JP2659449B2 - Magnetic recording / reproducing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording and reproducing apparatus capable of superimposing an image such as a title.

[Conventional technology]

In a conventional magnetic recording and reproducing apparatus, for example,
As described in Japanese Patent No. 2577, a title is known in which a title captured by an image scanner is superimposed on an image. However, in this prior art, only the image signal is superimposed. In order to record an audio signal corresponding to this image signal, after-recording must be performed after recording to replace the desired audio signal. In addition, there was a problem that it was very troublesome.

On the other hand, there is also known a magnetic recording / reproducing apparatus capable of superimposing audio in order to produce an acoustic effect on not only images such as titles but also images such as superimposed titles ( For example, JP-A-64-39879).

That is, a title image memory for storing image signals such as titles is provided, and a title sound memory for storing audio signals of desired contents is also provided, and image signals and audio signals are read from the title image memory and the title sound memory as necessary. These are added to the video signal from the video camera and the audio signal from the microphone, respectively. The image signal stored in the title plane memory is obtained from the video camera, and the audio signal stored in the title sound memory is obtained from the microphone.

Further, in the above prior art, a sound effect memory in which a plurality of sound effect signals are described is further provided, and one of these sound effect signals is selected and read out, and the sound signal from the microphone is superimposed. I am able to impose. For the title image, a character generator is also provided so that the created title surface can be superimposed on the video signal from the video camera.

[Problems to be solved by the invention]

However, in the above-mentioned conventional technology, the image to be superimposed is confirmed by the viewfinder of the video camera, and the sound to be superimposed is confirmed by the speaker or earphone of the video camera. The video signal recorded is similar to the video signal recorded on the magnetic recording medium, and the audio signal provided to the speaker or earphone is also similar to the audio signal recorded on the magnetic recording medium. ,
Images and sounds to be superimposed cannot be confirmed while recording, and these confirmations must be made before recording.

This is particularly problematic when one of a plurality of types of titles is selected and superimposed, and one of a plurality of types of audio is selected and superimposed.

That is, in the above-described conventional technique, before shooting a scene, a title or sound that seems to be optimal for the scene to be shot is selected. However, shooting of the scene is actually started and the selected title or sound is super-injected. Even if you pose,
In particular, audio may not match the shooting scene or title. In such a case, it is conceivable that another preferable sound is selected again. However, for confirmation and selection, the recording must be temporarily stopped. If the recording is interrupted, a necessary scene is not recorded. . Therefore, if the recording of the scene is not interrupted, it is necessary to superimpose the voice selected before shooting as it is, even if it is not preferable.

SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic recording / reproducing apparatus which solves such a problem and enables superimposing by selecting and confirming title images and sounds arbitrarily without interrupting recording.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a first storage unit for recording a desired image signal, a second storage unit for recording a desired audio signal, and a first storage unit for storing a video signal of a moving image. First and second adding the desired image signal read from
And third and fourth adding means for adding the desired audio signal read from the second storage means to the audio signal accompanying the video signal of the moving image.

[Action]

The video signal from the first addition means and the audio signal from the third addition means are recorded signals, and the video signal from the second addition means and the audio signal from the fourth addition means are supplied to a monitor. You.

As a result, the recorded video signal and audio signal and the video signal and audio signal to be provided to the monitor can be superimposed on images and sounds independently of each other, and can be monitored without affecting the recorded contents. It is possible to confirm and select titles and sounds.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a magnetic recording and reproducing apparatus according to the present invention integrated with a video camera, wherein 1 is a magnetic recording and reproducing apparatus integrated with a video camera, and 2 is a camera. A lens barrel including a lens, 3 is an image scanner sensor, 4 is a camera processing circuit which processes a signal from the image scanner sensor 3 to generate a video signal, and 5 is a video signal and an image signal representing a title or the like (hereinafter, referred to as a title) , A title image signal), a video processing circuit 6 for processing the video signal and converting it into a signal suitable for recording, 7 a recording amplifier, 8 a video memory for storing the title image signal, 9 Is a video head, 10 is a magnetic recording medium, 11 is a microphone, 12 is an audio amplifier, 13 is an audio signal and an audio signal for a title image signal (hereinafter referred to as a title audio signal). An adder for adding an audio processing circuit for converting into a signal suitable for recording and processing an audio signal 14, 15 is a magnetic amplifier, 16 a memory for storing the title sound signal, 17 is a speech head.

