Abstract: A breathing guidance system having an active biofeedback mechanism is provided. The breathing guidance system includes a physiological status detection device, a processing device, a breathing indication device and an instant breathing detection module. The physiological status detection device detects at least one of instant physiological status information of the user. The processing device generates an ideal breathing waveform according to the instant physiological status information to further generate a control signal. The breathing indication device generates a breathing indication signal according to the control signal. The instant breathing detection module detects instant breathing status information of the user. The processing device further generates an instant breathing waveform according to the instant breathing status information to compare the ideal breathing waveform and the instant breathing waveform to generate a breathing condition indication signal.

Abstract: A near field communication and wireless charging device includes a coil, a tuning module, a near field communication module, a wireless charging module, and a power storage device. The coil is configured to receive electromagnetic waves. The tuning module is electrically connected to the coil. The near field communication module includes an attenuator and a near field communication control circuit. The attenuator is configured to attenuate the energy of electromagnetic waves transmitted from the tuning module. The near field communication control circuit is electrically connected to the attenuator. The power storage device is electrically connected to the wireless charging module. Electromagnetic waves are magnetically coupling to the coil, and the coil transmits signals of the electromagnetic waves to the near field communication module through the tuning module, or transmits the energy of the electromagnetic waves to the power storage device through the tuning module and the wireless charging module.

Abstract: A mobile device includes a ground plane, a first radiation branch, and a second radiation branch. The second radiation branch is coupled to the ground plane, and is disposed adjacent to the first radiation branch. An antenna structure is formed by the first radiation branch and the second radiation branch. The first radiation branch is fed from a signal source. The second radiation branch is excited by the first radiation branch through coupling therebetween.

Abstract: A handheld device is provided, wherein the handheld device comprises a housing, a circuit board, a planar antenna and a switch. The housing comprising an outer surface is configured to define a receiving space. The circuit board is disposed in the receiving space. The planar antenna comprises a metal layer, wherein the metal layer comprising a first connecting point and a second connecting point is patterned on the outer surface. The switch comprising a first electrode and a second electrode is configured to control the electrical connection between the first connecting point and the second connecting point, wherein the first electrode and the second electrode are electrically connected between the first connecting point and the second connecting point. The planar antenna operates at a first central band when the switch is turned on, and operates at a second central band when the switch is turned off.

Abstract: A communication method used in a handheld communication device is provided. The communication method comprises the steps outlined below. Whether a voice communication is established is determined. When the voice communication is established, a sensing element is activated to determine whether the handheld communication device is operated in a hand mode. When the handheld communication device is not operated in the hand mode, an antenna module of the handheld communication device would be operated in a first operation frequency band to perform the voice communication. When the handheld communication device is operated in the hand mode, the antenna module of the handheld communication device would be operated in a second operation frequency band to perform the voice communication, in which the second operation frequency band is higher than the first operation frequency band. A handheld communication device is disclosed herein as well.

Abstract: A wireless charging receiving device includes a body, a metal housing, a receiving coil, and a power storage device. The metal housing is coupled to the body to form an accommodating space. The metal housing includes an aperture and at least one slit. The slit interconnects the aperture and the edge of the metal housing. The receiving coil is disposed between the metal housing and the body. The receiving coil defines a through hole by a looped configuration, and the through hole overlaps at least part of the aperture of the metal housing. The power storage device is disposed within the accommodating space and electrically connected to the receiving coil. Electromagnetic waves are able to pass through the aperture of the metal housing and are magnetically coupled to the receiving coil, such that the receiving coil transfers the energy of the electromagnetic waves to the power storage device.

Abstract: A handheld device is provided, wherein the handheld device comprises a housing, a circuit board, a planar antenna and a switch. The housing comprising an outer surface is configured to define a receiving space. The circuit board is disposed in the receiving space. The planar antenna comprises a metal layer, wherein the metal layer comprising a first connecting point and a second connecting point is patterned on the outer surface. The switch comprising a first electrode and a second electrode is configured to control the electrical connection between the first connecting point and the second connecting point, wherein the first electrode and the second electrode are electrically connected between the first connecting point and the second connecting point. The planar antenna operates at a first central band when the switch is turned on, and operates at a second central band when the switch is turned off.

Abstract: A multi-feed antenna is disclosed. The multi-feed antenna includes a first feed terminal, a second feed terminal, a first ground terminal, a second ground terminal, a radiator and a control circuit. The radiator is coupled to the first feed terminal, the second feed terminal, the first ground terminal and the second ground terminal. The control circuit is coupled to the first feed terminal and the second feed terminal and used for switching a radio frequency (RF) signal between the first feed terminal to the first ground terminal and the second feed terminal to the second ground terminal.

Abstract: A mobile device includes an antenna structure, a signal source, and an IPMC (Ionic Polymer Metal Composite). The signal source is configured to excite the antenna structure. The IPMC is configured as a flexible actuator to adjust a resonant length of the antenna structure in such a manner that the antenna structure is capable of operating in multiple bands.

Abstract: A handheld device is provided, wherein the handheld device comprises a housing, a circuit board, a planar antenna and a switch. The housing comprising an outer surface is configured to define a receiving space. The circuit board is disposed in the receiving space. The planar antenna comprises a metal layer, wherein the metal layer comprising a first connecting point and a second connecting point is patterned on the outer surface. The switch comprising a first electrode and a second electrode is configured to control the electrical connection between the first connecting point and the second connecting point, wherein the first electrode and the second electrode are electrically connected between the first connecting point and the second connecting point. The planar antenna operates at a first central band when the switch is turned on, and operates at a second central band when the switch is turned off.

