WO1991014336A1 - Electronic printing camera - Google Patents
Electronic printing camera Download PDFInfo
- Publication number
- WO1991014336A1 WO1991014336A1 PCT/JP1991/000335 JP9100335W WO9114336A1 WO 1991014336 A1 WO1991014336 A1 WO 1991014336A1 JP 9100335 W JP9100335 W JP 9100335W WO 9114336 A1 WO9114336 A1 WO 9114336A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image
- printer
- image data
- ram
- digital image
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
- H04N1/0405—Different formats, e.g. A3 and A4
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/21—Intermediate information storage
- H04N1/2104—Intermediate information storage for one or a few pictures
- H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/21—Intermediate information storage
- H04N1/2104—Intermediate information storage for one or a few pictures
- H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
- H04N1/2154—Intermediate information storage for one or a few pictures using still video cameras the still video camera incorporating a hardcopy reproducing device, e.g. a printer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2101/00—Still video cameras
Definitions
- the present invention relates to an electronic camera, and more particularly, to an electronic camera capable of converting an optical image of a subject obtained by an optical lens into an electric signal and printing the electric signal with a thermal printer.
- an electronic camera of this type an optical image of a subject obtained by an optical lens is converted into an electric signal, which is then subjected to editing processing such as enlargement or reduction, and the image is reproduced and displayed by an electronic viewfinder.
- An electronic camera has been proposed in which the displayed image is printed by a printer (Japanese Patent Laid-Open No. 61-189785).
- a bolaloid camera or the like is known, but printing with this type of camera is performed using photographic paper using a special photosensitive material. Is not only expensive to print, it is difficult to store and reprint the image, and it is impossible to edit, enlarge, reduce, or trim the image. It is.
- the optical image is converted to an electric signal, which is then subjected to editing processing such as enlargement and reduction, and the image is reproduced by the electronic viewfinder. It was proposed to display the information and print it using a printer.
- An object of the present invention is to convert an optical image of a subject obtained by an imaging lens into an electric signal, temporarily store and hold the digital image data converted into the electric signal, and immediately Print out as a simple monitor image, check the captured image content, and then perform the processing such as enlargement, reduction, trimming, negative, or positive conversion on the stored image data, and then request again.
- Image reprinting can be performed repeatedly in various ways, which eliminates the need to check the image content using an electronic viewfinder or the like as in the past, realizing low cost, simple, quick, and versatile image printing. To provide an electronic print camera that can do
- An electronic print camera converts an optical image of a subject obtained by an imaging lens into an electric signal by a solid-state image sensor and converts it into an image signal by an analog processing circuit. Is converted to digital image data by an AZD converter, stored and held in RAM, and then stored and held in RAM in an electronic print camera configured to output and print this digital image data to a printer.
- Storage means for setting various image processing programs for variously processing the digital image data obtained and outputting them to the printer A plurality of push-button switches for selecting an image processing program set in the storage and holding means; and outputting digital image data stored and stored in the RAM to the printer based on the selected image processing program. And control means for controlling the driving of the printer.
- the printer can use a thermal printer that performs printing by reacting thermal paper.
- the control means comprises a CPU, reads out a predetermined image processing program from a ROM in which various image processing programs are set, based on a selection operation of a push button switch, and stores digital image data stored and held in a RAM. Can be processed and controlled so that it is output to the printer and a predetermined image is printed.
- FIG. 1 is a schematic external view showing an embodiment of an electronic print camera according to the present invention.
- FIG. 2 is a block diagram showing an internal configuration and an image processing system of the electronic print camera according to the present invention.
- FIG. 3 is an explanatory diagram showing an area gradation method which is an embodiment of a printing method in the electronic print camera according to the present invention
- FIG. 4 is an explanatory diagram showing a cumulative gradation method which is another embodiment of the printing method in the electronic print camera according to the present invention
- FIG. 5 is an explanatory diagram showing a format of a print output image on print paper in the electronic print camera according to the present invention.
- BEST MODE FOR CARRYING OUT THE INVENTION an embodiment of an electronic print camera according to the present invention will be described in detail with reference to the accompanying drawings.
- FIG. 1 is a schematic configuration diagram showing the appearance of an embodiment of an electronic print camera according to the present invention.
- reference numeral 10 denotes a power switch
- 12 denotes a pushbutton switch for a shutter
- 14 denotes a pushbutton switch for printing
- 16, 18, 20, 22, and 24 denote various image processing.
