An alarm clock is provided that has a housing, one or more charging ports, an audio transducer, an alarm control device, a display, and a controller. The charging ports are mounted in a surface of the housing and provide power from a power supply to an external device. The controller receives input signals from the alarm control device and sends output signals to the audio transducer and the display. When the controller receives input signals from the alarm control device, it responds by displaying and setting a desired alarm time on the display, and by arming an alarm function. While the alarm function is armed, if a current time matches the alarm time, the controller causes the audio transducer to emit an alarm sound. When the controller receives another input signal from the alarm control device, it responds by taking the alarm time off the display, disarming the alarm function, and, if the alarm sound is being emitted, quieting the alarm sound. The alarm function remains disarmed until the controller receives yet another input signal from the alarm control device, and in response rearms the alarm function.

A device capable of being used for a long time is achieved. A power supply, a connection method of a power supply, or a connecting member, for easy attachment and detachment and non-detachment when in use, is provided. A power supply, a connection method of a power supply, or a connecting member for easy replacement is provided. A highly designed power supply is provided. Power from a battery is supplied to an electronic device through a connecting member including a pipe, a spring, and a pair of pivots. The pair of pivots are electrically insulated from each other, and electrically connected to any one of a pair of electrodes of the battery. The electronic device into which the pair of pivots are inserted includes a pair of bearings capable of receiving power.

An embodiment of an electronic timepiece includes a cylindrical exterior case, a bezel and a windshield member. In the exterior case, a circuit board is housed. The bezel is formed of a metal material to be ring-shaped, includes an inward flange part that projects from an inner side surface toward a center of the ring-shaped bezel, is arranged on an outer upper side of the exterior case and is electrically connected with the circuit board. The windshield member is formed of a transparent dielectric substance, arranged in the bezel and supported by the inward flange part. The bezel is configured to resonate with a radio wave having a desired frequency by adjustment of at least one of (i) a relative permittivity of the dielectric substance and (ii) an area of an overlap region where the inward flange part and the windshield member overlap each other.

A wearable device assembly has a housing supporting a controller, display and indicator system thereon. The controller has at least one sensor wherein activity of a user wearing the device is detected. The controller selectively illuminates the indicator system to indicate a level of activity of the user.

A wearable device includes a multi-use circuit that includes a terminal provided so as be able to be close to a subject and that is capable of being used for both (i) a determination function that determines whether the wearable device is being worn on the subject and (ii) a predetermined function other than the determination function, and a processor configured to execute the determination function.

A wearable device includes a multi-use circuit that includes a terminal provided so as be able to be close to a subject and that is capable of being used for both (i) a determination function that determines whether the wearable device is being worn on the subject and (ii) a predetermined function other than the determination function, and a processor configured to execute the determination function.

An electronic device, such as a watch, has a crown assembly having a shaft and a user-rotatable crown. The user-rotatable crown may include a conductive cap that is mechanically and electrically coupled to the shaft and functions as an electrode. The conductive cap may be coupled to the shaft using solder or another conductive attachment mechanism. The shaft may electrically couple the conductive cap to a processing unit of the electronic device. One or more additional electrodes may be positioned on the exterior surface of the electronic device. The conductive cap is operable to be contacted by a finger of a user of the electronic device while another electrode is positioned against skin of the user. The processing unit of the electronic device is operable to determine a biological parameter, such as an electrocardiogram, of the user based on voltages at the electrodes.

An electronic device, such as a watch, has a crown assembly having a shaft and a user-rotatable crown. The user-rotatable crown may include a conductive cap that is mechanically and electrically coupled to the shaft and functions as an electrode. The conductive cap may be coupled to the shaft using solder or another conductive attachment mechanism. The shaft may electrically couple the conductive cap to a processing unit of the electronic device. One or more additional electrodes may be positioned on the exterior surface of the electronic device. The conductive cap is operable to be contacted by a finger of a user of the electronic device while another electrode is positioned against skin of the user. The processing unit of the electronic device is operable to determine a biological parameter, such as an electrocardiogram, of the user based on voltages at the electrodes.

An information terminal device according to the present invention is configured to be compact, and realizes high-level functionality and/or multi-functionality by drawing out a second input/output portion from the rear side of a first input/output portion, in a wristwatch type information terminal device. In addition, the first input/output portion is configured to include a plate-shaped first input/output portion body, first guide members that are provided on both sides of the first input/output portion body, as pairs, and are also provided as front and back (top and bottom) pairs, and folding members that are provided on the base end side so as to increase/decrease the distance between the first guide members. The second input/output portion is configured to include a plate-shaped second input/output portion body and second guide members that are provided on both sides thereof, as a pair.

An apparatus may include a power rail, a subassembly, an additional subassembly, and an interface coupling the subassembly to the additional subassembly. The subassembly may include a load, an energy-storing component, a charger having an output coupled to the energy-storing component, and a reverse-current limiter having a first terminal coupled to the energy-storing component. The additional subassembly may include an additional energy-storing component, an additional charger having an output coupled to the additional energy-storing component, and an additional reverse-current limiter having a first terminal coupled to the additional energy-storing component. The power rail may cross the interface and may couple the load, an input of the charger, a second terminal of the reverse-current limiter, an input of the additional charger, and a second terminal of the additional reverse-current limiter. Various other apparatuses, systems, and methods are also disclosed.