DE602005008306D1 - Sendesteuerung mit geschlossenem Regelkreis für einen Leistungsverstärker in einem elektronischen Artikelüberwachungssystem - Google Patents

Sendesteuerung mit geschlossenem Regelkreis für einen Leistungsverstärker in einem elektronischen Artikelüberwachungssystem

Info

Publication number
DE602005008306D1
DE602005008306D1 DE602005008306T DE602005008306T DE602005008306D1 DE 602005008306 D1 DE602005008306 D1 DE 602005008306D1 DE 602005008306 T DE602005008306 T DE 602005008306T DE 602005008306 T DE602005008306 T DE 602005008306T DE 602005008306 D1 DE602005008306 D1 DE 602005008306D1
Authority
DE
Germany
Prior art keywords
electronic article
article surveillance
power amplifier
closed loop
surveillance system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602005008306T
Other languages
English (en)
Inventor
Thomas J Frederick
Richard L Herring
Jeffrey T Oakes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sensormatic Electronics LLC
Original Assignee
Sensormatic Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sensormatic Electronics Corp filed Critical Sensormatic Electronics Corp
Publication of DE602005008306D1 publication Critical patent/DE602005008306D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2477—Antenna or antenna activator circuit
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2471—Antenna signal processing by receiver or emitter

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Burglar Alarm Systems (AREA)
  • Near-Field Transmission Systems (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Emergency Alarm Devices (AREA)
DE602005008306T 2004-05-11 2005-05-10 Sendesteuerung mit geschlossenem Regelkreis für einen Leistungsverstärker in einem elektronischen Artikelüberwachungssystem Active DE602005008306D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57003204P 2004-05-11 2004-05-11
US11/121,897 US7301459B2 (en) 2004-05-11 2005-05-04 Closed loop transmitter control for power amplifier in an EAS system

Publications (1)

Publication Number Publication Date
DE602005008306D1 true DE602005008306D1 (de) 2008-09-04

Family

ID=34936323

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005008306T Active DE602005008306D1 (de) 2004-05-11 2005-05-10 Sendesteuerung mit geschlossenem Regelkreis für einen Leistungsverstärker in einem elektronischen Artikelüberwachungssystem

Country Status (8)

Country Link
US (1) US7301459B2 (de)
EP (1) EP1596346B1 (de)
JP (1) JP4275100B2 (de)
AT (1) ATE402461T1 (de)
CA (1) CA2507033C (de)
DE (1) DE602005008306D1 (de)
ES (1) ES2310306T3 (de)
HK (1) HK1086676A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8933790B2 (en) * 2007-06-08 2015-01-13 Checkpoint Systems, Inc. Phase coupler for rotating fields
WO2008154404A2 (en) * 2007-06-08 2008-12-18 Checkpoint Systems, Inc. Dynamic eas detection system and method
US7768353B2 (en) 2008-06-13 2010-08-03 Samsung Electro-Mechanics Company, Ltd. Systems and methods for switching mode power amplifier control

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683461A (en) * 1985-09-17 1987-07-28 Allied Corporation Inductive magnetic field generator
US5103234A (en) * 1987-08-28 1992-04-07 Sensormatic Electronics Corporation Electronic article surveillance system
US4859991A (en) * 1987-08-28 1989-08-22 Sensormatic Electronics Corporation Electronic article surveillance system employing time domain and/or frequency domain analysis and computerized operation
US5239696A (en) * 1991-10-15 1993-08-24 Sensormatic Electronics Corporation Linear power amplifier utilizing current feedback
US5608758A (en) * 1992-07-15 1997-03-04 Futaba Denshi Kogyo, K.K. Radio control device having crystal high frequency module and high frequency phase lockloop for selective use, modules detachably mounted
US5742189A (en) * 1994-09-16 1998-04-21 Kabushiki Kaisha Toshiba Frequency conversion circuit and radio communication apparatus with the same
KR0168222B1 (ko) * 1995-12-27 1999-03-20 김주용 선형전력 증폭기를 사용하는 시스템에서 각 채널별 출력전력 측정 및 고주파출력 안정화회로
US5963173A (en) * 1997-12-05 1999-10-05 Sensormatic Electronics Corporation Antenna and transmitter arrangement for EAS system
US6696951B2 (en) * 2001-06-13 2004-02-24 3M Innovative Properties Company Field creation in a magnetic electronic article surveillance system
US6970518B2 (en) * 2003-03-11 2005-11-29 Motorola, Inc. Method and apparatus for electronic item identification in a communication system using known source parameters

Also Published As

Publication number Publication date
JP2005328535A (ja) 2005-11-24
ATE402461T1 (de) 2008-08-15
ES2310306T3 (es) 2009-01-01
CA2507033A1 (en) 2005-11-11
EP1596346A1 (de) 2005-11-16
US20050253719A1 (en) 2005-11-17
US7301459B2 (en) 2007-11-27
JP4275100B2 (ja) 2009-06-10
HK1086676A1 (en) 2006-09-22
CA2507033C (en) 2009-07-14
EP1596346B1 (de) 2008-07-23

Similar Documents

Publication Publication Date Title
DE60306430D1 (de) Vorrichtung und verfahren zur verwendung van strahlformung und sende-diversität mit geschlossenem regelkreis in einem mehrfachstrahl-antennensystem
TW200608719A (en) Directly modulated laser optical transmission system
ATE375638T1 (de) Wellenlängensteuerung mit dither-modulation und rückkopplung
TW200644413A (en) System-in-package wireless communication device
DE602004010140D1 (de) Unidirektionale strom- und bidirektionale datenübertragung über einer einzelnen, induktiven kopplung
HK1080224A1 (en) Method and apparatus for improving power amplifierefficiency in wireless communication systems havi ng high peak to average power ratios
ATE446615T1 (de) Stromeffiziente drahtlose mehrantenneneinrichtung
WO2006025918A3 (en) Process field device with radio frequency communication
IN266720B (de)
WO2007025037A3 (en) Method and apparatus for control of dpsk and dqpsk receivers and transmitters
EP2280371A3 (de) Schnittstelleneinheit
BR0316641A (pt) Método e equipamento para determinar um conjunto de combinações aceitáveis de fomato de transporte
WO2006031356A3 (en) Method and system for wireless digital communication
DE602006020999D1 (de) Rfid-systeme und verfahren mit infrarot-lokalisierung
HK1079351A1 (en) Method and apparatus for regulating the transmitted power in multi-rate wireless communication systems
TW200711344A (en) Ramped interrogation power levels
EP1770594A3 (de) Transponderkommunikation mittels Leckkabel-Antenne
WO2009082582A3 (en) Method and apparatus for direct digital to radio frequency conversion
HK1088123A1 (en) Methods and apparatus for arbitrary antenna phasing in an electronic article surveillance system
WO2005119939A3 (en) Tag frequency control
WO2006137868A3 (en) Pulse transmitters having multiple outputs in phase relationship and methods of operation
DE602005008306D1 (de) Sendesteuerung mit geschlossenem Regelkreis für einen Leistungsverstärker in einem elektronischen Artikelüberwachungssystem
TW200729773A (en) System and method for controlling the transmit power of a wireless module
ATE522031T1 (de) Erhöhung der leistungsfähigkeit von leistungsverstärkern bei geräten unter verwendung von sendestrahlformung
Chinchawade et al. Li-Fi Based Audio TransmissionWith Home/Office Automation System

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: HAFNER & PARTNER PATENT-/ RECHTSANWALTSKANZLEI, 90

8327 Change in the person/name/address of the patent owner

Owner name: SENSORMATIC ELECTRONICS, LLC, BOCA RATON, FLA., US