Patent
Picture signal generating apparatus
| العنوان: | Picture signal generating apparatus |
|---|---|
| Patent Number: | 4,710,816 |
| تاريخ النشر: | December 01, 1987 |
| Appl. No: | 06/911,356 |
| Application Filed: | September 25, 1986 |
| مستخلص: | A picture signal generating apparatus has a CCD line sensor. In this apparatus, an image read instruction pulse is generated whenever a CCD line sensor or an original image is moved by a predetermined distance, an exposure is detected by a time integral determined by a pulse interval of the image read instruction pulses upon detection of an intensity of light reflected by or transmitted through the original image, and an image output from the CCD line sensor in response to the image read instruction pulse is normalized according to the detected exposure. Image output normalization can be achieved by dividing the CCD line sensor image output by the exposure or by controlling the intensity of the illumination light so as to keep the exposure constant. |
| Inventors: | Yabumoto, Seiichi (Tokyo, JPX) |
| Assignees: | Nippon Kogaku K. K. (Tokyo, JPX) |
| Claim: | What is claimed is |
| Claim: | 1. An apparatus for illuminating an object with illuminating means, providing a relative displacement between a linear image sensor and a pattern distribution of light from the object in a direction substantially perpendicular to an alignment direction of a plurality of photoelectric transducer elements constituting said linear image sensor, and controlling a picture signal of said image sensor according to the pattern distribution of light from the object, including |
| Claim: | (a) means for detecting the relative displacement and generating a displacement detection signal whenever a predetermined displacement occurs between said image sensor and the pattern distribution of light from the object; |
| Claim: | (b) exposure detecting means having light-receiving means for receiving light from said illuminating means, said exposure detecting means being adapted to detect an exposure of said light-receiving means upon illumination of light from said illuminating means in response to the displacement detection signal and to generate an exposure detection signal representing the detected exposure; and |
| Claim: | (c) normalizing means for normalizing the picture signal in response to the exposure detection signal. |
| Claim: | 2. An apparatus according to claim 1, wherein said light-receiving means comprises means for generating a light intensity signal representing an intensity of light received thereby, said exposure detecting means comprises integrating means for integrating the light intensity signal, said integrating means being adapted to interrupt integration in response to the displacement detection signal and to restart the integration thereafter. |
| Claim: | 3. An apparatus according to claim 2, wherein said normalizing means includes means for dividing the picture signal by the exposure detection signal in response to the displacement detection signal. |
| Claim: | 4. An apparatus according to claim 3, wherein said exposure detecting means outputs as the exposure detection signal a value obtained by causing said integrating means to integrate the light intensity signal. |
| Claim: | 5. An apparatus according to claim 2, wherein said normalizing means includes means for controlling an intensity of light emitted from said illuminating means to said light-receiving means, in response to the exposure detection signal. |
| Claim: | 6. An apparatus according to claim 1, wherein said illuminating means comprises a light source and an optical member for partially transmitting light from said light source and reflecting a remaining component of the light, and said light-receiving means receives light emitted from said light source and reflected by or transmitted through said optical member. |
| Claim: | 7. An apparatus having a plurality of photoelectric transducer elements arranged in one direction, said apparatus being adapted to parallel output a first output from a plurality of odd-numbered ones of said photoelectric transducer elements and a second output from a plurality of even-numbered ones of said photoelectric transducer elements, including |
| Claim: | (a) generating means for combining the first and second outputs to generate a composite picture signal; and |
| Claim: | (b) control means for controlling such that DC levels of the first and second outputs input to said generating means substantially coincide with each other. |
| Claim: | 8. An apparatus according to claim 7, wherein said control means includes means for comparing the DC levels of the first and second outputs with predetermined levels and generating a comparison signal. |
| Claim: | 9. An apparatus according to claim 8, wherein said control means controls the DC levels of the first and second outputs in response to the comparison signal. |
| Claim: | 10. An apparatus comprising |
| Claim: | (a) linear image sensor means having a plurality of photoelectric transducer elements arranged in one direction, said linear image sensor means being adapted to parallel output a first output from a plurality of odd-numbered ones of said photoelectric transducer elements and a second output from a plurality of even-numbered ones of said photoelectric transducer elements; |
| Claim: | (b) generating means for combining the first and second outputs to generate a composite picture signal; |
| Claim: | (c) control means for controlling such that DC levels of the first and second outputs input to said generating means substantially coincide with each other; |
