KR20000049967A - Timing pulse generator driving CCD sensor of majority at once in CCD video camera which is able to multi-devision photogrphing - Google Patents

Abstract

PURPOSE: A timing pulse generator for driving plurality of CCD sensors of a video camera of multi division picture capability simultaneously is provided to drive plurality of CCD sensors at a time. CONSTITUTION: A timing pulse generator for driving a plurality of CCD(charge coupled device) sensors of a video camera of multi division picture capability simultaneously includes a clock(43), a divider(44), a scan method selector(45), an illumination detector(40), an up/down counter(41), a timing pulse generator(50), and a counter(51,53). The clock(43) generates reference clock frequency. The divider(44) divides the clock frequency into two and assembles the divided result into a predetermined signal. The scan method selector(45) selects the scanning type. The illumination detector(40) detects the illumination detected from the CCD sensor. The up/down counter(41) up-counts/down-counts the clock frequency according to the signal from the illumination detector. The timing pulse generator(50) generates various timing pulses according to the output of the up/down counter. The counter(51,53) counts the clock frequency to adjust the illumination of the CCD sensor.

Description

Timing pulse generator driving CCD sensor of majority at once in CCD video camera which is able to multi-devision photogrphing}

The present invention relates to a timing pulse generator for driving multiple CCD sensors at the same time in a CCD video camera capable of multi-segment shooting. In particular, one or two video cameras are mounted on one video camera to be photographed by each CCD sensor. The present invention relates to a timing pulse generator capable of driving a plurality of CCD sensors so that the divided images can be divided into two or four portions at the same time and displayed on the screen.

In general, most cameras that handle video signals capture images using only one sensor in front of the body. When it is necessary to monitor or inspect the situation at the same time, each camera is installed in the required part, and the output signal from each camera is properly time-divided and displayed on the monitor.

In order to implement such a function, it is possible to use a device that displays time-divided video signals from individual cameras and displays them in one monitor, and a monitor that can receive multiple camera signals at the same time instead of a general monitor. A method using a monitor has been used.

The general camera configuration is divided into a CCD sensor, a timing pulse generator, and a video processor, and a single camera is made by integrating accessory chips that interface with each part. Of course, the signal output from the camera is displayed through one monitor.

However, if you want to observe several places at the same time on the screen of the monitor, a device called a screen splitter must be additionally installed at the output of the camera. Such a screen splitter receives an input from as many cameras as desired to split a screen and divides the screen to output an image to a monitor.

In addition, if the user wants to divide the monitor into four, one image is output on one monitor, and four images must be displayed on one monitor. Can only display four screens on one monitor. That is, the data of the image is reduced to the original quarter.

Accordingly, an object of the present invention is to solve the above problems, and an object of the present invention is to equip a single camera with a plurality of image sensors so that a plurality of images can be taken. It is an object of the present invention to provide a timing pulse generator for driving a plurality of CCD sensors at the same time in a CCD video camera capable of multi-segment imaging that can be implemented by a driving circuit.

The present invention as a technical idea for achieving the object of the present invention

A video sensor using two or four CCD sensors, a CCD sensor capable of detecting an image, a timing pulse generator for generating various timing pulses for driving the CCD sensor, and a video signal output from the CCD sensor In the timing pulse generator for driving the CCD sensor by the driving means of the video processor,

A clock unit generating a reference clock frequency;

A divider for dividing the clock frequency generated from the clock unit into two and combining the clock frequencies to output predetermined signals;

A scan line method selection unit for selecting a scan line method;

An illumination intensity detection unit for comparing and detecting an illumination intensity detected by a plurality of CCD sensors;

An up / down counter for counting up / down of a clock frequency according to the comparison detection signal of the illuminance detection unit;

A timing pulse generator for generating various timing pulses according to the divider, the scan line method selector, and the signals output from the up and down counters; And

A plurality of CCD sensors at the same time in the CCD video camera capable of multi-division shooting, characterized in that it comprises a counter for counting the clock frequency for adjusting the illumination amount of the CCD sensor according to the timing pulse signal output from the timing pulse generator It provides a timing pulse generator for driving.

1 is a block diagram of a video camera having four CCD sensors according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an internal structure of the timing pulse generator shown in FIG. 1.

3 is a block diagram of a video camera having two CCD sensors according to an embodiment of the present invention.