- Push button switch, 26 is an imaging lens
- 28 is a print paper storage section
- 30 is a paper exchange opening / closing lid
- 32 is a print paper
- 34 is a cutter
- 36 is a battery storage section
- 38 is a battery.
- Each shows a replacement opening / closing lid.
- a battery for obtaining a predetermined power is stored in the battery storage section 36, and print paper such as thermal paper is set in the print paper storage section 28.
- print paper such as thermal paper is set in the print paper storage section 28.
- a print sheet 32 on which a predetermined subject image 40 is printed is fed out from the side of the unit 28. In this way, the image of the subject once photographed can be temporarily held, and this can be deformed as desired by operating any one of the various image processing push button switches 16 to 24. A reproduced print of the image can be obtained.
- FIG. 2 shows one embodiment of the electronic circuit of the electronic print camera of the present embodiment, and basically, an analog signal processing block 42, a digital signal processing block 44, and It comprises a power supply circuit 46 and a printer 48.
- the analog signal processing block 42 includes a solid-state image sensor 50, inputs an optical image of a subject obtained by the imaging lens 26, converts the optical image into an electric signal for each pixel, and converts the analog signal into an analog signal. It is configured to output as an image signal via 52. Generally, MOS-type devices Alternatively, it is configured to form an image of one screen using data composed of, for example, 244 ⁇ 244 pixels using a CCD element. An automatic aperture mechanism provided for the imaging lens 26 by an aperture control circuit 54 based on the image signal.
- the image signal is converted into, for example, a 4-bit digital signal by the AZD conversion circuit 58.
- the digital signal processing block 44 includes a static RAM 60 that stores and holds the image signal converted into the digital signal by the AZD conversion circuit 58.
- the RAM 60 is configured to have a capacity of 256 Kbits capable of storing data for the entire screen of the solid-state imaging device sensor 50 composed of, for example, 244 ⁇ 244 pixels.
- the image data stored and held in the RAM 60 is output from the printer 48 via the CPU 62 in accordance with the program set in the ROM 64 in advance.
- the ROM 64 a program relating to various image processing described later is set, and the ROM 64 is provided with a switch board provided with the various image processing pushbutton switches 16, 18, 20, 22, and 24 described above.
- the digital signal processing block 44 is provided with a system control circuit 68.
- the control circuit 68 outputs a predetermined read-out timing signal to extract data of each pixel from the solid-state image sensor 50. AZD conversion to the digital image data of these data is performed, or a write timing signal is output to write the digital image data to the RAM 60, that is, to store and hold the digital image data.
- the power supply circuit 46 includes a battery 70 that generates a voltage of, for example, 12 V. The generated voltage is used to drive and control the voltage 9 V and the digital signal processing block 44 for driving and controlling the analog signal processing block 42.
- the power supply circuit for the RAM 60 is configured to generate a required memory backup voltage so as to maintain the memory operation even when the power switch 10 is in an OFF state. Further, a capacitor 72 is provided as a backup for the memory when the power is lost, for example, when replacing the battery.
- Reference numeral 74 denotes a variable resistor, which is configured to select a pulse width to be output to the printer 48 and adjust the density of a print screen.
- Reference numeral 76 denotes a buzzer, which is configured to generate an operating sound or a hairpin report when a push button switch is operated or when an abnormal state of the printer occurs.
- the 24 ⁇ 24 pixel data is sequentially read out at a timing of 60 seconds, and is converted into an image signal by the analog signal processing circuit 52. Then, this image signal is converted into 4-bit digital image data by the AZD conversion circuit 58. At this time, the aperture control circuit 54 controls the aperture amount of the automatic aperture mechanism 56 so that the average value of the image signal is always within a certain level range. These series of operations are repeated at a cycle of 1Z60 seconds until one of the following stop operations is performed.
- Digital image data corresponding to the subject image for the entire screen of 50 It is written and stored. Subsequently, the contents of the digital image data written in the RAM 60 are output from the printer 48 as monitor images. Then, by checking the output monitor image and operating the print push button switch 14, the contents of the digital image data written in the RAM 60 are set in the ROM 64. Output from the printer 48 according to the image processing program. When the output of the printer 48 is completed, the voltage 6 V supplied to the printer 48 becomes 0 V. Further, when the push button switch 16 is operated at the time of photographing the subject, a backlight correction signal is output to the aperture control circuit 54, and the aperture of the automatic aperture mechanism 56 can be made larger than usual. Therefore, by operating the shutter push-button switch 12 while pressing the push-button switch 16, the backlight-corrected subject image can be written to the RAM 60.
