CN2089788U - Multifunction motion image generator - Google Patents

Abstract

The utility model relates to a multifunction motion image generator, which is matched with a TV display for providing the eye irritation image. The utility model takes the microcomputer 1 as the kernel which is matched with a cadence signal part 2, a window part 3, an image data storage and transportation part 4, a vertical reversed phase control component 5, a graphic parameter input component 6 and a graphic composite signal compound component 7. The utility model provides the width tunable black and white interphase upright stria, the base frequency black and white stochastic upright stria, the width tunable checker stria, the base frequency tunable stochastic reversed phase checker stria, the all-black graphics and the all-white graphics, having the adjustable image in the window or out of the window, the adjustable rim ambiguity, the adjustable movement of the graphics and other characteristics.

Description

Multifunction motion image generator

This utility model relates to a kind of stimulates image generation apparatus.

In the research of visual system function and clinical diagnosis, be extensive use of eye pattern and resemble stimulating apparatus, for example, measuring visual space resolution, when visual visual cortex brings out current potential and visual electroretinogram, need and can carry out visual stimulus with different space frequency with the crisscross pattern of the anti-phase alternation of different time frequency; And for example, the apparent motion chatter in clinical diagnosis is checked, needs to use moving grating eyes are followed the tracks of stimulation.Traditional eye pattern resembles to stimulate and adopts mechanical system, be so-called rotating-cylinder method or swivel chair method, being decorated with on cylinder inner wall stimulates image-chequered with black and white striped, and employing imposes visual stimulus with the friction speed way of experimenter's seat in rotating cylinder or the cylinder to the left or to the right to the experimenter.Obviously, its advantage is that the motion that can implement full visual field stimulates, and is that a kind of real motion stimulates.Its shortcoming is to stimulate image more single, and movement velocity is stable inadequately and be difficult to obtain bigger acceleration, certainly, also can not provide step velocity to change.At present, existing TV eye image stimulating apparatus shows fixed chequered with black and white nicking or gridiron pattern on television screen.Its advantage is a simple and convenient, does not also have the mechanical movement noise, and weak point is that visual kind is comparatively single, and function is on the low side, is difficult to satisfy many-sided requirement in scientific research and the clinical diagnosis.

The purpose of this utility model provides a kind of multi-functional TV moving picture generating means of microcomputerization, matches with television indicator, provides multi-functional eye to stimulate image.

Technical solution of the present utility model is: with microcomputer-single board computer or single-chip microcomputer is core, is equipped with the interface unit that connects mutually for microcomputer and television indicator.Be that this utility model is made of microcomputer and interface unit, produce the composite video signal that eye stimulates image, in order to the feed-in television indicator.Interface unit has cadence signal parts, window member, pictorial data accumulating parts, vertical anti-phase control assembly, graphic parameter input block and figure composite video signal compound component.Microcomputer is implemented control to the generation of figure, and at a field interval, CPU calculation chart graphic data also deposits in the memorizer, again these data is read and write pictorial data accumulating parts during interruption on the scene.The cadence signal parts provide reference clock and provide data displacement clock frequency and pictorial data OPADD to pictorial data accumulating parts, and horizontal pulse and field pulse also are provided.The function of window member provides window control signal, gating with external signal in the window of control figure composite video signal compound component, set up window frame on the display screen, form in the window and the image of eye stimulation outside window, it receives horizontal pulse and field pulse from the cadence signal parts, produces level and vertical window border signal respectively, also can receive extraneous signal, as the eye movement signal, the position, horizontal forward position of control window.Pictorial data accumulating parts play a part the pictorial data transmit buffering, read in the inside and outside pictorial data of window that microcomputer is sent here during its on the scene interruption, the inside and outside pictorial data of the window that then will read in during the demonstration on the scene is carried out serial shift, form original image signal, be transported to vertical anti-phase control assembly more respectively, via feed-in figure composite video signal compound component behind the anti-phase control signal gating.The anti-phase control signal of vertical anti-phase control assembly adopts by the field pulse Synchronization Control, and the horizontal pulse frequency division is produced anti-phase at random control signal with anti-phase control signal of acquisition cycle or by random signal generator.Figure composite video signal compound component inside and outside the window that receives vertical anti-phase control assembly feed-in pictorial data and carry out low-pass filtering smooth, also connect with the cadence signal parts, produce composite synchronizing signal and composite blanking signal by horizontal pulse and field pulse, and they are mixed synthetic composite video signal respectively with picture intelligence.The graphic parameter input block is to send into microcomputer by the parameter of image inside and outside the window of panel setting.

