Tire monitoring sensor, system and conrol method thereof, and vehicle having the same
US-2024416687-A1 · Dec 19, 2024 · US
Wireless power transmission audio system and device on transmitting end and loudspeaker for use in such a system
US8929563B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8929563-B2 |
| Application number | US-201113329457-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2011 |
| Priority date | Dec 22, 2010 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The transmitter of a wireless power transmission audio system includes: a transmission signal generating section for generating a transmission signal comprised of an RF signal; a first resonant circuit which receives and sends out the transmission signal; a detecting section for sensing a variation in the transmission signal; and a transmission signal adjusting section. The loudspeaker of the system includes: a second resonant circuit for receiving the transmission signal by producing a magnetic field resonant coupling phenomenon; and an audio output section for reproducing the audio signal. At least one of the transmitter and the loudspeaker includes an impedance adjusting section which changes an impedance value on the transmission line of the transmission signal. When the impedance adjusting section changes the impedance value, the transmission signal adjusting section changes the signal waveform of the transmission signal.
First claim
Opening claim text (preview).
What is claimed is: 1. A wireless power transmission audio system comprising: a device on a transmitting end; and a loudspeaker which is associated with the device on the transmitting end, the wireless power transmission audio system being configured to transmit electric power and an audio signal wirelessly from the device on the transmitting end to the loudspeaker, wherein the device on the transmitting end includes: a transmission signal generating circuit configured to gen…
Assignees
Inventors
Classifications
Electricity · mapped topic
- H02J50/12Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8929563B2 cover?
- The transmitter of a wireless power transmission audio system includes: a transmission signal generating section for generating a transmission signal comprised of an RF signal; a first resonant circuit which receives and sends out the transmission signal; a detecting section for sensing a variation in the transmission signal; and a transmission signal adjusting section. The loudspeaker of the s…
- Who is the assignee on this patent?
- Kinoshita Keisuke, Kawamura Junichi, Okamura Shutai, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H02J50/12. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 06 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).