JPS60199276A - Special effect generating device - Google Patents

Abstract

PURPOSE:To finish with by providing one circuit in common to a title key signal TKY and a wipe key signal WKY as a mix circuit by mixing a background signal and a mat signal at a mix circuit after the title key signal TKY and the wipe key signal WKY are mixed in a key signal generating section. CONSTITUTION:A special effect generating device has a mix circuit section 11 and a key signal generating circuit section 12, and the mix circuit section 11 transmits a synthesized picture signal VO taking a picture as the content as shown in Fig. In wiping the 1st pattern section 15 formed by superimposing the title 16 on the B pattern and the 2nd pattern 17 comprising the B pattern, the key signal generating circuit section 12 receives the wipe key signal WKY and the title key signal TKY so as to form a composite key signal KEY and the result is given to the mix circuit section 11. A switch circuit 25 selects a picture signal VB representing the B pattern being the background picture on the pattern shown in Fig. and a switch control signal TG selecting the picture signal VB during the period excluding the latter half t1-t2 of a border section TD as shown in Fig. L is given.

Description

[Detailed Description of the Invention] [Industrial Field of Application] Regarding the present invention and the special effects generating system, the present invention is used to suitably impose characters on the screen when producing television programs (hereinafter referred to as title). It is suitable for application to door fittings (suits).

[“Nikyo technology and its problems]”

The title is used as a supplement to the contents of the Super 1 screen, but the background is! When you superimpose a character on 11 yen, is it a character? In order to distinguish it from the background (2) and make it easier to read, conventional methods have been used to add borders to the letters.

Figure 11C Figure 2 (Al) K letter A'
The so-called normal super method, which uses characters colored by K, is used as the principle method for the title signal TS (Fig. 2 (A2)), which waits for uniform phase, saturation, and brightness, which is different from ft'1jir Kyoyu. It is being As shown in Figure 2 (B1), as shown in Figure 2 (B1), the edge part of the character sTT is tilted MY, and the background image 4a is removed and colored as needed. In this case, a so-called border type system with a border BB is used. In this case, the title signal TS is tilted to a signal level representing a portion corresponding to the border MB BK, as shown in FIG. 2 (B2). In addition, as a second means of emphasizing the edges, as shown in Figure 2 (C1), for example, the characters 5TTK are added with a black shadow msH'Y, forming a character similar to that of adding a shadow t by shining light from the upper left. A so-called shadow super system is used. Title signal T generated by this character
8 is required to have a signal format in which a black signal corresponding to shadow Th5l-1 is added following a signal portion corresponding to the character portion TT, as shown in FIG. 2 (C2).

Furthermore, as a third method to avoid sharpening the edge part 7, as shown in Figure 2 (pl), the background image is used as the character part TT. Outline part O that is easy to wear and forms the outline of the letters.
The so-called outline super which is colored L'& is used as the title signal TS to obtain this character.As shown in Figure 2 (B2), a duck that rises at the timing corresponding to the outline part 0LKa is used. narrow 4
Is it necessary to form No. 6?

Among the above methods, an 11-component special effect generating circuit shown in FIG. 3 was used to generate characters for the normal and super one methods. In FIG. 3, the back tifi+ signal A is multiplied by the key signal in the multiplier circuit I and then supplied to the adder circuit 2. On the other hand, the length part TT is converted into an inverted key signal B in the second multiplication circuit 3 via the inverter 4, and is supplied to the control circuit 1f62. Thus, from adder circuit 2, lrkyol! Mat signal BK to ll partner signal
A composite image signal VO obtained by superimposing the title signal TS based on the title signal TS is sent out.

Here, the key signal is a coefficient signal that falls from 1 to O between 1111 and 8 in the edge direction of the text '4-ThTT, as shown in FIG.
The background image signal A is sent out from the multiplication circuit 1 between O and the matte signal B is sent out from the multiplication circuit 3. Thus, the portion of the composite 1Ilil monk number VQ that corresponds to the character capital TTK becomes the matte signal B. It will be colored with the corresponding color.

