RU1797135C - Device for image input-output - Google Patents

Abstract

The invention relates to television technology and can be used to study images. It is an object of the invention to enhance functionality by fragmenting an image in a format other than the broadcast standard. For this, a device containing a television sensor 1. ADC 3, RAM unit 6, DAC 8, VKU 11, address unit 7, clock 5, the first 2 and second 10 control units, a distributor 9, a switch 4. 1 il.

Description

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The invention relates to television and can be used in television image analysis systems.

A device for inputting video information containing an interface unit, a logical device, a filter, signal conditioners of a TV camera and a TV monitor is known. A disadvantage of the device is the inability to store frames of the analyzed image.

Closest to the technical nature of the proposed is a video input device. The device comprises a TV sensor, an ADC block, a RAM block, an address block with control logic, a clock driver, a synchronizer, a DAC output unit, a VKU. The TV sensor, the ADC and the data input of the RAM, DAC,, VKU block are connected in series. The output of the address of which unit is connected to the address input of RAM. The counting and setting inputs of the address block are connected to the sync generator .- .-. . . .:; .

A disadvantage of the device is the inability to view images with a format other than the broadcast standard. .; .: ..,

The aim of the invention is to expand the functionality of the device at the expense of fragmentation. output .images with a format other than the broadcast standard.

The drawing shows a structural diagram of the device.

The device comprises a television sensor 1, a first control unit 2, an ADC 3-, a switch 4, a clock generator 5, a RAM unit b, an address unit 7, a DAC 8, a distributor 9, a second control unit 10 of the VKU 11.

The device operates as follows. ./. L. ; . . ; . ;.

The video signal from the output of the television sensor 1 is fed to the ADC 3, where it is converted to digital form and transmitted to the information input of the memory unit 6. Synchronization signals (horizontal and frame synchronization signals, as well as a sampling signal per line) from the sync output of the television sensor are fed to the input of switch 4, the second input of which receives the same clock signals from the broadcast standard from sync generator 5. In addition, the CSI signal is sent to control unit 1 , which generates a write signal that controls the operation of switch A, the write / read mode of the memory unit 6 and the distributor 9, In the presence of a write signal, the output signals pass through the switch 9 The sensor and transmitted further to the clock ADC 3,

DAC 8, distributor 9. The discretization signal along the line is fed, in addition, to the input of the address block 7.

The recording signal also transfers the memory unit 6 to the Recording mode and controls the distributor 9 in such a way that the horizontal and frame synchronization signals distributed by it are fed to the RESET input of the address block 7, setting the counters of this block to the zero state for each

CSISI. .

Address block 7, generates row addresses and column addresses, provides access to the memory cells of block 6. As a result, a record is made in the memory block

digital television signal from the ADC output. When a signal is recorded, it is linked to the CSI, i.e. when switching to the Reading mode, the clock from the synchronizer 5 passes through the switch 4. Thus, when reading the device is synchronized with the clock signals of the broadcast standard. In the case of a sensor with a decomposition format exceeding the broadcast standard, by

the VCU screen only displays a portion of the image recorded in the memory unit. Read from block 6 of the memory information is fed to the DAC 8, where the standard TV signal is converted and fed to VCU 11. In the mode

After reading, the distributor 9 distributes the clock signals to the S-input of the address block. As a result, the reading of information starts not from the zero addresses of the rows and columns, but from some starting addresses,

installed at the information input of block 7. Codes of start addresses are set using control unit 10. By changing the codes of the starting addresses, fragment-by-bit viewing on the VKU is achieved

the entire image recorded in the memory unit.

Claims (1)

Formula and shade Image input-output device containing a television sensor connected by an information output through an analog-to-digital converter with an information input of a memory unit, the output of which is connected via a digital-to-analog converter to the input of a video-control device, address block, output which is connected to the address input of the memory unit, the control input of which is connected to the first output of the first control unit, a sync generator, further, in order to expand the functional x capabilities of the device due to fragment-by-bit output of an image with a format different from the broadcast standard, a switch, a distributor and a second control unit are inserted into it, the output of which is connected to the information input of the address block, the installation inputs of which are connected to the output of the distributor, the sync input of which is connected to the sync the digital-to-analog converter, address block, analog-to-digital converter, and the output of the switch, the first information input of which and the output of the first block are controlled and connected to the clock input of the television sensor, the output of the clock generator is connected to the second information input of the switch, the control inputs of the distributor and the switch are connected to the output of the first control unit.