公开(公告)号：US08612756B1

公开(公告)日：2013-12-17

申请号：US13861152

申请日：2013-04-11

Applicant: Google, Inc.

Inventor： Reto Meier ,  Jeff Brown ,  Nicholas Julian Pelly ,  Angana Ghosh ,  Stephen David Zelinka ,  Mohammed Waleed Kadous

IPC: H04L29/06

CPC classification number: H04W4/02

Abstract: Certain embodiments of this disclosure include methods and devices for adjusting the precision of location information. According to one embodiment, a method is provided. The method may include: obtaining a request for location information from an application; determining that the location information needs to be adjusted; obtaining the location information; adjusting the location information, wherein the adjusting includes: (i) adding noise to the location information to obtain noisy location information, (ii) discretizing the noisy location information to obtain discretized location information, and (iii) hysteresizing the discretized location information to obtain adjusted location information. The adjusted location information may then be provided to the requesting application.

Abstract translation: 本公开的某些实施例包括用于调整位置信息的精度的方法和装置。 根据一个实施例，提供了一种方法。 该方法可以包括：从应用获取位置信息的请求; 确定位置信息需要调整; 获取位置信息; 调整所述位置信息，其中所述调整包括：（i）向所述位置信息添加噪声以获得噪声位置信息，（ii）离散所述噪声位置信息以获得离散位置信息，以及（iii）使所述离散化位置信息进行滞后以获得 调整后的位置信息。 然后可以将调整后的位置信息提供给请求应用。