公开(公告)号：US12041478B2

公开(公告)日：2024-07-16

申请号：US18187003

申请日：2023-03-21

Applicant: Apple Inc.

Inventor： Rachid Kachemir ,  Krishna M. Behara ,  Ashok Kumar Harikumar ,  Christopher R. Purcell ,  Welly Kasten

IPC: H04W24/10 ,  H04W12/02 ,  H04W48/16 ,  H04W64/00 ,  H04W76/10

CPC classification number: H04W24/10 ,  H04W48/16 ,  H04W64/00 ,  H04W76/10 ,  H04W12/02

Abstract: In some implementations, a computing system can perform crowd sourced access point mapping using privacy preserving techniques. For example, a server device can receive access point data reports from multiple user devices that includes various attributes and/or measurements with respect to access points with which the user devices have established connections. The access point data reports can be delivered without identifying the user devices, or users thereof, and their exact locations. Based on the access point data reports, the server device can map locations of access points and relationships between access points to generate network topologies, network locations, network quality scores, and various other characteristics of networks and/or access points. The generated access point data can be served to user devices so that the user devices can improve the efficiency of the interactions between user devices and the detected access points and/or networks.

公开(公告)号：US20230308921A1

公开(公告)日：2023-09-28

申请号：US18187003

申请日：2023-03-21

Applicant: Apple Inc.

Inventor： Rachid Kachemir ,  Krishna M. Behara ,  Ashok Kumar Harikumar ,  Christopher R. Purcell ,  Welly Kasten

IPC: H04W24/10 ,  H04W48/16 ,  H04W64/00 ,  H04W76/10

CPC classification number: H04W24/10 ,  H04W48/16 ,  H04W64/00 ,  H04W76/10 ,  H04W12/02

Abstract: In some implementations, a computing system can perform crowd sourced access point mapping using privacy preserving techniques. For example, a server device can receive access point data reports from multiple user devices that includes various attributes and/or measurements with respect to access points with which the user devices have established connections. The access point data reports can be delivered without identifying the user devices, or users thereof, and their exact locations. Based on the access point data reports, the server device can map locations of access points and relationships between access points to generate network topologies, network locations, network quality scores, and various other characteristics of networks and/or access points. The generated access point data can be served to user devices so that the user devices can improve the efficiency of the interactions between user devices and the detected access points and/or networks.

公开(公告)号：US20170300490A1

公开(公告)日：2017-10-19

申请号：US15487391

申请日：2017-04-13

Applicant: Apple Inc.

Inventor： Rachid Kachemir ,  Krishna M. Behara ,  Bradley C. Kellett

IPC: G06F17/30 ,  G06F7/24

CPC classification number: G06F16/2255 ,  G06F7/24 ,  G06F16/278

Abstract: A distributed offline indexing system uses a set of data processing systems in a distributed computing environment to create an index database that can store, for example, data about geographical or geospatial areas. The index database can be distributed across a plurality of database shards such that each shard includes an index file and a DB file. The index files include keys that refer to values in their corresponding DB files. The keys are used to look-up their corresponding values at search time. At indexing time, the keys are hashed, with an entropy creating hash, to distribute the keys across the shards.