In FIG. 1, a subject (not shown) is photographed by an image scanner sensor 3 through a lens 2 to obtain an electric signal. The electric signal is processed by a camera processing circuit 4 and converted into a video signal. Assuming that the subject has an image such as a title, a title image signal is output from the camera processing circuit 4 and the title image signal is stored in the video memory 8 by a predetermined operation of the user. When shooting a scene, the title image signal is stored in the video memory 8 in advance.

When a title image is to be superimposed during shooting of a scene, a title image signal is read from the video memory 8 by a user's predetermined operation, and a video signal of a moving image output from the camera processing circuit 4 and a title image signal are output. The signal is added by the adder 5. An output video signal of the adder 5 is supplied to a video head 9 via a video processing circuit 6 and a recording amplifier 7, and is recorded on a magnetic recording medium 10. In this way, it becomes possible to superimpose and record the title image during shooting.

On the other hand, the audio signal output from the microphone 11 is amplified by the audio amplifier 12 and then input to the adder 13. When the image scanner sensor 3 captures a title image and stores the title image signal in the video memory 8, a title audio signal is generated from the microphone 11 and
Is stored. The title image signal and the title audio signal may be stored in the respective memories 8 and 16 at the same time, but these memories may be independent of each other. In this way, when the title audio signal is stored in the audio memory 16 in advance, when the user wants to superimpose the title audio during shooting of the scene, the user performs a predetermined operation, and the title memory is stored in the audio memory 16. The audio signal is read out, and the adder 13 adds the audio signal from the microphone 11 and the title audio signal read from the audio memory 16. The output audio signal of the adder 13 is supplied to the audio head 17 via the audio processing circuit 14 and the recording amplifier 15, and is recorded on the magnetic recording medium 10.

As described above, according to this embodiment, a title audio signal to be superimposed can be stored in advance by providing an audio memory, and a title audio signal is read from the audio memory at an arbitrary scene during shooting of a scene. Since recording can be performed by adding to the audio signal of the scene from the microphone, not only conventional video superimposition but also audio superimposition becomes possible, and the function is remarkably improved.

In FIG. 1, the signals stored in the video memory 8 and the audio memory 16 are signals from the image scanner sensor 3 and the microphone 11, respectively. An input terminal for each signal may be provided, and a title image signal or a title audio signal may be input from these input terminals.

Further, the video memory 8 and the audio memory 16 may be provided outside the main body of the magnetic recording / reproducing apparatus 1.

FIG. 2 is a block diagram showing another embodiment of the magnetic recording / reproducing apparatus according to the present invention, in which 21 is an external memory such as an IC card for storing video information and audio information, and 22 is an external memory 21
A reading circuit 23 for reading video and audio information signals from the apparatus, and 23 is a conversion circuit for converting these information signals into video signals and audio signals. The parts corresponding to those in FIG. .

In FIG. 2, an external memory 21 such as an IC card has
For example, a title information signal such as a title image or a title sound generated by a personal computer or the like is stored.

The video signal output from the camera processing circuit 4 when the image scanner sensor 3 captures an image is supplied to an adder 5.
The audio signal output from the microphone 11 is
And is supplied to the adder 13.

At this time, the external memory in which the title information signal is stored
The title information signal is read by the reading circuit 22 by mounting the magnetic recording / reproducing device 21 on the magnetic recording / reproducing apparatus 1, and the information signal is converted into a title image signal or a title audio signal by the conversion circuit 23. Title image signal is added by adder 5
Is added to the video signal from the camera processing circuit 4, and the title audio signal is added to the audio signal from the audio amplifier 12 by the adder 13.

According to this embodiment, the title image and the title sound can be superimposed at an arbitrary scene during scene shooting without providing a storage circuit in the magnetic recording / reproducing apparatus main body. Smaller size and lower power consumption can be realized, and the writing of title information to an external memory such as an IC card can be performed using a personal computer or the like, so that more sophisticated title images and title sounds can be easily realized. .

In FIG. 2, an external memory such as an IC card is used.
The reading circuit 22 is assumed to operate automatically when the camera 21 is attached. However, a circuit for writing title information to the external memory 21 is provided in the magnetic recording / reproducing apparatus 1 so that the video signal from the camera processing circuit 4 The audio signal from the audio amplifier 12 can be written into the external memory 21 as title information.

