional rotation device includes a housing, a connecting component, a lower roller bearing, turntable assembly, a switching mechanism, a suppressing component and an upper roller bearing. The housing has a receiving room. The connecting component includes a shaft, and one end of the shaft extends out of the receiving room. The lower roller bearing is disposed in the receiving room and rolling contacts with the housing. The turntable assembly includes a rotating disc and a washer. The rotating disc includes a flat surface and an oblique surface. The switching mechanism is connected with the rotating disc. The suppressing component is disposed in the receiving room and is set around the shaft. The upper roller bearing is sandwiched between the washer and the suppressing component and rolling contacts with the suppressing component. Thus, the self-locking or loose problem can be avoided. | 08-20-2009 |
| 20090282936 | ONE-WAY ACTION MECHANISM - A one-way action mechanism capable of rotating steplessly includes a main body, a rotary element and a friction element. The main body is provided thereon with a pivotal hole and a recessed space in communication with the pivotal hole. One side of the recessed space away from the pivotal hole has a friction surface. The rotary element is formed into a circular ring and is pivotally connected in the pivotal hole. The outer periphery of the rotary element is formed by a plurality of teeth. The friction element is received in the recessed space and has a gear and a friction wheel covering the gear. The friction element is restricted by an elastic element, so that the friction wheel can be brought into a rotary and frictional contact with the friction surface. An intermediate gear is drivingly engaged between the rotary element and the gear of the friction element. | 11-19-2009 |
