Deactivatable By Means Other Than Mere Removal Patents (Class 340/572.3)
  • Patent number: 8334754
    Abstract: To improve communication between tags by causing a mobile object having a RFID tag attached to transmit an interrogating wave only when moving in a communication range to reduce power consumption and prevent occurrence of tag confusion. By acquiring two Doppler signals from 2-frequency transmission waves (CW) with different frequencies and respective reflected waves and detecting phase difference from the Doppler signals, a cargo (21A) is detected to be moving in the communication range (A). Only when the movement is detected, a reader-writer (1A) transmits the interrogating wave (RW).
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: December 18, 2012
    Assignee: Omron Corporation
    Inventors: Hirokazu Kasai, Takehiro Kawai
  • Patent number: 8334755
    Abstract: Provided is a method and apparatus for recognizing a radio frequency identification tag reader. In order to obtain protocol addresses of a plurality of radio frequency identification (hereinafter referred to as RFID) tag readers, a request message including a timestamp indicating a generation time is generated and transmitted, and a response message for the request message from one of the plurality of RFID readers is received. When the timestamp included in the response message satisfies a set condition, a hardware address and a protocol address of the RFID reader are extracted from the response message.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: December 18, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jee Sook Eun, Hee Sook Mo, Hyochan Bang, Se Won Oh, Jae Gak Hwang, Cheol Sig Pyo, Jong-Suk Chae
  • Patent number: 8325018
    Abstract: Methods and apparatus for providing security for mobile devices are disclosed. In one embodiment, a method includes maintaining responsibility for a first item when the first item is in a first range of a first container. Maintaining responsibility for the first item includes monitoring a locator tag associated with the first item when the locator tag is within the first range. The method also includes determining when the first item is in the first range, determining if the first item is in a second range associated with a second container when the first item is not in the first range, and determining if the second container is trusted with respect to the first container if the first item is in the second range. Additionally, the method includes transferring responsibility for the first item to the second container if the second container is trusted with respect to the first container.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: December 4, 2012
    Assignee: Cisco Technology, Inc.
    Inventor: Philip J. S. Gladstone
  • Patent number: 8319644
    Abstract: Tag data stored in a specific RFID tag is stored in a specific-data storing unit. Tag data is read from an RFID tag present in a communication area by an RFID reader through radio communication according to detection of a specific object by a sensor for detecting the object. When tag data same as the tag data stored in the specific-data storing unit is not included in the tag data read by the RFID reader, the read tag data is transmitted to a host apparatus.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: November 27, 2012
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Takeshi Shimazaki
  • Patent number: 8319640
    Abstract: A system, method, and apparatus for monitoring and detecting movement of components of a shipping container latch. A latch monitor may embody an electromagnetic sensing unit and a nearby magnet or light emitter for measuring and characterizing the profile of a nearby electromagnetic field. The field profile is monitored to detect a change in the profile, log the change, and report any abnormal disturbance to the electromagnetic field, indicating a breach of the integrity of a latching mechanism on a shipping container. An alert of a breach event may be sent via a communication network to an authority for response. The invention can distinguish authorized, incidental, and tampering events, and also store and upload an electronic manifest for a shipping container.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: November 27, 2012
    Assignee: N7 Systems, LLC
    Inventors: John McGinnis, Michael E. Rader
  • Patent number: 8310345
    Abstract: In contactless communication in which a carrier wave transmitted from a first antenna of a host is received via a second antenna of a terminal and the carrier wave is amplitude-modulated on the terminal to transmit data to the host, a carrier wave detected from the first antenna is amplitude-demodulated to obtain a first demodulated output, and phase information included in the carrier wave detected from the first antenna is extracted and the extracted phase information is decoded to obtain a second demodulated output. Then, either of the first and second demodulated outputs is selected and output. Even when a null is caused by an antenna distance between a PCD and a PICC, demodulated data is reliably obtained by utilizing demodulation processing that uses phase information.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: November 13, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Daisuke Ide
  • Patent number: 8305193
    Abstract: Devices and methods of preventing data transfer between an RFID reader and an RFID device to be protected, are provided. An example of an embodiment of an RFID signal capture device includes a container, a signal capture circuit configured to substantially disrupt the signal provided by the RFID reader when the RFID signal capture device is positioned to protect the RFID device, and an interrogation indicator configured to indicate to a user of the RFID device that an unauthorized RFID reader is attempting to interrogate the RFID device when the RFID signal capture device is positioned in close proximity to the RFID device to provide protection thereto and when the RFID reader is producing the interrogation signal.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: November 6, 2012
    Assignee: Curio Ltd.