In addition, although an IC card is shown as an example of the external memory 21, the present invention is not limited to this, and IC memory, disk, DAT (Digital Audio Tape Recorder)
Needless to say, other external memories can be used.

FIG. 3 is a block diagram showing still another embodiment of the magnetic recording / reproducing apparatus according to the present invention, in which 31 is an output terminal of a video signal, 32 is an output video signal of the adder 5 and a title image from the video memory 8. An adder for adding a signal to the signal; 33, a switch for selecting whether or not the title image signal from the video memory 8 is input to the adder 5; 34, an output terminal for an audio signal; 35, an output audio signal from the adder 13; An adder for adding the title audio signal from the audio memory 16 to the adder 13; a selection switch 36 for selecting whether or not the title audio signal from the audio memory 16 is input to the adder 13; 37, an input terminal for a control signal of the selection switch 33 , 38
Is an input terminal for a control signal of the switch 36, 39 is an input terminal for an address selection signal for selecting and reading a title image signal stored in the video memory 8, and 40 is an audio memory.
16 is an input terminal of an address selection signal for selecting and reading the title audio signal stored in 16. The same reference numerals are given to the portions corresponding to FIG.

In this embodiment, a title image and a title sound can be confirmed even during shooting of a scene.
The operation during shooting of a scene in this embodiment is shown in FIGS.
This is similar to the embodiment shown in the figure.

In FIG. 3, when a plurality of title image signals are stored in the video memory 8, the title image signals of the video memory 8 are sequentially or randomly selected and read out by an address selection signal from the input terminal 39. It is. These read title image signals are added to the video signal from the camera processing circuit 4 by the adder 32 and output from the output terminal 31 to an external display device (not shown).
Therefore, the video signal output from the output terminal 31 can be monitored, whereby the title image based on the title image signal output from the video memory 8 can be arbitrarily confirmed regardless of the recording operation.

When a title image is to be superimposed during the shooting of a scene, a control signal is input from an input terminal 37 by a user operation, whereby the switch 33 is turned on, and the title image signal from the video memory 8 and the camera are turned on. The video signal from the processing circuit 4 is added by the adder 5, supplied to the video head 9 via the video processing circuit 6 and the recording amplifier 7, and recorded on the magnetic recording medium 10.

Similarly, for the audio signal system, the audio memory 16,
An output terminal 34, an adder 35, a switch 36, and input terminals 38 and 40 are provided, and the same operation as the above-described superimposition processing of the title image is performed, so that the title sound can be arbitrarily confirmed during scene shooting, A desired title sound can be superimposed at a desired scene.

According to this embodiment, when a plurality of pieces of title information are stored in the memory, the title image or title sound to be superimposed can be reproduced during the shooting or recording of the scene without stopping the operation. It can be arbitrarily checked and selected, and a desired title image or title sound can be quickly superimposed at a scene to be superimposed, thereby greatly improving usability.

FIG. 4 is a block diagram showing still another embodiment of the magnetic recording / reproducing apparatus according to the present invention.
, A confirmation switch provided between the audio memory 16 and the adder 35, and 43 is a control signal input terminal for controlling the confirmation switches 41 and 42. The parts corresponding to those in FIG. 3 are denoted by the same reference numerals.

In FIG. 4, the confirmation switches 41 and 42 are normally in the OFF state. When it is desired to check the title image and the title sound, a control signal is input from the input terminal 43 by a user's desired operation, and the selection switches 41 and 42 are turned on. Thus, similarly to the embodiment shown in FIG. 3, the title image and the title sound can be arbitrarily confirmed. Thereby, usability is further improved.

FIG. 5 is a block diagram showing still another embodiment of the magnetic recording / reproducing apparatus according to the present invention. In FIG. 5, reference numeral 44 denotes an output terminal of a video signal to an electronic viewfinder (hereinafter, referred to as EVF), and 45 denotes an output terminal. This is an output terminal of an audio signal to an earphone which is not used, and portions corresponding to FIGS. 3 and 4 are denoted by the same reference numerals.

In this embodiment, an EVF output terminal 51 and an earphone output terminal 52 are provided separately from the video signal output terminal 31 and the audio signal output terminal 34, respectively.

