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Establishment of wireless communications

A wireless and radio technology, applied in the direction of wireless communication, signal transmission system, sustainable communication technology, etc., can solve problems such as consumption

Inactive Publication Date: 2014-09-10
SECURE SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach is limited because it requires an affordable and accurate clock that consumes minimal operating power

Method used

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  • Establishment of wireless communications
  • Establishment of wireless communications
  • Establishment of wireless communications

Examples

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Embodiment Construction

[0038] The examples described in this section illustrate but do not limit the invention. The invention is defined by the appended claims.

[0039] Some embodiments of the invention provide discovery methods and systems with low power consumption. Some embodiments are suitable for networks with asymmetric device functionality. For example, in secure access systems such as smart keys for entering buildings or other secure areas, or for accessing computers or other devices, wireless keys (e.g., so-called U-keys, e.g., smart cards) need to be associated with locks or other protective devices. Devices (eg, card readers) communicate. The invention is not limited to keys and locks, but in some embodiments, the system has two types of devices, namely, a first type (e.g., a lock) and a second type (e.g., a key) having the following characteristics:

[0040] The first type is able to communicate with the second type.

[0041] The first type of devices do not need to communicate with...

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Abstract

Wireless communication protocols are provided for wireless device discovery, preferably (but not necessarily) with low power consumption. Some protocols are suitable for wireless locks and keys (e.g. smart cards and card readers).

Description

[0001] Michael Wurm [0002] Arun Sharma [0003] Cross References to Related Applications [0004] This application claims priority to US Provisional Application No. 61 / 565,450, filed November 30, 2011, which is hereby incorporated by reference. technical field [0005] The present invention relates to wireless communication between devices. Some embodiments are suitable for devices in which one or more are mobile. Background technique [0006] Wireless communications have been described in the following references: [0007] [1] Joseph Polastre, Jason Hill, David Culler, Versatile Low Power Media Access for Wireless Sensor Networks, SenSys’04, November 3-5, 2004, Baltimore, Maryland, USA (ACM). [0008] [2] Wei Ye, John Heidemann, Deborah Estrin, An Energy-Efficient MAC Protocol for Wireless Sensor Networks (2002). [0009] [3] Michael Buettner, Gary V.Yee, Eric Anderson, Richard Han, X-MAC: A Short Preamble MAC Protocol for Duty-Cycled Wireless Sensor Networks, SenSys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C17/02H04W52/44H04W28/16
CPCH04W48/16H04W52/0225Y02D30/70H04W8/005
Inventor A·K·沙尔玛M·乌尔姆
Owner SECURE SYST LTD
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