Variable precision location sharing

A technology of precision and location information, applied in the field of location sharing, which can solve the problem that the location sharing system does not provide

Active Publication Date: 2013-07-10
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Finally, existing location sharing systems do not provide a means for granting higher privileges to recipients of location information on an ad hoc basis

Method used

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  • Variable precision location sharing
  • Variable precision location sharing
  • Variable precision location sharing

Examples

Experimental program
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Embodiment Construction

[0015] Exemplary Variable Precision Location Sharing System

[0016] Figure 1A is a block diagram of a variable precision location sharing system 100 . In some implementations, the system 100 includes location-aware devices 102a-102c and a distribution service 106 in communication with each other over a network 104 (eg, the Internet). Devices 102a-102c may be mobile devices with communication capabilities such as smart phones, email devices, gaming devices, laptop computers, electronic tablets, media players, or any other location-aware device. Each device 102a-102c may include a display surface for presenting a user interface for facilitating user input. The display may be a touch-sensitive surface capable of responding to multi-touch input with one or more fingers or a stylus.

[0017] In some implementations, the devices 102a-102c may determine or receive current location information. For example, one or more of the devices 102a-102c may include or be coupled to a Globa...

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PUM

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Abstract

A secure location sharing system is disclosed that allows publishers to share their locations with subscribers. Each publishing device generates, encrypts and publishes its location information with a specified precision to a distribution service for distribution to one or more subscribing devices. The distribution service provides secure distribution of the location information to the distribution list but cannot access the publisher's precise location information, which remains encrypted until decrypted at the subscribing devices. Publishers can share their location information with varying levels of precision for different subscribers. Publishers can select at least two dimensions of location information precision: spatial and temporal. For less precise location sharing, the publishing device can randomize or obscure the precise location of the publishing device. The publisher can move a subscriber or a group of subscribers to a lower or higher level of location precision by generating new key pairs at the publishing device.

Description

technical field [0001] The present disclosure generally relates to location sharing among multiple devices. Background technique [0002] Location sharing is a popular application of modern mobile devices. Existing location sharing systems do not provide users with control over the accuracy of their location information. And, the network supporting the location sharing is aware of the shared location information while ensuring security against external attackers. Users must trust that the companies operating the servers that process their location information will not use their location information in unwanted ways. Ultimately, existing location sharing systems do not provide a means for granting higher privileges to recipients of location information on an ad hoc basis. Contents of the invention [0003] A secure location sharing system is disclosed that allows publishers to share their locations with subscribers. Each publishing device generates, encrypts, and publis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04W4/02H04L29/06H04W4/029H04W4/20
CPCH04L63/0442H04L63/105G01S5/0027H04W4/02H04W4/20H04L67/55H04W4/029
Inventor P·T·伟斯顿
Owner APPLE INC
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