Abstract: A detection circuit is used to detect a connection state between a first signal port of an electronic device and a first external device. The detection circuit includes a signal generator, a switch module, a signal detector, and a processing unit. The signal generator generates a test signal. During a test process, the signal generator is electrically connected to the first signal port by the switch module, such that the test signal is sent to the first signal port to test the connection state of the first signal port. The signal detector produces a detection signal according to the connection state of the first signal port. The processing unit determines the state of connection between the first signal port and the first external device by comparing the voltage of the detection signal with a threshold value.

Abstract: A multifunctional treadmill is provided with a platform on the running deck. A reception cavity is formed on a top of the platform, the reception cavity has a sensor and an operating board tiltably mounted on one side of the reception cavity. When the operating board is released for the reception cavity, the treadmill is in a standard speed mode. When the user wants to exercise and work or do other activities at the same time, the user can store the operating board into the reception cavity so that the operating board and a top surface of the platform become a workbench. Simultaneously, the sensor is triggered and the treadmill changes to a low speed mode. Thus, the safety may be improved by forcefully restricting the speed of the running deck.

Abstract: An antenna is provided and characterized by searching a look-up table for emission angle information according to an incident angle of a radio frequency input signal and driving an antenna array to emit a radio frequency output signal in a direction corresponding to an incident direction of the radio frequency input signal according to the emission angle information.

Abstract: A method for calculating an attitude angle and an apparatus therefor are provided. The method includes: detecting a satellite signal by using a first antenna array to obtain a plurality of first input signals, detecting the satellite signal by using a second antenna array to obtain a plurality of second input signals, performing a phase operation according to the plurality of first input signals to generate a plurality of first output signals, performing the phase operation according to the plurality of second input signals to generate a plurality of second output signals, obtaining a relative attitude angle according to the plurality of first output signals and the plurality of second output signals, obtaining an absolute attitude angle from the satellite signal, and generating an actual attitude angle of a vehicle according to the absolute attitude angle and the relative attitude angle.

Abstract: An antenna is provided and characterized by searching a look-up table for emission angle information according to an incident angle of a radio frequency input signal and driving an antenna array to emit a radio frequency output signal in a direction corresponding to an incident direction of the radio frequency input signal according to the emission angle information.

Abstract: A multifunctional treadmill is provided with a platform on the running deck. A reception cavity is formed on a top of the platform, the reception cavity has a sensor and an operating board tiltably mounted on one side of the reception cavity. When the operating board is released for the reception cavity, the treadmill is in a standard speed mode. When the user wants to exercise and work or do other activities at the same time, the user can store the operating board into the reception cavity so that the operating board and a top surface of the platform become a workbench. Simultaneously, the sensor is triggered and the treadmill changes to a low speed mode. Thus, the safety may be improved by forcefully restricting the speed of the running deck.

Abstract: A detection circuit is used to detect a connection state between a first signal port of an electronic device and a first external device. The detection circuit includes a signal generator, a switch module, a signal detector, and a processing unit. The signal generator generates a test signal. During a test process, the signal generator is electrically connected to the first signal port by the switch module, such that the test signal is sent to the first signal port to test the connection state of the first signal port. The signal detector produces a detection signal according to the connection state of the first signal port. The processing unit determines the state of connection between the first signal port and the first external device by comparing the voltage of the detection signal with a threshold value.

Abstract: Disclosed is aqua-printing gelatinous film and aqua-printing method using the same, in which a UV coating layer is formed on the surface of a water soluble gelatinous film, and a pattern is printed thereon, after that a protecting layer is covered over there so as to make up the aqua-printing gelatinous film which is brought to print on the surface of a working piece. Then the work piece is radiated with the UV ray from a UV lamp thereby pattern is fixedly printed on the work piece. The working process is simple, efficient and neat without causing pollution.

Abstract: A method for fining water molecules mainly comprises the steps of driving the water to flow through a reverse osmosis device for filtering impurities; feeding the water to a heating device; feeding boiling water into a plurality of first mineral stone collision devices so as to form fine water molecules; cooling the fine water molecules; driving the cooling fine water molecules through a plurality of second mineral stone collision devices to fix the shape of the fine water molecules; driving the shape fine water molecules to flow through maifan stones; feeding the fine water molecules into a supersonic oscillating device and sterilizing germs in the water molecules by for example ultraviolet rays. An apparatus for forming fine water molecules is further comprised.