Contact-less Power Transmitter and Contact-less Power Transmission System
First Claim
1. A contact-less power transmitter, comprising:
- a transmitting circuit for transmitting electric power to at least one contact-less power receiver in non-contact fashion;
at least one storage pocket for accommodating one of the contact-less power receivers;
a storage detector for detecting insertion of an object into one of the storage pockets;
an output detector for determining whether the object inserted in the storage pocket is the contact-less power receiver to which the power is to be transmitted; and
a transmission controller for controlling the transmission of the power from the transmitting circuit;
wherein;
the transmitting circuit includes an excitation element and a resonance element, both corresponding to each of the storage pockets, and under a control signal from the transmission controller, transmits the power from one storage pocket specified by the transmission controller; and
the transmission controller, upon the storage detector detecting the insertion of the object, uses information from the output detector to determine whether the object is the contact-less power receiver to which the power is to be transmitted, and upon the object being determined to be the contact-less power receiver, controls the transmitting circuit to transmit the power from the corresponding storage pocket.
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Accused Products
Abstract
In a non-contact electric power transmission system that electrically charges a device in a non-contact fashion, a transmitter includes excitation and resonance elements, and transmits power from a specified storage pocket under a control signal from a transmission controller. The transmission controller, upon insertion of an object being detected, uses information from an output detector to determine the object to be a destination device to which power is to be transmitted, and controls the corresponding transmitter circuit to transmit the power. The information from the output detector can include a transmission rate, or a differential between a load modulation period of a receiver and that of the transmitter. The transmission controller acquires charge information on the receiver inserted in one of the storage pockets to control the power transmission. This simplifies the device to be charged for non-contact device charging, and reduces the device in dimensions and weight.
265 Citations
13 Claims
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1. A contact-less power transmitter, comprising:
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a transmitting circuit for transmitting electric power to at least one contact-less power receiver in non-contact fashion; at least one storage pocket for accommodating one of the contact-less power receivers; a storage detector for detecting insertion of an object into one of the storage pockets; an output detector for determining whether the object inserted in the storage pocket is the contact-less power receiver to which the power is to be transmitted; and a transmission controller for controlling the transmission of the power from the transmitting circuit; wherein; the transmitting circuit includes an excitation element and a resonance element, both corresponding to each of the storage pockets, and under a control signal from the transmission controller, transmits the power from one storage pocket specified by the transmission controller; and the transmission controller, upon the storage detector detecting the insertion of the object, uses information from the output detector to determine whether the object is the contact-less power receiver to which the power is to be transmitted, and upon the object being determined to be the contact-less power receiver, controls the transmitting circuit to transmit the power from the corresponding storage pocket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A contact-less power transmission system for transmitting electric power to a contact-less power transmitter and at least one contact-less power receiver in non-contact fashion, wherein:
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the contact-less power transmitter includes a transmitting circuit for transmitting the power to the at least one contact-less power receiver in non-contact fashion, at least one storage pocket for accommodating the at least one contact-less power receiver, a storage detector for detecting insertion of an object into the at least one storage pocket, an output detector for, upon determining whether the object inserted in the storage pocket is the contact-less power receiver to which the power is to be transmitted, detecting a charge state of the contact-less power receiver, a transmission controller for controlling the transmission of the power from the transmitting circuit, and a display section for displaying the charge state of the contact-less power receiver; the transmitting circuit includes an excitation element and a resonance element, both corresponding to each of the storage pockets, and under a control signal from the transmission controller, transmits the power from the storage pocket specified by the transmission controller; the transmission controller, upon the storage detector detecting the insertion of the object, uses the output detector to determine whether the object is the contact-less power receiver to which the power is to be transmitted, and upon the object being determined to be the contact-less power receiver, controls the transmitting circuit to transmit the power from the corresponding storage pocket; and the transmission controller further receives charge state information from the output detector and makes a display section display the charge state of the contact-less power receiver in the storage pocket. - View Dependent Claims (11, 12)
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13. A digital television system comprising:
a digital television for receiving and reproducing three dimensional video data; and pairs of three dimensional glasses, each pair being used to view the three dimensional video data being reproduced; wherein; the digital television includes an image signal receiving/reproducing block and a contact-less power transmitter for transmitting electric power to one of the three dimensional glasses pairs in non-contact fashion; the image signal receiving/reproducing block includes a controller and a display section for displaying a storage pocket state and a charge state of one of the three dimensional glasses pairs; the contact-less power transmitter includes a transmitting circuit for transmitting the power to at least one of the three dimensional glasses pairs in non-contact fashion, at least one storage pocket for accommodating one pair of three dimensional glasses, a storage detector for detecting insertion of an object into the at least one storage pocket, an output detector for determining whether the object inserted in the storage pocket is the three dimensional glasses to which the power is to be transmitted, the output detector further detecting the charge state of the three dimensional glasses, and a transmission controller for controlling the transmission of the power from the transmitting circuit; the transmitting circuit includes an excitation element and a resonance element, both corresponding to each of the storage pockets, and under a control signal from the transmission controller, transmits the power from one storage pocket specified by the transmission controller; the transmission controller, upon the storage detector detecting the insertion of the object, uses information from the output detector to determine whether the object is the three dimensional glasses to which the power is to be transmitted, and upon the object being determined to be the three dimensional glasses, controls the transmitting circuit to transmit the power from the corresponding storage pocket; and upon the image signal receiving/reproducing block determining whether the received video signal data is three dimensional video signal data and then determining that the received signal data is three dimensional video signal data, the controller makes the display section display the state of the storage pocket and the charge state of the three dimensional glasses pair.
Specification