Source: http://www.google.com/patents/US7940180?ie=ISO-8859-1
Timestamp: 2014-07-10 18:27:00
Document Index: 406468049

Matched Legal Cases: ['application No. 2005', 'art 150', 'art 150', 'art 150', 'art 200', 'art 150', 'art 150', 'art 150', 'Application No. 2005']

Patent US7940180 - RFID tag, device for communicating with a RFID tag, system for communicating ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA projector has an antenna configured to transmit and receives information to and from a RFID circuit element including an IC circuit part configured to store and hold address information of an electronic file and device information about devices capable of executing a processing operation, and a projection...http://www.google.com/patents/US7940180?utm_source=gb-gplus-sharePatent US7940180 - RFID tag, device for communicating with a RFID tag, system for communicating with a RFID tag, and apparatus for producing RFID tagAdvanced Patent SearchPublication numberUS7940180 B2Publication typeGrantApplication numberUS 11/856,707Publication dateMay 10, 2011Filing dateSep 17, 2007Priority dateMar 17, 2005Also published asUS20080074266, WO2006098368A1Publication number11856707, 856707, US 7940180 B2, US 7940180B2, US-B2-7940180, US7940180 B2, US7940180B2InventorsTsuyoshi Ohashi, Mitsuaki Koketsu, Kunihiro Yasui, Mika Matsushima, Kazunari TakiOriginal AssigneeBrother Kogyo Kabushiki KaishaExport CitationBiBTeX, EndNote, RefManPatent Citations (17), Non-Patent Citations (1), Referenced by (1), Classifications (10), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetRFID tag, device for communicating with a RFID tag, system for communicating with a RFID tag, and apparatus for producing RFID tagUS 7940180 B2Abstract A projector has an antenna configured to transmit and receives information to and from a RFID circuit element including an IC circuit part configured to store and hold address information of an electronic file and device information about devices capable of executing a processing operation, and a projection control part and a control circuit configured to generate access information, transmit it to the RFID circuit element, acquire device information from its reply signal, and acquire file information based on the acquired device information.
CROSS-REFERENCE TO RELATED APPLICATION This is a CIP application PCT/JP2006/305132, filed Mar. 15, 2006, which was not published under PCT article 21(2) in English and claims the benefits of Japanese Patent application No. 2005-077452 filed Mar. 17, 2005.
SUMMARY OF THE INVENTION An object of the present invention is to provide a RFID tag capable of causing various processing functions to be executed for an electronic file acquired from the RFID tag without the need for an operator to carry out troublesome operations, and thus improving convenience of the operator, a device for communicating with a RFID tag configured to carry out its processing operations, a system for communicating with a RFID tag including the RFID tag and the device for communicating with a RFID tag, and a Apparatus for producing RFID tag for manufacturing the RFID tag.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top view showing a general schematic structure of a RFID tag in an embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to drawings.
There is provided on the surface (top surface) of the base 2 an area S (an expression area; in this example, the letters of �2004 Application List�) in which the content of an electronic file is expressed (printed or written by hand), for which predetermined processing is performed (details are to be described later) by the tag card 1. Instead of letters, figures, symbols, or just colors or patterns may be accepted as long as they provide the recognition and identification of the content of the electronic file in any form. Further, the size of the tag card 1 can be various ones, for example, that of a name card. A sheet of paper of normal A4 size or B5 size (one not printed thereon may be accepted), to which the RFID circuit element To is attached (for example, one to which a label-shaped material is attached), may also be accepted.
In the tag card 1 with the above-mentioned configuration, the IC circuit part 150 of the RFID circuit element To stores and holds file information (in this example, address information of the file �2004 Application List� described above. Details will be described later.) about an electronic file to be processed and device information (in this example, ID of the projector 100 configured to carry out projection. In addition, a printer configured to print out, a personal computer configured to display a list for data edition, a fax, etc., may be accepted. Details will be described later.) about devices for communicating with a RFID tag capable of executing the predetermined processing operation for the electronic file. Then, by bringing the tag card 1 close to the side of the device for communicating with a RFID tag fitted with a reading function of the RFID circuit element To (by causing it to exist in the range where communication is available) so that the file information and device information are acquired by the device for communicating with a RFID tag, the electronic file is read to the device for communicating with a RFID tag from the information server and at the same time, the electronic file is subjected to the above-mentioned predetermined processing operation.
