A trigonometric function display clock includes a clock face that has a center aligned with a central axis, axial markings aligned with an x-axis and a y-axis, and a secondary circle having a diameter equal to a radius of the axial markings. A first point on the secondary circle is aligned at the center of the central axis, and the secondary circle is configured to be rotatable about the first point. The secondary circle is configured to overlap and align with at least a portion of the axial markings as the secondary circle rotates about the first point.

A trigonometric function display clock includes a clock face that has a center aligned with a central axis, axial markings aligned with an x-axis and a y-axis, and a secondary circle having a diameter equal to a radius of the axial markings. A first point on the secondary circle is aligned at the center of the central axis, and the secondary circle is configured to be rotatable about the first point. The secondary circle is configured to overlap and align with at least a portion of the axial markings as the secondary circle rotates about the first point.

According to various embodiments, a wearable device may be provided. The wearable device may include: a display panel having integrally formed a first display portion and a second display portion; and a driver circuit configured to control the first display portion with a first frequency and to control the second display portion with a second frequency.

A wearable device, and a notification system and a notification method thereof are provided. The wearable device includes a rotatable ring, multiple switches, and a communication module. The wearable device obtains a control signal by rotating the rotatable ring to trigger part of the switches, and transmits a mode signal to an electronic apparatus in response to the control signal. After receiving the mode signal, the electronic apparatus switches to a corresponding mode.

A display system includes a watch having a watch face; and an intelligent display system. The display system includes a display panel, a selectively opaque panel, a memory having programming instructions, and a controller in communication with the display panel and the selectively opaque panel, and the memory. The display system is operable in each of: (a) display mode wherein the display panel is actuated by the controller to display image content, and at least a portion of the selectively opaque panel is opaque; (b) a transparent mode wherein the display panel does not display image content, the selectively opaque panel is substantially transparent, and the watch face is substantially visible; and (c) an augmented reality mode wherein the display panel is actuated by the controller to display image content, and the selectively opaque panel is substantially transparent, the watch face being substantially visible behind the display system.

An electronic apparatus to be worn on a wrist of a user includes a first pulse sensor, a second pulse sensor, and a processor. The second pulse sensor is provided at a different position from the first pulse sensor in a direction from an arm to a fingertip when the user wears the electronic apparatus. The processor determines whether the electronic apparatus is worn on a right wrist or on a left wrist based on a difference between a timing at which the first pulse sensor detects a predetermined pulse and a timing at which the second pulse sensor detects the pulse.

A Dewar device for mechanical and/or functional components of a watch, the device being provided with a bracelet and a casing including an enclosure wherein a case of the watch can be disposed so that a crystal of the case is arranged opposite a crystal of all the elements of the casing defining this enclosure and at least one fastening device fastening the watch case in the enclosure of the casing by keeping it remote from all the elements of the casing defining this enclosure, the Dewar device including a device for actuating at least one push button by rotating a pivoting bezel of the casing.

A wearable electronic device, for example a smart watch, has an optical sensor module disposed near a side of the device meant to face the wearer. The device also includes a wireless charging module. The optical sensor and wireless charging modules are at least partially integrated together via a flexible printed circuit board (FPCB) which is connected to both modules. The wireless charging module surrounds the FPCB of the optical sensor module, thus allowing a reduction in thickness of the wearable device and further allowing simplification in a process of assembly of the device.

A fashionable bracelet operates as a remote car key fob and a clock. The bracelet provides multiple buttons allowing a user to operate the bracelet to control access to the vehicle coupled to the bracelet. The bracelet receives voice commands to operate the vehicle. Moreover, the bracelet incorporates a GPS subsystem for auto-piloting the vehicle to the location of the user. The bracelet further incorporates multiple LEDs to provide operational feedback to the user. The clock can be turned on and off using one of the buttons. The wireless key fob functions and the clock are controlled by a microcontroller disposed within the bracelet. The bracelet includes a battery to provide power to various components of the bracelet. The battery is operatively coupled to a solar panel. The bracelet is conveniently and securely attached to the wrist of the user.

A fashionable bracelet operates as a remote car key fob and a clock. The bracelet provides multiple buttons allowing a user to operate the bracelet to control access to the vehicle coupled to the bracelet. The bracelet receives voice commands to operate the vehicle. Moreover, the bracelet incorporates a GPS subsystem for auto-piloting the vehicle to the location of the user. The bracelet further incorporates multiple LEDs to provide operational feedback to the user. The clock can be turned on and off using one of the buttons. The wireless key fob functions and the clock are controlled by a microcontroller disposed within the bracelet. The bracelet includes a battery to provide power to various components of the bracelet. The battery is operatively coupled to a solar panel. The bracelet is conveniently and securely attached to the wrist of the user.