    Inventors: Gregory L. Horne, James C. Adams
  • Publication number: 20120274467
    Abstract: A method to deactivate a security measure includes applying a first covert optically active security marker to a product or document; completing a transaction for the product or document; and applying a second optically active security marker to the product or document which indicates completion of the transaction.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 1, 2012
    Inventors: Thomas D. Pawlik, Myra T. Olm, Judith A. Bose
  • Patent number: 8297519
    Abstract: The present invention relates to a flexible packaging arrangement for use with security devices. The flexible packaging may include an packet or sleeve in which a plurality of overlapping perforations or cuts may be used to break or render the security device inoperable after repeated bends or application of force to the flexible package to thereby protect the privacy of the consumer and to prevent inadvertent triggering of an alarm system after a legitimate purchase of the device.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: October 30, 2012
    Assignee: Avery Dennison Corporation
    Inventor: Heiko Tiedmann
  • Patent number: 8289168
    Abstract: An RFID anti-theft tag structure is disclosed. The RFID anti-theft tag structure includes a first protective layer, a paper sheltering layer, a permanent-magnetic alloy film, an RFIC, a sticky film, at least one alloy sheet, and a second protective layer sequentially disposed one on another from bottom to upper side. The alloy sheet can be repetitively magnetized and demagnetized. The permanent-magnetic alloy film and the alloy sheet are thus combined for cooperatively achieving the anti-theft function. The permanent-magnetic alloy film is divided into two independent portions, which are electrically coupled to the RFIC for serving as an antenna of the RFIC so as to achieve the RFID function. In such a way, the RFID anti-theft tag structure of the present invention integrally attains the anti-theft tag function and the RFID function, saves production cost and improves the convenience of use.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: October 16, 2012
    Inventors: Tai-Hua Liu, Yi-Chun Sung
  • Patent number: 8274389
    Abstract: A disposable and tamper-resistant RFID lock that employs an RFID tag. Use of tamper evident housing. Disabling an RFID tag contained in the housing cutting, crushing, or puncturing the RFID tag.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: September 25, 2012
    Inventor: Charles Michael Teeter
  • Patent number: 8264359
    Abstract: The present invention relates to methods of making capacitors for use in surveillance/identification tags or devices, and methods of using such surveillance/identification devices. The capacitors manufactured according to the methods of the present invention and used in the surveillance/identification devices described herein comprise printed conductive and dielectric layers. The methods and devices of the present invention improve the manufacturing tolerances associated with conventional metal-plastic-metal capacitor, as well as the deactivation reliability of the capacitor used in a surveillance/identification tag or device.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: September 11, 2012
    Assignee: Kovio, Inc.
    Inventors: Vivek Subramanian, Patrick Smith, Vikram Pavate, Arvind Kamath, Criswell Choi, Aditi Chandra, James Montague Cleeves
  • Patent number: 8258928
    Abstract: An RFID tag is provided. The RFID tag includes an emitting module, a temperature detecting circuit and a tag chip. The temperature detecting circuit produces a time signal according to a surrounding temperature, wherein the time signal changes with the surrounding temperature. The tag chip is electrically connected to the temperature detecting circuit and the emitting module, wherein the time signal is transmitted via the emitting module.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: September 4, 2012
    Assignee: National Taiwan University of Science and Technology
    Inventor: Yao-Yi Tseng
  • Patent number: 8253569
    Abstract: The apparatus of the present invention are directed to a selectively accessible electromagnetically resonant data storage element (implemented as a resonant tag, card, embedded element and/or similar devices), for inventory and facility control and management, for product tracking during transportation, for security purposes (e.g., personal identification (e.g., passports, driver's licenses, alien registration cards), access control, etc.), and to facilitate various forms of electronic information interchange (for example in electronic commerce, such as payment cards, etc.), that is selectively responsive to predetermined electromagnetic interrogation thereof, that comprises a novel membrane switch component for enabling a user to selectively enable and/or disable interrogatory access to the resonant component, to protect from unauthorized interrogation thereof.