The utility model has the advantages that: function is many, and flexibility and changeability can satisfy the many-sided requirement of scientific research and clinical practice.1. pattern class; A. chequered with black and white nicking, black, white width is adjustable respectively; Black and white is nicking at random, and fundamental frequency is adjustable at random; B. the gridiron pattern striped is uniformly-spaced anti-phase on the vertical direction, width-adjustable; Anti-phase at random, fundamental frequency is adjustable at random; C. black entirely, complete white figure; D. figure is fuzzy, and is adjustable continuously; 2. the motor control of figure: a. moves to left or moves to right, and velocity magnitude is adjustable; B. image transform frequency (visual renewal rate) is adjustable; C. speed can be controlled by external signal; D. anti-phase alternation, frequency adjustable; 3. window setting: a. window, inside and outside figure are independently controlled; B. the level of window, the position on the vertical direction and width are adjustable respectively; C. the window level position can be controlled by external signal (for example eye movement signal); D. the left and right two frame place image diffusions of window are adjustable continuously.

This utility model is implemented by the following drawings.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the electrical schematic diagram of this utility model cadence signal parts.

Fig. 3 is the electrical schematic diagram of this utility model window member.

Fig. 4 is the electrical schematic diagram of this utility model pictorial data accumulating parts.

Fig. 5 is the electrical schematic diagram of the vertical anti-phase control assembly of this utility model.

Fig. 6 is the electrical schematic diagram of this utility model graphic parameter input block.

Fig. 7 is the electrical schematic diagram of this utility model figure composite video signal compound component.

Fig. 8 is a computer memory address assignment sketch map of the present utility model.

Fig. 9 is an image monitoring flow chart of the present utility model.

Figure 10 is a program control display routine block diagram of the present utility model.

Figure 11 is a continuous display routine block diagram of the present utility model.

Provide an embodiment of the present utility model according to Fig. 1～Figure 11 below, and, further provide ins and outs of the present utility model by elaboration to this example.

From Fig. 1 as seen, this utility model comprises microcomputer 1, cadence signal parts 2, window member 3, pictorial data accumulating parts 4, vertical anti-phase control assembly 5, graphic parameter input block 6, figure composite video signal compound component 7 and power supply 8.Wherein, microcomputer 1, pictorial data accumulating parts 4, vertical anti-phase control assembly 5 connect with circuit successively mutually with composite video signal compound component 7; Cadence signal parts 2 connect with circuit mutually with window member 3, pictorial data accumulating parts 4, vertical anti-phase control assembly 5 and composite video signal compound component 7 respectively; Window member 3 connects with circuit with composite video signal compound component 7; Microcomputer 1 also connects with 6 one-tenth circuit of graphic parameter input block.Power supply 8 connects with circuit with above-mentioned each parts respectively.This utility model is by composite video signal compound component 7 television indicator that the composite video signal feed-in is external.

Among Fig. 2, cadence signal parts 2 have comprised the crystal oscillator unit 21 formed by crystal T20, with door IC21, an IC22, resistance R 21, R22 and capacitor C 21～C24, the frequency unit of being made up of frequency divider IC23～IC26 22 and the monostable oscillating unit of being made up of monostable agitator IC27, IC28 23.Wherein R21, R22 and C24 form the biasing of NAND gate IC21, IC21 provides gain and 180 ° of phase shifts, C21, C23 and crystal T20 form ∏ type network, produce 180 ° additional phase shift, to satisfy the oscillating condition of 360 ° of phase shifts,, export by port 21 through IC22 to produce 20MHZ crystal oscillator pulse signal, as reference clock signal pulse of the present utility model, also be shift pulse as Output Shift Register in the pictorial data accumulating parts 4.In frequency unit 22, the 20MHZ clock signal is the half-time pulse of 32 microseconds through 8 frequency divider IC23 and 80 frequency divider IC24 formation cycles, be the field signal that the capable signal of 64 microseconds and cycle is 20 milliseconds by 2 frequency divider IC25 and 625 frequency divider IC26 generation cycles respectively again, and carry out shaping by IC27, the IC28 of monostable oscillating unit 23 respectively, by port (25) output horizontal pulse, by port (26) output field pulse.Because memorizer is to be single positional number with byte, so be provided with 8 frequency divider IC23.80 frequency dividers are made up of two 4 binary counters, and the condition line Q8 of its output state line Q0～Q7 and 2 frequency divider IC25 reads the address for VRAM provides, and by port (24) output, its state range is 031H～080H and 131H～180H; Simultaneously, low-end trim line Q0(frequency wherein is 1.25MHZ) by port (22) output, as the lowest address unit of VRAM in the pictorial data accumulating parts 4, so that 8 bit write-onces and 8 bits are once read; Inferior low-end trim line Q1(frequency is 625KHZ) by port (23) output, as the work clock of A/D converter in the image parameter input block 6.

