JPS60190084A - Picture recorder - Google Patents

Abstract

PURPOSE:To record and reproduce both a digital picture signal and a video signal by providing a video storage circuit recording a television picture signal, a digital/analog converter or an analog/digital converter and a signal selecting device selecting one signal from plural input picture signals, to an optical scanning type picture recorder. CONSTITUTION:A control circuit 3 generates a video storage circuit control/ address signal 23 in synchronizing with a sampling signal 22 and stores a video signal digitized by an A/D converter 4 at each picture element to an address corresponding to a position of a picture element in a video storage circuit 5. Further, in synchronizing with the timing of reproduction/recording of a picture on a medium 20 executed by a luminous amount variable light source 13 and a scanning section 19, a digital picture signal stored in a buffer memory circuit 8 is read at each picture element and converted into an analog luminous amount signal 27 by a D/A converter 9. Then the control circuit 3 uses a deviator controlling synchronizing signal 28 and a medium holder controlling/synchronizing signal 29 to record/reproduce a picture on the medium 20.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an image recording device that reproduces and records an image from an image signal, and particularly relates to an image recording device that reproduces and records an image from an image signal, and in particular, a device that scans a minute light beam onto a photosensitive image medium such as a photographic film. By doing so, the present invention relates to a technique that is effective when applied to an optical scanning type image recording device that reproduces and records images.

[Background technology] Recently, with the 11th step of electronics technology, various devices (hereinafter referred to as digital image processing devices) that convert various images into digital signals, perform arithmetic processing, and then play and record them have become available. developed and put into use. As a method for recording output images of a digital image processing device, especially grayscale images such as the output/J images of a computer tomography device, a digital image signal that has been subjected to arithmetic processing is called a television image signal (hereinafter referred to as a video signal). and reproduced on a display cathode ray tube (hereinafter referred to as CRT), and the reproduced fluorescent image is transferred to a photo camera or Multi-Four 1 to Matsu 1.
- A method of recording on photographic film using a device called a camera has been employed in many cases (Reference: Takahashi r. bidirectional computerized tomography Ji979. Shujunsha, P, /17).

However, this method has problems such as a decrease in resolution due to the characteristics of the CRT, optical system, etc., distortion of the image, and nonlinearity of the density ratio 1/. So, recently, I took a photo (゛(),
A small beam of light is two-dimensionally scanned onto a photosensitive image medium (hereinafter simply referred to as medium) such as C.

In addition, an optical scanning image recording device has been developed that reproduces and records images by changing the irradiation light m according to the digital image signal, and has high resolution, little image distortion, and density II technology. The highly accurate playback recording became iJ-Noh (Reference: Niyamamoto et al., ``Laser Beam Image Recorder and Its Applications, Technical Report of J Television Network Society'').

However, in the optical scanning type digital image recording device, an address signal cannot be input, and the recording speed is more than 1000 times slower than the frame frequency of video (approximately 301-17). It has not been possible to rewrite or record video signals, which are the standard output signals of image processing devices.Furthermore, optical scanning image recording devices that play and record video signals have been proposed, but Because this method performs playback and recording at almost the same frequency speed, the number of pixels is limited, and the resolution is inferior to the optical scanning digital image recording device.
, I was unable to record the 100-node digital Ryozo I No. 17.

[Purpose of the invention]

An object of the present invention is to provide an optical scanning image recording device that can input both a digital image processing signal, which is a direct output signal of a digital image processing device, and a video signal, which is a conventional standard output (+1). The objective is to provide technological means.

The above and other objects and novel features of the present invention will become clear from the description of this specification and the accompanying drawings.

[Summary of the invention]

A brief overview of typical inventions disclosed in this application is as follows.

In other words, in the optical scanning image recording device, t? A video storage circuit is provided for storing video signals in a signal processing circuit that creates a light amount signal from an input image signal, so that the playback/recording speed can be set independently of the frame frequency. Next, by providing an analog-to-digital (hereinafter referred to as Δ/D) converter or a digital analogue converter (hereinafter referred to as 1)/Δ), a video (analog image) signal and a digital image can be converted. The signal can be input manually.Furthermore, a selector is provided to select one of the image signals from the two input signals.

Hereinafter, the 4th and W composition of the present invention will be explained together with examples.
i! : To clarify.

In addition, in the purpose of explaining the examples, those who are 41 years old with the same ability will be designated by the same reference numeral (J, its repetition I).
Return ii! 7 [Embodiment 1] FIG. 1 is a block diagram for explaining the configuration of Embodiment 1 of the image recording apparatus of the present invention.