Here, the matte signal B is a color signal capable of imparting a color with uniform phase, saturation, and brightness to the screen, and in the matte color code generation circuit 5, the phase adjuster VR1, the a sum degree v4
IjV! ? By adjusting the child VR2 and the brightness adjuster VR3i, Matsu No. 11 B of the set color tone is formed.

Also, the case of superimposing the titles of the pose super one-way method and the shadow super one-way method described above with respect to FIG. 2 (Bl) and (Cl); as shown in FIG. A special effect starting circuit is used in which the first special effects circuit EFI is connected in cascade with the second special effects circuit or EF2 for adding mBB and shadow part SHY. The special effect circuit section EFI of No. 1 supplies the background image signal to the background image signal, as shown with the same reference numerals attached to the corresponding parts in FIG. 3, and the matte signal B to the key signal Kl (as shown in FIG. A composite image signal C is generated by superimposing the character part TT)k on the back 'MmK by keying the signal with the same signal content as the signal TT).

Second special effect circuit EF2 first special effect circuit dF
] The same structure is assumed and corresponding parts are given the same reference numeral and suffix Y.
), thus, by keying the composite image signal C and the matte signal RI to the key signal 2, the sum M, I[1l11&'A8 Vo)a1' is obtained. If you want to read the title of Pause Super, set the key to 2 and set it to 2 as shown in Figure 4 (Q & C button). A signal formed by forming a narrow BB that changes the darkness of &y1 to 0 is used.Thus, the first special effect circuit section EFI
2 (Al) VC as described above by 1 to the key signal of l? After the character part TT of IJ@ is formed, the second
In the special effect circuit section EF'2, the key signal 2 is used to color the spine at the periphery of the character section TT, starting from the image section t, to form a border section BB. Ken i issue VO same volume txm 2 ward (BL
) rc tweet will be as described above.

If you want to add the title by shadow super as described above with reference to FIG. 2 (C1) to this AK, use the signal shown in FIG. This signal forms a waveform part corresponding to the character part TTK, followed by a falling shadow part corresponding to the Q number O, and a drum-shaped part corresponding to 5HIC. Matte signal D is added to the key signal by 2 for Literature Department TT similar to Fig. 2 (A]).
By receiving the IC-based shadow 1lVSH, we can obtain a composite signal ○O, and thus the mountain part formed by superimposing the title of the Nyado super one-way system described above with respect to Fig. 2 (C1) on the back. It can be achieved.

In this manner, in conventional special effect implementations, it is necessary to provide a mixer circuit having almost the same basic structure as described above with reference to FIG. 3 each time one effect is applied to a background image signal. Therefore, for example, the composite image 91II signal v obtained by the configuration of FIG. 3 or FIG.
If a wipe effect is to be applied to O, a mix circuit that uses the wipe signal as a key signal is provided at a subsequent stage of the special effect circuit section.

By the way, regarding mix circuits, in general, as shown in FIGS. 3 and 5, it is effective to reduce the number of mix circuits in order to reduce the size of the overall configuration (2 VC multiplier circuits). Incidentally, it is advantageous to avoid the fact that the structure of the multiplication circuit becomes quite large, and therefore it is desirable to minimize the number of multiplication circuits.

[Purpose of the invention]

The present invention is based on the above points, and in order to obtain the effect of wiping the image by superimposing the title on the background image using the wipe signal, the mix circuit'&Th can be simplified. The purpose of this paper is to propose a special effect generating device that is similar to the above.

[Summary of the invention]

In order to achieve such an object, in the present invention, a composite key signal is formed by VC@ of a title key signal and a wipe key signal with the passage of time by a key signal generation circuit section, and the background image signal and the color tone of the title or A composite key signal is input to a mix circuit having a pair of multiplier circuits that receives a title image signal and a pair of multiplier circuits, so that the keying control of the pair of multiplier circuits is performed using the composite key signal.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In Figure 1, special effect generating device 1 emics circuit area 1
1bL key signal generation circuit section 12 and mix t
! ll! From 1st path 911, a synthesis l[111 image master number VOon] containing the content of the aid/exchange as shown in Fig. 6 is sent out.

