Information access system for accessing information in contactless information storage device, and method therefor
First Claim
1. An information access system for accessing information in a contactless information storage device, said information access system comprising:
- a passive contactless information storage device capable of transmitting and receiving signals in a contactless manner;
a fixed-station information processing device including;
a unit for processing information, and a wireless transmitter which both transmits, in a contactless manner, a command signal for requesting transmission of information that is stored in said passive contactless information storage device, and supplies power in the contactless manner to said passive contactless information storage device; and
a mobile-station information processing device including;
a unit for processing information, a unit for presenting information, and a wireless receiver for receiving a response signal for response to the command signal, from said passive contactless information storage device in a contactless manner;
wherein while said fixed-station information processing device is supplying power to said passive contactless information storage device in the contactless manner, said passive contactless information storage device transmits, in response to the command signal, the response signal to said mobile-station information processing device in the contactless manner.
1 Assignment
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Accused Products
Abstract
An information access system includes: a passive contactless information storage device (500) capable of transmitting and receiving signals; a fixed-station information processing device (100) having an information processing unit, and a wireless transmitter for transmitting, in a contactless manner, a command signal for requesting transmission of information stored in the information storage device and supplying power in a contactless manner to the information storage device; and a mobile-station information processing device (200) having an information processing unit, an information presenting unit, a battery, and a wireless receiver for receiving a response signal for response to the command signal, from the information storage device in a contactless manner. While the fixed-station device is supplying power to the information storage device in the contactless manner, the information storage device transmits, in response to the command signal, the response signal to the mobile-station device in the contactless manner.
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Citations
7 Claims
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1. An information access system for accessing information in a contactless information storage device, said information access system comprising:
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a passive contactless information storage device capable of transmitting and receiving signals in a contactless manner;
a fixed-station information processing device including;
a unit for processing information, and a wireless transmitter which both transmits, in a contactless manner, a command signal for requesting transmission of information that is stored in said passive contactless information storage device, and supplies power in the contactless manner to said passive contactless information storage device; and
a mobile-station information processing device including;
a unit for processing information, a unit for presenting information, and a wireless receiver for receiving a response signal for response to the command signal, from said passive contactless information storage device in a contactless manner;
whereinwhile said fixed-station information processing device is supplying power to said passive contactless information storage device in the contactless manner, said passive contactless information storage device transmits, in response to the command signal, the response signal to said mobile-station information processing device in the contactless manner. - View Dependent Claims (2, 3)
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4. An information access system for accessing information in a contactless information storage device, said information access system comprising:
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a plurality of passive contactless information storage devices capable of transmitting and receiving signals in a contactless manner, at least first and second fixed-station information processing devices, each of said at least first and second fixed-station information processing devices including;
a unit for processing information, and a wireless transmitter which both transmits a command signal in the contactless manner and supplies power in the contactless manner to predetermined one or ones of said passive contactless information storage devices;
one or more mobile-station information processing devices, each of said one or more mobile-station information processing devices including;
a unit for processing information, a unit for presenting information, and a wireless receiver adapted to receive a response signal for response to the command signal in the contactless manner from one or ones of said passive contactless information storage devices that is or are located in a communication range of that mobile-station information processing device; and
a timing supply device which both provides a timing signal for transmitting a command and supplies power to said at least first and second fixed-station information processing devices respectively in a predetermined cycle or at predetermined intervals, wherein each of said at least first and second fixed-station information processing devices receives corresponding ones of the timing signals, and transmits the command signal and supplies the power in response to the received timing signal, and while each of said plurality of passive contactless information storage devices is receiving power in the contactless manner from one of said at least first and second fixed-station information processing devices, that passive contactless information storage device transmits the response signal for response to the command signal transmitted from said one fixed-station information processing device, in the contactless manner to one or ones of said mobile-station information processing devices that is or are located in a communication range of that passive contactless information storage device.
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5. A mobile information processing device comprising:
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an information processing unit, an information presenting unit, and a wireless receiver capable of receiving, in a contactless manner, a response signal from a passive contactless information storage device that is transmitted in response to reception of a command signal from another information processing device, wherein while said wireless receiver is in an active state and the other information processing device is supplying power to the passive contactless information storage device in a contactless manner after the other information processing device has received the command signal, said wireless receiver receives the response signal in the contactless manner from the passive contactless information storage device, and said information processing unit presents content information carried by the response signal to said information presenting unit on the basis of an identification carried by the response signal.
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6. In a system comprising a fixed-station information processing device and a mobile-station information processing device, a method of accessing information in a passive contactless information storage device capable of transmitting and receiving signals, said method comprising the steps of:
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causing said fixed-station information processing device both to transmit, in a contactless manner, a command signal for requesting transmission of information stored in the passive contactless information storage device, and to supply power to the passive contactless information storage device in the contactless manner; and
causing said mobile-station information processing device to receive, from the passive contactless information storage device in a contactless manner, the response signal for response to the command signal, while the fixed-station information processing device is supplying power to the passive contactless information storage device in the contactless manner.
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7. In a system comprising at least first and second fixed-station information processing devices, one or more mobile-station information processing devices, and a timing supply device for providing a timing signal for transmitting a command and supplying power, to said at least first and second fixed-station information processing devices, a method for accessing information in a passive contactless information storage device, said method comprising the steps of:
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causing said timing supply device to transmit a timing signal to each of said at least first and second fixed-station information processing devices in a predetermined cycle or at predetermined intervals;
in response to the timing signal, causing each of said at least first and second fixed-station information processing devices both to transmit a command signal in a contactless manner and to supply power in the contactless manner, to a plurality of passive contactless information storage devices; and
causing one or ones of said mobile-station information processing devices that is or are located in communication ranges of the plurality of passive contactless information storage devices to receive response signals for response to the command signal in the contactless manner, while each of the plurality of passive contactless information storage devices is receiving power in the contactless manner from the one of said at least first and second fixed-station information processing devices.
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Specification