4 is a diagram illustrating an internal structure of a timing pulse generator shown in FIG. 3.

FIG. 5 is a waveform diagram showing a flow of charges accumulated in a CCD sensor in a horizontal signal for driving each CCD sensor shown in FIG.

FIG. 6 is a waveform diagram comparing the flow of an image signal output from a CCD sensor according to time zones in a horizontal signal for driving each CCD sensor shown in FIG.

7 is a waveform diagram of a vertical signal according to an operation time of the timing pulse generator shown in FIG. 1.

FIG. 8 is a waveform diagram illustrating a flow of a vertical drive pulse and a horizontal drive pulse in a 1H period according to an operation time of the timing pulse generator shown in FIG. 1.

FIG. 9 is a waveform diagram illustrating a vertical synchronization signal flow for concealing a signal of an optical part of a third and fourth CCD sensor unit in the timing pulse generator shown in FIG.

10 is a timing diagram of a vertical drive signal and a horizontal drive signal of charge supplied to the timing pulse generator shown in FIG.

FIG. 11 is a diagram illustrating a comparison between a horizontal drive signal, a vertical drive signal, and a group A and B group horizontal signals in which charge of the timing pulse generator shown in FIG. 3 is moved;

<Description of the code | symbol about the principal part of drawing>

10: CCD sensor unit 20: condenser unit

30: switching unit 40: roughness detection unit

41: up / down counter 42: counter

43: clock portion 44: divider

45: scan method selector 50: timing pulse generator

51: 1212 Counter 52: Multiplexer

53: 606 counter 54: 625 and 525 counter

55: bit operator 56: memory table

60: horizontal and vertical drive unit 70: video processor unit

80: monitor section 50a to 50d: input / output terminal (PIN)

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the embodiment of the present invention will be described in detail.

1 is a block diagram of a video camera having four CCD sensors according to an embodiment of the present invention.

Referring to the overall block diagram of the CCD video camera shown in FIG. 1, the individual CCD sensor unit 10 is connected to the video processor unit 70 through the condenser unit 20 and the switching unit 30. The video processor unit 70 is connected to the monitor unit 80.

In addition, the CCD sensor unit 20 is connected to each of the illumination intensity detection unit 40, the illumination intensity detection unit 70 is connected to the timing pulse generator 50. The timing pulse generator 80 is connected to the respective horizontal and vertical driving units 60, respectively.

First, the CCD sensor unit 10 is divided into four first, second, third, and fourth CCD sensor units 12 so as to be divided into four video cameras one by one in different directions by the driving signals of the horizontal and vertical driving units 60. , 14, 16, and 18) to sense target positions in different directions, one by one.

The switching unit 30 switches on / off the image output signal detected by the first, second, third and fourth CCD sensors 12, 14, 16, and 18 according to the accumulated charge transfer signal of the condenser unit 20. (switching) role.

The illuminance detection unit 40 is a comparator for detecting the illuminance of the aperture shutter. The illuminance detection unit 40 detects only the iris level of the image signal output from the first, second, third, and fourth CCD sensors 12, 14, 16, and 18, and then measures the illuminance level. The comparison detection level signal is output to the timing pulse generator 50 in comparison with the voltage level.

The timing pulse generator 50 generates various timing pulses necessary for driving the horizontal and vertical drivers 60 to drive the CCD sensor unit 10, and compares and detects the iris level output from the illuminance detector 40. The signal automatically controls the opening and closing speed of the aperture shutter of the CCD video camera to maintain a constant iris level at all times.

In addition, various output terminal signals generated from the timing pulse generator 50, for example, SYNC, BLK, CLP, SHP, SHD, etc., are output to the video processor 70.

The horizontal and vertical driving unit 60 includes four first, second, third and fourth horizontal and vertical driving units 62, 64, 66 and 68 to drive the four CCD sensor units 10 in the horizontal and vertical directions. consist of.

The video processor 70 receives an image signal output from the first, second, third, and fourth CCD sensors 12, 14, 16, and 18 and the timing pulse generator 50, processes the image signal, and monitors the image signal. )

The monitor unit 80 expresses the image signal processed by the video processor unit 70 on the screen through a monitor. Of course, when there are two CCD sensors installed in the video camera, it is expressed to be divided into two through the screen of the monitor unit 80.

Next, the operation according to the configuration of the CCD video camera shown in FIG. 1 will be described.