In FIG. 5, a title image signal from a video memory 8 is supplied to an adder 32 via a switch 41, added to a video signal by scene shooting output from a camera processing circuit 4, and then output from an output terminal 44 to an EVF. Supplied to The title image signal output from the video memory 8 is supplied to the adder 5 via the selection switch 33, added to the video signal from the camera processing circuit 4 and output from the output terminal 31. It is supplied to the circuit 6.

Therefore, a video signal to be recorded on the magnetic recording medium 10 is obtained from the output terminal 31, and a video signal in which the title image signal is arbitrarily superimposed is supplied from the output terminal 44 to the EVF.

In the audio signal system, at the same time, an output terminal 34 and an output terminal 45 for the earphone are provided, and perform the same operation as the above-described superimposition processing of the title image, and arbitrarily output the title audio during the shooting of the scene. Can be supplied to the earphones.

According to this embodiment, by providing the output terminal 44 and the output terminal 45, the title image can be arbitrarily and selectively confirmed by the EVF during the shooting of the scene, and the title sound can be confirmed by the earphone. improves.

FIG. 6 is a block diagram showing still another embodiment of the magnetic recording / reproducing apparatus according to the present invention, and portions corresponding to FIG. 5 are denoted by the same reference numerals. In this embodiment, as shown in FIG.
The video signal is output from 1 and the audio signal is output from the output terminal 34. The operation of this embodiment is the same as that of the embodiment shown in FIG.

In each of the above embodiments, the magnetic recording / reproducing apparatus is integrated with the video camera.However, the present invention is not limited to this.For example, the video recording apparatus does not include a video camera or a microphone. A so-called stationary magnetic recording / reproducing apparatus may be used, and it goes without saying that the voice can be superimposed similarly.

[Effects of the Invention] As described above, according to the present invention, images and sounds to be superimposed are stored in advance by the image and sound storage means, and necessary images and sounds can be selected,
Confirmations can be made without interrupting the recording,
Superimpose of video and audio is possible in any scene.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a magnetic recording / reproducing apparatus according to the present invention, and FIGS. 2 to 6 are block diagrams showing another embodiment of a magnetic recording / reproducing apparatus according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Magnetic recording / reproducing apparatus, 2 ... Lens barrel including a camera lens, 3 ... Image scanner sensor, 4 ... Camera processing circuit, 5 ... Adder, 8 ... Video memory, 11 ... Microphone, 13 ... Adder, 16 ... Audio memory, 21 ... External memory, 22 ... Reading circuit, 23 ... Converter circuit, 31 ... Output terminal, 32 ... Adder, 34 ... Output terminal, 35 ... … Adders, 41,42… Confirmation switches.

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Toshiro Sagawa 1410 Inada, Katsuta-shi, Ibaraki Prefecture Tokai Plant, Hitachi, Ltd. (56) References JP-A-63-172577 (JP, A) JP-A Sho 64-39879 (JP, A)

Claims (4)

(57) [Claims] 1. A magnetic recording / reproducing apparatus for recording / reproducing a video signal of a moving image and an audio signal accompanying the video signal, a first storage means for storing a desired image signal, and a second storage means for storing a desired audio signal. Storage means; first and second addition means for adding the desired image signal read from the first storage means to the video signal of the moving image; and the audio signal accompanying the video signal of the moving image And third and fourth addition means for adding the desired audio signal read from the second storage means, and the video signal output from the first addition means and the third addition means The audio signal output from the second addition means is used as a recording signal, and the video signal output from the second addition means and the fourth
And a sound signal output from the adding means is supplied to an external monitor means. 2. The apparatus according to claim 1, wherein said first switch means for selectively supplying said desired image signal to said second adder means, and said desired audio signal to said fourth adder means. And a second switch means for selectively performing the supply of the magnetic recording and reproducing apparatus, wherein a superimpose can be confirmed. 3. The video signal of the moving image and the input source of the desired image signal are the same, and the audio signal and the desired audio signal accompanying the video signal of the moving image are the same. A magnetic recording / reproducing apparatus, wherein the same input source is used. 4. The storage device according to claim 1, wherein said first and second storage means are external storage means, wherein said desired image signal is stored as image information and said desired audio signal is stored as audio information, respectively. Information reading means for reading the image information and the audio information from the external storage means; first converting means for converting the read image information into the desired image signal; And a second converting means for converting the signal into an audio signal.