CA1028020A - Document detection apparatus - Google Patents
Document detection apparatusInfo
- Publication number
- CA1028020A CA1028020A CA213,793A CA213793A CA1028020A CA 1028020 A CA1028020 A CA 1028020A CA 213793 A CA213793 A CA 213793A CA 1028020 A CA1028020 A CA 1028020A
- Authority
- CA
- Canada
- Prior art keywords
- detection apparatus
- document detection
- document
- detection
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Controlling Sheets Or Webs (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Conveying Record Carriers (AREA)
- Character Input (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US420127A US3873843A (en) | 1973-11-29 | 1973-11-29 | Document detection apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1028020A true CA1028020A (en) | 1978-03-14 |
Family
ID=23665190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA213,793A Expired CA1028020A (en) | 1973-11-29 | 1974-11-15 | Document detection apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US3873843A (de) |
JP (1) | JPS5086933A (de) |
CA (1) | CA1028020A (de) |
DE (1) | DE2456036B2 (de) |
GB (1) | GB1481714A (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4064388A (en) * | 1974-11-29 | 1977-12-20 | Burroughs Corporation | Decoder clutching system for minicomputers |
JPS5677962U (de) * | 1979-11-21 | 1981-06-24 | ||
US4398711A (en) * | 1979-12-31 | 1983-08-16 | Ncr Corporation | Currency dispenser monitor |
US4395127A (en) * | 1980-09-11 | 1983-07-26 | The United States Of America As Represented By The Secretary Of The Treasury | Optical paper detector |
US4510615A (en) * | 1981-12-29 | 1985-04-09 | International Business Machines Corporation | Magnetic character reader with double document detection |
JPS6246389A (ja) * | 1985-08-26 | 1987-02-28 | Nec Corp | 自動紙送り機能付オンライン手書文字認識装置 |
JPH06104517B2 (ja) * | 1990-03-09 | 1994-12-21 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | 重なった用紙の給送を検出する方法及び装置 |
GB2265140B (en) * | 1992-03-17 | 1995-10-25 | Pitney Bowes Plc | An infeed apparatus |
US5502312A (en) * | 1994-04-05 | 1996-03-26 | Pitney Bowes Inc. | Double document detection system having dectector calibration |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3321637A (en) * | 1965-08-12 | 1967-05-23 | Rca Corp | Check circuit for optical reader employing threshold amplifier |
US3628031A (en) * | 1969-02-06 | 1971-12-14 | Automata Corp | Closed loop control system for automatic sensitivity control of transducer |
US3665326A (en) * | 1970-03-30 | 1972-05-23 | Us Navy | Automatic threshold detector with selectable percentage of threshold crossings |
US3614419A (en) * | 1970-04-06 | 1971-10-19 | Xerox Corp | Multiple sheet detection system |
US3734631A (en) * | 1971-05-28 | 1973-05-22 | Hewlett Packard Co | Nondispersive infrared gas analyzer employing solid state emitters and photodetectors |
-
1973
- 1973-11-29 US US420127A patent/US3873843A/en not_active Expired - Lifetime
-
1974
- 1974-11-15 CA CA213,793A patent/CA1028020A/en not_active Expired
- 1974-11-26 GB GB51229/74A patent/GB1481714A/en not_active Expired
- 1974-11-27 DE DE2456036A patent/DE2456036B2/de not_active Withdrawn
- 1974-11-28 JP JP49135982A patent/JPS5086933A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2456036B2 (de) | 1979-01-18 |
DE2456036A1 (de) | 1975-06-12 |
JPS5086933A (de) | 1975-07-12 |
GB1481714A (en) | 1977-08-03 |
US3873843A (en) | 1975-03-25 |
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