GB2309781B - Method of authenticating watermarked paper - Google Patents
Method of authenticating watermarked paperInfo
- Publication number
- GB2309781B GB2309781B GB9709942A GB9709942A GB2309781B GB 2309781 B GB2309781 B GB 2309781B GB 9709942 A GB9709942 A GB 9709942A GB 9709942 A GB9709942 A GB 9709942A GB 2309781 B GB2309781 B GB 2309781B
- Authority
- GB
- United Kingdom
- Prior art keywords
- watermarked paper
- authenticating
- authenticating watermarked
- paper
- watermarked
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
-
- 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
- G07D7/06—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 using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/121—Apparatus characterised by sensor details
-
- 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
- G07D7/15—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 using heating means
-
- 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
- G07D7/20—Testing patterns thereon
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Credit Cards Or The Like (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9709942A GB2309781B (en) | 1994-12-14 | 1995-12-07 | Method of authenticating watermarked paper |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9425232.7A GB9425232D0 (en) | 1994-12-14 | 1994-12-14 | Method of authenticating watermarked paper |
PCT/GB1995/002855 WO1996018978A1 (en) | 1994-12-14 | 1995-12-07 | Method of authenticating watermarked paper |
GB9709942A GB2309781B (en) | 1994-12-14 | 1995-12-07 | Method of authenticating watermarked paper |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9709942D0 GB9709942D0 (en) | 1997-07-09 |
GB2309781A GB2309781A (en) | 1997-08-06 |
GB2309781B true GB2309781B (en) | 1998-11-11 |
Family
ID=26306171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9709942A Expired - Fee Related GB2309781B (en) | 1994-12-14 | 1995-12-07 | Method of authenticating watermarked paper |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2309781B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6766045B2 (en) | 2002-03-11 | 2004-07-20 | Digital Verification Ltd. | Currency verification |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4296326A (en) * | 1979-03-06 | 1981-10-20 | Thomas De La Rue & Company Limited | Watermark detection |
GB2168494A (en) * | 1984-12-18 | 1986-06-18 | Gilbert Mciver Stevenson | Method and apparatus for non- destructively testing for discontinuities between a coating and a substrate |
US4608598A (en) * | 1983-06-29 | 1986-08-26 | Fujitsu Limited | Thermal imaging apparatus |
WO1987000632A1 (en) * | 1985-07-15 | 1987-01-29 | Kanor A/S | Method and apparatus for the characterization and control of substances, materials and objects |
EP0348742A2 (en) * | 1988-06-30 | 1990-01-03 | Nkk Corporation | Method for detecting thinned out portion of inner surface or outer surface of pipe |
WO1990008311A1 (en) * | 1989-01-13 | 1990-07-26 | Iowa State University Research Foundation, Inc. | Apparatus and method for transient thermal infrared emission spectrometry |
EP0381550A1 (en) * | 1989-01-23 | 1990-08-08 | Arjo Wiggins S.A. | Fast apparatus and method for recognizing water marks by electromagnetic rays |
GB2264779A (en) * | 1992-02-20 | 1993-09-08 | Thermoteknix Systems Ltd | Monitoring changes in image characteristics. |
-
1995
- 1995-12-07 GB GB9709942A patent/GB2309781B/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4296326A (en) * | 1979-03-06 | 1981-10-20 | Thomas De La Rue & Company Limited | Watermark detection |
US4608598A (en) * | 1983-06-29 | 1986-08-26 | Fujitsu Limited | Thermal imaging apparatus |
GB2168494A (en) * | 1984-12-18 | 1986-06-18 | Gilbert Mciver Stevenson | Method and apparatus for non- destructively testing for discontinuities between a coating and a substrate |
WO1987000632A1 (en) * | 1985-07-15 | 1987-01-29 | Kanor A/S | Method and apparatus for the characterization and control of substances, materials and objects |
EP0348742A2 (en) * | 1988-06-30 | 1990-01-03 | Nkk Corporation | Method for detecting thinned out portion of inner surface or outer surface of pipe |
WO1990008311A1 (en) * | 1989-01-13 | 1990-07-26 | Iowa State University Research Foundation, Inc. | Apparatus and method for transient thermal infrared emission spectrometry |
EP0381550A1 (en) * | 1989-01-23 | 1990-08-08 | Arjo Wiggins S.A. | Fast apparatus and method for recognizing water marks by electromagnetic rays |
GB2264779A (en) * | 1992-02-20 | 1993-09-08 | Thermoteknix Systems Ltd | Monitoring changes in image characteristics. |
Also Published As
Publication number | Publication date |
---|---|
GB2309781A (en) | 1997-08-06 |
GB9709942D0 (en) | 1997-07-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20011207 |