A part of the image signal output from each CCD sensor unit 10 is directly input to the video processor unit 70 through the condenser unit 20 and the switching unit 30.

In addition, the other part of the image signal output from each CCD sensor unit 10 extracts the iris signal of the image signal, compares it with the reference voltage, and inputs it to the timing pulse generator 80.

That is, the timing pulse generator 50 constantly adjusts the amount of light coming from the CCD sensor unit 10 according to the brightness of each target position. When the light is too bright, the opening and closing degree of the aperture shutter of the video camera can be quickly increased. Emits a lot of light.

In addition, when the light is too dark, the opening and closing speed of the aperture shutter of the video camera is slowed down to expose the light to make it appear as bright as possible.

In addition, the image signals sensed by the CCD sensor unit 10 are finally input to the video processor unit 40, and the image signals inputted from them are image signal processed by the video processor unit 40 to monitor the unit 80. By outputting the result, the image of the target is divided into four (or two) on the screen of the monitor 80.

FIG. 2 is a diagram illustrating an internal structure of the timing pulse generator shown in FIG. 1.

Referring to the internal structure diagram of the timing pulse generator shown in FIG. 2, 1212 counters 51, multiplexers 52, 606 counters 53, 625, and 525 counters are included in the timing pulse generator 50. (54), a bit operator (55) and a memory table (56).

One end of the timing pulse generator 50 is connected with an up / down counter 41, an illumination intensity detector 40, a counter 42, and the other end is provided with a clock unit clk, 43, The divider 44 and the scan method selector 45 are connected to each other.

In this case, four AIR, BIR, CIR, and DIR signals are input to the illuminance detection unit 40, and four A × SUB, B × SUB, C × SUB, and D × SUB signals are output to the counter 42. .

In addition, the output signal terminal generated from the timing pulse generator 50 has H1 (A, B, C, D), H2 (A, B, C, D) output terminal 50a, and V1 (A, B, C). D), V2 (A, B, C, D), V3 (A, B, C, D), V4 (A, B, C, D), SG1 (A, B, C, D), SG2 ( A, B, C, D) output stage 50b and SYNC, CLP, BLK, HD, VD output stage 50c are output. VDD and GND are input to the input terminal of the timing pulse generator 50.

Next, the operation of each component connected from the timing pulse generator will be described.

First, the clock unit 43 receives a clock frequency corresponding to twice the reference clock frequency, and the divider 44 receives the RG (A, B, C, D) by a combination with the clock frequency divided by two. Generate waveforms of SHP and SHD signals.

The scan method selector 45 includes EIA, NTSC, CCIR, and PAL methods. When the EIA / NTSC method is used, 525 injection players are used. When the CCIR / PAL method is used, 625 injection players are used. .

More specifically, in the case of an interlace, the EIA (NTSC) method outputs 30 frames (60 fields) per second, and the CCIR (PAL) method sends 25 frames (50 fields) in an interlace mode. The EIA scans 525 scan lines per frame, and 625 scan lines in the CCIR method.

When the scanning method of the video signal is the EIA method, the time required for passing one scan line is about 63.5us, and when it is one field, it takes about 16.7ms.

The timing pulse generator 50 for driving as described above generates and outputs a signal capable of reading the charge accumulated in each cell in the CCD sensor unit for 16.7 ms, and transmits the read charge to the horizontal register. Approximately 63.5us makes one vertical transmission signal, that is, signals of V1, V2, V3, and V4.

In addition, it makes the horizontal transfer signal H1, H2 signal for transferring the charge in the horizontal register. In addition to this, it generates various signals such as SYNC, reset gate signal to remove remaining uncharged charge, and sub signal to control the opening and closing of the shutter.

H1 (A, B, C, D) and H2 (A, B, C, D) output terminals 50a are output signals transmitted from the CCD sensor unit 10 to the video processor 70, respectively. A pulse of a type that alternately operates in accordance with the timing at which 10 is driven is output.

V1 (A, B, C, D), V2 (A, B, C, D), V3 (A, B, C, D), V4 (A, B, C, D), SG1 (A, B, C, D) and SG2 (A, B, C, D) V1, V2, V3, and V4 signals at the output stage 50b vertically move the image data output from the CCD sensor, and the SG1 and SG2 signals are CCD signals. The image data output from the sensor is read from each pixel of the sensor at one time, and a signal is transferred to the vertical driving unit.

