US4516262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character data processing apparatus
Assignee: Ricoh Co Ltd
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Filing: 1982-08-20
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Granted: 1985-05-07
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Expires: 2002-08-20
Abstract
Abstract A character data processing apparatus discriminates machine-printed characters and hand-printed characters from each other and identifies a class of characters such as kanas (Japanese syllabary) or Kanjis (Chinese characters used in Japan). Characters filled by hand in the blanks on a form carrying machine-printed characters are also transformed automatically into machine-printed characters. Furthermore, characters corrected by hand on a document are transformed into machine-printed characters.
Inventors
- 👤 Akira Sakurai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:16
CPC Classifications
G; G06; G06V; G06V30/00; G06V30/10; G06V30/24; G06V30/242; G06V30/244; G06V30/2455
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
122 words
A character data processing apparatus comprising: a scanning means for scanning an original document carrying handwritten character data to produce electric image data; character extraction means for extracting each character from the image data; character identification means for identifying the characteristics of the extracted character; and character processing means for processing the identified character into printed character data; the character identification means comprising a character shape detector for detecting the shape of the extracted character which is one of a plurality of shapes; the character shape detector comprising a character stroke extractor for extracting the number of strokes of the extracted character, and a character shape estimater for estimating the shape of the extracted character depending on the extracted number of strokes.
Claim 2
Dependent Claim
122 words
A character data processing apparatus comprising: a scanning means for scanning an original document carrying handwritten character data to produce electric image data; character extraction means for extracting each character from the image data; character identification means for identifying the characteristics of the extracted character; and character processing means for processing the identified character into printed character data; the character identification means comprising a character shape detector for detecting the shape of the extracted character which is one of a plurality of shapes; the character shape detector comprising a character stroke extractor for extracting the number of strokes of the extracted character, and a character shape estimater for estimating the shape of the extracted character depending on the extracted number of strokes.
Claim 3
Dependent Claim
28 words
A character data processing apparatus as claimed in claim 1, in which the scanning means comprises an analog-to-digital converter for converting analog image data into binary image data.
Claim 4
Dependent Claim
27 words
A character data processing apparatus as claimed in claim 2, in which the scanning means further comprises an input buffer for sequentially storing the binary image data.
Claim 5
Dependent Claim
22 words
A character data processing apparatus as claimed in claim 1, in which the plurality of character shapes are capital and small alphabets.
Claim 6
Dependent Claim
99 words
A character data processing apparatus comprising: a scanning means for scanning an original document carrying handwritten character data to produce electric image data; character extraction means for extracting each character from the image data; character identification means for identifying the characteristics of the extracted character; and character processing means for processing the identified character into printed character data; the character identification means comprising a character shape detector for detecting the shape of the extracted character which is one of a plurality of shapes; the plurality of character shapes being kanas (Japanese syllabary) and kanjis (Chinese characters used in Japan).
Claim 7
Dependent Claim
99 words
A character data processing apparatus comprising: a scanning means for scanning an original document carrying handwritten character data to produce electric image data; character extraction means for extracting each character from the image data; character identification means for identifying the characteristics of the extracted character; and character processing means for processing the identified character into printed character data; the character identification means comprising a character shape detector for detecting the shape of the extracted character which is one of a plurality of shapes; the plurality of character shapes being kanas (Japanese syllabary) and kanjis (Chinese characters used in Japan).
Claim 8
Dependent Claim
103 words
A character data processing apparatus comprising: a scanning means for scanning an original document carrying handwritten character data to produce electric image data; character extraction means for extracting each character from the image data; character identification means for identifying the characteristics of the extracted character; and character processing means for processing the identified character into printed character data; the character identification means comprising a character shape detector for detecting the shape of the extracted character which is one of a plurality of shapes; the character identification means further comprising a printed/handwritten character discriminator for discriminating printed characters and handwritten characters from each other.
Claim 9
Dependent Claim
103 words
A character data processing apparatus comprising: a scanning means for scanning an original document carrying handwritten character data to produce electric image data; character extraction means for extracting each character from the image data; character identification means for identifying the characteristics of the extracted character; and character processing means for processing the identified character into printed character data; the character identification means comprising a character shape detector for detecting the shape of the extracted character which is one of a plurality of shapes; the character identification means further comprising a printed/handwritten character discriminator for discriminating printed characters and handwritten characters from each other.
Claim 10
Dependent Claim
32 words
A character data processing apparatus as claimed in claim 6, in which the printed/handwritten character discriminator comprises a calculator for calculating parameters which reflect a difference between printed characters and handwritten characters.
Claim 11
Dependent Claim
34 words
A character data processing apparatus as claimed in claim 7, in which the printed/handwritten character discriminator further comprises a printed/handwritten character determiner for determining whether or not the extracted character is a handwritten character.
References Cited (Backward Citations)
US3613080A
Cited
US4003025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-06 | 1988-11-05 | 1989-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-06 | 1992-11-05 | 1993-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-06 | 1996-11-05 | 1997-05-07 | $7700.00 | Window Closed / Lapsed |