Abstract: A power converter and a control method using the same are provided. The converter includes a power output stage, a feedback circuit, and an input detecting circuit. The power output stage transfers an input voltage to an output voltage, and adjusts the output voltage according to a feedback signal. The feedback circuit is used for generating the feedback signal associated with the output voltage. The input detecting circuit is used for detecting a variation of the input voltage to produce an input related signal associated with the input voltage. The input related signal is used to influence the feedback signal in linkage, so as to change the output voltage of the power output stage.

Abstract: A power supply system with a variable supply voltage is provided. The power supply system includes a power adaptor, a battery unit, a switching circuit, and a main equipment. The power adaptor is suitable for producing a power voltage. The switching circuit selects the power adaptor or the battery unit for powering the main equipment. Wherein, the power adaptor adjusts the power voltage according to whether the battery unit performs a charge operation.

Abstract: An antenna structure consists of a substrate, a radiation element, a signal feeding element, and a grounding element. The radiation element includes a first radiator and a second radiator coupled to the first radiator, wherein the first radiator is identical to the second radiator. The signal feeding element is coupled to a joint of the first radiator and the second radiator, wherein the first radiator and the second radiator are symmetrically disposed in the left and right sides of the signal feeding element to permute an array. The grounding element includes a first grounding sub-element and a second grounding sub-element, wherein the first grounding sub-element is coupled between the first radiator and the substrate and the second grounding sub-element is coupled between the second radiator and the substrate. The first grounding sub-element is identical to the second grounding sub-element.

Abstract: An antenna module for wireless signal transmission of an electronic device is disclosed. The antenna module comprises an antenna body and a fixing part. The antenna body comprises a radiating element, a grounding element, a connecting element, and a feeding point. The radiating element has a first radiating area and a second radiating area. The connecting element has a first end and a second end. The first end is connected with the first radiating area of the radiating element and the second end is connected with the grounding element. The feeding point is disposed on the radiating element and is used to feed a signal. The fixing part comprises a main body and a first clip portion. The main body is used to match the shape of the antenna body. The first clip portion is used to clip and fix the antenna body.

Abstract: The antenna of the invention includes a transceiver unit and a dielectric unit. The transceiver unit has a ground portion, a radial portion, a conductive portion and a feed portion. The ground portion and the radial portion are disposed apart in parallel, so as to form a space therebetween. The distance between the ground portion and the radial portion is defined as a transceiver unit height. The dielectric unit is disposed in the space. That is, the dielectric unit is disposed between the ground portion and the radial portion. The dielectric unit has a dielectric unit thickness less than the transceiver unit height. In one embodiment, the ratio of the dielectric unit thickness to the transceiver unit height is preferably between 0.4 and 0.7.

Abstract: An external antenna module includes a signal terminal for connecting to an electronic device; an antenna, electrically connected to the signal terminal, for transmitting and receiving corresponding radio signals; and an identification tag unit, coupled to the signal terminal, for generating a specific identification signal.

Abstract: An electronic device with external antenna identification function includes a plurality of external antenna modules, each of which includes an antenna and an identification tag unit for generating a specific identification signal to identify the external antenna module according to a query signal, a connection port, a identification tag authorizing module, coupled to the connection port, for outputting the query signal when one of the plurality of external antenna modules is connected to the connection port and for generating a identification result according to the specific identification signal generated by the external antenna module, and a radio transceiver module, coupled to the connection port and the identification tag authorizing module, for transmitting and receiving corresponding radio signals according to the identification result.

Abstract: An occupant detection system and method are provided. The system includes a capacitive sensor having an electrode arranged in a seat proximate to an expected location of an occupant for sensing an occupant presence approximate thereto. The capacitive sensor is configured to provide an output indicative of the sensed occupant presence. The system also includes a force sensor arranged within the seat providing an output indicative of a sensed force applied to the seat. The system further includes occupant detection circuitry for processing the capacitive sensor output and force sensor output and detecting a state of occupancy of the seat based on the capacitive sensor output and the force sensor output.

Abstract: An antenna structure consists of a substrate, a radiation element, a signal feeding element, and a grounding element. The radiation element includes a first radiator and a second radiator coupled to the first radiator, wherein the first radiator is identical to the second radiator. The signal feeding element is coupled to a joint of the first radiator and the second radiator, wherein the first radiator and the second radiator are symmetrically disposed in the left and right sides of the signal feeding element to permute an array. The grounding element includes a first grounding sub-element and a second grounding sub-element, wherein the first grounding sub-element is coupled between the first radiator and the substrate and the second grounding sub-element is coupled between the second radiator and the substrate. The first grounding sub-element is identical to the second grounding sub-element.