In FIG. 6, the first screen section 15 has 8 screens as a background image, on which a title 16 of the front side border super one-way style is superimposed on the letter A'. It consists of 8 screens. These first and second ll! 11 sides 15 and 17 are Waigborda 1
Thus, when wiping in the direction of the wipe border 18 or the first screen portion 15, the title 16 superimposed on the 8th screen is erased and Bl is wiped by the wipe signal formed by forming 8. ) screen changes to n
On the other hand, the title 164 is superimposed on the 8th screen, or the screen is changed from the 11th page of B11 and the screen is moved in the direction of the wipe border 18 or the second th surface section 17. .

In this way, when wiping the first screen section 15 consisting of the title 16 superimposed on the B screen and the second screen section 17 consisting of the B1 screen, the key signal generation circuit section 12 (go wipe key Receiving the signal WKY and the title key signal TKY, a composite key signal KEY is formed and applied to the mix circuit s1]VC.The key signal generating circuit Th12 generates the title key signal TKY (FIG. 7(A)), the border signal BO (the seventh In response to the switch circuit 15, which is controlled by the switch circuit 15 according to FIG.
When the logic f) IJ rises at approximately the center of the rising interval in (Fig. 7 (J)), by switching from the coefficient "0" signal input terminal to the title key signal TKY side,
As shown in FIG. 7C, at the time when the border signal BO or M rises, the title key signal TKY'l' is sent to the switch circuit 16 as the switch output 811.

The switch circuit 16 receives the inverted poder key signal BK (Fig.
) K therefore selects the switch output 811 while the n is rising, and outputs the signal "1" during the interval TD, that is, the border TD, thus 7th
As shown in the figure ■Trap, the period t starts from Ato when the border curve TD is entered. - tl interval u [J and time t1
Thereafter, switch output 5 is obtained by outputting switch output 512Y.
12Y multiplier circuit 17VC is input manually. In response to this, the key signal WKY (FIG. 7 (G)) is applied to the switch circuit 18 which is turned off by the inverted border key signal BK, and the inverted border key signal BK (
Figure 7■) is the wipe key signal WKY during the border ward darkness TD
is selected and in another section? By selecting all the coefficient "1" input signals, as shown in FIG. 7 (2), the engagement Fr1JY is maintained in the three periods other than the border section TD, and the wipe key signal WKYY is maintained in the border section ijl TD.
The switch output 5i3y is output to the multiplier circuit 17.

Thus, as shown in FIG. 70, the multiplication circuit 17 enters the border section fTrUTDK at time t. Hereinafter, in Ail, the switch output S12 is the coefficient "0", so the coefficient rOJ
After that, at the border section Ti), the switch output 812 is at ``1'', so that a drum-shaped S having the same change as the key signal WKY is generated, and at the time t2 when the border section TD ends. switch output 8
The title key signal TKY (Fig. 7 (
A) Composite key signal KEY with an hourglass-shaped portion exhibiting a variation of
Or send it out.

The mix circuit section 11 includes a first multiplier circuit 21 that receives a key signal KEY and a second multiplier circuit 7A that receives an inverted key signal KEYt obtained by inverting the key signal KEY in an inverter 22, and switches circuits U and 6, respectively. (2) Green signals VDI and VD2 Y key signals KEY and Kf! :Y, and after being added in the adding circuit 26, it is sent out as a composite image signal VO.

Turn the switch circuit δ on the screen in Figure 6.
The B1m11 side, which is 1, is selected as the front page image damage signal VB, and as shown in Fig. 7 (L)K, the half area t1 to t2 of the border section TD is excluded (between Gage Hai No. 18). A switch control signal TG for selecting the YB side is applied.

-1 In the screen shown in Figure 6, the Ath side to be inserted into the title 160 character section is set to the table haze signal VA and matte signal M.
1 or selected by switch n. , is added to the title border signal TB and then applied to the switch circuits U and δ.