    Type: Grant
    Filed: July 12, 2009
    Date of Patent: August 28, 2012
    Inventor: Yu Yung Choi
  • Patent number: 8255154
    Abstract: A system, method, and computer program product are provided for social networking utilizing a vehicular assembly. In operation, a vehicular assembly is utilized to communicate with a mobile device. Information about social contacts is received, utilizing the mobile device. Further, the information about social contacts is displayed, utilizing the vehicular assembly.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: August 28, 2012
    Assignee: Boadin Technology, LLC
    Inventor: Kevin J Zilka
  • Patent number: 8253568
    Abstract: The apparatus of the present invention are directed to a selectively accessible electromagnetically resonant data storage element (implemented as a resonant tag, card, embedded element and/or similar devices), for inventory and facility control and management, for product tracking during transportation, for security purposes (e.g., personal identification (e.g., passports, driver's licenses, alien registration cards), access control, etc.), and to facilitate various forms of electronic information interchange (for example in electronic commerce, such as payment cards, etc.), that is selectively responsive to predetermined electromagnetic interrogation thereof, that comprises a novel membrane switch component for enabling a user to selectively enable and/or disable interrogatory access to the resonant component, to protect from unauthorized interrogation thereof.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: August 28, 2012
    Inventor: Yu Yung Choi
  • Publication number: 20120212343
    Abstract: A system and method for automatically deactivating a security tag upon entry into business establishment to prevent tag pollution. The system and method involve positioning a security tag deactivator at an entrance of a business establishment and emitting an EM field sufficient to deactivate any security tag that enters into the business establishment.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 23, 2012
    Applicant: CHECKPOINT SYSTEMS, INC.
    Inventors: Lothar Grunenberg, Nimesh Shah, Kefeng Zeng
  • Patent number: 8249731
    Abstract: A system to control energy consumption in a building having a plurality of rooms with a wireless data transceiver; an occupancy sensor; a temperature sensor; a processor coupled to the wireless data transceiver, the occupancy sensor and the temperature sensor; and an air register including a motor coupled to the processor, the motor opening or closing one or more air vents in response to sensed motion or room temperature.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: August 21, 2012
    Inventors: Alexander Bach Tran, Alan An-Thuan Tran, Bao Q. Tran
  • Patent number: 8242910
    Abstract: A security tag assembly and security system associated therewith to prevent the unauthorized removal of merchandise from a given area, such as a retail establishment. The security tag assembly comprises a base and at least one attachment member removably connected in an operative position on the merchandise being protected. A locking assembly including a locking member is structured to restrict detachment of the attachment member and is forcibly disposed out of movement restricting relation to said connector member when the base and the attachment member are separated. A detachment assembly and a data registering processor may include a two-way communication link which facilitates processing of the merchandise data disposed on the security tag assembly, such that the purchasing of the merchandise and the removal of the security tag assembly can be effectively accomplished without jeopardizing the security of the merchandise being sold.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: August 14, 2012
    Inventors: Johan Skjellerup, Eddie L. Stenild
  • Patent number: 8237549
    Abstract: Embodiments of systems, combinations, devices and methods of enhanced Radio Frequency Identification (“RFID”) protection are provided. An embodiment of a combination of a separate RFID device and a separate RFID blocking device each adapted to be positioned separately into a container includes a separate RFID device adapted to be positioned in the container a separate RFID blocking device adapted to be positioned adjacent the separate RFID device and in the container so that when an unauthorized RFID interrogation device attempts to read the separate RFID device from within the container the separate RFID blocking device positioned adjacent the separate RFID device blocks the attempted read and so that when an authorized user desires to use the separate RFID device for an authorized read the authorized user selectively removes either the separate RFID device or the separate RFID blocking device and presents the separate RFID device for the authorized read.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: August 7, 2012
    Assignee: Curio Ltd.