Abstract: An antenna module for wireless signal transmission of an electronic device is disclosed. The antenna module comprises an antenna body and a fixing part. The antenna body comprises a radiating element, a grounding element, a connecting element, and a feeding point. The radiating element has a first radiating area and a second radiating area. The connecting element has a first end and a second end. The first end is connected with the first radiating area of the radiating element and the second end is connected with the grounding element. The feeding point is disposed on the radiating element and is used to feed a signal. The fixing part comprises a main body and a first clip portion. The main body is used to match the shape of the antenna body. The first clip portion is used to clip and fix the antenna body.

Abstract: The antenna of the invention includes a transceiver unit and a dielectric unit. The transceiver unit has a ground portion, a radial portion, a conductive portion and a feed portion. The ground portion and the radial portion are disposed apart in parallel, so as to form a space therebetween. The distance between the ground portion and the radial portion is defined as a transceiver unit height. The dielectric unit is disposed in the space. That is, the dielectric unit is disposed between the ground portion and the radial portion. The dielectric unit has a dielectric unit thickness less than the transceiver unit height. In one embodiment, the ratio of the dielectric unit thickness to the transceiver unit height is preferably between 0.4 and 0.7.

Abstract: A touch control pen assembly comprises a pen head including a touch head and the base; the touch head being placed in the base; one end of the touch head having a spring; a rear end of the touch head being formed with an annular groove for receiving the spring so as to form as the pen head; when the touch head being pressed downwards, the spring providing a buffer force to the touch head; and a pen shaft assembly connected to a rear end of the pen head for extending a length of the pen head so that a user can hold the pen conveniently. The pen head is detachable to be used with pen shaft assembly of different types. The spring at one end of the touch head will provides a buffer force for a pressed touch head so that the pen has uniform pointing forces.

Abstract: An electronic device and a related antenna module for integrating GPS signals and digital mobile television signals are provided. With variances of both frequency domains and bandwidths between GPS signals and digital mobile television signals in the VHF and UHF bands, said signals may be transmitted inside the electronic device with different paths without interfering with each other.

Abstract: An electronic device with external antenna identification function includes a plurality of external antenna modules, each of which includes an antenna and an identification tag unit for generating a specific identification signal to identify the external antenna module according to a query signal, a connection port, a identification tag authorizing module, coupled to the connection port, for outputting the query signal when one of the plurality of external antenna modules is connected to the connection port and for generating a identification result according to the specific identification signal generated by the external antenna module, and a radio transceiver module, coupled to the connection port and the identification tag authorizing module, for transmitting and receiving corresponding radio signals according to the identification result.

Abstract: A wireless communication device includes an internal antenna module, a DC power source, a signal processing module, a first low noise amplifier coupled to the internal antenna module including a signal input end, a power input end, and a signal output end. The wireless communication device further includes a switch including a first terminal for coupling to an external antenna module, a second terminal, and a third terminal. The wireless communication device further includes a first equivalent inductor coupled to the DC power source and the second terminal, a second equivalent inductor coupled to the input end of the first low noise amplifier and the third terminal, a first capacitor coupled to the signal output end of the first low noise amplifier and the third terminal, and a second capacitor coupled to the signal processing module and the second terminal.

Abstract: An electronic device and a related antenna module for integrating GPS signals and digital mobile television signals are provided. With variances of both frequency domains and bandwidths between GPS signals and digital mobile television signals in the VHF and UHF bands, said signals may be transmitted inside the electronic device with different paths without interfering with each other.

Abstract: A wireless communication device includes an internal antenna module, a DC power source, a signal processing module, a first low noise amplifier coupled to the internal antenna module including a signal input end, a power input end, and a signal output end. The wireless communication device further includes a switch including a first terminal for coupling to an external antenna module, a second terminal, and a third terminal. The wireless communication device further includes a first equivalent inductor coupled to the DC power source and the second terminal, a second equivalent inductor coupled to the input end of the first low noise amplifier and the third terminal, a first capacitor coupled to the signal output end of the first low noise amplifier and the third terminal, and a second capacitor coupled to the signal processing module and the second terminal.