The transmitting portion 212 includes an oscillation circuit 215 that functions as a carrier wave generating part for generating a carrier wave to access (read/write) the RFID tag information (in this example, address information of an electronic file, details to be described later) of the IC circuit part 150 of the RFID circuit element To, a transmission multiplying circuit 216 (in the case of the �TX_ASK signal�, an amplification factor variable amplifier may be used) for modulating (in this example, amplitude modulation based on the �TX_ASK� signal from the control circuit 202) the carrier wave generated by the carrier wave generating part based on the signal supplied from the control circuit 202, and a variable transmission amplifier 217 for amplifying (in this example, amplification the amplification factor of which is determined by the �TX_PWR� signal from the control circuit 202) the modulated wave modulated by the transmission multiplying circuit 216. Then, the carrier wave generated by the carrier wave generating part uses radio frequencies, such as the short-wave band (13.56 MHz etc.), the UHF band, the microwave band, etc., and the output of the transmission amplifier 217 is transmitted to the antenna 210 via the transmit-receive splitter 214 and supplied to the IC circuit part 150 of the RFID circuit element To. There may be the case where the RFID tag information to be transmitted and received is just a mere carrier wave, not limited to the modulated signal as described above.
The receiving portion 213 includes a first receiving signal multiplying circuit 218 for multiplying the reflected wave from the RFID circuit element To received by the antenna 210 and the generated carrier wave, a first band-pass filter 219 for extracting only a signal in a necessary band from the output of the first receiving signal multiplying circuit 218, a first receiving signal amplifier 221 for amplifying the output of the first band-pass filter 219, a first limiter 220 for further amplifying the output of the first receiving signal amplifier 221 to convert it into a digital signal, a second receiving signal multiplying circuit 222 for multiplying the reflected wave from the RFID circuit element To received by the antenna 210 and the carrier wave delayed 90 degrees in phase by a phase shifter 227 after generated, a second band-pass filter 223 for extracting only a signal in a necessary band from the output of the second receiving signal multiplying circuit 222, a second receiving signal amplifier 225 for further amplifying the output of the second band-pass filter 223, and a second limiter 224 for further amplifying the output of the second receiving signal amplifier 225 to convert it into a digital signal. Then, a signal �RXS_I� output from the first limiter 220 and a signal �RXS_Q� output from the second limiter 224 are input to the control circuit 202 and subjected to processing.
The outputs of the first receiving signal amplifier 221 and the second receiving signal amplifier 225 are also input to a received signal strength indicator (RSSI) circuit 226 as a strength detector and a signal �RSSI� indicative of the strength of the signal is input to the control circuit 202. As described above, in the scanner part 200, the reflected wave from the RFID circuit element To is demodulated by the I-Q quadrature demodulation in this example.
First, in step S505, a signal to read information stored in the IC circuit part 150 of the RFID circuit element To in the tag card 1 is transmitted via the radio frequency circuit 201 and the antenna 210. In detail, a �Scroll ALL ID� signal (or �Ping� signal) to read information stored in the RFID circuit element To is generated and transmitted via the radio frequency circuit 201 to the RFID circuit element To present in the range in which communication is available to prompt reply. On this occasion, identification information (device ID) unique to the projector 100 is also transmitted to the RFID circuit element To in order for the RFID circuit element To recognize the device for communicating with a RFID tag (refer to step S610 in FIG. 8, to be described later). The device ID may be an ID given to each type of device or an ID given to an individual device.
After that, the operation goes to step S510, where it is determined whether or not a reply signal transmitted (returned) from the RFID circuit element To in accordance with the �Scroll ALL ID� signal is received via the antenna 210 and taken into the control circuit 202 via the radio frequency circuit 201.
When it matches with the list, the determination in step S615 is satisfied and the operation goes to step S620. In step S620, it is determined whether or not the received signal is the reading signal (the above-described �Scroll ALL ID� signal or the �Ping� signal, etc.) from the device for communicating with a RFID tag, which prompts reading of the stored content in the IC circuit part 150 of the RFID circuit element To. When it is a signal other than the reading signal, the determination is not satisfied and the operation returns to step S605 and the same procedure is repeated.
FIG. 10 is a diagram showing a more specific example of the data structure stored in the IC circuit part 150. In FIG. 10, a data structure substantially corresponding to the example shown in FIG. 9C is shown in this example. First, at the beginning of the data, the tag ID expressed in eight bits (�12� in this example) is stored.
Next, that corresponding to the device information (device type ID)+operation information is stored. In this example, as the device type ID including operation information, the eight-bit corresponding table (however, the last two bits are unused) is prepared in advance as shown schematically. The first bit is a bit (b7) that indicates whether or not the projection operation by the projector is allowed, the second is a bit (b6) that indicates whether or not all of the operations (printing, copying, etc.) by the printer is allowed, the third is a bit (b5) that indicates whether or not only the printing operation (except for copying) by the printer is allowed, the fourth is a bit (b4) that indicates whether or not the transmission operation by the facsimile is allowed, the fifth is a bit (b3) that indicates whether or not all of the operations (listing, editing, etc.) by a personal computer are allowed, the sixth is a bit (b2) that indicates whether or not only the listing (except for editing) by the personal computer is allowed, and the last two bits (b1, b0) are not used. In this manner, the device and operation whose bit is �1� are allowed in terms of the data, and in this example, b7 bit and b5 bit are �1�, that is, for the electronic file relating to the tag card 1, projection by the projector and printing by the printer are specified as executable processing and devices and �C0� (in hexadecimal notation) corresponding to the arrangement �10100000� is included as data.
