Patents by Inventor Richard Loyd Copeland

Richard Loyd Copeland has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electronic article surveillance tag deactivation
    Patent number: 9305447
    Abstract: A method and system for producing an electromagnetic field that exhibits a strong near field that is sufficient to deactivate an electronic article surveillance, EAS, tag and a weak far field that is insufficient to deactivate the EAS tag are disclosed. According to one embodiment, two half-wavelength dipoles spaced apart by about a half-wavelength are excited by oppositely phased signals.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: April 5, 2016
    Assignee: Tyco Fire & Security GmbH
    Inventors: Richard Loyd Copeland, Ming-Ren Lian
  • ELECTRONIC ARTICLE SURVEILLANCE TAG DEACTIVATION
    Publication number: 20140159901
    Abstract: A method and system for producing an electromagnetic field that exhibits a strong near field that is sufficient to deactivate an electronic article surveillance, EAS, tag and a weak far field that is insufficient to deactivate the EAS tag are disclosed. According to one embodiment, two half-wavelength dipoles spaced apart by about a half-wavelength are excited by oppositely phased signals.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Applicant: SENSORMATIC ELECTRONICS, LLC
    Inventors: Richard Loyd COPELAND, Ming-Ren LIAN
  • Method and system for deactivation of combination EAS/RFID tags
    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
  • Switchable patch antenna for RFID shelf reader system
    Patent number: 8106834
    Abstract: A switchable patch antenna includes a ground plane, a metal patch, at least two feed lines and a switch. The metal patch is positioned adjacent, but not in contact with, the ground plane. Each feed line is electrically connected to the metal patch. Each feed line is substantially orthogonal to at least one other feed line. The switch is electrically connected to the at least two feed lines. The switch is operable to sequentially select between the at least two feed lines for exciting the switchable patch antenna.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: January 31, 2012
    Assignee: Sensormatic Electronics, LLC
    Inventor: Richard Loyd Copeland
  • Metal oxide semiconductor device for use in UHF electronic article surveillance systems
    Patent number: 8013742
    Abstract: An Electronic Article Surveillance (“EAS”) tag and method and system for deactivating EAS tags without the need to physically contact the tag with a deactivation device. The EAS tag replaces the conventional diode with a non-linear device such as a metal-oxide-semiconductor (“MOS”) capacitor with a given breakdown voltage threshold. Inducing a predetermined voltage across the MOS capacitor results in destruction of the MOS capacitor rendering the EAS tag undetectable in the EAS interrogation system.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: September 6, 2011
    Assignee: Sensormatic Electronics, LLC
    Inventors: Ming-Ren Lian, Richard Loyd Copeland
  • METHOD AND SYSTEM FOR DEACTIVATION OF COMBINATION EAS/RFID TAGS
    Publication number: 20100141452
    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: Application
    Filed: May 21, 2009
    Publication date: June 10, 2010
    Applicant: SENSORMATIC ELECTRONICS CORPORATION
    Inventors: Ming-Ren Lian, Richard Loyd Copeland
  • METAL OXIDE SEMICONDUCTOR DEVICE FOR USE IN UHF ELECTRONIC ARTICLE SURVEILLANCE SYSTEMS
    Publication number: 20100141451
    Abstract: An Electronic Article Surveillance (“EAS”) tag and method and system for deactivating EAS tags without the need to physically contact the tag with a deactivation device. The EAS tag replaces the conventional diode with a non-linear device such as a metal-oxide-semiconductor (“MOS”) capacitor with a given breakdown voltage threshold. Inducing a predetermined voltage across the MOS capacitor results in destruction of the MOS capacitor rendering the EAS tag undetectable in the EAS interrogation system.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 10, 2010
    Applicant: Sensormatic Electronics Corporation
    Inventors: Ming-Ren Lian, Richard Loyd Copeland
  • SWITCHABLE PATCH ANTENNA FOR RFID SHELF READER SYSTEM
    Publication number: 20100001921
    Abstract: A switchable patch antenna includes a ground plane, a metal patch, at least two feed lines and a switch. The metal patch is positioned adjacent, but not in contact with, the ground plane. Each feed line is electrically connected to the metal patch. Each feed line is substantially orthogonal to at least one other feed line. The switch is electrically connected to the at least two feed lines. The switch is operable to sequentially select between the at least two feed lines for exciting the switchable patch antenna.
    Type: Application
    Filed: May 11, 2009
    Publication date: January 7, 2010
    Applicant: SENSORMATIC ELECTRONICS CORPORATION
    Inventor: Richard Loyd COPELAND