Method and circuit for switching a wristwatch from a first power mode to a second power mode
AssigneeSlyde Watch SA
InventorsAlex Bezinge, Adrian Mohni, Daniel Pfeifer, Musa Dogan
Life of this patent
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Abstract
An electronic wristwatch operable in two power modes. The wristwatch has an inertial sensor for detecting a gesture on a cover glass of the wristwatch. A touch panel is provided underneath the cover glass for detecting the gesture. Gesture detection by the inertial sensor is combined with gesture detection by the touch panel for triggering a switch from a first power mode to a second power mode.
Claims15
A method combining gesture detection by an inertial sensor and gesture detection with a touch panel for switching a wristwatch from a first power mode to a second power mode, wherein the inertial sensor comprises an accelerometer and a processor and/or other processing means, and wherein the wristwatch comprises a microcontroller controlling a display of indication on a digital matrix display of the wristwatch and a touch controller for interpreting touch signal provided by a touch panel underneath a cover glass and for converting said signals into command signal, the method comprising:
- using the accelerometer of the inertial sensor for generating an acceleration signal used for detecting a gesture on the cover glass of said wristwatch, while the microcontroller and the touch controller are in a sleep power mode;
- using the processor and/or other processing means of the inertial sensor for discriminating between gesture and no gesture based on a direction of said acceleration signal and on a slope or frequency of said acceleration signal as measured by said accelerometer being a three dimensional accelerometer,
- in response to a detection of a gesture by said inertial sensor, waking up the touch controller;
- using the touch controller for detecting a tap gesture on the cover glass with the touch panel;
- waking up the microcontroller in said wristwatch upon detection of a tap gesture by said touch controller,
- using said microcontroller for detecting said gesture and for discriminating between gesture and no gesture based at least on signals from the touch panel.
A wristwatch which can be operated in a plurality of power modes including a first power mode and a second power mode, comprising:
- a display;
- a microcontroller;
- a touch panel underneath a cover glass of said wristwatch for detecting a gesture on said cover glass;
- a touch controller for interpreting touch signal provided by the touch panel and for converting said signals into command signal;
- an inertial sensor comprising an accelerometer and a processor and/or other processing means, said accelerometer being arranged for generating an acceleration signal and the processor and/or other processing means being arranged for discriminating between gesture and no gesture based on a direction of said acceleration signal as measured by said accelerometer being a three dimensional accelerometer, and on a slope or frequency of said acceleration signal, while the microcontroller and the touch controller are in a sleep power mode;
- wherein touch controller is commanded so as to be switched to said second power mode upon gesture detection by said inertial sensor and for detecting a tap gesture on the cover glass with the touch panel;
- and
- wherein the microcontroller is arranged for controlling a display of indication on the display and commanded so as to be switched to said second power mode upon a tap gesture detection by said touch controller and for discriminating between gesture and no gesture based at least on signals from said touch panel.
Dependencies are inferred from the claim text.