- the printer 48 has a paper out detection signal, a paper replacement opening / closing lid 30 open detection signal, and a thermal head overheat (in the case of about 57 ° C or more, ), The operation of the printer 48 is stopped when a signal indicating the abnormal state of the printer 48, which is composed of the detection signals of the above, is detected.
- the electronic print camera of the present invention is configured so that two types of gradation expression can be selected for the print output image. That is, in the present invention, the area gradation method shown in FIG. 3 and the cumulative gradation method shown in FIG. 4 are employed.
- the density is set from 1 to 16 and one pixel is composed of 4 dots, and the number of energization of each dot and its distribution are changed. Is set. That is, at the density of 1, one energizing dot D is configured as one dot, and the non-energized dot DE () is configured as three dots, and represents the whitest pixel. Up to the concentration 4, the one-time energizing dot DE 1 increases by one dot. Concentration 5 is defined as two energizing dots D E 2 and one energizing dot D E 1 Is composed of three dots.
- the two energizing dots D E2 is gradually increased by one dot Todzu'.
- Concentration 9 the three current dot D E3 and 1 dot, and the two current dot D E2 as 3 dots.
- the three power Dotsu preparative D E3 goes increasing 1 dot Todzu'.
- Concentration 13 the four through conductive dots D E4 and 1 dot, Ru is configured to 3 times current dot D E3 as 3 dots.
- the concentration of 16 represents the most black pixels.
- the one-time energizing dot D E1 is the color development at an energy of about 1Z4 of the lithography energies for saturating the thermal paper as the printing paper with a color of about 1Z4, which is about 14 blacks of the saturated colouration.
- two current dot D E2 is overlapped two of the once through ⁇ dot D E1, three energizing dots D £ 3 likewise overlapped three times the one energized dot D E1, its
- the four-time energizing dot D E4 is a four-time overlap of the one-time energizing dot D. Therefore, in the case of the area gradation method, there is an advantage that the printing time is shortened because the number of times of energizing the dots is small.
- the number of energizations is changed from density 1 to density 16 for each dot by dividing it into 16 times. Therefore, the density 1 is composed of a single energizing dot, is a color development at an energy of about 116 of the lithographer for saturated coloring of the thermal paper, and is about 1Z16 of the saturated coloring. In the same way, it is achieved by repeating the number of times of energization dots one by one from concentration 2 to 16. Therefore, in the case of the cumulative gradation method, although the printing time is slow, there is an advantage that fine printing can be performed.
- the following three types of print image formats are set on the print paper 32.
- the monitor image output when the shutter button switch 12 is operated is there. It is composed of 112 x 143 dots, and the image size is 14 halls x 19 halls.
- the density is such that the dot of density 1 and density 2 of the cumulative gradation is set to density 2, the dot of density 3 and density 4 is set to density 4, and so on. Set to.
- the print push button switch 14 When the print push button switch 14 is pressed after the monitor image is printed, the image of the entire subject is output. It consists of 448 x 570 dots, and the image size is 56 thigh x 76 ⁇ . Density is set so that printing is performed with the same cumulative gradation as above and with 8 gradations. In this case, it can be configured to print in area gradation.
- the external contour line 80 is composed of one dot row, and is represented by an intermediate gradation of density 8 of the accumulated gradation.
- a grid dot 82 consisting of one dot set at a pitch of 4 mm in the vertical and horizontal directions is displayed in the margin other than the image. This grid dot 82 is also represented by the intermediate gradation of the density 8 of the accumulated gradation similarly to the outer contour line 80.
- the arrow indicates the feed direction of the print paper 32, and P A , ⁇ ⁇ , and P (; indicate the print operation start position for each of the print images A, B, and C.
- ⁇ to ⁇ ⁇ 2, ⁇ 1 to ⁇ ⁇ 9, ⁇ (; ⁇ to ⁇ (; ⁇ indicate the positions from the start to the end of the print of the subject images of the print images A, ⁇ , and C, respectively.
- AF 2 and AF 3 indicate the automatic feed length after printing is completed.
- AF 2 and AF 3 indicate the automatic feed length after printing is completed.
- F 4 is the feed length of the print paper 32 when the push button switch 18 is kept pressed Indicates one.
- CM1 is a cumulative gradation comment, for example, displayed as “Fine”. In the case of area gradation, nothing is displayed.
- CM2 is a comment for the number of print screens, and the number is displayed as a serial number. The display function of this CM2 is set when the power switch 10 is set to the 0 N state while pressing the push button switch 22, and the numbers from ⁇ ⁇ to 99 are displayed. When the power switch 10 is turned on while pressing the push button switch 22 again, the display function of the CM 2 is released and the display is not performed.