In the SYNC, CLP, BLK, HD and VD output stages 50c, SYNC is a sync signal of the video camera, CLP is a signal for setting the reference black level of the data output from the CCD sensor unit, and BLK is a signal of the data output from the CCD sensor unit. The blank signal, HD is a horizontal synchronization signal, and VD is a vertical synchronization signal, and represents a signal input from the timing pulse generator 50 to the video processor 70.

The signals input to the illuminance detection unit 40, that is, the AIR, BIR, CIR, and DIR signals, receive a signal detected from an external comparator as a signal for adjusting the shutter opening and closing speed of the aperture.

The signals received from the illuminance detection unit 40 are processed independently of each other to calculate the number of pulses that can be turned on and off of the aperture, and then through A × SUB, B × SUB, C × SUB, and D × SUB. Output

Such signals are made by counting at 1212 counters 51, 606 counters 53, 625, and 525 counters 54 in the timing pulse generator 50, and these signals are timings for driving the respective CCD sensors. The signals are combined in the multiplexer 52 and output after each signal is added or subtracted.

The memory table 56 stores data related to L level or H level of various signals according to the EIA, NTSC, CCIR, and PAL schemes.

3 is a block diagram of a video camera having two CCD sensors according to an embodiment of the present invention.

Referring to the block diagram of the CCD video camera shown in FIG. 3, the CCD sensor unit 10 including the first and the first CCD sensor units 12 and 14 passes through the condenser unit 20 and the switching unit 30. It is connected to the processor unit 70. The video processor unit 70 is connected to the monitor unit 80.

In addition, the CCD sensor unit 20 is connected to the illumination intensity detection unit 40 consisting of the first and second illumination intensity detection units 42 and 44, respectively, the illumination intensity detection unit 70 is a timing pulse generator ( 50). The timing pulse generator 80 is connected to each of the horizontal and vertical driving units 10, respectively.

The configuration and operation of each component of the CCD video camera shown in FIG. 3 are the same as the configuration and operation of each component of the CCD video camera shown in FIG.

4 is a diagram illustrating an internal structure of the timing pulse generator illustrated in FIG. 3.

Referring to the internal structure diagram of the timing pulse generator shown in FIG. 4, 1212 counters 51, multiplexers 52, 606 counters 53, 625, and 525 counters are included in the timing pulse generator 50. (54), a bit operator (55) and a memory table (56).

One end of the timing pulse generator 50 is connected with an up / down counter 41, an illumination intensity detector 40, a counter 42, and the other end is provided with a clock unit clk, 43, The divider 44 and the scan method selector 45 are connected to each other.

At this time, two AIR and BIR signals are input to the illuminance detection unit 40, and two A × SUB and B × SUB signals are output to the counter 42.

In addition, the output signal terminal generated from the timing pulse generator 50 has H1 (A, B, C, D), H2 (A, B, C, D) output terminal 50a, and V1 (A, B, C). D), V2 (A, B, C, D), V3 (A, B, C, D), V4 (A, B, C, D), SG1 (A, B, C, D), SG2 ( A, B, C, D) output stage 50b and SYNC, CLP, BLK, HD, VD output stage 50c are output. VDD and GND are input to the input terminal of the timing pulse generator 50.

The description of the internal components and the operation of the timing pulse generator shown in FIG. 4 is the same as the internal components and the operation of the timing pulse generator shown in FIG. 2.

FIG. 5 is a waveform diagram showing a flow of charge accumulated in a CCD sensor in a horizontal signal for driving each CCD sensor shown in FIG.

Referring to the waveform diagram shown in FIG. 5, the first and second CCD sensor units 12 and 14 are driven by the horizontal and vertical driving units 60 according to various timing pulse signals generated from the timing pulse generator 50. In order to conceal the optical black portion of the signal from the vertical blanking signal of the third and fourth CCD sensor units 16 and 18 in the horizontal synchronizing signal for driving the third and fourth sensor units 16 and 18. You can see that all four accumulated charges are read from the beginning.

FIG. 6 is a waveform diagram illustrating the flow of an image signal output from a CCD sensor according to time zones in a horizontal signal for driving each CCD sensor shown in FIG. 1, and FIG. 7 is a timing pulse generation shown in FIG. 1. The waveform diagram of the vertical signal according to the negative operation time is shown.