Fig. 3 shows the formation of window member 3.Horizontal window unit 31 is by the monostable agitator IC301～IC304 that delays time in turn from the horizontal pulse of port (25) is formed, IC301 provides the horizontal forward position of window, IC302 and IC304 provide the horizontal left margin and the edge, the right of window respectively, IC303 provides the horizontal width of window, regulate the time-delay of IC301～IC304, can change the width at horizontal level, width and the left and right edge of window.In vertical window unit 32, monostable agitator IC305 and IC306 provide the vertical forward position and the vertical width of window respectively to delaying time in turn from the field pulse of port (26); The vertical window signal is sent into d type flip flop IC307 again, and the D of IC307 end connects mutually with the horizontal pulse of port (25), and purpose is to make vertical window signal and horizontal pulse synchronous, straight with two horizontal boundaries of maintenance window.Regulate the time-delay of IC305 and IC306, can change the upright position and the width of window.In the synthetic output block 33 of window, or after door IC308 receives the horizontal window signal of IC303, IC304, again with the vertical window signal of IC307 with, through NAND gate IC310 synthesis window control signal, export by port (32); Or door IC309 connects with IC302 and IC304 respectively, behind the edge signal of the receive window left and right sides, again with the vertical window signal of IC307 with, synthesize window edge control signal through NAND gate IC311, export by port (33).For being followed the tracks of, video in window stimulates a certain zone in the visual field, require to keep relative static between position of window and the eyeball position, therefore, window member 3 has also comprised the external signal control window level forward position position units 34 that is made of sawtooth generator IC312, amplifier IC313, sampling hold circuit IC314 and voltage comparator ic 315, wherein, sawtooth generator IC312 is controlled by horizontal pulse, and identical with the line frequency frequency, with sawtooth waveforms and the same homophase frequently of horizontal pulse that guarantees to produce; The external windows position control signal, eye movement signal for example, import by port (31), carry out amplitude and level adjustment through amplifier IC313, send IC314 the maintenance of sampling, IC314 is controlled by field pulse, straight with two vertical boundaries keeping window, its output is sent into voltage comparator ic 315 with sawtooth signal, and the output of comparator is the window forward position of eye movement control.Hilted broadsword two-throw switch K30 connects mutually with monostable agitator IC309, in order to select the control mode of horizontal window position.The window level forward position is provided by monostable agitator IC301 when K30 pulls to K301, is then provided by voltage comparator ic 315 when K30 pulls to K302.

Fig. 4 shows the formation of the pictorial data accumulating parts 4 of present embodiment.Video storage unit 41 by data storage IC401 in the window and outside window data storage IC402 form the inside and outside pictorial data of preserve separately window.Digital switch IC403, IC404 and triple gate IC405, IC406 form video storage gating unit 42, and the PA5 control IC403 of P10A mouth is to the switching of IC401, IC402 address wire and the IC404 switching to IC401, IC402 read-write state.Or door IC407～IC411 forms conditional logic control unit 43, the gating of control IC401, IC402 data and read-write state.Shift register IC412～IC415, triple gate IC416～IC419 and not gate IC420 form displacement output unit 44.

Work as PA5=0, when interrupting on the spot, the address wire of video storage unit 41 is provided by A0～A8 of microcomputer CPU, and memory write signals MEMW read/write control end WR direct through IC404 and memorizer links; Cpu address line A9 participates in the sheet choosing.During A9=0, microcomputer can choose window built-in storage IC401 to put number with CS3, or door IC410 output low level, the data wire of the triple gate IC405 feed-in IC401 of pictorial data through opening; Simultaneously, or door IC407 output high level, a warp or a door IC408 stop the gating of memory IC 402 outside window.During A9=1, or door IC409 output high level, window built-in storage IC401 is not by gating, and or door IC407 output low level, microcomputer can choose outside window with CS3 that VRAM IC402 puts number, or door IC411 output low level, and pictorial data is through the data wire of triple gate IC406 feed-in IC402.

