GB1298381A - Passive labels for use in electronic surveillance systems - Google Patents
Passive labels for use in electronic surveillance systemsInfo
- Publication number
- GB1298381A GB1298381A GB8326/70A GB832670A GB1298381A GB 1298381 A GB1298381 A GB 1298381A GB 8326/70 A GB8326/70 A GB 8326/70A GB 832670 A GB832670 A GB 832670A GB 1298381 A GB1298381 A GB 1298381A
- Authority
- GB
- United Kingdom
- Prior art keywords
- array
- receiver
- electrodes
- label
- aerial
- 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.)
- Expired
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
- G08B13/2405—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
- G08B13/2422—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 acoustic or microwave tags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C3/00—Sorting according to destination
- B07C3/10—Apparatus characterised by the means used for detection ofthe destination
- B07C3/12—Apparatus characterised by the means used for detection ofthe destination using electric or electronic detecting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/34—Devices for discharging articles or materials from conveyor
- B65G47/46—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points
- B65G47/48—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to bodily destination marks on either articles or load-carriers
- B65G47/49—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to bodily destination marks on either articles or load-carriers without bodily contact between article or load carrier and automatic control device, e.g. the destination marks being electrically or electronically detected
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
- G01S13/755—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using delay lines, e.g. acoustic delay lines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/0672—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with resonating marks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/14—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for fastenings for doors; for turnstiles
- G07F17/145—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for fastenings for doors; for turnstiles for revolving doors or turnstiles
-
- 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
- G08B13/2414—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 inductive tags
- G08B13/2417—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 inductive tags having a radio frequency identification chip
-
- 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
- G08B13/2428—Tag details
- G08B13/2431—Tag circuit details
-
- 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
- G08B13/2428—Tag details
- G08B13/2437—Tag layered structure, processes for making layered 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
- G08B13/2428—Tag details
- G08B13/2437—Tag layered structure, processes for making layered tags
- G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details
-
- 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
- G08B13/2451—Specific applications combined with EAS
- G08B13/2462—Asset location systems combined with EAS
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Artificial Intelligence (AREA)
- General Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Life Sciences & Earth Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Geophysics (AREA)
- Signal Processing (AREA)
- Radar Systems Or Details Thereof (AREA)
- Burglar Alarm Systems (AREA)
- Selective Calling Equipment (AREA)
- Geophysics And Detection Of Objects (AREA)
- Discharge Of Articles From Conveyors (AREA)
Abstract
