| Patent application number | Description | Published |
|---|
| 20080218124 | Lithium battery pack and system for charging the same - A lithium battery pack according to the present invention has inherent information stored therein, which comprises a plurality of cells, nominal voltage, maximal voltage of the cells, range of temperature etc. A charging parameter is determined by a charging controller based on an identified data of the cells and the inherent information, and is transmitted to an adapter. A controlled module in the adapter receives the charging parameter through a control terminal and adjusts an AC/DC circuit to output a current with accurate charging voltage to the battery pack. | 09-11-2008 |
| 20080266542 | DISTANCE MEASURING DEVICE - A distance measuring device has a housing carrying a display, a distance measuring module, an inductive touch pad, a touch pad control circuit in communication with the touch pad, and a control circuit in communication with the display, the distance measuring module, and the touch pad control circuit. The touch pad control circuit provides signals to the control circuit representative of a touching of the touch pad. | 10-30-2008 |
| 20090135406 | OPTOELECTRONIC DISTANCE MEASURING DEVICE - An optoelectronic distance measuring device includes a frequency modulator generating a high-frequency modulation signal, an emitter emitting a high-frequency modulated measuring beam to an object to be measured, an avalanche photodiode receiving a reflected measuring beam from the object and generating a corresponding high-frequency reflected measuring signal, and a signal generating device generating a high-frequency mixer signal connected with the avalanche photodiode. The high-frequency mixer signal is applied to the avalanche photodiode and mixed with the high-frequency reflected measuring signal to provide a low-frequency measuring signal which contains phase information for calculating a distance to be measured. In this manner, measuring error due to phase drift is eliminated without the need for an extra internal reference optical path and an mechanical switching device so that the structure of the device is simplified significantly and manufacturing costs are reduced. | 05-28-2009 |
| 20100123893 | Laser distance measuring device - The laser distance measuring device of the present invention comprises an emitting part having a laser generating device with a first spectral bandwidth arranged on an emitting optical path and a collimating lens. The emitting part also has an optical filter with a second spectral bandwidth which is less than the first spectral bandwidth. The laser distance measuring device also has a receiving part having a photoelectric receiving and conversion device to receive the measuring beam reflected by the object to be measured and convert it into an electric signal. Using the optical filter, most of the unneeded portions of the laser beam emitted from the laser are filtered out so that the useful proportion of the measuring beam of the laser beam is improved and the ranging capability of the laser distance measuring device under a bright or strong light environment is enhanced. | 05-20-2010 |
| 20100269355 | Control method for motor-driven shears - The present invention relates to a control method for motor-driven shears. The control method for the motor-driven shears of the present invention requires that both the power supply module and the control system used to drive the motor be active simultaneously for the shears to operate. The power supply module requires a switch be pressed to activate the power supply module and to provide the resultant power to the MCU. Further, upon releasing the switch, the MCU is be able to maintain the power supply module in a discharging state long enough to allow the control system controlling the motor to rotate the movable blade to an open position. Finally, when the movable blade is opened to a maximum position, the MCU may direct the motor to stop rotation and shut off the power supply module. | 10-28-2010 |
| 20100283990 | Optoelectronic distance measuring device - The optoelectronic distance measuring device of the present invention comprises a signal generator for generating a high frequency signal, an emitter for emitting an optical beam signal towards an object to be measured, a photoelectric receiving and transforming device for receiving the reflected measuring optical and for generating a corresponding high frequency reflected measuring signal. The present invention further comprises a phase detector for performing a frequency mixing of signals and a signal processing device connected with the phase detector for determining the measured distance. | 11-11-2010 |
| 20100308776 | BATTERY CHARGER - A charger for lithium battery pack has a voltage input terminal, a current control module and a voltage output terminal including a voltage-rising module and a voltage-detecting module connected with the voltage-rising module and the voltage input terminal. | 12-09-2010 |
| 20110012564 | DC POWER TOOL WITH A SAFETY DETECTION DEVICE - A DC power tool having an interiorly provided lithium battery element and a charging switch includes a safety protection module to eliminate the risk of circuitry burn-out and other dangers resulting from connecting the power tool to a power supply with unmatched rated voltage and rated current when charging the power tool via use of an adapter. | 01-20-2011 |
| 20110051122 | OPTOELECTRONIC RANGE FINDER - A device for optoelectronic distance measurement includes an emitter having a first end for emitting a measuring beam to an object to be measured and a second end, a receiver for receiving the measuring beam reflected or dispersed back from the object to be measured and for converting it to a measurement signal, a signal processing device for filtering the measurement signal and a reference signal, and a control and analysis device for analyzing the information of the measurement signal and the reference signal so as to determine the distance from the object to be measured. The second end of the emitter is used to emit a reference beam which is received by the receiver and converted to form the reference signal. | 03-03-2011 |