Abstract: In a touch panel and display panel structure or an integrated touch display panel structure, an antenna pattern is disposed on a touch module, a display module or an integrated touch display module for an increased distance between the antenna pattern and electronic components below the structure, reducing electromagnetic effect caused by the electronic components and improving the antenna performance. The antenna pattern is arranged at two opposite edges of a top surface of the touch and display module or the integrated touch display module, and also at side surfaces of a housing non-coplanar to the top surface such that the antenna pattern is located outside the displaying area of the display module. Maintaining the effective antenna area and enhancing the working bandwidth of the antenna, the side width of surface of the touch panel and display panel structure or the integrated touch display panel structure is significantly reduced.

Abstract: A handheld device and a planar antenna thereof are provided. The planar antenna comprises a radiator having a feeding point, a first short point and a second short point. The feeding point is coupled to a circuit board of the handheld device so that the handheld device transmits and receives a RF (radio frequency) signal through the radiator. The first short point is coupled to a ground of the circuit board so as to be grounded. A control element is disposed on the handheld device or the planar antenna in order to control the second short point to be selectively electrically coupled to the ground so that the planar antenna can operate at two different central frequencies. Furthermore, the planar antenna can operate at multiple central frequencies by changing a position of the second short point contacted to the radiator.

Abstract: A portable communication device and an adjustable antenna thereof are disclosed herein. The portable communication device includes a substrate, the adjustable antenna and a control circuit. The adjustable antenna includes an antenna body, an adjusting element, a feeding terminal and a ground terminal. The antenna body has multiple conductive portions and is disposed above the substrate. The adjusting element is coupled between the conductive portions. The feeding terminal and the ground terminal extend from the antenna body and are coupled to the substrate. The control circuit feeds a first control signal and a second control signal respectively through the feeding terminal and the ground terminal to the adjusting element, so as to adjust an electrical length of the adjustable antenna.

Abstract: A handheld device and a planar antenna thereof are provided. The planar antenna comprises a radiator, a screening element and a switch. The screening element is configured to make the planar antenna operating in a first high-frequency (HF) current path and a first low-frequency (LF) current path, and the switch is configured to make the planar antenna operating in a second HF current path and a second LF current path. The planar antenna operates at a first HF central frequency corresponding to the first HF current path and a first LF central frequency corresponding to the first LF current path when the switch is turned off, and operates at a second HF central frequency corresponding to the second HF current path and a second LF central frequency corresponding to the second LF current path when the switch is turned on.

Abstract: A housing, a handheld device and a manufacturing method of a housing are provided. The housing includes a body, a metal antenna layer, and a conductive element. The body includes a through hole and an appearance surface and an inner surface opposite to the appearance surface. The metal antenna layer is disposed on the appearance surface and covers the through hole, wherein an edge of the metal antenna layer is connected to the appearance surface seamlessly, and a surface of the metal antenna layer is at least partially exposed by the body. The conductive element is disposed in the through hole and directly contacts the metal antenna layer to transmit signals received by the metal antenna layer.

Abstract: A handheld device at least including a functional element, an appearance and a planar antenna is provided. The appearance at least includes a communicating space. In addition, the communicating space passes through the appearance, and the communicating space is a channel for transmitting signals from the functional element, or the communicating space is configured to expose the functional element. The planar antenna is disposed on an external surface of the appearance, and extended to an internal surface of the appearance through the communicating space.

Abstract: A portable communication device and an adjustable antenna thereof are disclosed herein. The portable communication device includes a substrate, the adjustable antenna and a control circuit. The adjustable antenna includes an antenna body, an adjusting element, a feeding terminal and a ground terminal. The antenna body has multiple conductive portions and is disposed above the substrate. The adjusting element is coupled between the conductive portions. The feeding terminal and the ground terminal extend from the antenna body and are coupled to the substrate. The control circuit feeds a first control signal and a second control signal respectively through the feeding terminal and the ground terminal to the adjusting element, so as to adjust an electrical length of the adjustable antenna.

Abstract: A communication method used in a handheld communication device is provided. The communication method comprises the steps outlined below. Whether a voice communication is established is determined. When the voice communication is established, a sensing element is activated to determine whether the handheld communication device is operated in a hand mode. When the handheld communication device is not operated in the hand mode, an antenna module of the handheld communication device would be operated in a first operation frequency band to perform the voice communication. When the handheld communication device is operated in the hand mode, the antenna module of the handheld communication device would be operated in a second operation frequency band to perform the voice communication, in which the second operation frequency band is higher than the first operation frequency band. A handheld communication device is disclosed herein as well.

Abstract: A handheld device and a disposition method of a planar antenna are provided. The handheld device includes an appearance, a system ground plane, and the planar antenna. The appearance includes a via. The system ground plane is disposed inside the appearance. The planar antenna is disposed on the appearance and extended to an inner surface of the appearance through the via so as to be coupled to the system ground plane. Thereby, the performance of the planar antenna is improved.

Abstract: In a touch panel and display panel structure or an integrated touch display panel structure, an antenna pattern is disposed on a touch module, a display module or an integrated touch display module for an increased distance between the antenna pattern and electronic components below the structure, reducing electromagnetic effect caused by the electronic components and improving the antenna performance. The antenna pattern is arranged at two opposite edges of a top surface of the touch and display module or the integrated touch display module, and also at side surfaces of a housing non-coplanar to the top surface such that the antenna pattern is located outside the displaying area of the display module. Maintaining the effective antenna area and enhancing the working bandwidth of the antenna, the side width of surface of the touch panel and display panel structure or the integrated touch display panel structure is significantly reduced.