# US 10,310,593 B2 · Electronic mobile device

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- Number: US 10,310,593 B2
- Document ID: US10310593B2
- Status: Granted
- Kind: B2
- Application number: 15/560,302
- Filed: 2016-02-24
- Published: 2018-03-01
- Granted: 2019-06-04
- Earliest claimed: 2015-04-01
- Assignees: Koninklijke Philips N.V.
- Applicants: Koninklijke Philips N.V.
- Inventors: Harm Kingma
- Web page: https://patentgrep.com/patent/US10310593B2

## CPC

- G06F 1/3296: by lowering the supply or operating voltage
- G01P 13/00: Indicating or recording presence, absence, or direction, of movement (electric switches H01H; counting moving objects G06M7/00)
- G06F 1/3215: Monitoring of peripheral devices
- G06F 1/3231: Monitoring the presence, absence or movement of users
- G06F 3/0346: with detection of the device orientation or free movement in a three-dimensional [3D] space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
- B26B 19/388: {Sensors; Control}
- G01P 15/18: in two or more dimensions
- G06F 2200/1637: Sensing arrangement for detection of housing movement or orientation, e.g. for controlling scrolling or cursor movement on the display of an handheld computer
- Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G01P: MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT (measuring or recording blood flow A61B5/02, A61B8/06; monitoring speed or deceleration of electrically-propelled vehicles B60L3/00; vehicle lighting systems adapted to indicate speed B60Q1/54; determining position or course in navigation, measuring ground distance in geodesy or surveying G01C; combined measuring devices for measuring two or more variables of movement G01C23/00; measuring velocity of sound G01H; measuring velocity of light G01J7/00; measuring direction or velocity of solid objects by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; measuring speed of nuclear radiation G01T; measuring acceleration of gravity G01V; {measuring or recording the speed of trains B61L23/00; speed indicators incorporated in motor vehicles B60K35/00; measuring frequency or phase G01R; traffic control G08G})
- B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

The invention relates to an electronic mobile device (10; 20) comprising a device mode control unit (5) arranged to switch the mobile device from a first operational mode into a second operational mode. An orientation sensor (18; 28) is configured to measure a current orientation of the mobile device. A processor (6) periodically receives the current orientation from the orientation sensor, periodically stores the received current orientation as a reference orientation, and periodically calculates a differential angle between the current orientation and the stored reference orientation. The device is switched from the first operational mode to the second operational mode if the differential angle is above a predefined angular threshold value. A frequency of said periodically receiving and periodically storing the current orientation as the reference orientation is lower than a frequency of said periodically receiving the current orientation, periodically calculating and periodically comparing the differential angle.

## Claims

### Claim 1

An electronic mobile device comprising:
a device mode control unit configured and arranged to switch the mobile device from a first operational mode into a second operational mode and vice versa;
an orientation sensor configured and arranged to measure a current orientation of the mobile device;
a processor configured and arranged such that, during operation of the mobile device, the processor:
receives the current orientation from the orientation sensor and stores the received current orientation as a reference orientation of the mobile device,
periodically receives the current orientation from the orientation sensor, periodically calculates a differential angle between the current orientation and the stored reference orientation, and periodically compares the differential angle with a predefined angular threshold value, and
instructs the device mode control unit to switch the mobile device from the first operational mode to the second operational mode if the differential angle is above the predefined angular threshold value,
wherein a frequency of said periodically receiving the current orientation, periodically calculating and periodically comparing the differential angle is in a range from 5 to 15 Hz, and in that the processor is configured and arranged such that, during operation of the mobile device, the processor periodically receives the current orientation from the orientation sensor and periodically stores the received current orientation as the reference orientation with a frequency in a range from 0.25 to 0.5 Hz.

### Claim 2 (depends on 1)

Electronic mobile device according to claim 1, wherein the first operational mode is a low-power mode and the second operational mode is a high-power mode.

### Claim 3 (depends on 2)

Electronic mobile device according to claim 2, wherein the processor is configured and arranged such that, in the low-power mode of the mobile device, the processor distinguishes between a sleep mode and a travel mode, wherein, if the mobile device is switched from the sleep mode to the high-power mode a predefined number of times during a predefined time period without registering any user interaction, the processor instructs the device mode control unit to switch the mobile device into the travel mode.

### Claim 4 (depends on 3)

Electronic mobile device according to claim 3, wherein, in the sleep mode, the predefined angular threshold value is smaller than in the travel mode.

### Claim 5 (depends on 4)

Electronic mobile device according to claim 4, wherein, in the sleep mode, the predefined angular threshold value is in a range of 10 to 15 degrees and, in the travel mode, the predefined angular threshold value is in a range of 60 to 65 degrees.

### Claim 6 (depends on 1)

Electronic mobile device according to claim 1, wherein the predefined angular threshold value is in a range from 10 to 15 degrees or in a range from 60 to 65 degrees.

### Claim 7 (depends on 1)

Electronic mobile device according to claim 1, wherein the processor is configured and arranged such that, during operation of the mobile device, the processor stores the received current orientation as the reference orientation when the mobile device is switched from the first operational mode to the second operational mode.

### Claim 8 (depends on 3)

Electronic mobile device according to claim 3, wherein the processor instructs the device mode control unit to switch the mobile device from the travel mode into the sleep mode if the mobile device has been in travel mode for a predefined maximum travel time.

### Claim 9 (depends on 1)

Electronic mobile device according to claim 1, wherein the orientation sensor comprises a 3-axis accelerometer.

### Claim 10 (depends on 1)

Electronic mobile device according to claim 1, wherein the orientation sensor comprises a 3-axis magnetometer.

### Claim 11 (depends on 1)

Electronic mobile device according to claim 1, wherein the orientation sensor comprises a 3-axis gyroscope configured and arranged to measure an angular rate along 3 axes.

### Claim 12 (depends on 11)

Electronic mobile device according to claim 11, wherein the processor is configured and arranged such that, during operation of the mobile device, the processor switches a sample rate of the orientation sensor between a relatively low sample rate and a relatively high sample rate, wherein the processor switches the sample rate to the relatively low sample rate if a measured angular rate on at least one of the 3 axes is lower than a minimum angular rate threshold, and wherein the processor switches the sample rate to the relatively high sample rate if the measured angular rate on at least one of the 3 axes is higher than the minimum angular rate threshold.

### Claim 13 (depends on 1)

Electronic mobile device according to claim 1, wherein the mobile device is a personal care device, a mobile communication device, a mobile media player, a phablet or a mobile computing device.

### Claim 14

Method of switching an electronic mobile device from a first operational mode into a second operational mode and vice versa, the method comprising:
receiving a current orientation of the mobile device from an orientation sensor of the mobile device and storing the received current orientation as a reference orientation of the mobile device;
periodically receiving the current orientation from the orientation sensor, periodically calculating a differential angle between the current orientation and the stored reference orientation, and periodically comparing the differential angle with a predefined angular threshold value; and
switching the mobile device from the first operational mode to the second operational mode if the differential angle is above the predefined angular threshold value,
wherein a frequency of said periodically receiving the current orientation, periodically calculating and periodically comparing the differential angle is in a range from 5 to 15 Hz, and in that the method comprises periodically receiving the current orientation of the mobile device from the orientation sensor and periodically storing the current orientation as the reference orientation with a frequency in a range from 0.25 to 0.5 Hz.

### Claim 15 (depends on 14)

A computer program product comprising instructions for causing a processor system to perform a method according to claim 14.