At PA5=1, during promptly showing, address, the DCB of inside and outside VRAM of window and microcomputer are isolated, and be in the state of reading of choosing simultaneously, its address wire connects mutually with the port (24) of cadence signal parts 2, address realm is 031H～080H and 131H～180H, respectively pictorial data inside and outside the window is sent shift register IC412～IC415 the output that is shifted.For the state range of the port (24) that provides with cadence signal parts 2 is consistent, to single board computer,

Data address is in the window: X00,0011,0001～X00,1000,0000

X01，0011，0001～X01，1000，0000

Data address is outside window: X10,0011,0001～X10,1000,0000

X11，0011，0001～X11，1000，0000

As everyone knows, shift register has two kinds of duties: the one, and displacement output, the 2nd, put number.In order to guarantee to be lost corresponding to the pictorial information of putting one number time is unlikely, so output all is provided with two shift registers (being IC412, IC413 and IC414, IC415) respectively to the data inside and outside the window, displacement and put number hockets, its displacement is carried out clock control by the 2CMHZ pulse of port (21), and outfan connects with triple gate IC416～IC419 respectively, form the inside and outside original image signal of window, respectively by port (41) and (42) output.Port (22) provides minimum memory address unit signal, connects mutually with the gating end of triple gate IC416～IC419, makes their opening state corresponding with the output of shift register.In addition, port (22) also and the output of not gate IC420 together, control shift register be shifted/the put switching of number state.

Fig. 5 provides the circuit structure of vertical anti-phase control assembly 5, with the vertical anti-phase example that is controlled to be in the window, it comprise by not gate IC501, digital switch IC502 and anti-phase selector switch K51 constitute visual positive and negative phase signals switch unit 51, the horizontal pulse frequency unit 52 that constitutes by decimal scale two figure places combination dial K52 and enumerator IC503, the anti-phase control unit 53 of cycle that constitutes by d type flip flop IC504 and the anti-phase at random control unit 54 that constitutes by d type flip flop IC505～IC513 and XOR gate IC514.Provide by port (41) from original image signal in the window in the pictorial data accumulating parts 4, directly insert the input of IC502 on the one hand, after IC501 is anti-phase, insert another input of IC502 on the one hand, it is output as picture intelligence in the window, is delivered to figure composite video signal compound component 7 by port (51).The control mode of IC502 is selected by SP3T K switch 51, K511 ground connection, K512 and K513 respectively with the outfan (being the Q end of IC504) of cycle rp unit 53 and at random the outfan of rp unit 54 (being the outfan of IC514) join.When K51 dials to K511 for not anti-phase; Dialling is that the cycle is anti-phase when K512; Dial when K513 to anti-phase at random.Like this, in the positive and negative phase signals of one the exportable image in different rows place, realize image cycle or alternately paraphase at random in vertical direction.From Fig. 5 as seen, horizontal pulse is by port (25) input, and the field pulse of port (26) is put initial state to horizontal pulse frequency unit 52, anti-phase control unit 53 of cycle and anti-phase at random control unit 54 respectively, makes image that the shake on the vertical direction can not take place.Enumerator IC503 output meets T trigger IC504, and producing dutycycle is the anti-phase control impuls of cycle of 1:1, and the initial value by dial K52 changes enumerator IC503 just can change visual anti-phase interval of cycle.Rp unit 54 provides the pseudo-random binary signal at random, present embodiment adopts by 9 d type flip flop IC505～IC513 to be formed cyclic shift and realizes the function that mould 2 adds by XOR gate IC514, be IC514 two inputs respectively with the output coupled of IC509 and IC513, the data terminal D of its outfan and IC505 connects.Simultaneously because the CP client link of enumerator IC503 and d type flip flop IC505, so change dial K52 put number, can change vertically anti-phase at random fundamental frequency.Identical in Tu Xiang vertical anti-phase control principle and the window outside window, original image signal is exported by port (52) through the signal outside window of anti-phase control by port (42) input outside window.