    Inventor: Gregory L Horne
  • Patent number: 8228175
    Abstract: RFID tags, ICs for RFID tags, and methods are provided. In some embodiments, an RFID tag includes a memory with multiple sections, and a processing block. The processing block may map one of these sections, or another of these sections, for purposes of responding to a first command from an RFID reader. As such, an RFID tag can operate according to the data stored in the section mapped at the time. In some embodiments, a tag can even transition from mapping one of the sections to mapping another of the sections. This can amount to the tag exhibiting alternative behaviors, and permits hiding data on the tag.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: July 24, 2012
    Assignee: Impinj, Inc.
    Inventors: Christopher J. Diorio, Theron Stanford, Scott A. Cooper, Chad A. Lindhorst, Kambiz Rahimi, Harley K. Heinrich, Gregory T. Kavounas
  • Patent number: 8228199
    Abstract: Systems, tags and methods for disabling transponders used in electronic toll collection or other RFID systems, wherein the transponders include an antenna and RFID circuitry. The transponders can be selectively disabled by positioning (e.g., pivotably moving) a disabling member having a metallic portion to an operative position over the antenna of the RFID system, whereupon the metallic portion is coupled to the antenna in such a manner as to disable the RFID circuitry so long as the disabling member is at the operative position. The RFID circuitry is arranged to be automatically enabled upon removal of the disabling member from the operative position (e.g., pivoting the disabling member back to an inoperative position).
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: July 24, 2012
    Assignee: Amtech Systems, LLC
    Inventors: Scott Noakes, Kelly Gravelle
  • Patent number: 8223022
    Abstract: A security tag assembly and security system associated therewith to prevent the unauthorized removal of merchandise from a given area, such as a retail establishment. The security tag assembly comprises a base and at least one tag member removably connected in an operative position on the merchandise being protected. A locking assembly is structured to restrict detachment of the tag member and is forcibly disposed out of a locking orientation relative to said tag member. A detachment assembly and a data registering processor may include a two-way communication link which facilitates processing of the merchandise data disposed on the security tag assembly, such that the purchasing of the merchandise and the removal of the security tag assembly can be effectively accomplished without jeopardizing the security of the merchandise being sold.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: July 17, 2012
    Inventors: Johan Skjellerup, Eddie L. Stenild
  • Patent number: 8222999
    Abstract: A commodity display position alert system includes commodity display shelves set in a selling floor space of a store, an RFID reader provided in each of the commodity display shelves, and a server as a system control unit. The RFID reader reads a commodity code from an RFID tag attached to a commodity. A server compares the commodity code of the commodity and display permission information stored in a database functioning as a shelf-rule storing unit and determines whether the read commodity code is a commodity code of a commodity that should be displayed on the commodity display shelf. When the server determines that a commodity other than the commodity that should be displayed on the commodity display shelf is displayed on the commodity display shelf, the server performs control for outputting a reporting signal for causing the PDA terminal to perform reporting operation.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: July 17, 2012
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Kenya Hiramatsu, Akio Hiruma, Kenji Shimizu
  • Patent number: 8212677
    Abstract: Systems, apparatuses, and methods for tracking the status and use of packaged goods are provided. The systems of the invention coordinate various stakeholders, hardware devices, computer software systems, standards, methods, procedures, practices and their interconnection in ways that lead to greater efficiency, safety, and efficacy, along with potentially lower cost, and less waste in the delivery of packaged goods and their use. In one aspect a Medication Management System (“MMS”) that tracks the status of packaged medications and patient compliance is also provided.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: July 3, 2012
    Inventor: Alexander Ferguson
  • Patent number: 8198987
    Abstract: A radio tag reading device has a target tag storage unit, a non-target storage unit, and an antenna. The target tag storage unit stores the tag data of any radio tag held in a section from which to read data. The non-target storage unit stores at least the identification data of any radio tag existing outside sections and sections that surround the section. The target tag storage unit stores all tag data read from radio tags via the antenna, except the tag data containing the identification data stored in the non-target tag storage unit.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: June 12, 2012
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Yuji Iida
  • Patent number: 8193912
    Abstract: RFID tags are configured to adjust their clock frequency in order to meet predefined limits for reply frequencies to conserve tag power. A deviation of computed tag reply frequency from a reader commanded reply frequency is used to determine an adjustment to the tag clock frequency. The tag clock frequency may be adjusted during backscatter and restored once backscattering is completed.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: June 5, 2012
    Assignee: Impinj, Inc.
