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US 6,552,512 B1Granted
Portable device charger based on audio energy power
OwnerScott C. Harrisinventor
Life of this patent
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Abstract
A device for receiving audio signal from an audio source, and converting said audio signal into DC power to be used to recharge a portable device. The portable device may be for example a PDA, or laptop or cellular phone. The power from the audio signal is rectified, and may be DC to DC converted in order to produce a specified DC level. That value is then used to charge the portable device.
Claims15
A device, comprising:
- a connector, of a size which connects to an audio source which provides an audio signal for an audio playing device;
- an operation circuit, changing a signal received from said audio source into DC power, and producing a DC output.
A circuit, comprising
- a rectifier part, receiving an electrical signal representing an audio signal from an audio source of a format for playing over audio hardware, and rectifying said audio signal from said audio source;
- and
- a DC to DC converter circuit, which receives the rectified audio signal from said rectifier part, and produces an output signal of a desired DC level.
A method, comprising:
- receiving an audio signal from an audio circuit from a connector that is sized to receive an audio headset plug;
- rectifying said audio signal to produce a rectified DC output at a specified and desired DC level;
- and
- using said DC level output to provide power to a portable device.
1 more element
Dependencies are inferred from the claim text.