Abstract: A tri-band antenna module includes a substrate, a first radiator, a second radiator, and a short-circuit structure. The substrate has a signal feed-in terminal and a ground terminal. The signal feed-in terminal is connected to the first radiator, and the ground terminal is connected to the second radiator. The first radiator includes a first extension block and a second extension block, and the second radiator includes a third extension block and a fourth extension block. The first extension block and the second extension block are separated by a first interval, and the third extension block and the fourth extension block are separated by a second interval. The short-circuit structure is connected between the first extension block and the third extension block, and the short-circuit structure is respectively separated from the first extension block and the third extension block by a first slot and a second slot.

Abstract: A transmission structure with a dual-frequency antenna is provided. The transmission structure includes a substrate, a first radiator and a second radiator. The first radiator has a first electrical connection portion. The first radiator extends from the first electrical connection portion in a first direction and a second direction, wherein the first direction is opposite to the second direction. The second radiator has a second electrical connection portion adjacent to the first electrical connection portion. The second electrical connection portion has a first side and a second side, wherein the first side is closer to the first electrical connection portion than the second side, the second electrical connection portion forms a ground area between the first side and the second side, and the length of the ground area is greater than a first set value.

Abstract: A transmission structure with a dual-frequency antenna is provided. The transmission structure includes a substrate, a first radiator and a second radiator. The first radiator has a first electrical connection portion. The first radiator extends from the first electrical connection portion in a first direction and a second direction, wherein the first direction is opposite to the second direction. The second radiator has a second electrical connection portion adjacent to the first electrical connection portion. The second electrical connection portion has a first side and a second side, wherein the first side is closer to the first electrical connection portion than the second side, the second electrical connection portion forms a ground area between the first side and the second side, and the length of the ground area is greater than a first set value.

Abstract: A charger circuit for use in controlling charge of a battery pack, which includes a charge control switch, a discharging circuit and a control unit. The charger circuit has at least one power output terminal and one connection terminal for coupling the battery pack. The charge control switch is arranged to selectively provide a power from a power source to the battery pack through the power output terminal. The discharging circuit is selectively coupled to the power output terminal, and arranged to discharge a battery cell of the battery pack when being coupled to the power output terminal. The control unit is coupled to the charge control switch and the discharging circuit, and determines whether to turn off the charge control switch and control the discharging circuit to couple to the power output terminal according to at least an over-voltage detection based on a signal based on the connection terminal.

Abstract: A charger circuit for use in controlling charge of a battery pack, which includes a charge control switch and a control unit. The charger circuit has at least one power output terminal and one connection terminal for coupling the battery pack. The charge control switch is arranged to selectively provide a power from a power source to the battery pack through the power output terminal. The control unit is coupled to the charge control switch and the connection terminal, and determines whether to turn off the charge control switch according to a signal based on the connection terminal, wherein the signal based on the connection terminal indicates at least one of an over-voltage condition and an over-temperature condition.

Abstract: A dipole antenna includes a substrate, a first region and a second region, which is used for frequency with wavelength ?. The substrate is flat rectangular and insulating material, which has a substrate width W which is at least 2.5 mm and a substrate length L. The substrate width W, the substrate length L and the wavelength ? complies with the formula: L/W=?(±10%). The first region and the second region is conducting material, the first region is disposed on the substrate and shifting to one side of the substrate, the second region is disposed on the substrate and shifting to another side of the substrate. Part of the first region is disposed adjacent to part of the second region and an adjacent region is formed between and a coupling effect is reduced.

Abstract: A dipole antenna includes a substrate, a first region and a second region, which is used for frequency with wavelength ?. The substrate is flat rectangular and insulating material, which has a substrate width W which is at least 2.5 mm and a substrate length L. The substrate width W, the substrate length L and the wavelength ? complies with the formula: L/W=?(±10%). The first region and the second region is conducting material, the first region is disposed on the substrate and shifting to one side of the substrate, the second region is disposed on the substrate and shifting to another side of the substrate. Part of the first region is disposed adjacent to part of the second region and an adjacent region is formed between and a coupling effect is reduced.

Abstract: An antenna structure is disclosed. The antenna structure includes a signal-feeding terminal; a first radiating conductor extending from the signal-feeding terminal along a first direction to include a first gradually widening path; a ground terminal configured to be separated from the signal-feeding terminal by a first gap; and a second radiating conductor extending from the ground terminal along a second direction perpendicular to the first direction to include a second gradually widening path.

Abstract: A charge control circuit includes an analog to digital converter (ADC) and a control unit, wherein the ADC is arranged for monitoring a temperature of a battery and converting the monitored temperature to a digital value; and the control unit is coupled to the analog to digital converter, and is arranged for determining whether to generate a control signal to adjust a charge current or a charging voltage of a battery or not according to the digital value, and the ADC and the control unit are fully hardware architectures.

Abstract: A dual-band antenna includes a substrate, a first antenna assembly, an isolation metal sheet, and a second antenna assembly. The first antenna assembly includes a first and a second planar inverted-F antennas, which are symmetric with each other and disposed on the first side of the substrate. The first planar inverted-F antenna includes a first radiation portion and a first ground portion. The second planar inverted-F antenna includes a second radiation portion and a second ground portion. The isolation metal sheet is coupled between the first ground portion and the second ground portion. The second antenna assembly includes a third and a fourth antennas, which are coupled to the first and the second ground portions, respectively, and are symmetric with each other and are disposed on the second side of the substrate. The first and the second antenna assemblies are operated at a first and a second frequencies, respectively.