In Figure 1, 1 is a video (No. 8, 2 is a synchronizing signal separation circuit, 4 is a control circuit, 5 is a video storage circuit, 6 is a digital image (a ¥3.7 is a signal selector, 9 is a buffer memory circuit, 9 is a l)/A converter, 1
0 is a signal processing circuit, and the synchronization signal separation circuit 2.0 is a signal processing circuit. A
/I) Converter4. Video record 10 circuits 5. Signal selector7.
Buffer memory circuit 8 and [)/A converter 9 or I? It's becoming I. 11 is a light source.

12 is a light amount modulator, 13 is a variable light source, and light source 1
1 and modulation 4G+12. 14 is a one-dimensional deflector, 15 is a condensing optical system, 16 is a minute beam-dimensional scanner, and 1 and 17 are one-dimensional 1-meter medium conveying medium consisting of the above-mentioned -dimensional deflector 14 and condensing optical system 15. holder, 18
is a medium holder 17j, and 19 is a scanning unit, which is made up of the minute beam-dimensional scan: ff, the device 16°-dimensional one-night transport medium holder 17, and the medium holders 11, 17 movement'A:, :18. There is. 20 is a medium, 21 is a video 4 synchronization signal, 2
2 is a sampling signal, 23 is a video storage circuit control/address signal, 24 is a signal selector control signal, 25 is a buffer memory circuit control/address signal, 26 is a D/A conversion signal, 27 is a light amount signal, and 28 is a deflection signal. 44:) Control/synchronization signal, 29 is reef body holder control/synchronization signal, 30 is selection a;
] No.

Next, the operation of this embodiment will be explained. .

In FIG. 1, a video signal l is input to a signal processing circuit 10 (
/l Synchronous signal '82.1 (t-
and Δ/l) Transformer 4 Nipano] is done. Same 1jl
The signal separation circuit 2 includes the human power source 41 and the video source 1.
Create a video synchronization signal 21 that is the same as the JR direct and horizontal circuit signals included in the [issue],
This signal is input manually to the control circuit 3.

Regulation? The May 11 path 3 generates a sampling signal 22 of a frequency determined by a predetermined pixel size and the frame frequency of the video signal 1 in synchronization with the video synchronization signal 21, and operates the A/D converter 4. , video (1 No. 1 to 1
Converts each pixel to a digital signal. Further, the control circuit 3 inputs the video signal 111 to the sampling signal 22.
(A deep circuit control/address signal 23 is generated, and the video signal digitized pixel by pixel by the A/D converter 4 is stored in the address corresponding to the position of the pixel in the video storage circuit 5.

Note that if the video li'Il 1ilJ signal'';f21 is input from the outside together with the video signal l, the synchronization signal separation circuit 2 is not necessary, and the control circuit 3 generates the video synchronization signal 21 at jφ, In the case of a system in which an external video signal source is controlled, the synchronization signal separation circuit 2 is not necessary.

Next, the control circuit 3 receives the selection signal 30 and generates a transmission selector control signal 24tr, and selects 4tJ 'Sj' 1ffu! ! :">7 is operated, and the input terminal of the buffer memory circuit 8 is outputted from the video storage capacity V85 or the digital mole image signal is transmitted;
, 6 input terminals. The control circuit 3 generates a buffer memory circuit control/address signal 25 using a digital video signal read out by a video storage circuit control/address signal 23 or a digital image (RJ (i) 6) sent according to a predetermined timing. By this,
It is temporarily stored in the buffer and memory circuit 8.

Further, the control circuit 3 synchronizes with the timing of image reproduction/recording onto the medium 20 executed by the variable light amount light source 13 and the scanning unit 19, and performs buffer memo +1 circuit control/address 4n number 25 d 1)/△ A conversion signal 26 is generated and the digital image signal stored in the buffer memory circuit 8 is read out pixel by pixel.

It is converted into an analog premature signal 27 by the D/A converter 9. As mentioned above, the buffer memory circuit 8 receives the digital signal from the video storage circuit 5 into one
Both the timing of reading out each pixel and the timing at which the DigiMole image signal is sent pixel by pixel (hereinafter referred to as the timing of the buffer memory input signal), and the timing of reproducing and recording images onto the medium 20 one by one ( This is a memory circuit that is provided in order to prevent the playback/recording timing (referred to as playback/recording timing) from matching.
In this case, the buffer γ Smori cycle r38 becomes unnecessary.