Fig. 6 shows the formation of graphic parameter input block 6.Being provided with of these parts mainly is in order to provide real-time replacing to show the function of image parameter, by 10 combination dial K601～K610 and 8 hilted broadsword two-throw switch K611～K618 composition parameter preset units 61, digital switch IC601～IC618 and triple gate IC619, IC620 composition parameter gating unit 62.In the present embodiment, K601～K608 is decimal scale three figure places combination dial, and K609～K610 is decimal scale two a figure places combination dial.K601 and K605 are provided with the inside and outside black streaking width of window respectively, K602 and K606 are provided with the inside and outside informal voucher stricture of vagina width of window respectively, K603 and K607 refresh visual translational speed inside and outside window is set respectively, K604 and K608 are provided with the inside and outside refresh time of window respectively at interval, it is velocity factor, K609 and K610 are provided with the inside and outside horizontal probability density of striped of window respectively, K611 and K615 are provided with the first phase of the inside and outside striped of window respectively, K612 and K616 are provided with the moving direction of the inside and outside image of window respectively, K613 and K617 are provided with the control mode (being that speed is controlled or controlled by external signal by setting) of the inside and outside image rate of window respectively, and K614 and K618 are provided with the inside and outside horizontal image mode (being cycle striped or random streaks) of window respectively.Select 1 digital switch IC601～IC610 to select three figure places combination dial K601～K608 by the PA0 of P10A mouth～PA2 control 8, its least-significant byte number is sent into the data/address bus DB of single board computer through triple gate IC619, and single board computer reads above-mentioned parameter in the I/O mode; Select 1 digital switch IC611～IC618 to select high 2 figure places of two figure places combination dial K609 and K610 or hilted broadsword two-throw switch K611～K618 or three figure places combination dial K601～K608 by PA3, the PA4 control 4 of P10A mouth, data are through triple gate IC620, send into single board computer data/address bus DB, equally, single board computer reads the data of sending here in the I/O mode.In addition, form visual external control speed input block 63 by IC621～IC624, the speed of the inside and outside image of window can be controlled by adding the signal of telecommunication respectively, the inside and outside speed control signal of window is imported by port (61) and (62) respectively, is undertaken being fed to A/D converter IC624 after level and the amplitude adjustment by amplifier IC621 and IC622.A/D conversion is carried out with automatic Starting mode, and working clock frequency is 625KHZ, is provided by the port (23) of parts 2, and the PA3 control input channel of P10A mouth is selected, and transformation result is read in computer through the P10B mouth.IC623 then provides the A/D conversion required reference voltage.

Fig. 7 is the formation of figure composite video signal compound component 7.Low-pass filter unit 71 is made up of low pass filter IC71 and IC72, and brightness adjusting unit 72 is made up of amplifier IC73 and IC74.In the window that parts 5 are sent here signal (51) and outside window signal (52) can produce blurred image respectively through IC71, IC72 low-pass filtering, carry out respectively sending visual window control unit 73 after the brilliance control by IC73, IC74.Wherein, analog switch IC75 finishes the switching to image inside and outside the window, its control end is subjected to control from the window signal of parts 3 (31), the inside and outside composite signal of window after the processing is fed to impedance controller IC76, the control end of IC76 is subjected to the control from the window edge signal (32) of parts 3, visual brightness can not produce sudden change near making vertical sash, makes the inside and outside junction of window image diffusion.Row, field pulse are provided by port (25), (26) of parts 2 respectively, deliver to monostable oscillating unit 74 and form composite sync and composite blanking signal.Signal is sneaked into device IC77, IC78 composition composite sync, unit 75 is sneaked in blanking, mixed signal is sneaked into device IC77 by IC76 feed-in mixed blanking inside and outside the window after the frame fuzzy control is handled, the control end of IC77 is subjected to the control of the composite blanking signal that IC79 provides, be expert at, field blanking interval, IC77 is pulled down to the composite picture signal of accepting near the negative supply level, produce blanking, and can regulate the size of blanking level by the level clipper circuit.Sneaked into the composite picture signal behind the mixed blanking and after composite sync is sneaked into device IC78, obtained composite video signal again, exported by port (71).The operation principle of IC78 is identical with IC77, and its control end is subjected to the control of the composite synchronizing signal that monostable oscillating unit IC79 provided.