6 and 7, in order to divide the screen of the monitor unit 80 into left, right, and up and down 4 divisions, one field takes 16.7 ms in the EIA (NTSC) method. When the screen of the monitor unit 80 is divided into upper and lower parts, half takes about 8.35 ms.

At this time, since there is an optical black period, the vertical driving signals are supplied to the first and second CCD sensor units 12 and 14 at about 8.8 ms to correct the period, after which the third and fourth CCD sensor units 16 , 18) to supply vertical drive signals. Of course, not only the vertical drive signal but also the horizontal drive signal and the reset gate signal.

Here, in the EIA (NTSC) method, 525 lines pass in one frame, which is divided into the upper part and the lower part to be 262.5 lines. This is a value that is reduced by half compared to the signal output from each CCD sensor unit 10 based on 525 lines.

That is, half of the output signal should be discarded, but in order to output the whole image, it should be discarded by crossing one line.

Thus, as shown in FIGS. 6 and 7, it can be seen that the vertical drive signal outputting one line should be 63.5us in one cycle, and the vertical drive signal should be read twice in one cycle.

FIG. 8 is a waveform diagram illustrating a flow of a vertical drive pulse and a horizontal drive pulse in a 1H period according to an operation time of the timing pulse generator shown in FIG. 1.

Referring to the waveform diagram shown in FIG. 8, first, a vertical signal is read and then 36.75us using a horizontal synchronous signal and a reset gate signal that are twice as fast as a clock frequency normally supplied to drive one CCD sensor unit 10. By supplying alternately, the left and right screens of the monitor unit 80 are divided.

At this time, the reason why the horizontal driving signals of AH1,2 and BH1,2 shown in FIG. 8 are different is that if all signals are read twice as fast as using one screen using one CCD sensor unit 10, The reset gate signal of BH1,2 should also have the same shape as AH1,2. In this case, the black band appears on the monitor due to the optical black period of the CCD sensor unit 10 of BH1,2 at the left and right intermediate timing of the horizontal screen. .

Therefore, in order to prevent this, the first and second CCD sensor units 12 and 14 read the vertical synchronization signal twice at the same time as shown in FIG. 8, and the horizontal signal also returns the blanking periods AH1, 2 and BH1, 2 signals. By overlapping both, it is possible to prevent the optical black portions of the first and second CCD sensor units 12 and 14 from appearing on the screen of the monitor.

At this time, the BH1,2 signal is not transmitted during the time when the AH1,2 signal is transmitted, and the AH1,2 signal is not transmitted during the time when the BH1,2 signal is transmitted. Can be.

FIG. 9 is a waveform diagram illustrating a vertical synchronization signal flow for concealing a signal of an optical black portion of the third and fourth CCD sensors in the timing pulse generator shown in FIG. 1.

Referring to the waveform diagram of FIG. 9 on the basis of the waveform diagram shown in FIG. 8, the optical black portion of the first CCD sensor unit 12 is first transmitted in the order of transmission in one line 1H of the scan line. The optical black portion of the second CCD sensor portion 14, followed by the data portion of the first CCD sensor portion 12, and finally the data portion of the second CCD sensor portion 14 are transmitted.

At this time, a black band appears in the middle of the screen from the left side to the right side of the monitor. The blanking part of the signals of the first and second CCD sensor parts 12 and 14 appears on the upper part of the monitor part 80 and thus on the screen. Although it does not appear, the optical black period of the third and fourth CCD sensor units 16 and 18 is simply doubled, which is why it appears in the middle of the screen of the monitor unit 80.

In order to prevent this, when the scanning lines of the third and fourth CCD sensor units 16 and 18 pass in the middle of the screen, the third line is read at the time of reading the data of the first and second CCD sensor units 12 and 14. By reading the data of the 4 CCD sensor units 16 and 18 together, the blanking signal of the 3rd and 4 CCD sensor units 16 and 18 is positioned in front of the monitor unit 80 so as to be hidden on the screen. Able to know.

10 is a timing diagram of a vertical drive signal and a horizontal drive signal of charge supplied to the timing pulse generator shown in FIG. 3, and FIG. 11 is perpendicular to a horizontal drive signal to which charge of the timing pulse generator shown in FIG. 3 is moved. A comparison diagram of the drive signal and the horizontal signal of the group A and the group B.