The title border signal TB is a color erasing signal CC to form an edge on the edge of the title 16 on the th side (Fig. 6), which is used to remove the matte number M3, to obtain a complete set of title supers. In this case, the t clear matte signal M3 is included, and color erasure (No. F1 CC) is used for the outline super one-type title super.

The image signal related to the title sent out from the adder circuit in this way is selected in the second half of the border section TD by the switch control signal TG (FIG. 7(L)) in the switch circuit 25, and is sent out as the image signal VD2. Sanru. Further, the output of the adder circuit is selected in a section other than the poder section TD by the border key signal BK (FIG. 7 (J)) in the switch circuit section and is sent out as an image signal VDj.

At the same time, the switch circuit 24 receives the border key signal BK and the border key signal BK is activated! During ITD, matte coefficient M2 is selected, and during border section rdl TD, matte signal Pv is selected.
It is possible to color I2.

At #glC in FIG. 1, the key signal KE is applied to the multiplication circuit 21 of the mix circuit 1K) 11 and the image signals VDIC (FIG. 7 (J)) and VD2 (FIG. 7 υ).
Y147 Figure C [(l) and i-turn*-signal KEY (Figure 7 (1)) are multiplied to produce image signals VDII (Figure 7 ■) and VD12 (Figure 7 (M)), respectively. This is then added in an adder circuit to obtain the sum 1fLlflI image number VO (see FIG. 7).

The section before the 7th border TD, which arrives, corresponds to the second screen section 17 of the screen in Fig. 6, and is the section in which the background image signal VB is sent as the composite image 1# and the key signal VO. is the coefficient ``0'', whereas the inverted key -@KEY is the coefficient ``1'', so whether 1111 Shui No. 8 VDI, image signal VA or matte No. M1 is selected, this l
[111 body signal VDI jil [ilI image body signal D 1
The image signal vB selected as the image signal VD2 is not sent out as a signal VD2, but is sent out to the adder circuit 6 as a signal V12. In this way, the composite image signal VU becomes in a state where the background image signal VB is output.

Next, when entering the Dark TD in Border Ward, the key signal KEY (7th
Figure 1)) has a waveform whose content is the wipe signal WKY, whereas the @protection signal Vllll is in a state where matte color number 1v12 is selected, so the image signal VDII is the matte color number M.
2 N Wives % LWKY has the content of asking for a border.

For CrtrC, Te11ill(HR%tVL12)
II in the ^11 half of j Horta 8rd JTD! Il
Image signal V image signal anti-B and sahan mrtc, th image flaw signal A or matte signal MIY becomes the selected channel trap, whereas inversion key signal KEY reverses the change in the border anatomy of the image key code WKY. Since the waveform is drawn, the image signal VD12) can be obtained from the multiplier circuit B.
If a reverse slope is applied to the image signal vB and the image signal VA or the mat MIK at the inner end of the image signal VB, the image signal VB and the image signal VA or the image signal MIK will have the same characteristics as the image signal VB and the image signal VA or the image signal MIK. Thus, in the composite image 1lIIl, the screen is changed from the background image signal VB to the matte mark M2 at the start end of TD for 8 minutes, and the matte mark M2 continues to occur in the center of the border section of the border section TD. Picture gi at the end! The content will be like changing the screen to signal VA or matte number M1. Thus on-screen wipe pose 1
8) X second screen section 17 and first screen section 15
It is possible to obtain a screen in which the -1 plane is switched by the movement of this Wig border 18.

70 When the key signal KEY enters the ward 1 after the TDO, the key signal KEY becomes a state in which the key signal KEY exhibits a drum-shaped change of the title key TKY. And at this time, I [1llf11! No. VIJ
I as l1III statue number VA also I-ding mat signal M1
is selected, the 1ilI image signal VDII is connected to the signal VA or Ml'? The title key signal TKY remains for a while along the curve, then disappears with a slope (
It becomes like this. On the other hand, the image IJI+signal VD2) is in the selected state as title key signal TKYo)tfL by inverting the waveform. III body signal VD12
σ) After a certain period of time has elapsed, there will be a content such that the art world signal vB will rise with a slope.

