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Signaling charging in wireless power environment
US9130407B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130407-B2 |
| Application number | US-24986608-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 10, 2008 |
| Priority date | May 13, 2008 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
Official abstract text for this publication.
Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmitter to create a coupling-mode region within a near field of the transmitter during a synchronization portion of a time-multiplexed recurring period. During a power transmission portion of the recurring period, the electromagnetic field will continue to be generated when there is a receiver within the coupling-mode region, or the electromagnetic field will be disabled when there are no receivers within the coupling-mode region. Different segments of the power transmission portion are allocated to different receivers. The transmitter issues serial commands to the receivers by on/off keying the electromagnetic field. The receivers issue serial replies by changing the amount of power consumed from the electromagnetic field between two different states. The serial commands and serial replies are used to determine the number of receivers, their power requirements, and the allocation of segments.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of wireless power transfer, comprising: generating an electromagnetic field, during a first portion of a recurring period, to wirelessly transfer power at a resonant frequency of a transmitter within a coverage region; continuing generation of the electromagnetic field, during a second portion of the recurring period, when there is at least one receiver detected within the coverage region; and discontinuing generation of the electromagnetic fie…
Assignees
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Classifications
- G06K7/0008Primary
Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9130407B2 cover?
- Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmitter to create a coupling-mode region within a near field of the transmitter during a synchronization portion of a time-multiplexed recurring period. During a power transmission portion of the recurring period, the electromagnetic field will continue to…
- Who is the assignee on this patent?
- Toncich Stanley Slavko, Von Novak William H, Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification G06K7/0008. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 08 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).