- CM3 is a mini image comment, for example, “Mi ni” is displayed.
- CM4 is a heating warning comment.If the temperature of the head becomes too high, for example, “0.
- C CM 5 is a battery life indicator that indicates a decrease in the battery's charge capacity, and is set so that the display when the charge capacity of the battery is no longer sufficient to guarantee the image quality of the printed output can be clearly displayed. I do.
- CM6 is an image processing comment, and the following eight types of image processing comments are set.
- D ig it Converts 16 gradations to two gradations of white and black while pressing switch 22 and prints. Press switch 14.
- Z 0 omR Enlarge the right side from the center line (double the ratio while pressing area switch 24), change the vertical and horizontal directions, and press switch 18. Replace and print.
- Z o 0 m L Enlarge the left side from the center line (double the ratio while pressing area switch 24), change the vertical and horizontal directions, and press switch 20. Replace and print.
- the push button switch 20 is operated during the print output, the print output is stopped, the print paper is fed by itself, and then the operation of the printer is stopped.
- the push button switch 20 is operated at a time other than the print output, the previously set image processing designation content is canceled.
- an operation sound is generated by a buzzer when the push button switch is operated.However, when the power switch 10 is turned on while the push button switch 20 is being pressed, the operation sound can be turned off. it can. Then, when the power switch 10 is turned on while pressing the push button switch 20, the operation sound by the buzzer can be generated again.
- the electronic print camera according to the present invention outputs the monitor image to the print paper immediately by operating the shutter push button switch 12 with the imaging lens facing the subject to change the shooting state. You can check. For this reason, according to the electronic print camera of the present invention, the photographing is performed immediately, compared to a case where the photographer performs photographing while confirming the subject using the finder II as in the conventional camera and then outputs the image. Since it is possible to confirm the subject image, it is possible to immediately determine improper or improper photographing, and then process the image into a required image and output it to print paper.
- the electronic print camera of the present invention can process the subject image confirmed on the monitor image into various preset images by computer processing and print the same, so that the subject image can be simply processed like a conventional camera. Not only can it be faithfully reproduced, but it can be widely used as a design for various subject images or as visual data for various businesses.
- the electronic print camera of the present invention does not require a finder mechanism which is indispensable to conventional cameras, so that the overall structure can be made as small as possible to make it portable and convenient, and can be provided at low cost. It is.
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/934,444 US5835136A (en) | 1990-03-12 | 1991-03-12 | Electronic printer camera |
EP91905524A EP0574581B1 (en) | 1990-03-12 | 1991-03-12 | Electronic printing camera |
DE69122128T DE69122128T2 (de) | 1990-03-12 | 1991-03-12 | Elektronische druckkamera |
CA2078113A CA2078113A1 (en) | 1990-03-12 | 1991-03-12 | Electric printing camera |
KR1019920702214A KR100211895B1 (ko) | 1990-03-12 | 1991-03-12 | 전자프린트 카메라 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2060293A JPH03261276A (ja) | 1990-03-12 | 1990-03-12 | 電子カメラおよびその画像印刷方法 |
JP2/60293 | 1990-03-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991014336A1 true WO1991014336A1 (en) | 1991-09-19 |
Family
ID=13137968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1991/000335 WO1991014336A1 (en) | 1990-03-12 | 1991-03-12 | Electronic printing camera |
Country Status (8)
Country | Link |
---|---|
US (1) | US5835136A (ja) |
EP (1) | EP0574581B1 (ja) |
JP (1) | JPH03261276A (ja) |
KR (1) | KR100211895B1 (ja) |
AU (1) | AU7440891A (ja) |
CA (1) | CA2078113A1 (ja) |
DE (1) | DE69122128T2 (ja) |
WO (1) | WO1991014336A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
AU7440891A (en) | 1991-10-10 |
DE69122128D1 (de) | 1996-10-17 |
KR100211895B1 (ko) | 1999-08-02 |
US5835136A (en) | 1998-11-10 |
CA2078113A1 (en) | 1991-09-19 |
DE69122128T2 (de) | 1997-04-03 |
EP0574581A1 (en) | 1993-12-22 |
KR930701050A (ko) | 1993-03-16 |
EP0574581A4 (en) | 1993-02-18 |
JPH03261276A (ja) | 1991-11-21 |
EP0574581B1 (en) | 1996-09-11 |
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