(Synthesis 1111 Rinsyogo ■ 0 to 1 1st one-sided grudge 15
When entering, the image signal VA is activated according to the title key signal TKY.
After the title signal consisting of the matte signal M1 continues for a while, the title signal will have a content that is softly reversed to the OVB.

Therefore, if we proceed to the configuration of S in Figure 1, as described above with reference to Figure 6, the background IIkl created by the title 16 (-) will be wiped through the background IIkl and the second screen with only the background screen will be created. A title with a wipe border that changes the screen to s17.

Accordingly, according to the configuration S in FIG.
A composite key signal is formed by combining the g-no. By simply providing one mix circuit for both wipe key effects, the overall configuration of the special effect generator can be simplified.

In addition, in this way, if you get a normal suit with a border around the title formed so as to suit the background image - (Figure m2 (Al)) 'Y, please use Figure 8 (A1) and (A2) The entire range of the title key signal TKY should be carefully selected so as not to cause the title border signal TB to be calculated for the Kama circuit as in the FC border.

In addition, when obtaining the pause super described above with respect to Fig. 2 (B1), a title border signal TBY is generated that rises at the timing of the inner edge of the title key signal TKY as shown in Fig. 8 (B1) and (B2). In this way, the addition Ig circuit adds the matte signal MIK, and as a result, a Baumé with a particular color tone is added.

Further #C Fig. 2 (CI) K: When attending the shadow super mentioned above, the title rises at the timing of the trailing edge of the title key signal TKY as shown in Fig. 8 (C1) and (C2). Adding circuit 281 for adding border signal TB
It's okay to let them count 70.

Furthermore, in the case of the outline super described above with respect to FIG. 2 (DI) K, the title key signal TKY is raised in the border area as shown in FIG. K for the real circuit 4
What is necessary is to use a title border signal TB that does not add any additional information.

In the above-described embodiment, the present invention was applied to a screen 9 having a wipe Baume 18 colored by a matte signal M2 as shown in FIG. As shown in the figure, the first mt surface portion 15 and the second 1! ill Mukochi 17 Soften the darkness l1111U
If it is sufficient to form the screen transition section 31 that changes kJ, the key signal generating circuit section 12 generates a key signal WKY that changes the level f while keeping the slope in the screen conversion section TC as shown in FIG. 10. At the same time, the title key signal TKY0) showed the same change as the change in the key signal during the screen change period TC and during the MJ period, and the screen change period TC passed. Obtain a conjugated key signal KEY that has a shadow,
Mix circuit section 1
117) Multiplying circuit 2] and B are well-aligned.

Figure 10 (as shown in UK, the screen change section is 1℃)
In the section 61J, the background picture No. 15 VB'Y also transfers the background picture signal TB or the title signal TA to the input M1 during the screen change section TC, and then the title signal VA or the title signal VA or A composite image signal v that is converted to a soft background image signal VB that maintains Ml.
Can you get an O? In this way, by using the configuration shown in FIG. 1, it is possible to obtain a title superweigh image with no baud as shown in FIG. 9.

The title key signal TKY shown in FIG. 1 is generated by a title key signal generation circuit trap as shown in FIG. The title key signal generation circuit (input video signal V) is clipped in the NY clip circuit 35 to obtain a character signal input 831 with a predetermined time width as shown in FIG. A four-stage IH+nCK delay circuit with vertical signal carving circuits connected in cascade 37.
On 38th, 39th and 40th, I received the character @No.Jinriki831.

Each of the delay circuits 37 to 40 is composed of a delay circuit of n, delay tAjlncK, or as necessary, for example, n=o or n:
The instructions are controlled from 1 to 3, and the rt loco and trap are controlled by 0 or nCK9. Thus from each stage IH, 21(,3)i.

4) 1:M extension force 332.833, 834, SA (Fig. 12 (B2), (B3), (B4), (B5)
) or 11 (+1ICK.