Abstract: A method and apparatus for performing adaptive input current control in an electronic device are provided, where the method may include the steps of: before limiting an input current of a regulator of the electronic device to a target current value, monitoring the input current of the regulator according to a reference current, and decreasing the reference current, to make the reference current change starting from one of a plurality of predetermined reference current values, wherein the input current is obtained from a power source; detecting an input voltage of the regulator to generate a detection signal, to selectively trigger limiting output power of the regulator; and at a time point when the reference current becomes smaller than the input current, limiting the input current of the regulator to the target current value with a latest reference current value of the reference current being utilized as the target current value.

Abstract: A dual-band antenna disposed on the both sides of a substrate, including: a substrate, a first radiator and a second radiator. The substrate includes a first surface and a second surface; a feeding point is disposed at the edge of the first surface which may have a penetration hole electrically connected the first surface to the second surface. The first radiator extends from the first direction of the feeding point to the edge of the substrate, bend at the first corner, continues to extend toward the edge of the substrate, bends again at the second corner and then extend toward the third corner along the edge of the substrate. The second radiator straightly extends toward the second direction of the feeding point and the second direction's projection on the first surface is vertical to the first direction.

Abstract: A dual-band antenna includes a substrate, a first antenna assembly, an isolation metal sheet, and a second antenna assembly. The first antenna assembly includes a first and a second planar inverted-F antennas, which are symmetric with each other and disposed on the first side of the substrate. The first planar inverted-F antenna includes a first radiation portion and a first ground portion. The second planar inverted-F antenna includes a second radiation portion and a second ground portion. The isolation metal sheet is coupled between the first ground portion and the second ground portion. The second antenna assembly includes a third and a fourth antennas, which are coupled to the first and the second ground portions, respectively, and are symmetric with each other and are disposed on the second side of the substrate. The first and the second antenna assemblies are operated at a first and a second frequencies, respectively.

Abstract: A charger circuit for use in controlling charge of a battery pack, which includes a charge control switch and a control unit. The charger circuit has at least one power output terminal and one connection terminal for coupling the battery pack. The charge control switch is arranged to selectively provide a power from a power source to the battery pack through the power output terminal. The control unit is coupled to the charge control switch and the connection terminal, and determines whether to turn off the charge control switch according to a signal based on the connection terminal, wherein the signal based on the connection terminal indicates at least one of an over-voltage condition and an over-temperature condition.

Abstract: An antenna is provided. The antenna includes a feed-in terminal; a radiating portion extended from the feed-in terminal along a first direction to form a first hook portion; a connecting conductor extended from the feed-in terminal to a ground terminal along a second direction opposite to the first direction; and a ground portion extended from the ground terminal and having a cable grounding area, wherein the ground portion and the connecting conductor form a second hook portion opposite to the first hook portion; the cable grounding area has a longitudinal center line; and the first direction and the longitudinal center line form therebetween a specific angle ranging from 49-59 degrees.

Abstract: The disclosure is related to a planar printed antenna and a system thereof. The antenna is characterized in that a signal feeding direction is essentially the same as the extended direction of antenna radiation member. For a layout space, the antenna is suitably applied to a product with limited space. The direction of feeding signals fed to the antenna is essentially the same as the extended direction of the radiation member of the antenna. Therefore, the signal loss can be reduced. Structurally, the planar printed antenna has a radiation member and a connection member. The connection member includes at least one transition portion. A feeding point is formed at a joining member between the radiation member and the connection member. In addition to the structural feature of the antenna, the feeding point and the grounding point are at different planar sides.

Abstract: The disclosure is related to an antenna device with continuous bending structure using the antenna. The radiation body of the antenna device includes a main region having at least three L-type continuous bending structures, and a ground region having at least one L-type bending structure. Two adjacent sides of the planar structure of the antenna device render an aspect ratio of approximately one to one. A signal feeding point and a signal grounding point are formed upon the main region. The two points are connected over a wire for forming a signal-feeding direction. According to a demand, the aspect of the present invention allows for modifying the signaling direction of the antenna by adjusting the mounting angle in an electronic device so as to modify the direction of radiation field intensity of the electronic device.

Abstract: A method of manufacturing an antenna is provided. The method includes steps of providing a substrate including a feed-in terminal and a ground terminal; and forming a ground conductor structure on the substrate extended from the feed-in terminal to the ground terminal and including a first conductor extended along a first direction, a second conductor extended from the first conductor along a second direction, a third conductor extended from the second conductor along a third direction, and a fourth conductor extended from the third conductor along a fourth direction, wherein a first obtuse angle is formed between the first direction and the second direction, a second obtuse angle is formed between the second direction and the third direction, and an acute angle is formed between the third direction and the fourth direction.

Abstract: A dual-band monopole antenna includes a ground portion, a first radiator, a second radiator and a feed portion. The first radiator includes a first extension portion extended towards the ground portion, a second extension portion extended and perpendicular to the first extension portion, a third extension portion extended and perpendicular to the second extension portion, and a fourth extension portion extended and perpendicular to the third extension portion. The second radiator includes a fifth extension portion extended and parallel to the second extension portion, and a sixth extension portion parallel to the first extension portion. The feed portion has one end connected to the first extension portion and the other end corresponds to the ground portion.

Abstract: The disclosure is related to an antenna device with continuous bending structure using the antenna. The radiation body of the antenna device includes a main region having at least three L-type continuous bending structures, and a ground region having at least one L-type bending structure. Two adjacent sides of the planar structure of the antenna device render an aspect ratio of approximately one to one. A signal feeding point and a signal grounding point are formed upon the main region. The two points are connected over a wire for forming a signal-feeding direction. According to a demand, the aspect of the present invention allows for modifying the signaling direction of the antenna by adjusting the mounting angle in an electronic device so as to modify the direction of radiation field intensity of the electronic device.