| Claim: | (d) illuminating means for illuminating an object by light; |
| Claim: | (e) means for providing a relative displacement between said linear image sensor means and the object in a direction substantially perpendicular to the arranged direction of said plurality of photoelectric transducer elements; |
| Claim: | (f) means for detecting the relative displacement and generating a displacement detection signal whenever a predetermined displacement occurs between said linear image sensor means and the object; |
| Claim: | (g) exposure detecting means having light-receiving means for receiving light from said illuminating means, said exposure detecting means being adapted to detect an exposure of said light-receiving means upon illumination of light from said illuminating means in response to the displacement detection signal and to generate an exposure detection signal representing the detected exposure; and |
| Claim: | (h) normalizing means for normalizing said composite picture signal in response to the exposure detection signal. |
| Current U.S. Class: | 35821/315; 35821/319; 35821/328; 35821/326 |
| Current International Class: | H04N 314 |
| Patent References Cited: | 4317134 February 1982 Woo 4432017 February 1984 Stoffel 4438457 March 1984 Tandon 4547676 October 1985 Suzuki 4563708 January 1986 Ishibashi |
| Primary Examiner: | Masinick, Michael A. |
| Attorney, Agent or Firm: | Shapiro and Shapiro |
| رقم الانضمام: | edspgr.04710816 |
| قاعدة البيانات: | USPTO Patent Grants |
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edspgr USPTO Patent Grants edspgr.04710816 646 3 Patent patent 645.93701171875 |
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https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edspgr&AN=edspgr.04710816&custid=s6537998&authtype=sso |
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Array ( [Name] => DocumentID [Label] => Patent Number [Group] => Patent [Data] => 4,710,816 ) Array ( [Name] => DateEntry [Label] => Publication Date [Group] => Patent [Data] => December 01, 1987 ) Array ( [Name] => DocumentID [Label] => Appl. No [Group] => Patent [Data] => 06/911,356 ) Array ( [Name] => DateFiled [Label] => Application Filed [Group] => Patent [Data] => September 25, 1986 ) Array ( [Name] => Abstract [Label] => Abstract [Group] => Ab [Data] => A picture signal generating apparatus has a CCD line sensor. In this apparatus, an image read instruction pulse is generated whenever a CCD line sensor or an original image is moved by a predetermined distance, an exposure is detected by a time integral determined by a pulse interval of the image read instruction pulses upon detection of an intensity of light reflected by or transmitted through the original image, and an image output from the CCD line sensor in response to the image read instruction pulse is normalized according to the detected exposure. Image output normalization can be achieved by dividing the CCD line sensor image output by the exposure or by controlling the intensity of the illumination light so as to keep the exposure constant. ) Array ( [Name] => Author [Label] => Inventors [Group] => Patent [Data] => <searchLink fieldCode="ZA" term="%22Yabumoto%2C+Seiichi%22">Yabumoto, Seiichi</searchLink> (Tokyo, JPX) ) Array ( [Name] => OtherAuthors [Label] => Assignees [Group] => Patent [Data] => <searchLink fieldCode="ZS" term="%22Nippon+Kogaku+K%2E+K%2E%22">Nippon Kogaku K. K.</searchLink> (Tokyo, JPX) ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => What is claimed is ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 1. An apparatus for illuminating an object with illuminating means, providing a relative displacement between a linear image sensor and a pattern distribution of light from the object in a direction substantially perpendicular to an alignment direction of a plurality of photoelectric transducer elements constituting said linear image sensor, and controlling a picture signal of said image sensor according to the pattern distribution of light from the object, including ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (a) means for detecting the relative displacement and generating a displacement detection signal whenever a predetermined displacement occurs between said image sensor and the pattern distribution of light from the object; ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (b) exposure detecting means having light-receiving means for receiving light from said illuminating means, said exposure detecting means being adapted to detect an exposure of said light-receiving means upon illumination of light from said illuminating means in response to the displacement detection signal and to generate an exposure detection signal representing the detected exposure; and ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (c) normalizing means for normalizing the picture signal in response to the exposure detection signal. ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 2. An apparatus according to claim 1, wherein said light-receiving means comprises means for generating a light intensity signal representing an intensity of light received thereby, said exposure detecting means comprises integrating means for integrating the light intensity signal, said integrating means being adapted to interrupt integration in response to the displacement detection signal and to restart the integration thereafter. ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 3. An apparatus according to claim 2, wherein said normalizing means includes means for dividing the picture signal by the exposure detection signal in response to the displacement detection signal. ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 4. An apparatus according to claim 3, wherein said exposure detecting means outputs as the exposure detection signal a value obtained by causing said integrating means to integrate the light intensity signal. ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 5. An apparatus according to claim 2, wherein said normalizing means includes means for controlling an intensity of light emitted from said illuminating means to said light-receiving means, in response to the exposure detection signal. ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 6. An apparatus according to claim 1, wherein said illuminating means comprises a light source and an optical member for partially transmitting light from said light source and reflecting a remaining component of the light, and said light-receiving means receives light emitted from said light source and reflected by or transmitted through said optical member. ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 7. An apparatus having a plurality of photoelectric transducer elements arranged in one direction, said apparatus being adapted to parallel output a first output from a plurality of odd-numbered ones of said photoelectric transducer elements and a second output from a plurality of even-numbered ones of said photoelectric transducer elements, including ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (a) generating means for combining the first and second outputs to generate a composite picture signal; and ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (b) control means for controlling such that DC levels of the first and second outputs input to said generating means substantially coincide with each other. ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 8. An apparatus according to claim 7, wherein said control means includes means for comparing the DC levels of the first and second outputs with predetermined levels and generating a comparison signal. ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 9. An apparatus according to claim 8, wherein said control means controls the DC levels of the first and second outputs in response to the comparison signal. ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => 10. An apparatus comprising ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (a) linear image sensor means having a plurality of photoelectric transducer elements arranged in one direction, said linear image sensor means being adapted to parallel output a first output from a plurality of odd-numbered ones of said photoelectric transducer elements and a second output from a plurality of even-numbered ones of said photoelectric transducer elements; ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (b) generating means for combining the first and second outputs to generate a composite picture signal; ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (c) control means for controlling such that DC levels of the first and second outputs input to said generating means substantially coincide with each other; ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (d) illuminating means for illuminating an object by light; ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (e) means for providing a relative displacement between said linear image sensor means and the object in a direction substantially perpendicular to the arranged direction of said plurality of photoelectric transducer elements; ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (f) means for detecting the relative displacement and generating a displacement detection signal whenever a predetermined displacement occurs between said linear image sensor means and the object; ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (g) exposure detecting means having light-receiving means for receiving light from said illuminating means, said exposure detecting means being adapted to detect an exposure of said light-receiving means upon illumination of light from said illuminating means in response to the displacement detection signal and to generate an exposure detection signal representing the detected exposure; and ) Array ( [Name] => Comment [Label] => Claim [Group] => Patent [Data] => (h) normalizing means for normalizing said composite picture signal in response to the exposure detection signal. ) Array ( [Name] => CodeClass [Label] => Current U.S. Class [Group] => Patent [Data] => 35821/315; 35821/319; 35821/328; 35821/326 ) Array ( [Name] => CodeClass [Label] => Current International Class [Group] => Patent [Data] => H04N 314 ) Array ( [Name] => Ref [Label] => Patent References Cited [Group] => Patent [Data] => <searchLink fieldCode="RF" term="%224317134%22">4317134</searchLink> February 1982 Woo<br /><searchLink fieldCode="RF" term="%224432017%22">4432017</searchLink> February 1984 Stoffel<br /><searchLink fieldCode="RF" term="%224438457%22">4438457</searchLink> March 1984 Tandon<br /><searchLink fieldCode="RF" term="%224547676%22">4547676</searchLink> October 1985 Suzuki<br /><searchLink fieldCode="RF" term="%224563708%22">4563708</searchLink> January 1986 Ishibashi ) Array ( [Name] => AuthorEditor [Label] => Primary Examiner [Group] => Patent [Data] => <searchLink fieldCode="ZE" term="%22Masinick%2C+Michael+A%2E%22">Masinick, Michael A.</searchLink> ) Array ( [Name] => AuthorCorporate [Label] => Attorney, Agent or Firm [Group] => Patent [Data] => <searchLink fieldCode="ZG" term="%22Shapiro+and+Shapiro%22">Shapiro and Shapiro</searchLink> ) Array ( [Name] => AN [Label] => Accession Number [Group] => ID [Data] => edspgr.04710816 ) |
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