    Inventors: Vadim Gutnik, Scott A. Cooper, John D. Hyde
  • Patent number: 8179233
    Abstract: A participatory athletic event timing system based on backscattering modulation in the UHF band and including wirelessly encoding writable data tags with participant's bib numbers or a calculated derivative thereof for timing participants in a participative athletic event, and attaching the data tags to the participant's bibs for distribution of the bibs and data tags to participants so as to eliminate the need for matching data tags with bibs and maintaining the sequenced order of the matched data tags and bibs. In a preferred embodiment, when participants register for the event, they are assigned an ID number and a bib printed with that number and having attached to the bib one or more data tag encoded in the tags memory the ID number or a calculated derivative thereof. Before the start of the event, the athlete pulls the data tag from the bib and attaches it to their shoe.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: May 15, 2012
    Inventor: Arash Kia
  • Publication number: 20120112912
    Abstract: A method and system for deactivating locks, locking the functionality of products and/or the product packing in which such products are sold, in particular remote-activation adhesive locks
    Type: Application
    Filed: November 4, 2011
    Publication date: May 10, 2012
    Applicant: ProTeqt Technologies, Inc.
    Inventor: John S. Berg
  • Patent number: 8174387
    Abstract: A universal tracking assembly that is capable of supporting more than one protocol used in electronic article surveillance (EAS) labels. The universal tracking assembly includes an acousto-magnetic (AM) EAS portion with a Radio Frequency (RF) EAS portion. The intrinsic characteristics and properties of the components of these individual labels are utilized to enhance the overall performance and utility of the combined EAS universal tracking assembly.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: May 8, 2012
    Assignee: United Security Applications ID, Inc.
    Inventor: Paul R. Arguin
  • Patent number: 8174388
    Abstract: A combination Electronic Article Surveillance/Radio Frequency Identification (“EAS/RFID”) tag and method and system for deactivating said combination EAS/RFID tags without the need to physically contact the tag with a deactivation device. The EAS/RFID tag replaces the conventional diode with a non-linear device such as a capacitor with a given breakdown voltage threshold. Inducing a predetermined voltage across the capacitor results in destruction of the capacitor rendering the EAS/RFID tag undetectable in the interrogation systems.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: May 8, 2012
    Assignee: Sensormatic Electronics, LLC
    Inventors: Ming-Ren Lian, Richard Loyd Copeland
  • Patent number: 8169321
    Abstract: Embodiments of the invention provides a method, device, and system for programming an electromigration fuse (eFuse) using a radio frequency (RF) signal. A first aspect of the invention provides a method of testing circuitry on a semiconductor chip, the method comprising: receiving a radio frequency (RF) signal using at least one antenna on the semiconductor chip; powering circuitry on the semiconductor chip using the RF signal; activating a built-in self test (BIST) engine within the circuitry; determining whether a fault exists within the circuitry using the BIST; and programming an electromigration fuse (eFuse) to alter the circuitry in response to a fault being determined to exist.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: May 1, 2012
    Assignee: International Business Machines Corporation
    Inventors: Subramanian S. Iyer, Chandrasekharan Kothandaraman, Gerard M. Salem
  • Patent number: 8159367
    Abstract: A method and apparatus for validating a distance output of a phase ranging RFID location system, based upon the phase readings included in data sets obtained from monitoring reply signals corresponding to interrogation signals at multiple frequencies and a common interrogation signal beam direction; by comparison of measured phase and frequency data sets with theoretical phases calculated with respect to the same frequencies over a range of positions corresponding to a beam extent of the interrogation signal. The distance output validated by comparison with theoretical threshold data processed to generate an extreme values distribution from which a cumulative distribution function is extracted and against which a confidence level is applied.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: April 17, 2012
    Assignee: RF Controls, LLC
    Inventors: Russell Hofer, Graham P. A. Bloy
  • Patent number: 8149120
