Synchronizing wireless data acquisition of physiological information

• US 9,935,726 B2
• Filed: 01/13/2014
• Issued: 04/03/2018
• Est. Priority Date: 01/14/2013
• Status: Active Grant

• Current Assignee: Cognionics, Inc.
• Original Assignee: Cognionics, Inc.
• Inventors: Chi, Yu Mike
• Primary Examiner(s): O'Connor, Brian
• Application Number:
  US14/760,554
• Publication Number:
  US 20150358096A1
• Time in Patent Office: 1,541 Days
• CPC Class Codes: A61B 5/0024 for multiple sensor units attached to the patient, e.g. using a body or personal area network
• CPC Class Codes: G16H 10/20 for electronic clinical trials or questionnaires
• CPC Class Codes: H04J 3/0661 using timestamps
• 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: H04W 4/38 for collecting sensor information
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 56/0055 determining timing error of reception due to propagation delay
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A wireless data acquisition system includes a data acquisition unit including a data sensor; a first wireless data link and a second wireless timing link with predicable or low latency. Stimulus and time markers come from a trigger generator. Data signals from the data sensor are transmitted across the wireless data link and timing information of the data acquisition unit is transmitted across the wireless timing link. A receiving host receives the transmitted data and timing information for logging and/or processing.

Claims

1. A wireless data acquisition system comprising:

a data acquisition unit including a data sensor;

a trigger generator for providing time markers;

a wireless data link for transmission of data acquired by the data acquisition unit; and

a wireless timing link with predicable or low latency of less than 10 ms;

wherein the data acquisition unit is adapted for receiving time markers for the data acquisition unit across the wireless timing link from the trigger generator and;

wherein the data acquisition unit is adapted for combining the time markers with the data signals acquired from the data sensor for transmission to a receiver across the wireless data link.

2. A wireless data acquisition system according to claim 1, wherein said wireless timing link comprises an infrared transceiver.

3. A wireless data acquisition system according to claim 1, wherein said wireless timing link comprises a radio frequency transceiver.

4. A wireless data acquisition system according to claim 1, wherein said wireless data link comprises a radio frequency transceiver.

5. A wireless data acquisition system according to claim 1, wherein the sensor is adapted for sensing physiological signals.