Transponders, Interrogators, systems and methods for elimination of interrogator synchronization requirement

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5541604
SERIAL NO

08117258

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A Radio Frequency Identification (RFID) system having an interrogator (12) and a transponder (14). The interrogator has a first tuned circuit (28) of a powering frequency for sending a powering burst to a transponder (14), a filter/demodulator (64) for receiving an wireless, modulated RF response from a transponder (14). The interrogator (12) further has a second tuned circuit (29) in electrical communication with a modulator (48), the second tuned circuit (29) having a selected bandwidth about a communication frequency, the selected bandwidth not substantially overlapping the powering frequency and encompassing the bandwidth of the modulated carrier of the RF response. The interrogator also has a controller (16) in electrical communication with the filter/demodulator (64) and the tuned circuits (28,29) and capable of enabling the first tuned circuit (28) to send the powering burst during a first time period and of enabling the modulator (48) in electrical communication with the second tuned circuit (29) to receive the RF response during a second time period. The transponder has a tuned circuit (34), a tuning circuit (54,56) in electrical communication with the tuned circuit (34) for modifying the frequency characteristics of the tuned circuit (34) such that it is can be tuned during the powering burst to the powering frequency and to be tuned during the RF response to the communication frequency. The transponder (14) also includes a demodulator (66) in electrical communication with the tuned circuit (34) for receiving the RF interrogation therefrom and for demodulating data from the RF interrogation.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TEXAS INSTRUMENTS DEUTSCHLAND GMBHFREISING408

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Meier, Herbert Moosburg, DE 45 1710

Cited Art Landscape

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* Cited By Examiner

Patent Citation Ranking

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7835960 System for facilitating a transaction 28 2004
8960535 Method and system for resource management and evaluation 0 2004
7768379 Method and system for a travel-related multi-function fob 1 2004
7762457 System and method for dynamic fob synchronization and personalization 5 2004
* 2005/0033,689 A SYSTEM AND METHOD FOR DYNAMIC FOB SYNCHRONIZATION AND PERSONALIZATION 47 2004
7587756 Methods and apparatus for a secure proximity integrated circuit card transactions 15 2004
* 2005/0033,688 METHODS AND APPARATUS FOR A SECURE PROXIMITY INTEGRATED CIRCUIT CARD TRANSACTIONS 119 2004
7805378 System and method for encoding information in magnetic stripe format for use in radio frequency identification transactions 17 2004
* 2004/0260,646 System and method for encoding information in magnetic stripe format for use in radio frequency identification transactions 33 2004
7996324 Systems and methods for managing multiple accounts on a RF transaction device using secondary identification indicia 20 2004
8635131 System and method for managing a transaction protocol 0 2004
8538863 System and method for facilitating a transaction using a revolving use account associated with a primary account 0 2004
7156301 Foldable non-traditionally-sized RF transaction card system and method 60 2005
7429927 System and method for providing and RFID transaction device 3 2005
7543738 System and method for secure transactions manageable by a transaction account provider 27 2005
7650314 System and method for securing a recurrent billing transaction 22 2005
8001054 System and method for generating an unpredictable number using a seeded algorithm 19 2006
9031880 Systems and methods for non-traditional payment using biometric data 1 2006
7837116 Transaction card 9 2007
7494058 Smartcard transaction method and system using voiceprint recognition 19 2007
7694876 Method and system for tracking user performance 9 2008
7793845 Smartcard transaction system and method 4 2009
8016191 Smartcard transaction system and method 30 2010
8266056 System and method for manufacturing a punch-out RFID transaction device 0 2010
8191788 Transaction card 18 2010
* 2011/0161,235 SYSTEM AND METHOD FOR SECURING RF TRANSACTIONS USING A RADIO FREQUENCY IDENTIFICATION DEVICE INCLUDING A RANDOM NUMBER GENERATOR 52 2011
 
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY (1)
8538801 System and method for processing financial transactions 10 2002
 
Presto Technologies, Inc. (1)
6400272 Wireless transceiver for communicating with tags 286 2000
 
NTT DOCOMO, INC. (1)
* 2003/0081,574 Radio base station and method of controlling radio communications 2 2002
 
TVIPR, LLC (9)
* 8280682 Device for monitoring movement of shipped goods 5 2001
* 2003/0163,287 Movement and event systems and associated methods related applications 418 2002
7174277 Product integrity systems and associated methods 103 2003
* 2005/0080,566 Product integrity systems and associated methods 15 2003
7856339 Product integrity tracking shipping label, system and associated method 2 2007
8126675 Product integrity tracking shipping label, and associated method 6 2010
8428904 Product integrity tracking system, shipping label, and associated method 7 2012
8660814 Package management system for tracking shipment and product integrity 4 2013
9267793 Movement monitoring device for attachment to equipment 1 2014
 
PROMEGA CORPORATION (19)
7258276 Radio frequency identification method and system of distributing products 61 2001
7165720 Radio frequency identification method and system of distributing products 0 2001
* 2002/0183,882 RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags 87 2002
7293705 Radio frequency identification method and system of distributing products 26 2004
* 2004/0178,264 Radio frequency identification method and system of distributing products 6 2004
7942321 Radio frequency identification method and system of disturbing products 5 2004
7735732 Radio frequency identification method and system of distributing products 6 2004
7661591 RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags 11 2004
7591421 Radio frequency identification method and system of distributing products 16 2005
7784689 Radio frequency identification method and system of distributing products 6 2006
7791479 RFID point of sale and delivery method and system 8 2006
7710275 RFID reader enclosure and man-o-war RFID reader system 6 2007
8025228 RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags 10 2007
7967199 Radio frequency identification method and system of distributing products 3 2009
8031072 RFID reader enclosure and man-o-war RFID reader system 1 2010
8113425 RF point of sale and delivery method and system using communication with remote computer and having features to read a large number of RF tags 2 2011
8231053 Radio frequency identification method and system of distributing products 1 2011
8258961 RFID reader enclosure and man-o-war RFID reader system 11 2011
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ATMEL CORPORATION (4)
* 7535362 Circuit arrangement and method for supplying power to a transponder 8 2006
* 2006/0187,049 Circuit arrangement and method for supplying power to a transponder 18 2006
* 8847737 Transponder and method for wireless data transmission 0 2011
* 2011/0177,781 Transponder and Method for Wireless Data Transmission 1 2011
* Cited By Examiner