Following this, the address information (in this example, the file name is included) of the electronic file is stored. First, an IP address is recorded and in this example, �0A 7B 9C 27�, which is the address �10. 123. 156. 39� (in decimal notation) expressed in hexadecimal notation, is included. Following this, a file name is recorded, and in this example, �70 61 74 65 6E 74 2E 64 61 74�, which is the name �patent.dat� is expressed in hexadecimal notation, is included.
Following this, �0D� indicative of the termination at which the address information of the file ends is recorded and the rest is filled with �000 . . . 00� recorded therein.
FIGS. 13A to 13C are diagrams each showing an example of a display screen displayed on the terminal 5 (or on the display means of the tag card producing apparatus 300. This applies hereinafter.) in step S705 in FIG. 12 described above. In the example in FIG. 13, a file �ABC.DEF� is selected (refer to FIG. 13B) from among a plurality of files including �ABC.DEF�, �1123.456�, �GHI.JKL�, and �789.012� (refer to FIG. 13A) and an �OK� button is pressed to fix the file (FIG. 13C).
FIG. 14A is a diagram showing an example of a display screen displayed on the terminal 5 (or on the display device of the tag card producing apparatus 300. This applies hereinafter.) in step S715 in FIG. 12 described above. In the example in FIG. 14A, �Projector� and �Printer (copy prohibited)� are selected (their check boxes are checked) from among a list of information of a plurality of devices for communicating with a RFID tag (with information about operation) including �Projector�, �Printer�, �Printer (copy prohibited)�, �FAX�, �Personal computer (edition unavailable)�, and �Personal computer (edition available)� (refer to FIG. 14A).
FIG. 14B is a diagram showing an example of a display screen displayed on the terminal 5 (or on the display device of the tag card producing apparatus 300. This applies hereinafter.) in step S725 in FIG. 12 described above. In the example in FIG. 14B, the letters �2004 Application List� are input as the print contents.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS6201474 *Nov 18, 1998Mar 13, 2001Intermec Ip Corp.Magnetic tape storage media having RFID transpondersUS7284704 *Jun 28, 2004Oct 23, 2007International Barcode CorporationCombined electromagnetic and optical communication systemUS7549591 *Apr 3, 2006Jun 23, 2009International Barcode CorporationCombined multi-frequency electromagnetic and optical communication systemUS7566001 *Aug 18, 2004Jul 28, 2009Semiconductor Energy Laboratory Co., Ltd.IC cardUS7586397 *Apr 19, 2007Sep 8, 2009Vulcan Patents LlcInteractive radio frequency tagsUS20040047000Aug 26, 2003Mar 11, 2004Fuji Xerox., Ltd.Image processing system and image processing methodUS20040233040 *Dec 9, 2003Nov 25, 2004Kathleen LaneSecure personal RFID documents and method of useUS20080237344 *May 1, 2008Oct 2, 2008Toshimichi MasutaRfid card issuing systemJP2000187715A Title not availableJP2002120475A Title not availableJP2004086708A Title not availableJP2004330708A Title not availableJP2005011161A Title not availableJP2005025240A Title not availableJP2005049957A Title not availableJP2005059577A Title not availableWO2006098368A1Mar 15, 2006Sep 21, 2006Mika AndoWireless tag, wireless communication device, wireless communication system and wireless tag manufacturing apparatus* Cited by examinerNon-Patent CitationsReference1Japan Patent Office, Notice of Reasons for Rejection for Japanese Patent Application No. 2005-077452 (counterpart to above-captioned patent application), mailed Nov. 15, 2010.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS20120208461 *Feb 10, 2012Aug 16, 2012Samsung Electronics Co. Ltd.Mobile device and method for performing function based on short-range communication* Cited by examinerClassifications U.S. Classification340/572.1, 340/10.1, 340/539.1, 340/568.1, 340/13.26International ClassificationG08B13/14Cooperative ClassificationG03B21/00, H01Q1/22European ClassificationH01Q1/22, G03B21/00Legal EventsDateCodeEventDescriptionAug 12, 2008ASAssignmentOwner name: BROTHER KOGYO KABUSHIKI KAISHA, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OHASHI, TSUYOSHI;KOKETSU, MITSUAKI;YASUI, KUNIHIRO;AND OTHERS;REEL/FRAME:021376/0437;SIGNING DATES FROM 20071030 TO 20071105Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OHASHI, TSUYOSHI;KOKETSU, MITSUAKI;YASUI, KUNIHIRO;AND OTHERS;SIGNING DATES FROM 20071030 TO 20071105;REEL/FRAME:021376/0437RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google