Electro-acoustic device charging and power supply
First Claim
Patent Images
1. A portable device charging system comprising:
- a transmitter comprising;
an electroacoustic charging pad having one or more electroacoustic transmitting elements;
a power source;
a signal generator;
an amplifier;
a proximity switch; and
a first antenna;
a receiver comprising;
one or more electroacoustic receiving elements;
a battery; and
,a second antenna;
whereby, said first and second antennae are in electromagnetic communication and said electroacoustic transmitting and receiving elements are in ultrasonic communication,said proximity switch senses a location of said receiver on said charging pad, andsaid controller only activates said electroacoustic transmitting elements proximal to said location.
3 Assignments
0 Petitions
Accused Products
Abstract
An electroacoustic portable device charger and direct power adaptor. Ultrasonic transducers transmit acoustic energy which is converted into electrical power for the purposes of charging portable device batteries. Specifically, a wireless personal data device (such as a mobile phone) charging pad is disclosed. Feedback control loop and phased piezo array steer acoustic wavefronts into receiver transducers without the threat of electromagnetic interference. Parameters are monitored to maximize power efficiency and transmission. Device cradles and covers can be retrofitted to accommodate piezo electronics or integrated therein.
22 Citations
20 Claims
-
1. A portable device charging system comprising:
-
a transmitter comprising; an electroacoustic charging pad having one or more electroacoustic transmitting elements; a power source; a signal generator; an amplifier; a proximity switch; and a first antenna; a receiver comprising; one or more electroacoustic receiving elements; a battery; and
,a second antenna; whereby, said first and second antennae are in electromagnetic communication and said electroacoustic transmitting and receiving elements are in ultrasonic communication, said proximity switch senses a location of said receiver on said charging pad, and said controller only activates said electroacoustic transmitting elements proximal to said location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20)
-
-
19. A system for delivering energy to power or charge an electrical source, comprising:
-
an electrical power supply; a transmitting ultrasound transducer that takes electrical energy from said electrical power supply and transmits an ultrasound energy wavefront in a determined direction; a receiving ultrasound transducer, coupled to said transmitting ultrasound transducer through an acoustic coupling medium, that receives said ultrasound energy wavefront and generates a generated electrical output through transduction in said receiving ultrasound transducer; an electronic signal conditioning circuit including a rectifier receiving said generated electrical output and outputting a conditioned electrical output; a controller for controlling an amount of conditioned electrical output to generate a controlled electrical output; and a battery unit receiving said controlled electrical output so as to charge said battery with electrical energy derived from said controlled electrical output.
-
Specification