Microcomputer 1 adopts single board computer TP801 in the present embodiment, its CPU operating frequency is 4MHZ, the PIOA mouth is used for state control, adopt position prosecutor formula, wherein bit0～4 are respectively applied for parameter input gating, bit5 is used for the inside and outside pictorial data of window and transmits gating, and bit6 is used for an interruption input control, and bit7 is used for programme-control output.Memory address distributes as shown in Figure 8, and address 0000H～07FFH and 0800H～0FFFH place monitoring programme respectively and image shows operation program.The flow process of monitoring programme as shown in Figure 9.The image demonstration is divided into program control display mode and continuous display mode, and the corresponding programs flow process is shown in Figure 10 and Figure 11 respectively with it.Continuously the graphic parameter of display mode is promptly put number by the cubicle switch K601～K618 in the parts 6 all by the panel-switch setting, and ordering parameter value in real time.During work, program is every 20 milliseconds of settings that detect all graphic parameters, and makes corresponding adjustment.When program control demonstration working method, fenestrate inside and outside image parameter and demonstration time etc. preestablish by program parameter.Program control demonstration is to be undertaken by section, and every section parameter is made up of 6 bytes, puts into memorizer by the demonstration sequencing.Program makes to subtract 1 counting every 20 milliseconds to velocity factor, and it count down to zero back time parameter is made to subtract 1 counting, and time parameter reads in next section display parameters after counting down to zero, then calculates once new pictorial data, till running into end mark.

Claims (4)

1, a kind of multifunctional movement picture generator, cooperate with television indicator, provide eye to stimulate image, it is a core with microcomputer 1, being equipped with power supply 8 and interface unit constitutes, its interface unit comprises to television indicator presents the figure composite video signal compound component 7 that eye stimulates image, to the figure figurate number input block 6 of microcomputer 1 input imagery parameter with reference clock signal and row are provided, the cadence signal parts 2 of field pulse write the graph data of being read by microcomputer 1 when it is characterized in that also having on the scene the interruption and send the pictorial data accumulating parts 4 of graph data during the demonstration on the scene, connect cadence signal parts 2 with its row, the level that field pulse postpones to form respectively window in turn and vertical frame and the window member 3 of the full TV compound component 7 of frame signal feed-in figure with follow cadence signal parts 2 and pictorial data accumulating parts 4 to connect respectively with circuit, and the pictorial data of feed-in is carried out sending into after the vertical anti-phase control the vertical anti-phase control assembly 5 of figure composite video signal compound component 7.

2, according to the described motion video generator of claim 1, it is characterized in that pictorial data accumulating parts 4 comprise that buffering deposits the video storage unit 41 of the inside and outside pictorial data of window, the address wire of this memory element 41 connects with gating via the address bus of 42 pairs of microcomputers 1 of video storage gating unit and the output port (24) of cadence signal parts 2, its read-write end and sheet choosing end are subjected to 43 controls of conditional logic control unit, its data wire connects mutually with the data input pin of displacement output unit 44, and be connected via the data/address bus of video storage unit 42 with microcomputer 1, the read-write of microcomputer 1, chip selection signal and carry-out bit control signal be feed-in conditional logic unit 43 behind video storage gating unit 42 gatings, and video storage unit 41 is carried out read-write operation.The displacement control of displacement output unit 42 is connected with (22) with the output port (21) of cadence signal parts 2 respectively with the inside and outside output selection of window port, and its outfan (41) is connected with (42) input with vertical anti-phase control assembly 5.

3, according to the described motion video generator of claim 1, it is characterized in that vertical phase inversion section 5 comprise the positive inversion signal switch unit 51 of image, with the switching mode selector switch K of this switch unit 51 ₅₁Become circuit to connect respectively and be subjected to from the synchronous rp unit at random 54 of the field signal of cadence signal parts 2 and cycle rp unit 53 and will be from the capable signal frequency split of cadence signal parts 2 and the capable frequency unit 52 of feed-in cycle rp unit 53.

4,, it is characterized in that window member 3 comprises the monostable agitator IC that the horizontal pulse from the port 25 of cadence signal parts 2 is postponed in turn according to the described motion video generator of claim 1 ₃₀₁～IC ₃₀₄The horizontal window unit 31 that is constituted, the monostable agitator IC that the field pulse from the port 26 of cadence signal parts 2 is postponed in turn ₃₀₅～IC ₃₀₆The vertical window unit 32 that is constituted, to external signal amplified and with horizontal pulse with in-phase sawtooth signal frequently through voltage comparator ic ₃₁₅The external signal that constitutes is controlled window level forward position position units 34 and the row of level, vertical window unit 31,32, the window that an inhibit signal is carried out logic synthesis window control signal and window edge control signal is synthesized output unit 33.

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