1298381 Theft alarms UNISEARCH Ltd 20 Feb 1970 [26 Feb 1969] 8326/70 Heading G4N [Also in Divisions B6 and H4] In an electronic surveillance system, signals from a transmitter are received by a passive label, which is arranged to retransmit a reply signal to a receiver for processing. The label is provided with storage means and time delay means, so that the reply signal is delayed and can be readily distinguished at the receiver from the original transmitted signal. Labels may be attached, for example, to items of merchandise in a shop and receivers installed at exits can detect unauthorized removal of said items. In a first embodiment, a transmitter provides a pulsed output at a carrier frequency of 897-5 MHz. A label has a protective outer section 15, Fig. 4, and inner sensitive elements 16. Descriptive matter 17 may be included if required. The elements 16 include an aerial system 18, such as a lump loaded omni-directional loop, and a transmission line 19. Said line is formed upon a quartz or other piezo-electric substrate 20, Fig. 5, and includes array elements for returning a ten bit binary code reply to the receiver. As shown, there is an end array 22, containing twentysix electrodes and seven coding arrays 23, each containing sixteen electrodes disposed according to the code 1101001111. The spacing of the array electrodes is approximately 2 microns, i.e., one half-wavelength of a surface electro-acoustic wave at the operating frequency, and alternate electrodes are connected to opposite conductors of the line 19, as shown in Fig. 6. A full set often coding arrays may be provided initially and those which are not required for a particular code disconnected from the line before use. In operation, a pulse is received via the aerial 18 and the entire array is energized along the transmission line 19. The arrays 22 and 23 launch electro-acoustic waves along the piezo-electric substrate 20 and, after a time delay due to propagation along the blank portion 24, the coded reply signal is re-radiated from the aerial 18 to the receiver (Figs. 8, 9, not shown), where it is processed. If full coding facilities are not required, a simplified structure may be used. In one such structure (Fig. 10, not shown) a single array corresponding to the array 22, Fig. 6, launches and receives an acoustic pulse to and from a surface wave reflector which is spaced at a suitable distance away on a quartz substrate. In another structure (Fig. 11, not shown) the surface wave from a single array is constrained by suitable grooves etched in the surface of a quartz substrate so that it propagates in a circular path. In a second embodiment, the transmitter provided has a pulsed output at a carrier frequency of 10 MHz (Figs. 14 to 19, not shown). A label (Fig. 20, not shown) consists of a 4 x 6 inch epoxy glass card carrying a printed circuit tuned and damped loop aerial, and a 2cm. thick 2.5 x 5cm. quartz substrate with a conductive pattern 75, Fig. 21, providing a delay of approximately 6 Ásec. and a five-bit binary replay code. Because of the lower carrier frequency, the spacing between individual electrodes of the array elements is greater than in the first embodiment i.e., approximately 0.1625 mm. A suitable receiver is described, schematic diagrams being given (Figs. 22 to 25, not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU5104869 | 1969-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1298381A true GB1298381A (en) | 1972-11-29 |
Family
ID=3737563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8326/70A Expired GB1298381A (en) | 1969-02-26 | 1970-02-20 | Passive labels for use in electronic surveillance systems |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5110491B1 (en) |
BE (1) | BE746458A (en) |
FR (1) | FR2033401A1 (en) |
GB (1) | GB1298381A (en) |
IL (1) | IL33938A0 (en) |
LU (1) | LU60418A1 (en) |
NL (1) | NL175349C (en) |
SE (1) | SE373968B (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2165411A (en) * | 1984-10-09 | 1986-04-09 | X Cyte Inc | Surface acoustic wave passive transponder having amplitude and phase-modifying surface pads |
US4642613A (en) * | 1984-03-16 | 1987-02-10 | Knogo Corporation | Electronic theft detection apparatus with responder elements on protected articles |
US5986382A (en) | 1997-08-18 | 1999-11-16 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
US6060815A (en) | 1997-08-18 | 2000-05-09 | X-Cyte, Inc. | Frequency mixing passive transponder |
US6107910A (en) | 1996-11-29 | 2000-08-22 | X-Cyte, Inc. | Dual mode transmitter/receiver and decoder for RF transponder tags |
US6114971A (en) | 1997-08-18 | 2000-09-05 | X-Cyte, Inc. | Frequency hopping spread spectrum passive acoustic wave identification device |
US6208062B1 (en) | 1997-08-18 | 2001-03-27 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