1: Buffer memory circuit 8) The timing of the J signal and the timing of playback/recording are 1! If the configuration is such that F loading and reading must be performed at the same time, the buffer candy drying time y8
8 is provided with a 1α circuit for the number of NeILs, and while a buffer memory input signal is being stored in one of the circuits, the other memory that has already stored an image signal is Is it a unique circuit?+7. There are four ways to read out the signals. The optical signal 27, which is the output of the signal processing capacity 81.0 (No. 8), is input to the front modulator 12. (According to No. 1 27,
Change the amount of output light. As the light amount e adjuster 12,
Sound yPP SO 1 Rhythmic modulation■: (, electro-optic modulator, magneto-optic modulator shutter, movable diaphragm, movable filter, etc. are considered.As a modulation method, a method that modulates the amplitude of the output light, a method that modulates the amplitude of the output light, In this method, one pixel is further divided into multiple microscopic j
An h' formula or the like is considered in which the output light is divided into i-J+-&, the output light is a pulse train corresponding to the +11 number minute region, and the number of pulses of the pulse train is modulated. In addition, the light intensity variable light source 13 of this embodiment is an external modulation method in which a light m and a modulator 12 are provided outside the light source 11, but the light intensity is changed by an input signal from a tube, a semiconductor laser, etc. to the glow/7. An internal modulation method using a light source that can be used to adjust the amount of >'fi is also considered. The light beam carrying the image signal emitted by the variable light source 13 is deflected by the -dimensional deflector 14 to its ifG
The row direction can be changed in 11.7 steps within one plane. Luminous flux exiting the one-dimensional deflector 14 1:1゜Hayabusa optical system 15
Is,)IB is applied to the area corresponding to the pixel of the medium 201- or the minute area obtained by dividing the pixel, and the medium 201- is
Expose 0 to light. In this way, the −th order I-port polarizer 14
A minute beam-dimensional scanner 16 consisting of a light beam and a condensing optical system 15 focuses a beam of light having a minute cross section carrying image information onto a medium 20.
11 lines are arranged along one straight line (X direction in the figure). The minute light beam -dimensional scanner 16 can also have a power of 41 W by suppressing the Jl+i order of the -dimensional deflector 14 and the condensing optical system 15. Also, light meter/IL variable light source 13 or I? When the output light of ) is tli row) Yl with a small cross-sectional area, the optical system 15 is unnecessary.

Also, -dimensional deflection? ! :: Use 14 or first,
The variable light sources 13 and 41 and the S-end optical system 15 may be rotated around one axis. Here, the -dimensional deflector J4 includes a rotating mirror, a 9-rotation pot mirror, a vibrating mirror, an electro-optic deflector,
An acousto-optic deflection system such as 8:) can be used, and a condensing Y4 lens, a condensing Kawaguchi mirror, etc. can be used as the optical system. Next, the -dimensional transport medium holder 17 is moved WA by a medium holder driver 18 such as an electric motor, and the medium 20 is moved in a direction (Y direction in the figure) perpendicular to the direction of the minute light scanning (X direction in the figure). ). Here, as the -dimensional conveyance medium holder 17, a rotary cylinder, a flat plate conveyor, a medium conveyance position using rollers, etc. can be used.In this way, the scanning section 19 can be By combining scanning and the medium conveyance, a light beam having a minute cross-sectional area carrying image information is scanned two-dimensionally by the medium 20''. The control circuit 1ltli:3 uses the deflector control/synchronization signal 28 and the medium holder control/synchronization signal 29 to generate the 11u nine-dimensional scan by the scanning unit 19 and the light amount signal 27. - Reproduce and record images on the medium 20 in synchronization with the recording timing. Here, the signal that determines the timing of the two-dimensional scanning may be generated on the scanning section 19 side.

[Example potato]

FIG. 2 is a block diagram for explaining the configuration of the signal processing circuit of Embodiment II of the image recording apparatus of the present invention.
By arranging the video storage circuit 5 after the No. 411 selection m7, as compared with Embodiment 1 shown in FIG.
The function of the buffer memory circuit 8 has a video storage capacity of 17fi.
2 H (By making it also serve as.

+! 1. ! 'l' 1 circuit i, 717 missing to °9 is 98 1-1, control 41 circuit: (is 1'' Deo storage path control/address signal S+ 9: (by-) τ,
JF input of the digitized video signal synchronized with the video record 1α time V85 and the video record 111J signal 21,
Same timing as the digital image signal 6 is sent! I
It operates in the format of IJ l, digital, and digital images (No. 5 (i 1; 11, included, readout of digitized 4t iFp signals synchronized with the timing of the playback/recording). Must-have signal processing I in this embodiment + 1!
! The light amount signal 27, which is the IJ signal output from the circuit, is the 1191st
, 1ζ15)+11,0.1I" is input to the variable light source 13, and the control circuit 1 operates the scanning section 19, thereby executing the reproduction of l; [Embodiment 111] FIG. 3 shows the example +11 of the image recording apparatus of the present invention!
This is a block diagram for explaining the configuration of the f-E processing circuit. ]/△ conversion 9 is placed before the f word selection a) 7, and the signal selector 7 is used to select the analog signal IJ-+! ', :'rL, -, video storage circuit! ``IL 'j'zu1'' game signal storage circuit L
Figure Lr 7. i;1
・Example II tl) A/11 conversion:! ::4
As disclosed by the present application, the effect is as follows:

