Devices and methods to compress sensor data

• US 9,986,069 B2
• Filed: 09/28/2016
• Issued: 05/29/2018
• Est. Priority Date: 09/28/2016
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Yeung, Fai, Huang, Jinshi James
• Primary Examiner(s): Haider, Syed
• Application Number:
  US15/279,307
• Publication Number:
  US 20180091630A1
• Time in Patent Office: 608 Days
• CPC Class Codes: H04B 1/385 Transceivers carried on the body, e.g. in helmets
• CPC Class Codes: H04L 43/024 by adaptive sampling
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Devices and methods to compress sensor data are generally described herein. An exemplary wearable device to compress sensor data may include a sensor including circuitry to sense sensor data, and a communication circuit to receive, from a remote device, a detected link quality of a low-power communication channel used to communicate with the remote device. The communication circuit further to transmit compressed data to a remote device over the low power communication channel. The wearable device may further include a compressible sensor data module to apply a compression algorithm to compress received sensor data based on the detected link quality to provide the compressed sensor data.

Claims

1. A wearable device to compress sensor data, the wearable device comprising:

a sensor including circuitry to sense sensor data;

a communication circuit including a modem to;

receive, from a remote device, a detected link quality of a low-power communication channel used to communicate with the remote device; and

transmit compressed data to the remote device over the low power communication channel; and

a compressible sensor data module including a compression engine to;

receive the detected link quality;

apply a selected compression algorithm to compress received sensor data, using adaptive delta pulse code modulation, based on the detected link quality to provide the compressed sensor data; and

reset the selected compression algorithm in response to;

an indication from the modern that a link to the remote device has been lost;

or

an indication of lost sensor data packets from the modem.

2. The wearable device of claim 1, wherein to compress the sensor data based on the link quality, the compression engine compresses the sensor data to reduce a transmission bandwidth by a factor of two or more.

3. The wearable device of claim 1, wherein the sensor collects at least one of motion data, pressure data, sound data, light data, location data, or proximity data.

4. The wearable device of claim 1, wherein the low-power communication channel is a Bluetooth Low Energy channel.

5. A method to compress sensor data at a wearable device, the method comprising:

receiving sensor data;

receiving via a modem, from a remote device, a link quality of a low-power communication channel used to communicate with the remote device;

applying a selected compression algorithm to compress the received sensor data based on the received link quality, wherein the compression algorithm includes adaptive delta pulse code modulation;

resetting the selected compression algorithm in response to;

an indication from the modem that a link to the remote device has been lost;

or

an indication of lost sensor data packets from the modem; and

transmitting the compressed data to the remote device over the low power communication channel.

6. The method of claim 5, wherein compressing the sensor data based on the link quality includes compressing the sensor data to reduce a transmission bandwidth of the sensor data by a factor of two or more.