US5457540A
Expired / Lapsed
US
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Image processing method and apparatus in which identification information is added based on image density
Assignee: Canon Inc
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Filing: 1992-12-24
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Granted: 1995-10-10
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Expires: 2012-12-24
Abstract
Abstract An image processing apparatus adds information to read image signals and arranges a mark indicative of a position where the information is added so that the additional information can be easily extracted. An image processor processes full-color image signals from a line sensor and a binarization circuit binarizes the signals using a pseudo half-tone processing. A density judgment circuit judges the density of the image signals and controls a modulator which adds additional information. The modulator refers to the contents of a ROM and changes dot positions in the binarized image signals based on the referred information and adds the additional information to the image signals. A FIFO compensates for image signals delayed by the density judgment circuit.
Inventors
- 👤 Koji Kajita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:57
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00838; H04N1/00856; H04N1/00864; H04N1/00867; H04N1/0087; H04N1/32; H04N1/32101; H04N1/32144; H04N1/32149; H04N1/32203; H04N1/32208; H04N1/32251; H04N1/32309; H04N1/32352; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3204; H04N2201/3205; H04N2201/3269; H04N2201/327; H04N2201/3271
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
68 words
An image processing apparatus comprising: generating means for generating a plurality of dot data; and control means for controlling an interval of two dots formed in accordance with the dot data generated by said generating means, wherein the interval controlled by said control means represents a predetermined information which is not included in a dot image formed in accordance with the dot data generated by said generating means.
Claim 2
Dependent Claim
68 words
An image processing apparatus comprising: generating means for generating a plurality of dot data; and control means for controlling an interval of two dots formed in accordance with the dot data generated by said generating means, wherein the interval controlled by said control means represents a predetermined information which is not included in a dot image formed in accordance with the dot data generated by said generating means.
Claim 3
Dependent Claim
28 words
The apparatus according to claim 1, further comprising detecting means for detecting whether the interval is for an odd number of dots or an even number of dots.
Claim 4
Dependent Claim
38 words
The apparatus according to claim 1, wherein said control means controls intervals of a plurality of dots so that each of intervals of two neighboring dots is an odd number of dots or an even number of dots.
Claim 5
Dependent Claim
16 words
The apparatus according to claim 1, wherein the predetermined information is information for specifying the apparatus.
Claim 6
Dependent Claim
23 words
The apparatus according to claim 1, wherein the predetermined information is information for specifying time and date of processing performed by the apparatus.
Claim 7
Dependent Claim
15 words
The apparatus according to claim 1, wherein the predetermined information is expressed by binary information.
Claim 8
Dependent Claim
15 words
The apparatus according to claim 1, wherein said generating means comprises a CCD line sensor.
Claim 9
Dependent Claim
14 words
The apparatus according to claim 1, wherein said generating means comprises a host computer.
Claim 10
Dependent Claim
24 words
The apparatus according to claim 1, further comprising image forming means for forming an image on a medium in accordance with the dot data.
Claim 11
Dependent Claim
70 words
An image processing method comprising: a generating step of generating a plurality of dot data; and a control step of controlling an interval of two dots formed in accordance with the dot data generated in said generating step, wherein the interval controlled in said control step represents a predetermined information which is not included in a dot image formed in accordance with the dot data generated in said generating step.
Claim 12
Dependent Claim
70 words
An image processing method comprising: a generating step of generating a plurality of dot data; and a control step of controlling an interval of two dots formed in accordance with the dot data generated in said generating step, wherein the interval controlled in said control step represents a predetermined information which is not included in a dot image formed in accordance with the dot data generated in said generating step.
Claim 13
Dependent Claim
95 words
An image processing apparatus comprising: generating means for generating a plurality of kind of color dot data dot-sequentially; detecting means for detecting an interval of two dots of the same kind of color formed in accordance with the color dot data generated by said generating means; and control means for controlling the interval of the two dots of the same kind of color, wherein the interval controlled by said control means represents a predetermined information which is not included in a dot image in accordance with the color dot data generated by said generating means.
Claim 14
Dependent Claim
95 words
An image processing apparatus comprising: generating means for generating a plurality of kind of color dot data dot-sequentially; detecting means for detecting an interval of two dots of the same kind of color formed in accordance with the color dot data generated by said generating means; and control means for controlling the interval of the two dots of the same kind of color, wherein the interval controlled by said control means represents a predetermined information which is not included in a dot image in accordance with the color dot data generated by said generating means.
Claim 15
Dependent Claim
27 words
The apparatus according to claim 11, wherein said detecting means detects whether the interval is for an odd number of dots or an even number of dots.
Claim 16
Dependent Claim
44 words
The apparatus according to claim 12, wherein said control means controls intervals of a plurality of dots of same kind of color so that each of intervals of two neighboring dots is for an odd number of dots or an even number of dots.
Claim 17
Dependent Claim
16 words
The apparatus according to claim 11, wherein the predetermined information is information for specifying the apparatus.
Claim 18
Dependent Claim
23 words
The apparatus according to claim 11, wherein the predetermined information is information for specifying time and date of processing performed by the apparatus.
Claim 19
Dependent Claim
15 words
The apparatus according to claim 11, wherein the predetermined information is expressed by binary information.
Claim 20
Dependent Claim
15 words
The apparatus according to claim 11, wherein said generating means comprises a CCD line sensor.
Claim 21
Dependent Claim
14 words
The apparatus according to claim 11, wherein said generating means comprises a host computer.