    Abstract: A radio frequency identification (RFID) tag may have a non-responsive mode, triggered by a command from an RFID reader, that temporarily prevents the RFID tag from responding to a query from any RFID reader for a period of time. In some embodiments this non-responsive mode may automatically end after a certain period of time without further action by the RFID reader. In other embodiments this non-responsive mode may end when directed to by another command addressed specifically to the RFID tag.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: April 3, 2012
    Assignee: Intel Corporation
    Inventors: Joshua D. Posamentier, Joshua R. Smith
  • Patent number: 8144017
    Abstract: An RFID transponder having an adjustable response field strength including a determination circuit formed to determine a quantity which is derivable from a field strength of an electromagnetic field prevailing at the location of the RFID transponder, a comparator formed to compare the determined quantity derived from the field strength with a threshold value, wherein the threshold value is based on the adjustable response field strength, which is higher than the minimum field strength required for the operation of the RFID transponder, and a deactivator formed to deactivate a functionality of the RFID transponder if the derived quantity falls below the threshold value.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: March 27, 2012
    Assignee: Infineon Technologies AG
    Inventors: Thomas Leutgeb, Josef Haid, Walter Kargl, Josef Riegebauer, Thomas Baglin, Albert Missoni, Dietmar Scheiblhofer, Bernd Zimek, Friedrich Skofitsch, Markus Unterlercher, Robert Hofer
  • Patent number: 8138921
    Abstract: A method for reliable deactivation of a security (EAS) tag, and an apparatus for accomplishing the same. The method generally includes placing a security tag a first distance from a deactivation apparatus; determining whether a deactivation confirmation signal has occurred; and when it is determined that the deactivation confirmation signal did not occur, placing the security tag closer to the deactivation apparatus.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: March 20, 2012
    Assignee: Kovio, Inc.
    Inventors: James Montague Cleeves, Vivek Subramanian
  • Patent number: 8138893
    Abstract: In an IC tag, when a semiconductor integrated circuit device is activated, an operation control unit sets existence/nonexistence of a communication distance limitation for reducing a communication distance to a state management unit. If the communication distance limitation is not set, a switch unit is turned ON and a demodulated command is inputted from a command demodulation circuit to a command decode unit. If the communication distance limitation is set, a power intensity monitor unit judges whether the power of a rectification circuit is greater than or equal to a predetermined arbitrary field intensity. If the power is less than the predetermined arbitrary field intensity, the switch unit is turned OFF and various commands demodulated by the command demodulation circuit are not inputted to the command decode unit. As a result, the semiconductor integrated circuit device does not operate.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: March 20, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Takefumi Endo, Takayuki Tsukamoto
  • Patent number: 8138922
    Abstract: Deactivating a data tag attached to packaging for user privacy or tamper-evident reasons. Each of a plurality of data tags stores identification information. At least one of the data tags is removable and capable of wireless signal transmission at a first range such that removal of the data tag substantially prevents communication of the identification information via the removed data tag and permits communication of the identification information via another data tag at a second range relatively smaller than the first range.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 20, 2012
    Assignee: Binforma Group Limited Liability Company
    Inventors: Jeffrey D. Lindsay, Herb Flores Velazquez, Fung-Jou Chen, Eric Francis Wagner
  • Patent number: 8138923
    Abstract: Embodiments of an RFID security system and method are described herein. Embodiments include an RFID security server or appliance and RFID security software. In an embodiment, the RFID security server is placed between an RFID reader and an enterprise back-end. Thus the system operates at the point where the RFID data stream leaves the RF interface and enters a physical transmission medium before any other active components on the network (such as databases, middleware, routers). The RFID security server analyzes RFID tag data (including meta-data) received from the reader in-band and detects malware and errors in the data. RFID tag data containing malware or errors is blocked from entering the enterprise back-end. In an embodiment, analyzing RFID tag data includes generating a security stamp that is uniquely associated with the tag data. The security stamp is stored on the RFID tag, or alternatively, stored separately for later comparison in order to detect tampering.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: March 20, 2012
    Assignee: Neocatena Networks Inc.
