An energy harvester (100) includes: an inner band (110); an outer band (120) arranged to surround the inner band (110), wherein the inner band (110) is coupled to the outer band (120) at a fixed end (20) and the inner band (110) is spaced from the outer band (120) at a free end (30); and an energy generator (150) arranged to generate electric energy through relative movement between the inner band (110) and the outer band (120) at the free end (30). Also disclosed is a wearable device (10) including: a wearable strap formed by the inner band (110) and the outer band (120) of the energy harvester (100), and a mass (130) arranged to receive at least a portion of the wearable device (10).

A watch-type mobile terminal comprises: a main body having a display unit mounted on the front side thereof; a band connected to the main body and wound around a wrist of a user; a battery mounted in the main body; and a wireless charging coil which is positioned in at least one of a side surface and the front surface of the main body and the band and has electric current flow according to a change in a surrounding magnetic field to charge the battery. The watch-type mobile terminal can be charged on the wrist of the user, without the need to be separated from the wrist, and can improve the charging efficiency by minimizing an electromagnetic wave which is influenced by the human body, since the watch-type mobile terminal is at a certain distance away from the wrist.

A watch-type mobile terminal comprises: a main body having a display unit mounted on the front side thereof; a band connected to the main body and wound around a wrist of a user; a battery mounted in the main body; and a wireless charging coil which is positioned in at least one of a side surface and the front surface of the main body and the band and has electric current flow according to a change in a surrounding magnetic field to charge the battery. The watch-type mobile terminal can be charged on the wrist of the user, without the need to be separated from the wrist, and can improve the charging efficiency by minimizing an electromagnetic wave which is influenced by the human body, since the watch-type mobile terminal is at a certain distance away from the wrist.

A method and an apparatus for setting a sports mode are provided. Two metal endpoints on an outer surface of an intelligent device are respectively used as an output end and a receive end of signals. A signal sent by the output end is compared with a signal received by the receive end to determine whether the intelligent device currently meets a preset condition. First sports characteristic data detected by a sports sensing apparatus is obtained to determine whether the first sports characteristic data matches preset sports characteristic data corresponding to a swimming mode. When two determining results are both “yes”, it can be determined that the intelligent device meets a setting condition of the swimming mode.

A testability method (500) for testing the operation of a thermoelectric element (110) of a thermoelectric watch (100) including the thermoelectric element (110), a power circuit supplied by primary storage elements (101) and secondary storage elements (102) so as to move at least one moveable element (190) or display information on an electro-optical display device. The testability method (500) includes steps of applying a heat source (540) to the thermoelectric element (110) so as to make it possible to electrically charge (550) or recharge (550) the secondary storage elements (102) in order to move at least one moveable element (190) or display information on an electro-optical display device, and thus check the functionality of the thermoelectric element (110).

An electronic timepiece includes a dial, an indicating hand shaft passing through the dial and to which an hour hand is attached, a planar antenna overlapping a 12-o'clock line, a winding stem overlapping a 3-o'clock line, a battery disposed in a region bordered by a 9-o'clock to 3-o'clock line and including the 6-o'clock position on the dial, and a first motor driving a second hand, a second motor driving a minute hand, and a third motor driving the hour hand. The planar antenna, the winding stem, the battery, the first motor, the second motor, and the third motor do not overlap one another in a plan view, and one of the first, second, and third motor is disposed between the planar antenna and the winding stem.

An electronic timepiece includes a dial, an indicating hand shaft passing through the dial and to which an hour hand is attached, a planar antenna overlapping a 12-o'clock line, a winding stem overlapping a 3-o'clock line, a battery disposed in a region bordered by a 9-o'clock to 3-o'clock line and including the 6-o'clock position on the dial, and a first motor driving a second hand, a second motor driving a minute hand, and a third motor driving the hour hand. The planar antenna, the winding stem, the battery, the first motor, the second motor, and the third motor do not overlap one another in a plan view, and one of the first, second, and third motor is disposed between the planar antenna and the winding stem.

Devices for wireless charging with metal housings. The device comprises a wireless power receiving coil and an associated coil core, wherein the coil core defines a recess and at least a portion of the wireless power receiving coil is disposed in the recess; and a housing comprising one or more metal portions, wherein the housing is configured to receive at least a portion of the wireless power receiving coil and the associated coil core in an opening defined by the one or more metal portions. Alternatively, the device comprises a wireless power receiving coil and an associated coil core; a housing comprising one or more metal portions; and an alignment feature configured to interact with a magnet of a wireless charger to align the device with the wireless charger, wherein the alignment feature comprises a plurality of metal elements that are electrically insulated from each other.

A musical or striking mechanism (1) for a timepiece or musical box, includes an energy source (6) delivering a mechanical torque and device for transmitting mechanical torque from the energy source to a wheel set for generating music or a striking wheel set (4). The mechanism also includes a wheel set governor (2) configured to regulate, around a reference speed value, the pivoting speed of the wheel set about a pivot axis, and including a break for braking the wheel set configured to return the pivoting speed thereof to the reference speed. The wheel set governor includes a system having an electric generator (16) whereof a rotor is mechanically connected to the energy source delivering the mechanical torque, and an electronic circuit for regulating the rotation speed of the generator.

One embodiment provides a method, including: detecting, at a wireless charger integrated into an electronic device, a connection of a wearable accessory device, wherein the wireless charger is positioned proximate to a probable user contact position; and transmitting, using the wireless charger and during a period when the connection is established, a charge to the wearable accessory device; wherein the wearable accessory device is worn by a user during the connection. Other aspects are described and claimed.