# US 2019/0356148 A1 · Information Handling System with Sensor Activated Battery Charge Level Indicator

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- Number: US 2019/0356148 A1
- Document ID: US20190356148A1
- Status: Published application
- Kind: A1
- Application number: 15/983,018
- Filed: 2018-05-17
- Published: 2019-11-21
- Earliest claimed: 2018-05-17
- Assignees: Dell Products L.P.
- Applicants: Dell Products, LP
- Inventors: Geroncio O. Tan; Danilo O. Tan; Timothy C. Shaw; James T. Gillon
- Web page: https://patentgrep.com/patent/US20190356148A1

## CPC

- H02J 7/82: Control of state of charge [SOC]
- G01R 31/3646: {for indicating electrical conditions or variables, e.g. visual or audible indicators}
- G06F 1/1694: {the I/O peripheral being a single or a set of motion sensors for pointer control or gesture input obtained by sensing movements of the portable computer}
- G06F 1/3215: Monitoring of peripheral devices
- G06F 1/3228: Monitoring task completion, e.g. by use of idle timers, stop commands or wait commands
- G06F 1/325: {Power saving in peripheral device}
- G06F 1/3287: by switching off individual functional units in the computer system
- G06F 3/017: {Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883)}
- G06F 2200/1636: Sensing arrangement for detection of a tap gesture on the housing
- H02J 7/02: for charging batteries from AC mains by converters
- H02J 2105/44: Portable electronic devices
- Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management
- Y02D 30/50: in wire-line communication networks, e.g. low power modes or reduced link rate
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- 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

An information handling system includes an motion sensor, an embedded controller, and a battery charge indicator. The motion sensor detects a battery charge request, and provides a trigger signal in response to the battery charge request being detected. The embedded controller receives the trigger signal from the motion sensor, and requests a relative state of charge of a battery in response to the trigger signal. The embedded controller then receives the relative state of charge of the battery, and provides a relative state of charge indication signal. The battery charge indicator receives the relative state of charge indication signal, and outputs an indication of the relative state of charge of the battery based on relative state of charge indication signal.

## Claims

### Claim 1

An information handling system comprising:
a motion sensor to detect a predefined motion pattern, and to provide a trigger signal as a battery charge request in response to predefined motion pattern being detected;
an embedded controller to communicate with the motion sensor, the embedded controller to receive the trigger signal from the motion sensor, to request a relative state of charge of a battery in response to the trigger signal, to receive the relative state of charge of the battery, and to provide a relative state of charge indication signal; and
a battery charge indicator to communicate with the embedded controller, the battery charge indicator to receive the relative state of charge indication signal, and to output an indication of the relative state of charge of the battery based on relative state of charge indication signal.

### Claim 2 (depends on 1)

The information handling system of claim 1, further comprising:
a battery management unit to communicate with the embedded controller, the battery management unit to receive the request for the relative state of charge of the battery from the embedded controller, to read the relative state of charge of the battery, and to provide the relative state of charge of the battery to the embedded controller.

### Claim 3 (depends on 1)

The information handling system of claim 1, wherein the predefined motion is a double tap movement of the information handling system in a single direction.

### Claim 4 (depends on 3)

The information handling system of claim 3, the motion sensor further to detect that taps of the double tap movement occur within a specific interval of time.

### Claim 5 (depends on 3)

The information handling system of claim 3, the motion sensor further to measure a time domain waveform of detected movement of the information handling system, and to perform a Fast Fourier Transform conversion of the time domain waveform to verify that a movement is the double tap movement.

### Claim 6 (depends on 1)

The information handling system of claim 1, wherein the motion sensor remains powered on while remaining components of the information handling system are powered off

### Claim 7 (depends on 1)

The information handling system of claim 1, wherein if the embedded controller is powered off, the embedded controller wakes up in response to the relative state of charge request being received.

### Claim 8

A method comprising:
detecting, by a motion sensor of an information handling system, a predefined motion pattern;
providing a trigger signal as a battery charge request in response to the predefined motion being detected;
requesting, by an embedded controller of the information handling system, a relative state of charge of a battery in response to the trigger signal;
receiving the relative state of charge of the battery;
providing a relative state of charge indication signal; and
outputting, by a battery charge indicator, an indication of the relative state of charge of the battery based on relative state of charge indication signal.

### Claim 9 (depends on 8)

The method of claim 8, wherein the predefined motion is a double tap movement of the information handling system in a single direction.

### Claim 10 (depends on 9)

The method of claim 9, further comprising:
detecting that taps of the double tap movement occur within a specific interval of time.

### Claim 11 (depends on 9)

The method of claim 9, further comprising:
measuring a time domain waveform of detected movement of the information handling system; and
performing a Fast Fourier Transform conversion of the time domain waveform to verify that a movement is the double tap movement.

### Claim 12 (depends on 8)

The method of claim 8, wherein the motion sensor remains powered on while remaining components of the information handling system are powered off.

### Claim 13 (depends on 8)

The method of claim 8, further comprising:
waking the embedded controller via the relative state of charge request if the embedded controller is powered off.

### Claim 14

A method comprising:
detecting a first boot of an information handling system;
initializing an motion sensor of the information in response to the first boot being detected;
detecting, by the motion sensor, a predefined motion pattern;
providing a trigger signal as a battery charge request in response to the predefined motion being detected;
requesting, by an embedded controller of the information handling system, a relative state of charge of a battery in response to the trigger signal;
receiving the relative state of charge of the battery;
providing a relative state of charge indication signal; and
outputting, by a battery charge indicator, an indication of the relative state of charge of the battery based on relative state of charge indication signal.

### Claim 15 (depends on 14)

The method of claim 14, wherein the predefined motion is a double tap movement of the information handling system in a single direction.

### Claim 16 (depends on 15)

The method of claim 15, further comprising:
detecting that taps of the double tap movement occur within a specific interval of time.

### Claim 17 (depends on 15)

The method of claim 15, further comprising:
measuring a time domain waveform of detected movement of the information handling system; and
performing a Fast Fourier Transform conversion of the time domain waveform to verify that a movement is the double tap movement.

### Claim 18 (depends on 14)

The method of claim 14, wherein the motion sensor remains powered on while remaining components of the information handling system are powered off.

### Claim 19 (depends on 14)

The method of claim 14, further comprising:
waking the embedded controller via the relative state of charge request if the embedded controller is powered off.

### Claim 20 (depends on 14)

The method of claim 14, wherein the cold boot is detected based on an alternating power adaptor being inserted within an alternating power plug of the information handing system.