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Self-energized wireless sensor and method using magnetic field communications
US8971801B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8971801-B2 |
| Application number | US-201213548813-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 13, 2012 |
| Priority date | Jul 15, 2011 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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Manufacturing processes monitor forces or pressures within a machine. Metal within machines affect wireless communications within the machines for reporting monitored data. An embodiment of the present invention is a sensor that provides wireless communications unaffected by metals and with less electrical noise than slip rings. An embodiment can monitor manufacturing processes, such as by employing a piezoelectric transducer to measure forces or pressures in a machine and generate an electrical signal representing, for example, forces measured by the piezoelectric transducer. A threshold modulator circuit converts the electrical signal into a series of electrical pulses, which can be transmitted as a corresponding series of magnetic field pulses to a wireless receiver. The receiver reconstructs the original electrical signal, thereby enabling a receiver system to determine physical activities in the machine. The embodiment may be self-powered through use of power generated by the piezoelectric transducer.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of transmitting information by a circuit via a wireless medium, the method comprising: converting an electrical signal representing information into a series of electrical pulses; and generating a series of magnetic field pulses corresponding to the series of electrical pulses to transmit a representation of the information via a wireless medium. 2. The method of claim 1 , further comprising: receiving the series of magneti…
Assignees
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Classifications
- H04B5/24Primary
Electricity · mapped topic
Electricity · mapped topic
- H04B5/0031Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8971801B2 cover?
- Manufacturing processes monitor forces or pressures within a machine. Metal within machines affect wireless communications within the machines for reporting monitored data. An embodiment of the present invention is a sensor that provides wireless communications unaffected by metals and with less electrical noise than slip rings. An embodiment can monitor manufacturing processes, such as by empl…
- Who is the assignee on this patent?
- Gao Robert X, Sah Sripati, Univ Connecticut
- What technology area does this patent fall under?
- Primary CPC classification H04B5/24. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).