Power management scheme for portable data collection devices utilizing location and position sensors
First Claim
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1. A device, comprising:
- a main body having a front and a back;
a touch screen on the front of the main body;
an accelerometer within the main body for detecting movement and an orientation of the device; and
a processor within the main body configured for;
determining if the device is front down or back down;
if the device is front down, placing the device in a first sleep state and then a second sleep state based on a time elapsed without detecting movement of the device or receiving input since the device was placed in the first sleep state; and
if the device is back down, placing the device in the second sleep state and then a third sleep state based on a time elapsed without detecting movement of the device or receiving input since the device was placed in the second sleep state.
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Abstract
A data collection device (DCD) is placed in a first low power mode after the DCD has been in a first predetermined position, and placed in a second low power mode after a first predetermined period of time. In another embodiment the DCD includes a wireless telephone, and a proximity sensor which detects when the DCD is close to a user'"'"'s face, wherein the telephone is automatically put in a handset mode when the DCD is close to a user'"'"'s face, and automatically put in a speakerphone mode when the DCD is not close to a user'"'"'s face.
28 Citations
20 Claims
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1. A device, comprising:
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a main body having a front and a back; a touch screen on the front of the main body; an accelerometer within the main body for detecting movement and an orientation of the device; and a processor within the main body configured for; determining if the device is front down or back down; if the device is front down, placing the device in a first sleep state and then a second sleep state based on a time elapsed without detecting movement of the device or receiving input since the device was placed in the first sleep state; and if the device is back down, placing the device in the second sleep state and then a third sleep state based on a time elapsed without detecting movement of the device or receiving input since the device was placed in the second sleep state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device, comprising:
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a main body having a front and a back; a touch screen on the front of the main body; a proximity sensor within the main body for detecting the device'"'"'s proximity to other objects; an accelerometer within the main body for detecting movement and an orientation of the device; and a processor within the main body configured for; determining if the device is front down, back down, or neither front down nor back down; if the device is front down, placing the device in a first sleep state and then a second sleep state based on a time elapsed without detecting movement of the device or receiving input since the device was placed in the first sleep state; if the device is back down, placing the device in the second sleep state and then a third sleep state based on a time elapsed without detecting movement of the device or receiving input since the device was placed in the second sleep state; and if the device is neither front down nor back down, placing the device in the third sleep state and then a fourth sleep state based on a time elapsed without detecting movement of the device or receiving input since the device was placed in the third sleep state. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A device, comprising:
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a main body having a front and a back; a touch screen on the front of the main body; a keypad on the front of the main body; an accelerometer within the main body for detecting movement and an orientation of the device; and a processor within the main body configured for; determining if the device is front down or back down; if the device is front down, placing the device in a first sleep state and then a second sleep state based on a time elapsed without detecting movement of the device or receiving input since the device was placed in the first sleep state; and if the device is back down, placing the device in the second sleep state and then a third sleep state based on a time elapsed without detecting movement of the device or receiving input since the device was placed in the second sleep state. - View Dependent Claims (18, 19, 20)
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Specification