JPH0362072B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention regenerates a self-control signal recorded in an audio tape recorder, and adjusts various functions such as focusing of a video camera device according to the reproduced signal. This invention relates to a self-control television camera device that controls the operation of a television camera.

[Prior Art] Only background music or accompaniment music is recorded in advance on an audio tape such as a cassette tape, and by playing back this audio tape, even an amateur can sing along with the background music or accompaniment music. Audio devices configured in this manner have recently become popular.

I also saw amateurs singing like this.
Photographed with a TV camera and monitored on the spot
A TV camera device configured to display images on a TV is also being considered.

However, in such TV systems, the TV camera is simply fixed and the singer's image is projected on the monitor TV, so the screen is monotonous, flat and unchanging, leaving the viewer with no interest and interest. I can't feel it.

In this regard, videos shot by so-called experts, such as those seen on general TV broadcasts and commercially available program recording video tapes, are difficult to watch because they are produced using sophisticated shooting sense and technology. There is something that appeals to people's senses.

For example, in the case of popular music programs, a method is used to satisfy the viewers by arranging the shooting elements in terms of camera work according to the emotion, rhythm, etc. of the song.

[Problem to be solved by the invention] However, in implementing such a method,
Operating photographic equipment, including a TV camera, based on the photographic intention during photographing is a difficult task, even if more than one person is assigned to be in charge of each equipment. Moreover, if a general amateur tries to incorporate this, it is inevitable that the artist's sense, operational skills, etc. will be significantly inferior, and it will be difficult to produce a video that will satisfy the viewer. It will be extremely difficult.

Some conventional video camera devices perform recording and playback by servo control using servo control signals, but other video camera devices control the camera functions as described above using predetermined control signals. I stopped talking.

[Object of the invention] The object of the present invention is to solve the above problems.
A self-control television camera device that records signals from the video camera on the video tape recorder device by controlling the operation of each function of the video camera device using self-control signals recorded in advance in the audio tape recorder device. is to provide.

[Means for Solving the Problems] In order to achieve the above object, a self-control television camera device according to the present invention includes a video camera and a camera that convert captured image information and sound information into predetermined video video signals and audio signals and output them. A video camera device that includes peripheral equipment necessary for shooting, and records the video signal, audio signal, and predetermined control signal as recording signals on a recording medium, and reproduces the recorded signal from the recording medium to generate a reproduced signal. and an audio tape recorder that records and reproduces audio signals on a recording medium, wherein the control signal is used to control each function of the video camera device. A self-control signal serving as control data corresponding to a function, which is recorded on a recording medium of the audio tape recorder, is reproduced by the operation of the audio tape recorder, and the signal is used to control each function of the video camera device. and a camera device control section that controls the operation of the video camera and records an image video signal shot by the video camera on a recording medium of the video device according to the operation control, and controls the corresponding video camera according to the self-control signal. It is characterized by controlling the operation of each function of the device.

[Operation] When the audio tape recorder operates, a self-control signal is reproduced, and the operation of each function of the television camera device is controlled by this signal. Then, the television camera device is controlled in this manner to automatically take pictures, and the obtained video signal is recorded on the video device. Furthermore, this self-control signal controls peripheral equipment required for camera photography.

[Example] Embodiments of the present invention shown in the drawings will be described below.

FIG. 1 shows an embodiment of a self-control video camera device according to the present invention, in which 1 is an audio tape recorder (ATR), 21 is a video device (VTR), 22 is a video monitor device, 23, 3
2 is an audio monitor device, 24 is a decoding circuit, 25 is a microcomputer (CPU), 30 is a video camera device, and 31 is a switcher and mixing circuit.

A video monitor device 22 is connected to the video signal output terminal OUT ₁ of the VTR device 21, and an audio monitor device 23 is similarly connected to the audio signal output terminal OUT ₂ of the VTR device 21. Furthermore, ATR device 1
A decoding circuit 24 is connected to the self-control signal output terminal OUT ₃ of. The microcomputer 25 controls the operation of each function of the video camera device 30.

26 is a lighting control circuit, 27 is a camera position control circuit, 28 is a camera control circuit, and 29 is a video camera.
It consists of

FIG. 2 is a block diagram showing the above ATR device 1.
It is known per se. This ATR device 1 includes an input terminal IN ₁ for audio signals and an input terminal IN ₁ for self-control signals.

The audio signals and self-control signals are prerecorded on predetermined tracks of the audio tape, and each can occupy a single channel or multiple channels. The self-control signal is transmitted to the video camera 29 and its related control circuit 2.
This self-control signal and audio signal can be recorded on separate tracks of an audio tape.
It is also possible to multiplex and record on the same track. Further, a predetermined self-control signal can also be supplied from the outside through the input terminal _IN2 .

In the following explanation, an example of recording on separate tracks will be explained.

A self-control signal can be recorded and played back on an audio tape by replacing, for example, an array of digital signals "1" and "0" with corresponding binary frequency changes.

FIG. 3 shows an example of such signal replacement, in which the start signal S S is replaced with the start signal S _S for the start signal and data signal arrangement forming a word in the digital signal of FIG. 3a, for example, _FIG. Similarly, the "1" level of the data signal S _D is set to f ₂ Hz to the Hz signal.
The "0" level can be replaced with no signal in the signal, thereby allowing the ART device 1 to record in the normal audio band.

FIG. 4 is a block diagram illustrating a specific method for recording self-control signals in the ATR device 1, in which 2 is an f ₁ Hz signal oscillator, 3 is an analog switch, 4 is a start signal generator, and 5 is an f ₂ Hz signal. An oscillator, 6 an analog switch, 7 a data signal generator, and 8 a recording amplifier. In the above configuration, when the start signal generator 4 is on, the analog switch 3 is on, so the f ₁ Hz signal oscillator 2 is turned on.
The f ₁ Hz signal is passed to the recording amplifier 8, and when the data signal generator 7 is on, the analog switch 6 is turned on, so the f ₂ Hz signal from the f ₂ Hz signal oscillator 5 is passed to the recording amplifier 8. , when the start signal generator 4 and the data signal generator 7 are off, the analog switches 3 and 6 are also off, so f ₁ and
Since the f ₂ Hz signal is not allowed to pass through, there is no signal.
Therefore, only the f ₁ or f ₂ Hz signal is supplied from the recording amplifier 8 to the input terminal IN ₂ of the ATR device 1.

FIG. 5 is a block diagram illustrating a specific method for reproducing a self-control signal, in which 11 is an f ₁ Hz signal bandpass filter, 12 is an f ₂ Hz signal bandpass filter, 13 and 14 are reproduction amplifiers, and 15 is an f 1 Hz signal bandpass filter.
It is an OR circuit. In the above configuration, after the reproduction signals f ₁ and f ₂ Hz signals from the ATR device 1 pass through the bandpass filters 11 and 12, the reproduction amplifiers 13 and 14
The signal is amplified by the OR circuit 15 and converted into a digital signal as shown in FIG. 3a. In the above configuration
By reproducing the ATR device 1, a self-control signal is output from the terminal OUT ₃ to the decoding circuit 24, and an audio signal is output from the terminal OUT ₄ to the audio monitor device 32.

The decoding circuit 24 converts the self-control signal into a digital signal that satisfies the input conditions of the microcomputer 25 by performing the reverse process from a to b to b to a as shown in FIG. 3, for example. Thereby, the microcomputer 25 controls the operation of each function of the video camera device 30 according to the input information represented by the digital signal.

That is, in response to the self-control signal, a predetermined control signal is given to the illumination control circuit 26, camera position control circuit 27, and camera control circuit 28, and these circuits control the desired image such as hue, saturation, and brightness for the video camera 29. Functions of shooting conditions for obtaining signals, as well as iris (aperture), video zoom, audio zoom, focus, shooting angle,
It operates to control the functions of the position as well as various functions such as lighting equipment necessary for camera photography.

Of the above functions, for hue and saturation, it is generally enough to change the signal level of each primary color of red, blue, and green using the color temperature switching knob and white balance adjustment knob, and this can be done using a known electric drive circuit or This can be easily done by adjusting each volume using motor control or the like.

The brightness and iris can be adjusted by controlling the aperture of the lens, for example, by driving a motor.

Zoom and focus can also be adjusted by motor drive, for example, and if autofocus is adopted like in recent cameras, it is only necessary to send signals to start and end motor zoom.

The shooting angle and position can be adjusted by moving the base supporting the video camera horizontally and vertically using a motor.

On the other hand, the illumination can be adjusted by sending signals to turn on and off light bulbs of multiple colors or to dim them using the control circuit 26.

The video signal output from the video camera 29 based on the above control results is sent to the switcher and mixing circuit 31. The stitcher and mixing circuit 31 selects either the other video signal from the input terminal IN ₅ and the video signal from the video camera 29, or mixes both and outputs the mixed signal to the video input terminal IN ₃ of the VTR device 21.
supply to In addition to inputting the audio signal from the video camera 29 to the audio signal input terminal IN ₄ provided on the VTR device 21, the audio signal mixed with the audio signal from the audio output terminal OUT ₄ of the ATR device 1 is inputted. You can also do that.

As a result, a video signal and an audio signal are recorded on a predetermined portion of the video tape used in the VTR device 21.

Additionally, a video monitor device 22, a VTR device 21, and an ATR device 1 provided in the VTR device 21 are provided.
Video and audio can be monitored by the audio monitoring devices 22 and 32 provided in the. Furthermore, each of the output terminals OUT ₁ , OUT ₂ , and OUT ₃ can be provided with a plurality of channel output terminals, and can be used as a recording terminal for other VTR devices and ATR devices.

Furthermore, according to the invention, the video camera device 3
Two or more video cameras 29 can be used, and it is also possible to switch between them according to a self-control signal, or to display divided or overlapping images on the same screen. It is.

As is clear from the above description, according to this embodiment,
A video camera device comprising an audio tape recorder device, a video tape recorder device, a video camera and its related control circuit, and controlling the operation of the video camera mounting based on a reproduction signal of the audio tape recorder device. Since the device is configured to record the signal from the video camera on the video tape recorder device, it is similar to recording a video signal and recording audio at the same time, just like making a video tape recording a general TV broadcast or commercially available program. Since signals can be recorded, it is possible to create images using sophisticated photographic sensations and techniques.

Therefore, it is possible to produce a video that appeals to the viewer's senses, thereby giving the viewer a sense of satisfaction.

[Effects of the Invention] As explained above, according to the present invention, pre-recorded self-control signals are played back from the audio tape recorder to control the operation of each function of the video camera, so that anyone can control the operation of each function of the video camera. Photographs can be taken accurately under desired conditions.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention;
FIG. 2 is a block diagram showing the audio tape recorder used in the above embodiment, FIG. 3 is a diagram showing the self-control signal in the present invention, and FIGS. FIG. 3 is an illustrative block diagram. 1...ATR device, 21...VTR device, 22...
...Video monitor device, 23, 32...Audio monitor device, 24...Decoding circuit, 25...Microcomputer, 26...Lighting control circuit, 27...
Camera position control circuit, 28... camera control circuit,
29...video camera, 30...video camera device.

Claims (1)

[Scope of Claims] 1. A video camera device including a video camera that converts captured image information and sound information into predetermined video signals and audio signals and outputs them, and peripheral equipment required for camera shooting, and audio signal recording. an audio tape recorder in which a self-control signal for controlling each function of the video camera device is pre-recorded on a recording medium for use with the video camera; a camera device control section that controls each function of the device; and a video device that records and plays back video and audio signals output from the video camera on a recording medium in response to control by the self-control signal. A self-control television camera device characterized by: 2. The camera device control section operates a level adjustment section to vary the color level of the image video signal to control at least one of hue and saturation, and controls a lens aperture section and a camera operation adjustment section. and at least one of the following: brightness, iris, zoom, focus, shooting angle, and shooting position.
2. The self-control television camera device according to claim 1, further comprising a drive section for controlling one of the two. 3. The peripheral device is a lighting device, and the camera device control section includes a lighting device control section that controls at least one of brightness and position of the lighting device using the self-control signal. A self-control television camera device according to claim 1. 4. The self-control television camera device according to claim 1, wherein the camera device control section includes a microcomputer that operates each function of the video camera device based on the self-control signal.