Referring to the waveform diagrams shown in FIGS. 10 and 11, when an image signal is input from one CCD sensor unit 10, in order to be output through the screen of the monitor unit 80, the screen is divided into left and right sides so that the screen is divided into two parts. do. There are many other ways to divide the screen left and right, but the problem that can be caused by simply dividing the screen to the left and right is that a black stripe line intersects the middle of the monitor.

In order to solve this problem, the waveforms of the horizontal transfer signals AH1, AH2, BH1, and BH2 that transfer charges read from the vertical signals are shown in FIG. Follow-up is also explained above.

That is, the blanking signal of the second CCD sensor unit 14 is equal to the blanking period of the first CCD sensor unit 12. To this end, the period in which the optical black portion is transmitted in the H1 and H2 signals of the second CCD sensor unit 14 is given immediately after the optical black portion of the first CCD sensor unit 12 is transmitted, and the first CCD sensor unit 12 After all the data is transmitted, it can be seen that the image data can be made to come out from one CCD by giving the H1 and H2 signals for transmitting the data of the second CCD sensor unit 14.

Therefore, according to the present invention, two or four video signals are outputted as one video signal on the video output of the monitor by mounting two CCD sensors or four CCD sensors on the video camera, and at the same time monitoring multiple places or Inspection eliminates the need for a special monitor or device to split video signals from individual cameras.

In addition, in order to implement a conventional screen divided into two, the resolution per screen is reduced by half, but in the case of EIA, NTSC, which uses a lot of input frequency as in the present invention, all signals using 38.1398 MHz, which is twice the 19.0699 MHz, are used. By transmitting them twice as fast as a conventional signal, they can be prevented from being reduced to half the resolution.

On the other hand, in the present invention as described above, the configuration and operation of the timing pulse generator for B / W has been described as a reference, it is well known that the COLOR timing pulse generator can be applied to the timing pulse generator for B / W. .

That is, the difference between the COLOR timing pulse generator and the B / W timing pulse generator is that the image signal output from the CCD sensor is digitally processed inside the COLOR video processor.

Therefore, video data processed in 1H should be processed twice as fast as B / W, and in this case, the amount of video data processed will be doubled. Unlike B / W, the amount of data to be processed as well as the 1H period must be processed with the image signal like the data from one CCD sensor unit, as the data continuously output from two CCD sensor units like one video camera of general CCD sensor. Is that the color can be properly implemented.

To this end, the timing pulse generator for B / W has doubled the amount of SHP (sample and hold pulse) and SHD (sample and hold data) signals of CCD sensor data, but the timing pulse generator for COLOR has to process as much as one data amount. In the 1H period, the SHP and SHD signals are processed like the timing pulse generator of a general video camera, and the data coming into the video processor is analog data, and the data of two CCD sensors located at the left and right sides are inputted in the 1H period. Image signal processing becomes possible. In other words, the number of samplings in the 1H period is the same amount, not twice that of a general camera.

In this case, however, in the timing pulse generator for the color, the horizontal resolution is reduced to 1/2 for each CCD sensor, unlike the B / W. That is, in the timing pulse generator for COLOR, the signals output to the CCD sensor are doubled and the signals output to the video processor are supplied at the normal speed, enabling the operation like the timing pulse generator for B / W. do.

Accordingly, the claims set forth below should be considered to cover all such modifications and embodiments.

As described above, according to the timing pulse generator for driving a plurality of CCD sensors at the same time in the CCD video camera capable of multi-division shooting according to the present invention has the following effects.

First, in terms of economics, it is possible to simultaneously view multiple images using multiple sensors on one camera body without using a conventional screen control box or quad monitor. The cost of purchasing can be reduced.

Second, in terms of resolution, the input frequency is a multiple of the frequency used by a conventional timing pulse generator, so that the horizontal resolution of the image signal captured by each CCD is maintained without loss in B / W. It will be cut in half. In COLOR, however, both vertical and horizontal resolutions are reduced by half.

Third, it is possible to see different images in four directions at the same time with a general monitor without using a 4-split monitor, and the vertical and horizontal resolutions of the video using the 4-split monitor are reduced by half, whereas the horizontal resolution is not displayed in B / W. It has the advantage of being kept intact.

Fourth, when the direction of the CCD sensor is properly arranged, it is possible to simultaneously observe all directions around the camera.

