GB2332645B - Method of detecting a piezoelectric security thread - Google Patents

Method of detecting a piezoelectric security thread

Info

Publication number
GB2332645B
GB2332645B GB9726960A GB9726960A GB2332645B GB 2332645 B GB2332645 B GB 2332645B GB 9726960 A GB9726960 A GB 9726960A GB 9726960 A GB9726960 A GB 9726960A GB 2332645 B GB2332645 B GB 2332645B
Authority
GB
United Kingdom
Prior art keywords
piezoelectric
detecting
security thread
security
thread
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 - Fee Related
Application number
GB9726960A
Other versions
GB9726960D0 (en
GB2332645A (en
Inventor
Richard Hunter Brown
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.)
AMP Deutschland GmbH
Original Assignee
AMP Deutschland GmbH
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 AMP Deutschland GmbH filed Critical AMP Deutschland GmbH
Priority to GB9726960A priority Critical patent/GB2332645B/en
Publication of GB9726960D0 publication Critical patent/GB9726960D0/en
Publication of GB2332645A publication Critical patent/GB2332645A/en
Application granted granted Critical
Publication of GB2332645B publication Critical patent/GB2332645B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/02—Testing electrical properties of the materials thereof
    • G07D7/026—Testing electrical properties of the materials thereof using capacitive sensors
    • 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
    • G06K19/08—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 using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—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 using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/01—Testing electronic circuits therein
GB9726960A 1997-12-19 1997-12-19 Method of detecting a piezoelectric security thread Expired - Fee Related GB2332645B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9726960A GB2332645B (en) 1997-12-19 1997-12-19 Method of detecting a piezoelectric security thread

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9726960A GB2332645B (en) 1997-12-19 1997-12-19 Method of detecting a piezoelectric security thread

Publications (3)

Publication Number Publication Date
GB9726960D0 GB9726960D0 (en) 1998-02-18
GB2332645A GB2332645A (en) 1999-06-30
GB2332645B true GB2332645B (en) 2001-08-29

Family

ID=10823975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9726960A Expired - Fee Related GB2332645B (en) 1997-12-19 1997-12-19 Method of detecting a piezoelectric security thread

Country Status (1)

Country Link
GB (1) GB2332645B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19926010C2 (en) * 1999-06-08 2003-01-30 Bundesdruckerei Gmbh Value and security document with security feature with piezo-effect-based properties and associated verification procedure
CN107481389B (en) * 2017-08-03 2019-06-07 恒银金融科技股份有限公司 A kind of paper money number area image binary processing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997007478A1 (en) * 1995-08-14 1997-02-27 The Whitaker Corporation Apparatus for detecting presence of piezoelectric material______
WO1999001292A1 (en) * 1997-06-30 1999-01-14 Measurement Specialties, Inc. Security thread

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997007478A1 (en) * 1995-08-14 1997-02-27 The Whitaker Corporation Apparatus for detecting presence of piezoelectric material______
WO1999001292A1 (en) * 1997-06-30 1999-01-14 Measurement Specialties, Inc. Security thread

Also Published As

Publication number Publication date
GB9726960D0 (en) 1998-02-18
GB2332645A (en) 1999-06-30

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20051219