WO2001037004A1 (en) | 1999-11-15 | 2001-05-25 | Bluetags A/S | An object detection system |
US6624752B2 (en) | 1999-11-15 | 2003-09-23 | Bluetags A/S | Object detection system |
WO2007145890A2 (en) * | 2006-06-05 | 2007-12-21 | Bp Corporation North America Inc. | Method for accounting for people in emergencies in industrial settings |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4476459A (en) * | 1981-10-23 | 1984-10-09 | Knogo Corporation | Theft detection method and apparatus in which the decay of a resonant circuit is detected |
FR2597635B1 (en) * | 1986-04-16 | 1991-03-29 | Livratel Sa | METHOD FOR REMOTELY IDENTIFYING ISOLATED OR BULK OBJECTS WITH A CODED LABEL, LABEL AND INSTALLATION FOR IMPLEMENTING SAME |
FR2619225B1 (en) * | 1987-08-07 | 1990-05-04 | Tafani Christian | REMOTE DETECTION, RECOGNITION AND IDENTIFICATION SYSTEM. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1413264A (en) * | 1963-10-04 | 1965-10-08 | Thomson Houston Comp Francaise | Improvements to identification devices |
DE1541582C3 (en) * | 1966-05-27 | 1974-04-11 | Siemens Ag, 1000 Berlin U. 8000 Muenchen | System for the automatic wireless transmission of multi-digit information between mutually movable interrogation and response devices, in particular the numbers of railway vehicles to stationary interrogation devices |
US3363246A (en) * | 1967-04-19 | 1968-01-09 | Gen Electric | Identification system |
-
1970
- 1970-02-20 GB GB8326/70A patent/GB1298381A/en not_active Expired
- 1970-02-20 IL IL33938A patent/IL33938A0/en unknown
- 1970-02-24 SE SE7002344A patent/SE373968B/xx unknown
- 1970-02-25 BE BE746458D patent/BE746458A/en not_active IP Right Cessation
- 1970-02-26 JP JP45016670A patent/JPS5110491B1/ja active Pending
- 1970-02-26 NL NLAANVRAGE7002703,A patent/NL175349C/en not_active IP Right Cessation
- 1970-02-26 FR FR7006961A patent/FR2033401A1/fr active Pending
- 1970-02-26 LU LU60418D patent/LU60418A1/xx unknown
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4642613A (en) * | 1984-03-16 | 1987-02-10 | Knogo Corporation | Electronic theft detection apparatus with responder elements on protected articles |
GB2165411A (en) * | 1984-10-09 | 1986-04-09 | X Cyte Inc | Surface acoustic wave passive transponder having amplitude and phase-modifying surface pads |
US7741956B1 (en) | 1996-11-29 | 2010-06-22 | X-Cyte, Inc. | Dual mode transmitter-receiver and decoder for RF transponder tags |
US6531957B1 (en) | 1996-11-29 | 2003-03-11 | X-Cyte, Inc. | Dual mode transmitter-receiver and decoder for RF transponder tags |
US6107910A (en) | 1996-11-29 | 2000-08-22 | X-Cyte, Inc. | Dual mode transmitter/receiver and decoder for RF transponder tags |
US6208062B1 (en) | 1997-08-18 | 2001-03-27 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
US6114971A (en) | 1997-08-18 | 2000-09-05 | X-Cyte, Inc. | Frequency hopping spread spectrum passive acoustic wave identification device |
US6060815A (en) | 1997-08-18 | 2000-05-09 | X-Cyte, Inc. | Frequency mixing passive transponder |
US5986382A (en) | 1997-08-18 | 1999-11-16 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
WO2001037004A1 (en) | 1999-11-15 | 2001-05-25 | Bluetags A/S | An object detection system |
US6624752B2 (en) | 1999-11-15 | 2003-09-23 | Bluetags A/S | Object detection system |
WO2007145890A2 (en) * | 2006-06-05 | 2007-12-21 | Bp Corporation North America Inc. | Method for accounting for people in emergencies in industrial settings |
WO2007145890A3 (en) * | 2006-06-05 | 2008-09-12 | Bp Corp North America Inc | Method for accounting for people in emergencies in industrial settings |
Also Published As
Publication number | Publication date |
---|---|
NL175349B (en) | 1984-05-16 |
DE2008600A1 (en) | 1970-09-24 |
SE373968B (en) | 1975-02-17 |
IL33938A0 (en) | 1970-06-17 |
NL175349C (en) | 1984-10-16 |
JPS5110491B1 (en) | 1976-04-05 |
BE746458A (en) | 1970-08-25 |
FR2033401A1 (en) | 1970-12-04 |
NL7002703A (en) | 1970-08-28 |
DE2008600B2 (en) | 1977-05-05 |
LU60418A1 (en) | 1970-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
414F | Notice of opposition given (sect. 14/1949) | ||
414B | Case decided by the comptroller ** grants allowed (sect. 14/1949) | ||
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |