JPH0562506B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a special effect generating device, and particularly to a special effect generating device that can simplify operations by an operator.

[Background technology and its problems] For example, in a switcher used when producing television programs, it has become multifunctional so that it can realize a large number of modes to produce complex screen effects for multiple video signals. is progressing. When a switcher becomes multi-functional, an operator needs to sequentially designate a desired mode from among a large number of modes as necessary.

In response to such demands, conventionally, as a means of specifying each mode, adjustment elements such as preset buttons and adjustment volume pushbutton switches are arranged on the operation panel of the console, and when one of these operation elements is The second mode allows the operator to select the desired mode by performing a selection operation.
The configuration shown in the figure was used.

In FIG. 2, reference numeral 1 denotes a console, and operation input sections 1A, 1B, corresponding to three series of special effect circuits,
1C and send out the produced broadcast program video signal.
It has a fourth operation input section 1D corresponding to a DSK (down stream keying) special effects circuit. The first to third operation input sections have similar configurations that implement substantially the same functions, whereas the fourth operation input section 1D has a configuration that implements a DSK title keying function.

The first to third operation input units 1A to 1C each have a switching mode specifying unit 11, and include switching modes such as "mix", "num mix", "wipe", "cut",
"Title keying", "Video keying",
It consists of a push button switch 11A that specifies "chroma keying" etc., and its switching is controlled by the fader lever 1.
2.
The switching speed can be input and displayed using a preset memory section 13 having a numeric keypad.

When the title keying, video keying, or wipe mode is selected in the switching mode specifying section 11, the conditions necessary for each mode are set in the title keying specifying section 14, video keying specifying section 15,
Each setting can be made by the wipe control section 16.

The title keying designation section 14 includes a push button switch 14 for designating a title keying mode.
A and adjustment volume 14 for adjusting color
It has B.

The video keying designation section 15 also operates a push button switch 1 for designating the keying mode.
5A, and an adjustment volume 15B for adjusting the color, mask position, size, etc. of the video signal to be keyed.

The wipe control unit 16 includes a push button switch 16A that can specify a wipe pattern, border conditions,
It has an adjustment volume 16B for adjusting the aspect ratio of the wipe pattern, etc., and a display 16C for displaying the wipe pattern number.

In addition to this, each operation input section 1A, 1B, 1C includes a title keying specifying section 17 consisting of a push button switch for specifying a title signal used in title keying, and a video signal processed in another series. It has a reentry effect circuit designation section 18 consisting of a push button switch for reentry.

The fourth operation input section 1D includes a switching mode specifying section 21 consisting of a push button switch 21A for specifying the switching mode, a fader lever 22, and a condition when the title keying mode is specified in the switching mode specifying section 21. for specifying
It has a DSK title keying designation section 23.
The DSK title keying specification section 23 is a push button switch 2 for specifying the keying mode.
3A, and an adjustment volume 23B for adjusting the color of the title. This operation input section 1D also has a title key designation section 24 and a reentry effect circuit designation section 25, like the operation input sections 1A to 1C.

There are many types of wipe patterns that can be specified in the wipe control section 16, and the wipe pattern specification section includes a push button switch 31A that can specify each wipe pattern, and an effect circuit selection push button switch 31B that indicates the system number to be used. 31
is provided in common to the operation input units 1A to 1C.

Which series of the first and third special effect circuits and DSK special effect circuits are to be used is determined by the effect circuit selection section 3 consisting of the corresponding pushbutton switch 32A.
2 can be selected. Also provided is a title selection section 33 consisting of a pushbutton switch 33A corresponding to a title signal that can be used similarly.

In addition, 34 is a preview designation section consisting of a pushbutton switch 34A corresponding to the series to be previewed, and 35 is a pattern position designation section.

As shown in Fig. 2, the console 1 of the conventional special effect generating circuit has a large number of pushbutton switches, adjustment volume control elements, and other operating elements arranged on the board, categorized by each series and specifyable mode. However, due to the large number of operating elements, when an operator wants to specify a desired mode as necessary, it is extremely troublesome to select an operating element.
Therefore, when attempting to make the conventional switcher more multi-functional, it is inevitable that operational complexity will increase cumulatively.

[Purpose of the invention]

The present invention has been made in consideration of the above points, and
To obtain a so-called "auto wipe" mode in which the wipe pattern for a video input signal is automatically and sequentially switched, a special effect generating device is proposed which does not increase the burden required for adjustment operations by an operator.

[Summary of the invention]

In order to achieve this purpose, the present invention includes:
A switch circuit that mixes a plurality of video input signals according to a mix control signal generated in response to the operation of a lever switch and sends out a mix video output signal, a keyboard section that selects and specifies a plurality of mix modes to be sequentially executed, and a keyboard. a display unit that displays a plurality of mix modes specified by the switch circuit; and an arithmetic circuit that generates a mix control signal in response to the operation of a lever switch and causes the switch circuit to sequentially execute the plurality of mix modes specified by the switch circuit. A plurality of mix modes are sequentially switched by operating a lever switch, and the sequentially switching pattern is displayed on a display section.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to the drawings. In FIG. 1, a keyboard section 42 for specifying the mix mode and its control conditions and a display section 43 for displaying the contents are provided on the operation panel surface of the console 41.

The keyboard section 42 has first, second, and third operation input sections 44A, 44B, and 44C provided corresponding to first, second, and third special effect circuits. The first and second operation input sections 44A and 44B have substantially the same configuration, and the mix mode designation section 45
, a fader lever 46 , and a reentry effect circuit designation section 47 .

The mix mode designation section 45 is a mix mode,
That is, a mode specifying section 45A consisting of pushbutton switches corresponding to "Nummics", "Administration", "Wipe", "Keying", etc., respectively, and a condition specifying section 45A consisting of pushbutton switches for specifying more detailed setting conditions for each mode. Section 45B and
It includes a keying designation section 45C which is a push button switch that indicates the type of keying when a key gun is selected and designated in the mode designation 45A, and a numerical setting mode designation switch 45D having a push button switch configuration.

The third operation input section 44C has the same configuration as the first and second operation input sections 44A and 44B except that the keying designation section 45C is omitted. A title keying effect is applied to the video signal obtained by mixing according to the selection setting conditions thus set, and a video output signal (for on-air use) is sent out.
Configures the operation section of the DSK special effects circuit.

In addition to this configuration, first to third operation input units 4
4A to 44C have a title keying designation part 48, and the title keying part 48 of the third operation input part 44C includes a condition designation pushbutton switch 48A and a numerical setting mode designation pushbutton switch 48B. Furthermore, it has a designation switch 48C regarding the title color and a numerical value setting mode designation switch 48D.

In this embodiment, the first to third operation input units 4
4A to 44C are provided with a chromakey condition specifying section 51 in common, including a pushbutton switch 51A for specifying chromakey conditions, such as "mask", "auto", "shadow", etc., and a switch 51B for specifying a numerical setting mode. It is made up of.

Further, in the first to third operation input sections 44A to 44C, a wipe pattern when the wipe mode is specified is specified in the wipe pattern specifying section 52. The wipe pattern designation section 52 includes a push button switch 52A that corresponds to a large number of wipe patterns.
and a change designation switch 52B that designates a change in the selected wipe pattern.
Here, the change designation switch 52B is a push button switch corresponding to "rotation", "corner", "auto wipe", etc., and especially "auto wipe".
When operating the pushbutton switch corresponding to 5, for example, 5 wipe pattern designation switches
Specify and operate 2A. These five wipe patterns selected at this time are used in the special effects circuit so as to be sequentially switched in a predetermined order each time the fader lever 46 is operated.

The keyboard section 42 has a special effect circuit selection section 53 for selecting and specifying a series of special effect circuits to be used. The keyboard section 42 also has a pattern position setting section 54 and a preset memory section 55.

The display section 43 includes a display 61 made of, for example, a cathode ray tube, and a cursor setting section 62. The display device 61 displays the setting conditions when numerical settings are required for the mix mode and conditions specified in each designation section of the keyboard section 42, and also displays a scale in the center of the display screen using the numerical values to be set as control conditions. By moving the cursor 63 to the display IB, numerical values can be set, and the wipe pattern display ID selected and specified in the first to third operation input sections 44A to 44C is displayed on the left side of the screen. Display a pattern for each series.

The cursor setting section 62 has a pair of setting pushbutton switches 62A and 62B for moving the cursor on the display 61, and by pressing the setting pushbutton switch 62A, the cursor 63 on the display 61 is moved to the left. The cursor 63 is moved to the right while the setting button switch 62B is operated.

As described above, the keyboard section 4 of the console 41
When the mix mode or control conditions are set in step 2, the switch output of the keyboard section 42 is read into the arithmetic circuit 65 as shown in FIG. It can be done. At this time, the arithmetic circuit 65 determines the mode specified by the keyboard section 42 in the mode determining means 66 and outputs the mix data.
Send MID.

Also, the cursor setting section 62 of the display section 43
The switch output obtained at is given to the movement amount determining means 67 of the arithmetic circuit 65. This movement amount determining means 67 is a setting pushbutton switch 62A or 6
While 2B is pressed, calculate the amount by which the cursor 63 should be moved to the left or right, and calculate the amount of movement data MVD.
Send out.

The mix data MID of the mode determining means 66 and the movement amount data MVD of the movement amount determining means 67 are supplied to the display control data generating means 68, which generates display control data DID corresponding to the specified mode and cursor movement amount. and the display device 69.

Also, the mix data of the mode determining means 66
Movement amount data of MID and movement amount determination means 67
MVD is given to the numerical data generating means 70, and numerical data DGD corresponding to the designated mix mode and movement amount data for the cursor is given to the switch circuit 71 together with the mix data MID.

The switch circuit 71 connects the first to third operation input sections 4
It includes special effect circuits corresponding to 4A to 44C (Fig. 1), and after selecting a plurality of input video signals VDIN to be mixed in a switch matrix, it is set to a mode corresponding to mix data MID and to numerical data DGD. The color that corresponds to the quantity represented by the color. The mix of video signals with large ratios, etc.
Execute keying and send out video output signal VDOUT.

Such a function of the arithmetic circuit 65 can be realized by calculation by a microcomputer, for example, as shown in FIG.
It is configured in the CPU 75, takes in data from the keyboard section 42 and the cursor setting section 62 via the data bus 76, and executes the calculations described above with reference to FIG. Memory 77 is used via data bus 76 to perform such operations.

Data obtained by the calculations of the CPU 75 is provided to the switch circuit 71 via the data bus 76 and also to the display device 69.

The display device 69 receives the display control data DID given from the CPU 75 through the graphic display controller 80 and outputs the display control data.
Drive data that expresses the contents of DID as a flat image
It is converted into MD and given to a decoder 81 composed of, for example, RAM. The decoder 81 converts the drive data MD into three primary color signals R, G, and B and supplies them to the display 61.

In the above configuration, the first to third operation input sections 44A to 44C (FIG. 1) of the keyboard section 42 are
The mode or control condition specified in is given to the arithmetic circuit 65 (FIG. 3), mix data MID and numerical data DGD containing the specified mode are given from the arithmetic circuit 65 to the switch circuit 71, As a result, the switch circuit 71 mixes the plurality of input video signals VDIN based on the specified contents, adds special effects, and sends out the output video signal VDOUT.

At the same time, the arithmetic circuit 65 provides the display device 69 with display control data DID that causes the display device 69 to display a display screen corresponding to the mode specified by the keyboard section 42 .

At this time, on the display screen of the display device 61, as shown in FIG. 5, letters or symbols IA representing numerical conditions that need to be set for the mode selected on the keyboard section 42 are displayed, for example, on the right side edge.
Along with the display of each numerical condition, a scale display IB having a horizontally elongated scale is displayed on the left side. A cursor 63 is displayed for each scale on the scale display IB. If the numerical condition to be set here is a color condition, a color sample display IC synthesized by data corresponding to the display position of the cursor 63 is displayed horizontally above the scale display IB.

In addition, when a wipe pattern is specified by the first to third operation input units 44A to 44C, the three wipe pattern display IDs are displayed on the left side edge of the display screen of the display device 61. Ru. For example, when a wipe pattern with a border such as the one shown by code ID1 in FIG. The four setting conditions for the border width, the brightness, chromaticity, and saturation of that color are displayed as numerical conditions IA "BORDWIDTH",
The characters "LUM", "HUE", and "SAT" are displayed, and a scale display IB and a cursor 63 are displayed for each numerical condition display IA. Along with this, a color sample is displayed.
Expose the IC.

The numerical condition display IA, scale display IB, and color sample display IC are displayed on the display 61 when the numerical setting mode designation switch 45D of the mix mode designation section 45 of the first operation input section 44A is operated. In this state, each scale display
The position of the IB cursor 63 is in the cursor setting section 6
It can be moved to the left or right by selectively operating the second setting push button switch 62A or 62B. Therefore, the operator can move and set the cursor 63 to a desired scale position for each numerical condition display.

As the setting conditions for the bordered wipe pattern are specified in this way, the colors synthesized according to the setting conditions are displayed on the color sample display IC.
In this way, the operator can immediately know the color he has set.

It is sufficient to set the numerical conditions for each setting mode specified in this way for the numerical condition display displayed on the display 61, and as long as all settings for the display are completed, the specified setting mode is set. This means that the settings for the selected mode can be executed with just the right amount.

Second, for example, when the modulation mode is specified as a special effect, the horizontal amplitude "H-AMP" is displayed as the numerical condition display IA on the display 61.
Horizontal frequency “H-FRQ”, vertical amplitude “V-
AMP” and vertical frequency “V-FRQ”.
Therefore, the operator can set the cursor 63 of each scale to the scale display IB for these four setting conditions.
The amplitude and frequency of the swing of the wipe pattern in the horizontal and vertical directions can be easily set by moving the wipe pattern in the horizontal and vertical directions.

For example, if the aspect ratio is specified as the third mixing mode setting condition, the horizontal width "H-WIDTH" is displayed as the numerical condition display IA on the display 61.
Since the vertical width "V-WIDTH" is displayed, the operator only has to set these two setting conditions.

When such settings are completed, a mixing operation of a plurality of video signals is performed as a regular operation in the switch circuit 71 (FIGS. 3 and 4) under the setting conditions.

In such a steady operating state, the keyboard section 4
When the operator specifies the "auto wipe" designation switch 52BX among the change designation switches 52B of the wipe pattern designation section 52 shown in FIG. Specify up to five wipe patterns by operating the button.

At this time, the arithmetic circuit 65 displays the display device 69.
A maximum of five specified wipe patterns are sequentially arranged and displayed from left to right in a predetermined priority order. For example, as shown in FIG. 6, when five wipe patterns ID11 to ID15 are set for the first operation input section 44A,
Five wipe patterns are displayed in a horizontal line in the upper position. Further, if, for example, one wipe pattern ID21 is specified to the second operation input section 44B, only one wipe pattern ID21 is displayed in the middle position.
Further, if three wipe patterns ID31 to ID33 are designated to the third operation input section 44C, they are displayed in a horizontal row at the lower position.

In addition, the arithmetic circuit 65 displays a cursor 63, for example, below the displayed wipe pattern, and moves this cursor 63 to the position of the currently used wipe pattern to determine which wipe pattern is currently being used. Depending on the pattern, the operator can immediately know whether a special effect has been added.

In the embodiment shown in FIG. 6, "auto wipe"
The wipe patterns that can be switched in the "auto wipe" mode are arranged horizontally in a row, and a cursor is provided below them. They may be provided in a relative positional relationship that allows the operator to visually determine whether the pattern is being used. Further, other displays may be used instead of the cursor; for example, various displays such as drawing a line above or below the wipe pattern or adding a frame display can be used.

〔Effect of the invention〕

As described above, according to the present invention, when "auto wipe" is specified as the mix mode, the wipe pattern that is automatically switched in auto wipe is displayed on the display, so that the current video input The operator can accurately grasp the contents of the special effects added to the signal from time to time, and thus the operator can perform program production work with peace of mind, thus obtaining a special effect generating device with good operability. be able to.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a console applied to an embodiment of the special effect generating device according to the present invention, and FIG.
The figure is a schematic diagram showing a conventional console, FIG. 3 is a circuit diagram showing the functions of the special effect generating device according to the present invention, FIG. 4 is a system diagram showing the hardware configuration to realize this, and FIGS. FIG. 6 is a schematic diagram showing the display on the display of FIG. 1. 41...Console, 42...Keyboard section,
43... Display section, 44A to 44C... First to third operation input section, 48... Title keying specification section, 51... Chromakey condition specification section, 5
2...Wipe pattern specification section, 52A...Wipe pattern specification switch, 52B...Change specification switch, 52BX...Auto wipe specification switch,
55... Preset memory section, 61... Display unit,
62...Cursor setting section, 63...Cursor.

Claims (1)

[Scope of Claims] 1. A mix mode selection switch that selects a desired mix mode from among a plurality of mix modes; a lever switch that outputs a signal indicating a mix ratio in each mix mode; and an output signal of the mix mode selection switch; and a switch circuit that mixes and outputs the first and second video input signals in a selected mix mode and at a ratio according to the position of the lever switch based on the output signal of the lever switch. In the apparatus, display control data generating means is supplied with the output signal of the mix mode selection switch and generates graphic data corresponding to the mix mode selected by the mix mode selection switch; and the display control data generation means is supplied with the output signal of the display control data generation means. and display means for displaying a graphic corresponding to the selected mix mode.