Claim 22
Dependent Claim
24 words
The apparatus according to claim 11, further comprising image forming means for forming an image on a medium in accordance with the dot data.
Claim 23
Dependent Claim
96 words
An image processing method comprising: a generating step of generating plural kinds of color dot data dot-sequentially; a detecting step of detecting an interval of two dots of the same kind of color formed in accordance with the color dot data generated in said generating step; and a control step of controlling the interval of the two dots of the same kind of color, wherein the interval controlled in said control step represents a predetermined information which is not included in a dot image in accordance with the color dot data generated in said generating step.
Claim 24
Dependent Claim
96 words
An image processing method comprising: a generating step of generating plural kinds of color dot data dot-sequentially; a detecting step of detecting an interval of two dots of the same kind of color formed in accordance with the color dot data generated in said generating step; and a control step of controlling the interval of the two dots of the same kind of color, wherein the interval controlled in said control step represents a predetermined information which is not included in a dot image in accordance with the color dot data generated in said generating step.
Claim 25
Dependent Claim
60 words
An image processing apparatus comprising: generating means for generating image data; judging means for judging whether a level of the image data is in a predetermined range; adding means for adding a predetermined information on an image represented by the image data; and control means for controlling addition by said adding means in accordance with judgment by said judging means.
Claim 26
Dependent Claim
60 words
An image processing apparatus comprising: generating means for generating image data; judging means for judging whether a level of the image data is in a predetermined range; adding means for adding a predetermined information on an image represented by the image data; and control means for controlling addition by said adding means in accordance with judgment by said judging means.
Claim 27
Dependent Claim
16 words
The apparatus according to claim 21, wherein the predetermined information is information for specifying the apparatus.
Claim 28
Dependent Claim
23 words
The apparatus according to claim 21, wherein the predetermined information is information for specifying time and date of processing performed by the apparatus.
Claim 29
Dependent Claim
15 words
The apparatus according to claim 21, wherein the predetermined information is expressed by binary information.
Claim 30
Dependent Claim
15 words
The apparatus according to claim 21, wherein said generating means comprises a CCD line sensor.
Claim 31
Dependent Claim
14 words
The apparatus according to claim 21, wherein said generating means comprises a host computer.
Claim 32
Dependent Claim
64 words
An image processing method comprising: a generating step of generating image data; a judging step of judging whether a level of the image data is in a predetermined range; an adding step of adding a predetermined information on an image represented by the image data; and a control step of controlling addition in said adding step in accordance with judgment in said judging step.
Claim 33
Dependent Claim
64 words
An image processing method comprising: a generating step of generating image data; a judging step of judging whether a level of the image data is in a predetermined range; an adding step of adding a predetermined information on an image represented by the image data; and a control step of controlling addition in said adding step in accordance with judgment in said judging step.
Claim 34
Dependent Claim
81 words
An image processing apparatus comprising: generating means for generating image data; and processing means for processing the image data generated by said generating means and outputting a reproduction signal for forming an image, wherein said processing means includes adding means for adding a predetermined information on the image and control means for controlling density of the image after the addition by said adding means so that the density of the image before the addition by said adding means is substantially preserved.
Claim 35
Dependent Claim
81 words
An image processing apparatus comprising: generating means for generating image data; and processing means for processing the image data generated by said generating means and outputting a reproduction signal for forming an image, wherein said processing means includes adding means for adding a predetermined information on the image and control means for controlling density of the image after the addition by said adding means so that the density of the image before the addition by said adding means is substantially preserved.
Claim 36
Dependent Claim
16 words
The apparatus according to claim 28, wherein the predetermined information is information for specifying the apparatus.
Claim 37
Dependent Claim
23 words
The apparatus according to claim 28, wherein the predetermined information is information for specifying time and date of processing performed by the apparatus.
Claim 38
Dependent Claim
15 words
The apparatus according to claim 28, wherein the predetermined information is expressed by binary information.
Claim 39
Dependent Claim
15 words
The apparatus according to claim 28, wherein said generating means comprises a CCD line sensor.
Claim 40
Dependent Claim
14 words
The apparatus according to claim 28, wherein said generating means comprises a host computer.
Claim 41
Dependent Claim
85 words
An image processing method comprising: a generating step of generating image data; and a processing step of processing the image data generated in said generating step and outputting a reproduction signal for forming an image, wherein said processing step includes an adding step of adding a predetermined information on the image and a control step of controlling density of the image after the addition in said adding step so that the density of the image before the addition in said adding step is substantially preserved.
Claim 42
Dependent Claim
85 words
An image processing method comprising: a generating step of generating image data; and a processing step of processing the image data generated in said generating step and outputting a reproduction signal for forming an image, wherein said processing step includes an adding step of adding a predetermined information on the image and a control step of controlling density of the image after the addition in said adding step so that the density of the image before the addition in said adding step is substantially preserved.
Claim 43
Dependent Claim
17 words
The apparatus according to claim 9, wherein said image forming means has an ink-jet type printing head.
Claim 44
Dependent Claim
31 words
The apparatus according to claim 35, wherein the ink-jet type printing head includes a bubble-jet type ink head which boils ink by heat energy to form bubbles and eject the ink.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-09 | 1999-04-10 | 1999-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-09 | 2003-04-10 | 2003-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-09 | 2007-04-10 | 2007-10-10 | $7700.00 | Window Closed / Lapsed |