2H+2nCK, 3H+3nCK, 4H+4n
CK iMftA output S32.5331S341S35
(Figure 13 (B2), (B3).

(B4), (B5) and FIG. 14 (B2), (B3),
(B4).

(B5) is obtained.

The fourth delay output 835 is 2NAM (non addi
ttvemix) Character signal input 83 to jtx circuit 43
0H delay output 536 consisting of 1 (FIG. 12 (Bl), 1st
Figure 3 (Bl), Figure 14 (old)) and N1M mix n
vertical direction signal 537 (FIG. 12 (O, FIG. 13 (0,
It is sent out as a signal component in FIG. 14(Q).

For this, the first and third delayed outputs 832 and 834
In the NAM mix circuit 4, the signal is mixed with the output of the path 43 by N1M, and is sent out as a signal component of the vertical signal S37.

In addition, the second -M extension output 33 and the NAM mix circuit 4
2, the output of the NAM mix U route and the N1M mix are sent out as signal components of the vertical signal 9S37.

Thus, the output of the NAM mix circuit 42 is applied to the widening circuit 45 as the output signal 837 of the vertical direction signal forming circuit. The widening circuit 45 is a circuit for widening the horizontal pulse width of each signal component of the vertical signal 837 by 2 clocks - 2CK, and includes ICK (representing one clock time in the horizontal direction) delay circuits connected in cascade with each other. 51 and 52
Vertical direction g! Receive No. 4 837. 2CK: M
t-output 851 is vertically mixed with Ig 837 and 81M in the NAM mix circuit 53, and the output of 7 is IcK! in the NAM mix circuit diagram. It is mixed with the blocking output 852 and 81M and given to the horizontal direction signal conversion circuit 60 as the output of the NAM mix circuit diagram or the output 853 of the expansion circuit 45.

The horizontal direction signal forming circuit mark is sent to the output S53 of the widening circuit 45.
5 (Figure 81412 (Q, Figure 13 (O, East Figure 14 (C)
) is delayed by 1 clock ICK to form a horizontal signal including the title border component. Extended circuit 61~I receive it.

The resulting ICK slow decay output S54 is the NAM mix circuit 6! 7CK delayed output 860 and 81M are mixed at J, 2CK delayed output S55 is mixed with 6CK delayed output S5 and 81M in NAM mix circuit 10, and 30K delayed output S is mixed with 81M at NAM mix circuit 71#C. ! 1m output 8 listens and 81M
The 8CK delayed output 861 or the widened output S53 is mixed in the NAM mix circuit 72 by 81M.

In addition to this, 4CK delay output S 57 or NAM mix circuit 73 outputs the output of NAM mix circuit 71 and NA.
IVI mix, its output or NAM mix circuit 7
4, the output is mixed with the NAM mix circuit 70Q) output, and the output is mixed with the NAM mix circuit 70Q) output in the NAM mix circuit 75. -I and 81M mix nl
Furthermore, the output is NAM mix circuit 76Vc
The output of the AM mix circuit 72 and the 81M mix are combined.

(The output of the NAM mix circuit 6 is applied as a horizontal direction signal 862 to the subtraction circuit 8 of the title border key signal output circuit) as an input.

This # arithmetic circuit 81 is given a '# arithmetic input and the second :a' extended output 8 buoyancy circuit 82 of the vertical deflection signal forming circuit 36, and this delayed output s63'4 horizontal The subtraction power S- that can be obtained by subtracting from 862 million times is 5 inches.
Following the waveform shaping circuit 83 consisting of two arithmetic circuits, it was sent out as the title super issue TKY.

Furthermore -j! The cicada output 863 passes through the switch circuit 86 of the character signal output circuit 85 and is also output to the Ksin2 waveform shaping circuit 8.
7 as a character signal LKY.

The switch circuit 86 K+1 is provided with the outline signal OL as a switching input, so that when the outline signal OL is obtained, this outline signal OL is sent out as LKY.

In the construction of Figure 1i111, each NAM mix circuit is connected to each mode of the title super, i.e., -
The title indicator signal TKY and the character signal LKYt corresponding to each mode are lost for the video manual VNVC by being subdivided according to the par, border, super, and outline super.