Claims (9)

A video sensor using two or four CCD sensors, a CCD sensor capable of detecting an image, a timing pulse generator for generating various timing pulses for driving the CCD sensor, and a video signal output from the CCD sensor In the timing pulse generator for driving the CCD sensor by the driving means of the video processor, A clock unit generating a reference clock frequency; A divider for dividing the clock frequency generated from the clock unit into two and combining the clock frequencies to output predetermined signals; A scan line method selection unit for selecting a scan line method; An illumination intensity detection unit for comparing and detecting an illumination intensity detected by a plurality of CCD sensors; An up / down counter for counting up / down of a clock frequency according to the comparison detection signal of the illuminance detection unit; A timing pulse generator for generating various timing pulses according to the divider, the scan line method selector, and the signals output from the up and down counters; And A plurality of CCD sensors at the same time in the CCD video camera capable of multi-division shooting, characterized in that it comprises a counter for counting the clock frequency for adjusting the illumination amount of the CCD sensor according to the timing pulse signal output from the timing pulse generator Timing pulse generator to drive. The clock unit of claim 1, wherein the clock unit selects a clock frequency that is twice as fast as a reference clock frequency when one of NTSC, PAL, SECAM, EIA, and PAL methods is selected. A timing pulse generator for driving a plurality of CCD sensors at the same time in a CCD video camera capable of multi-segment shooting, characterized in that used as a frequency. According to claim 1, Vertical synchronization signals (V1, V2, V3, V4) output from the timing pulse generator reads the signals of the CCD sensor one at a time at 63.5us at the same time, divided by left and right to alternately transmit the horizontal transmission signal A timing pulse generator for driving a plurality of CCD sensors at the same time in a multi-division imaging CCD video camera, characterized in that for transmitting the vertical drive signal from the first, second, third, fourth CCD sensor by the method. The method of claim 1, wherein the data transmitted from the first and second CCD sensors in the horizontal transmission signals H1 and H2 output from the timing pulse generator are transmitted during the period in which the first CCD sensor is transmitted. The black band appears in the center of the screen by outputting the optical black signal of the second CCD sensor immediately after the optical black signal of the first CCD sensor while preventing the data of the first CCD sensor from being transmitted while the second CCD sensor is being transmitted. Timing pulse generator that drives multiple CCD sensors at the same time in a CCD video camera capable of multi-segment imaging, characterized by removing the width of a single CCD. The method according to claim 1, wherein the four CCD sensors are applied to divide the screen of the monitor into the upper part and the lower part more than half of the signal of the CCD sensor that is output at the upper part to prevent the appearance of the optical black period of more than 8.35ms It is long, and at the same time a plurality of CCD video cameras capable of multi-segment shooting, characterized in that the timing of transferring the data from the third and fourth CCD sensors to the vertical register is read in the same manner as the timing of the data of the first and second CCD sensors. Timing pulse generator to drive the CCD sensor. The vertical synchronization signal according to claim 1, wherein the four CCD sensors are applied so that the vertical synchronization signal for outputting the horizontal line by half is output in one cycle (63.5) in the EIA (NTSC) method having 525 scan lines and the CCIR (PAL) method having 625 scan lines. us) A timing pulse generator that drives multiple CCD sensors simultaneously in a multi-stage CCD video camera, characterized in that the data is read twice and the output is transmitted only once. The method according to claim 1, wherein the four CCD sensors are applied to output the respective images to the left and right of the screen, when the CCD sensor data on the left side is transmitted, the horizontal transmission signal on the right side is stopped, and the CCD sensor data on the right side is transmitted. The timing pulse generator for driving a plurality of CCD sensors at the same time in the CCD video camera capable of multi-segmentation, characterized in that the horizontal transmission signal on the left side to stop. The method according to claim 1, wherein the four CCD sensors are applied to output the respective images on the upper and lower sides of the monitor screen, when the upper CCD sensor data is transmitted to stop the lower horizontal transmission signal, the lower CCD sensor data Timing pulse generator for driving a plurality of CCD sensors at the same time in a multi-segment CCD video camera capable of stopping the horizontal transmission signal of the upper side when transmitted. The CCD video camera according to claim 1, wherein when the timing pulse generator is applied to a color application, the sample and hold are taken at the same speed as the general timing pulse generator driving one of the CCD sensors. Timing pulse generator to drive multiple CCD sensors at the same time.