BATTERY MONITOR
First Claim
Patent Images
1. A host Radio Frequency Identification (RFID) device, comprising:
- a subsystem for estimating power consumption thereof, the subsystem comprising;
a mechanism for tracking at least an amount of time the RFID device is in an active state; and
a mechanism for generating a value representing at least the amount of time the RFID device is in the active state based on the tracking; and
a mechanism for sending the value or derivative thereof to a remote device.
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Abstract
Circuit and methods for tracking the total amount of time that a host device has spent in its high power “activated” state (and optionally idle and hibernate states) and thereby can estimate the total power consumed by the host device. A value representing this time may be send to a remote device to, for example, accurately determine how much of the energy has been consumed by the host device and how much time is left and/or how many operations can be performed before the host device'"'"'s battery is exhausted.
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Citations
50 Claims
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1. A host Radio Frequency Identification (RFID) device, comprising:
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a subsystem for estimating power consumption thereof, the subsystem comprising;
a mechanism for tracking at least an amount of time the RFID device is in an active state; and
a mechanism for generating a value representing at least the amount of time the RFID device is in the active state based on the tracking; and
a mechanism for sending the value or derivative thereof to a remote device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A host Radio Frequency Identification (RFID) device having a subsystem for estimating power consumption thereof, the subsystem comprising:
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a mechanism for tracking at least an amount of time the RFID device is in an active state; and
a mechanism for generating a value representing at least the amount of time the RFID device is in the active state based on the tracking.
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29. A method for estimating power consumption, comprising:
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tracking an amount of time a host Radio Frequent Identification (RFID) device is in an active state;
generating a value representing the amount of time the host RFID device is in the active state; and
sending the value to a remote device. - View Dependent Claims (30)
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31. A system for estimating power consumption(a) of a host device, comprising:
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an oscillator for tracking at least an amount of time a host device is in a first state;
a counter receiving output from the oscillator for generating a value representing a power consumption of the host device based on output from the oscillator, wherein the counter operates at different speeds, denpending on the state of the host drive. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A method for estimating power consumption of a host Radio Frequency Identification (RFID) device, comprising:
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generating a first tracking signal at a first frequency when a host RFID device is in a first state;
generating a second tracking signal at a second frequency when the host RFID device is in a good second state different from the first state;
processing the tracking signals for generating a value representing a power consumption of the host RFID device, wherein a derivative of the value is generated for output to a user.
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48. A method for estimating power consumption of a host Radio Frequency Identification (RFID) device, comprising:
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generating a tracking signal at a constant frequency when a host RFID device is in a first or second state;
dividing the frequency of the tracking signal when the host RFID device is in the second state; and
storing a count of the frequency, wherein a derivative of the value is generated for output to a user.
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49. A system for estimating power consumption of a host device, comprising:
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a mechanism for tracking at least an amount of time a host device is in an active state;
a mechanism for generating a value representing at least the amount of time the host device is in the active state based on the tracking; and
a mechanism for sending the value or derivative thereof to a remote device.
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50. A method for estimating power consumption, comprising:
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tracking an amount of time a host device is in an active state;
generating a value representing the amount of time the host device is in the active state;
sending the value to a remote device.
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Specification