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Backscatter devices and network systems incorporating backscatter devices

A technology of backscattering and auxiliary devices, applied in transmission systems, selection devices, radio transmission systems, etc., can solve the problems of unreceivable communication, low data rate, etc.

Active Publication Date: 2018-06-08
UNIV OF WASHINGTON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the devices are often limited by low data rates at close range, or require the use of custom full-duplex hardware at the receiver, making the communication unreceivable by any existing Wi-Fi devices

Method used

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  • Backscatter devices and network systems incorporating backscatter devices
  • Backscatter devices and network systems incorporating backscatter devices
  • Backscatter devices and network systems incorporating backscatter devices

Examples

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Embodiment Construction

[0067] Specific details are set forth below to provide a sufficient understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without these specific details. In some instances, well-known circuits, control signals, networking components, timing protocols, and software operations have not been shown in detail in order to avoid unnecessarily obscuring the described embodiments of the invention.

[0068] Examples described herein can provide backscatter devices and systems that can synthesize standard-compliant wireless transmissions (e.g., Wi-Fi and / or ZigBee) to standard-compliant wireless transmissions, such as Wi-Fi access points and / or ZigBee hubs. off-the-shelf device communication. Sensors utilizing examples of the described backscatter technique can have orders of magnitude lower power consumption, which can greatly improve battery life and / or reduce the size and cost of batte...

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PUM

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Abstract

Examples described herein include devices and systems utilizing backscatter communication to directly generate transmissions in accordance with wireless communication protocols that can be decoded existing devices. Examples include devices that generate 802.11b transmissions using backscatter communication. Examples of network stacks are described which may facilitate backscatter devices to coexist with other devices (e.g. in the ISM band), without incurring, or reducing a need for, the power consumption of carrier sense and medium access control operations.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of the earlier filing date of U.S. Provisional Application No. 62 / 204,382, filed August 12, 2015, under 35 U.S.C. §119, the entirety of which is hereby incorporated by reference for any purpose and into this article. This application also claims the benefit of the earlier filing date of U.S. Provisional Application No. 62 / 236,761, filed October 2, 2015, under 35 U.S.C. §119, the entirety of which is hereby incorporated by reference for any purpose incorporated into this article. [0003] Statement Regarding Federally Sponsored Research or Development [0004] This invention was made with government support under grants CNS-1407583 from the National Science Foundation and CNS-1452494 from the National Science Foundation. The government has certain rights in this invention. technical field [0005] The examples described herein relate generally to wireless communications. Example...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q5/22
CPCH04Q5/22H04Q2213/13098H04Q2213/1319H04B1/40H04B5/77H04B1/713H04B7/0413H04W74/0808
Inventor S·戈拉科塔B·凯洛格V·塔拉J·R·史密斯
Owner UNIV OF WASHINGTON
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