	US 12,135,821 B2
	Smart de-identification using date jittering
Sean Rose, Ottawa (CA); Weilong Song, Ottawa (CA); and Martin Scaiano, Ottawa (CA)
Assigned to PRIVACY ANALYTICS INC., (CA)
Filed by PRIVACY ANALYTICS INC., Ottawa (CA)
Filed on Sep. 1, 2023, as Appl. No. 18/460,526.
Application 18/460,526 is a continuation of application No. 17/730,592, filed on Apr. 27, 2022, granted, now 11,748,517.
Application 17/730,592 is a continuation of application No. 16/802,045, filed on Feb. 26, 2020, granted, now 11,334,685, issued on May 17, 2022.
Application 16/802,045 is a continuation of application No. 16/398,771, filed on Apr. 30, 2019, granted, now 10,586,074, issued on Mar. 10, 2020.
Application 16/398,771 is a continuation of application No. 15/385,710, filed on Dec. 20, 2016, granted, now 10,318,763, issued on Jun. 11, 2019.
Prior Publication US 2023/0409750 A1, Dec. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 21/62 (2013.01)

CPC G06F 21/6254 (2013.01)

20 Claims

1. A computer-implemented method to anonymize digitally stored patient records, the method comprising:

receiving a plurality of patient records from one or more databases;

assigning each of the received plurality of patient records into one of a first group associated with a first time period, a second group associated with a second time period, or a third group associated with a third time period, wherein the third time period falls between the first and second time periods;

determining for each of the patient records in the third group a time shift, such that a respective time shifted patient record of the third group is outside the time periods associated with the first group and the second group;

generating a maximum time shift based on the determined time shifts for the patient records of the third group; and

for each of the patient records assigned to the third group, temporally shifting the patient record by an amount less than the maximum time shift to anonymize the patient records in the third group.