Figure 2 (Bl) Regarding K, the edge of the border super mode mentioned above is the vertical signal forming circuit 36 ONhM mix circuit 43, 41 is -f:rezo n-, 4 weighting is grasped.
Due to this, the output end of the NAM mix circuit 43 has a heat wave #jA as shown in Figure 12 (B1) and (B5). Ok4 delay output S36 output 835 is obtained, and the output terminal K of the NAII Tx circuit 41 (as shown in Fig. 12 (B2) and (B4))
1h welfare outputs 832 and 31 (with an amplitude of c3A)
A delayed output 834 is obtained.

This one [NAiV1 mix circuit 44 and 42 & B] has the 1st part.
Figure (B3) K is output from the AJV3 mix circuit 42 at the oscillating part of 2H or specific force S, and thus the number 837 of the ten thousand times is as shown in Figure 12 (0). The signal component S36°S32.So, 834, S3b is the 11th heat wave.

1, 1/2.2 vertical direction signal 837
is obtained.

This picture direction signal S37 is given to the horizontal direction multiplication forming circuit r6bO, which is widened by 2 CI for 2 clock times in the widening circuit 45.

NAMj tux circuit 7216 of horizontal @@ number formation circuit W
9, 70, 71 Kuruji Arashi, Den 3. g, 415
As shown in FIG. The change in each signal component is 836, 832 ~
It becomes a trap to add a border drum shape with a different rising slope and a size corresponding to that 5lvI. The horizontal direction signal components 536TBl and 8AT have a weight t of 4 corresponding to the signal components 836 and 835, and have a gentle slope t corresponding to the signal components 832 and 834.
The horizontal direction signal components 532T and 534T corresponding to the curve 411i have a slope S which is twice as large as that of the iris 411i. The horizontal direction signal component 533T corresponding to the cutting pressure signal component 833 has a slope of only 1 (kK) (the sum of 9 slopes of 4 times the slope).

(The signal component 533T corresponding to the 2H delayed output 833 of the horizontal signal 862 is sent out from the horizontal signal forming circuit at approximately the center of the pulse *i'crlffJJc#
A delayed character signal S is sent from the delay circuit δ2 based on the 2H delay output 833 of the %vertical direction g1 formation circuit, and this value is subtracted from the output 862 in the circuit 81 to fft, 3, n, As a result, as shown in FIG. 12 [F], the subtracted output 8b4 (Fig. The drum shape shaping circuit 83 is different and sends it out as a title border signal TKY.

On the other hand, the character signal output circuit ff- (Fi No. 863) is sent out as a character signal LKY through the switch circuit 66, thus the title border key scratch MTKY is transmitted to the key signal generation circuit section 12 of the irises 1 figure. The character signal LKYIC? is applied to the switch circuit 15 of ! Therefore, rather than generating the title border signal TB of the mix circuit 11 in FIG. , 111th order 53 at the upper and lower ends in the vertical direction
6T, 532T or 534T, depending on S
'N, since there is a slope, the color tone is different, and border super which forms bBB can be evened out.

In addition, in the mode in which the shadow superhero is obtained as shown in FIG. 2 (C1), the delay circuit 37 of the vertical direction
The value n which determines the delay of ~40*nCK is selected from 1 to 3, thus corresponding to FIG. 12(4) and (Bl) to (B5), FIG. As shown in B5), the 1H to 4H delay outputs 832 to 835 are 1) (+n
CK Ill! Thus, in the vertical signal forming circuit 10,000 times, the vertical signal 537 (0 in FIG. 13) obtained by NAM mix becomes Q delayed output 832, 833, 834. Corresponding signal components 832L, 533L, 834L, 8
3ri L is just sono(le
K, 3nCK, and 4nCK extend to the residence.

In this mode, the NAM of the horizontal signal forming circuit (a)
The IK detection of the mix paths 72 and 76 must be controlled, so that the horizontal signal 862 also has a signal component that is four times the same pulse width and phase as the vertical signal 837.