    Inventors: Lukas Grunwald, Boris Wolf
  • Patent number: 8130103
    Abstract: A method of reducing power consumption of a radio badge in a boundary detection localization system is disclosed, in which the radio badge is carried by a tracked target and performs location sampling communication with an infrastructure component of the localization system at the start and end of sampling time intervals such that positions of the radio badge can be estimated. The method includes: determining a velocity of the radio badge; estimating a critical time for the radio badge to reach a critical region through division in which a critical distance from an estimated position obtained at the end of a most recent sampling time interval to the critical region is the dividend, and the velocity of the radio badge is the divisor; and controlling the radio badge to perform location sampling communication with the infrastructure component of the localization system at the end of the critical time.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: March 6, 2012
    Assignee: National Taiwan University
    Inventors: Polly Huang, Tsung-Han Lin, Hao-Hua Chu
  • Patent number: 8125341
    Abstract: A resonant circuit for use with a radio-wave detection system for the prevention of shoplifting or the like, which is formed on a flexible substrate and has a coil and capacitor circuit whereby the capacitor has an indented area in the dielectric of the capacitor to promote disablement of the circuit when exposed to a strong electromagnetic field. Upon exposure to a strong electromagnetic field, an electrical short forms across the dielectric of capacitor in the indented area. Because the short is fragile and can be opened by flexure of the circuit, an island of reinforcing material is formed in the indented area, such that when the substrate is flexed, the indented area remains rigid to protect the short. The indented area can be further stress-relieved by introducing a gap in the conductors forming the capacitor plates.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: February 28, 2012
    Assignee: Checkpoint Systems, Inc.
    Inventors: Seth Strauser, Charles Iacono, Gary Mazoki, Anthony Piccoli, Hideki Imaichi
  • Patent number: 8120487
    Abstract: A power-saving wireless input device and an associated system are included. The wireless input device comprises an antenna, an RFID transponder, an energy-storing unit, and a sensing unit. The RFID transponder receives an AC signal via the antenna, and converts the AC signal into a DC signal. The energy-storing unit receives the DC signal for charging. The sensing unit, which is powered by the energy-storing unit, generates an input signal to the RFID transponder. The RFID transponder demodulates the AC signal to generate a request signal, and performs load modulation according to the input signal to generate a reply signal in response to the request signal. The reply signal is then transmitted via the antenna.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: February 21, 2012
    Assignee: MStar Semiconductor, Inc.
    Inventors: Wei Chang, Chien-Sheng Chen
  • Publication number: 20120038480
    Abstract: An integrated data reader and electronic article surveillance (EAS) system, and methods of operation. Several configurations are also disclosed for alternate deactivation coil designs and mounting schemes.
    Type: Application
    Filed: October 24, 2011
    Publication date: February 16, 2012
    Applicants: Sensormatic Electronics, LLC, Datalogic Scanning, Inc.
