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 Title: |
US3833882:
CHARACTER READING SYSTEM
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Busby, John W.; Newtown, PA
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| Assignee: |
Busby Venture Corporation, Newton, PA
other patents from BUSBY VENTURE CORPORATION (81850) (approx. 1)
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| Published / Filed: |
1974-09-03
/ 1972-04-28
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| Application Number: |
US1972000248566
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| IPC Code: |
Advanced:
G06K 9/18;
Core:
more...
IPC-7:
G06K 9/10;
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| U.S. Class: |
Current:
382/182;
382/202;
382/321;
Original:
340/146.3J;
340/146.3Z;
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| Field of Search: |
340/146.3 J,146.3 Z
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| Priority Number: |
| 1972-04-28 |
US1972000248566 |
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| Abstract: |
A stylized character reading system in which timing is effectuated by "self-clocking" on the characters themselves thereby eliminating the need for precise horizontal placement of the characters as required by systems in which separate clocking tracks or edge of document detectors are used and in which clock pulses are related to paper movement. In a preferred embodiment three sensors are used as character present sensors which read horizontal line portions of the characters and are used solely to detect the presence of a character. Two data sensors are used to detect vertical marks in the characters and send pulses to the input data register for character identification. The system further comprises a reader which includes the sensors, a self-clocking timing generator, end-of-character logic, even parity checker and a six-bit character code storage register with code recognition logic which may be coupled with code conversion logic to generate any appropriate machine language code.
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| Attorney, Agent or Firm: |
Woodcock, Washburn, Kurtz & Mackiewicz ;
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| Primary / Asst. Examiners: |
Henon, Paul J.; Gnuse, Robert F.
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| Family: |
None
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First Claim:
Show all 7 claims |
1. Apparatus for identifying stylized characters which are made up of vertical and horizontal marks easily recognizable as arabic numerals and in which a horizontal mark extends throughout a character space and determines the length of said character space, comprising:
- a. A first sensing means for sensing the horizontal mark;
- b. Means for producing a character present signal from the horizontal mark when sensed;
- c. means for producing a timing signal during the presence of said character present signal;
- d. a second sensing means for sensing the vertical marks and producing an output representing the presence or absence of said vertical marks;
- e. means responsive to said timing signal and said output for registering the presence and absence of said vertical marks to produce a binary signal pattern; and
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 11 U.S. patent(s) that reference this one
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