Patent ID: 9578617
Date: 2017-02-21
CPC Classifications: G06Q,H04L,H04W

Claim:
1. A system for measuring in an anonymous manner one or more spatial positions of one or more user devices within a region, wherein the system includes a wireless arrangement for receiving signals from the one or more user devices for determining the one or more spatial positions of the one or more user devices, wherein the wireless arrangement is configured to receive one or more user identification codes from the one or more user devices, wherein the one or more user identification codes include N bits for each of the one or more user devices; the system is configured to apply a mapping function to map the one or more user identification codes to form one or more corresponding secondary identification codes by decreasing an entropy of said each of the one or more user identification codes by K bits; and the system is further configured to modify the one or more corresponding secondary identification codes by increasing an entropy of said each of the one or more corresponding secondary identification codes by M bits to generate a post ID code for each of the one or more user devices, wherein the post ID code is used to represent each of the one or more user devices when providing the one or more spatial positions for each of the one or more user devices.