The 10,000 delay circuit 82 is configured to generate a delayed output 863 in the 1) ILTD period, which is generated in synchronization with the rising edge of each signal component of the horizontal direction signal 862, as shown in FIG. 13(g). The delay amount is controlled by K, and the subtraction circuit 810
The subtraction output 864 has a delay amount of 0, nCK + 2nCK, 3nCK r 4nC sequentially from the fall of the delayed character signal 863 that falls at KIH intervals as shown in the 13th column [F].
Signal component S3 whose pulse width extends backward like K
2S.

1 with 8338.8348.535S! This means that the pulse 1116 for 41 songs has a wide signal component S, and is sent out as the title border signal TKY. The pulse that maintains the state continues to be generated, and thus the first
As shown in Figure 5, 111 to the right of the title Faculty of Literature TT! l
Diagonal shadow T consisting of Vc signal part 832S~SAS
h51 (forms 1 and its resultant signal component 835S
This means that it is possible to generate a portion of the shadow SB2 whose width does not change based on the width.

The lower shadow part 81 of the shadow part SR for this r'L
(3 corresponds to FIG. 13, and as shown in FIG. 14, pulse 1@(of the horizontal direction signal S o2 is generated at a timing corresponding to the left end of one character capital TT, and has a pulse width of 833
It is controlled to have S balls 358 in sequence.

Thus, the title key signal TKY output in accordance with the horizontal direction signal 862 can equalize the title super having in the shadow portion 81 (') to 5 as described above with respect to FIG. 2 (CI).

Furthermore, in the outline super mode, the sentence Pf-
The switch circuit 861 of the signal output circuit 83 sends out the character signal LKY to the outline OL side, and the outline super with the border described above in FIG. 2 (Dl) is actually tested. be done.

〔Effect of the invention〕

As described above with respect to the embodiment of FIG.
In the YY key signal generation circuit section 12, the mix circuit *111C mixes the back image signal and the matte signal, and the mix circuit generates the title key signal TKY and the wipe key signal WKY). I! ] Since it is easy to install one K, it is easy to put into practice a special effect generation device that is simpler in overall design and construction.

[Brief explanation of drawings]

Figure 1 shows an example of a special effects teacher device based on the original 8AK; The conventional special effect teacher equipment is shown in the diagram of a forest school, the 41st stage shows the signal of each part, and the 5th diagram shows other examples of the special young fruit generation of rice. A simplified connection diagram, Figure 6 is a route map to explain the super wipe effect title, Figure 6 is a route map to explain the super wipe effect, Figure 8 is a signal showing the signals at various places in Figure 1. Fig. 9 is a diagram showing the actual form of a special young pot of the factory; Fig. 10 is a signal hourglass diagram showing another embodiment of the present invention; Fig. 11 is a title key signal generation circuit. Figures 12 to 14 are signal diagrams showing the signals of each part, and Figures 15 to 15 are diagrams of shadow super theory 8 that can be obtained by the configuration of Figure 11.
This is approximately the lh factor provided for A. 11...Mix circuit section, 12...Key signal generation circuit section, 2], Z...True square circuit %IF+, 16
, 18, 24, 25, 27... switch circuit,
26...Circuit for addition 3, A...Vertical direction signal formation circuit, 45...Expansion-○ circuit, (to)...Horizontal direction signal formation circuit, W...Title border key signal Output circuit, δ6
...Character signal output circuit. Representative Injin Keiki Tanabe Figure 1 Figure 6 Figure 89 Figure 14 Figure f7/2 Figure 13

Claims (1)

[Claims] Background 11! A key signal generation circuit that synthesizes a title key signal and a wipe key signal over time to form a composite key signal of ℃, in a special effect button generation device that performs a ghost wipe by superimposing a llIc title. and background-signal and title color tone or l! The title that determines the image of II is the pair of ends 'JiL [! 21, and is controlled by the pair of multiplier circuits or the composite key signal, and is controlled by the pair of multiplier circuits or the composite key signal.