    Inventors: Matthew J. Friend, Douglas A. Drew, Ronald B. Easter, Gerardo Aguirre, Garrett J. Barnum, David J. Newman
  • Patent number: 8115636
    Abstract: A radio-frequency identification (RFID) tag is provided that comprises an RFID inlay having a read range. The RFID tag also comprises a facestock or substrate affixed to the RFID inlay. The RFID tag further comprises a radio frequency (RF) altering material affixed to the facestock or substrate that is configured to permanently reduce the read range of the RFID inlay.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: February 14, 2012
    Assignee: Avery Dennison Corporation
    Inventor: Ian James Forster
  • Patent number: 8115597
    Abstract: The present disclosure provides a power rectifier for a Radio Frequency Identification tag circuit. The rectifier is constructed from a pair of complementary MOS transistors. Gates of the transistors have predetermined voltages applied to them. The applied voltages bias the transistors to near their active operating region. During the same time additional control signals are applied to the gates of the transistors, the control signals are synchronous, but out of phase, with each other.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: February 14, 2012
    Assignee: Impinj, Inc.
    Inventors: Ronald A. Oliver, John D. Hyde, Charles J. T. Peach
  • Patent number: 8115595
    Abstract: An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: February 14, 2012
    Assignee: LG Electronics Inc.
    Inventors: Seung Hyup Ryoo, Jin Tae Kim, Sang Cheol Min, Hee Seung Kim, Jae Joon Park, Dong Hyun Lee, Yong Sam Kim
  • Patent number: 8115596
    Abstract: A method and system for controlling distant equipment. A passive radio frequency identification (RFID) tag within a Programmable Secure Remote Controller (PSRC) receives a radio frequency (RF) signal from a transmitter integrated in the distant equipment. The distant equipment is external to and remote from the PSRC. The PRSC does not include an internal source of energy and requires energy from an external source to operate. The PSRC is configured to distribute sufficient energy from the RF signal to components of the PSRC to enable the components to operate. The RFID tag is activated to generate information and the information is decoded to identify the distant equipment. A request to perform an operation that controls the distant equipment is received. After the request is received, a first predefined scenario is activated for performing the operation that controls the distant equipment.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: February 14, 2012
    Assignee: Intermational Business Machines Corporation
    Inventor: Arnaud Lund
  • Patent number: 8102243
    Abstract: Devices and methods of preventing data transfer between an RFID reader and an RFID device to be protected, are provided. An example of an embodiment of an RFID signal capture device includes a container, a signal capture circuit configured to substantially disrupt the signal provided by the RFID reader when the RFID signal capture device is positioned to protect the RFID device, and an interrogation indictor configured to indicate to a user of the RFID device that an unauthorized RFID reader is attempting to interrogate the RFID device when the RFID signal capture device is positioned in close proximity to the RFID device to provide protection thereto and when the RFID reader is producing the interrogation signal.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: January 24, 2012
    Assignee: Curio Ltd.
    Inventors: Gregory L. Horne, James C. Adams
  • Patent number: 8094026
    Abstract: A method for using electronic product identification devices to track the purchase or theft of any multiple merchandise items in a food store or other retail shopping store environment, to determine if a large quantity of items are in the process of being stolen, to activate an alarm condition in a surveillance camera system, alert store security, and send tag information (list of stolen contents thereof) and a video clip file or URL of a web site link to view a video file to store security using remote mobile devices, and to law enforcement if desired.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: January 10, 2012
    Inventor: Robert M Green
  • Patent number: RE43809
    Abstract: A system and method are provided for allowing users to verify the presence of personal items. RFID tags are attached to personal items, and the items are entered into a list. The user makes travel lists from the list of items. When traveling, the user queries the system to determine whether all personal items in the travel list are within range of the system. The system checks for the presence of the RFID tags associated with the items in the travel list. If any RFIDs are not present, the user is alerted. Optionally, the system updates the last known location of items whenever checking for the presence of personal items, so that if an item is not found the user can determine where the item was last known to have been.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: November 20, 2012
    Assignee: Alcatel Lucent
    Inventor: Zlatko Krstulich