According to new technical measures, the following effects can be obtained:”-
＞ hs″″1″ 1 (1) In the image recording device, from the input image signal: A signal processing time to create a signal in light y: + L:, video image 4 (t44 video storage capacity to record the signal e7) ￥1'I can be used to set the playback/recording speed independently of the frame frequency. By Keri・i′(
C) A selector should be provided in the image signal so that one of the image signals from the two human power signals can be selected. Therefore, 1, the digital image processing signal J, which is the direct output signal of the digital image processing device, j!71 of subordinate 1
i (desired output signal?') - It is possible to use both sides of a certain video signal.

(2) (1) L-Y), the input video signal and 17 are limited to the output signal of the digital image processing device A1.

Pass: (゛σ1 child review signal, X-ray television digital device! 1% IJ signal, VTR device output signal, etc. can also be input.

(,'<) 1) According to item (1), the image from the DigiMole image signal and the images from the various video signals are juxtaposed on one kv2 body Hi No. J 1. Note G Oru (Sanno, J11! Inserted both images of the other in one image '7-IL!
(/l) Above (+') 1. From r, it is possible to enlarge or reduce the image of the various video signals to any size and reproduce and record it. (5) From the previous 'f, j', (1), one image The ability to juxtapose and record images (based on a plurality of video signals) on a medium can also be performed.

Hereinafter, the present invention has been specifically explained with reference to examples. However, the present invention is not limited to the examples described in 1);j, and it goes without saying that various changes can be made without departing from the gist thereof. For example, Ichiki's painting record and design RV? The signal/processing circuit that constitutes the signal processing circuit has various configurations in which the video quality circuit 5. The method of realizing the function of the scanning section of the image recording apparatus of the present invention is as follows. In addition to the method of transporting the medium in the direction perpendicular to scanning, there is also a method of transporting the medium two-dimensionally by fixing the single-point light weight, and a method of transporting the medium two-dimensionally with a single-point light beam. There are 11 types in which the medium is fixed, but no matter which type of scanning section is used, the image recording apparatus of the present invention can be realized by using the scanning section, variable light amount light source, and control circuit (v1). 411 can be made 8

[Brief explanation of the drawing]

FIG. 1 is a plotter diagram for explaining the configuration of Embodiment 1 of the image recording apparatus of the present invention, and FIG. 2 is a plotter diagram for explaining the configuration of Embodiment 2 of the image recorder G'4A of the present invention. Block Diagram. FIG. 3 shows (,
In the figure, 1...video (no. 4), 2...synchronization (d) bone separation circuit, 3... control circuit, 4... A/ n converter, 5
...Video record 1 circuit, (S...Digital image signal, 7...Signal selector, Mouth...Buffer candy drying circuit,
9...n/A converter, 10...signal/processing circuit, 1
1... Light source, 12... Light amount modulator, 13... M/
;LlejJ variable light source, 14...-dimensional deflector, 15
... Collection) 11'; Optical system, 1 (S... Minute light beam - dimensional scanner, 17... - Dimensional transport 6 body holder, J8...
・Media holder drive J111 device, 1! ]...Scanning section, 20
...Media, 21...Video synchronization Shinso, 22...Pal
23...Video storage circuit control/address signal, 24...Signal selection 411111 control signal, 25...Buffer memory circuit control/address signal,
2C;...n/A conversion signal, 27...light''(n
No. 4'f, 28...Deflector control/synchronization signal, 29...
- Medium holder control/synchronization signal, 30... selection signal. Agent 4i-Physician Shuki Akita

Claims (1)

[Claims] 1. A variable light amount light source, a scanning unit that illuminates a minute area of the photosensitive image medium 1- with a light beam from the light source and scans the irradiated area secondarily on the medium; y/; 1
lII+r variable light source L:, yi', video storage for recording television image signals in an image recording device comprising a control circuit for controlling the scanning section and the signal processing circuit, such as a signal processing circuit for coupling the clear signal; A circuit, a digital-to-analog converter for converting a digital image signal into an analog signal (or an analog-to-digital converter for converting an analog signal into a digital signal, and a signal selection H for selecting one signal from a plurality of human-powered image signals) An image recording device characterized in that: + is provided with rL.