Method and circuit for switching a wristwatch from a first power mode to a second power mode
DCFirst Claim
1. 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.
4 Assignments
Litigations
1 Petition
Accused Products
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.
22 Citations
15 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A wristwatch which can be operated in a plurality of power modes including a first power mode and a second power mode, comprising:
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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. - View Dependent Claims (15)
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Specification