KR100207676B1 - Image reproducing device and image recording/reproducing device - Google Patents

Abstract

The present invention relates to an image reproducing apparatus and an image recording / reproducing apparatus for reproducing an image and an audio from a recording medium on which an image and an audio are recorded, and an image reproducing apparatus and an image recording capable of effectively creating an atmosphere according to the reproduced image and an audio. An object of the present invention is to provide a playback device.

When the video camera unit 4 and the still camera unit 6 are integrally formed, and still shooting is performed by the still camera unit 6 at the time of recording a moving image by the video camera unit 4, the surrounding voice In addition, the shutter operation sound at the time of still shooting is recorded as an audio signal, and when the shutter operation sound recorded as the audio signal is reproduced at the time of reproducing the magnetic tape 2 by the video camera unit 4, the shutter sound detection unit 37 Detects and stops the running of the magnetic tape 3 to make the output video a still image for a predetermined time and to mute the output audio.

Description

Video playback device and video recording / playback device

1 is a block diagram of a first embodiment according to the present invention.

2 is a flowchart of the operation of the video control unit during reproduction of the first embodiment according to the present invention.

3 is a block diagram of a second embodiment according to the present invention.

* Explanation of symbols for main parts of the drawings

1: Still camera integrated video camera 2: Subject

3: magnetic tape 4: video camera

5: film 6: still camera portion

10: playback processing unit 12: video camera control unit

34: local pass filter (LPF) 35: audio signal reproduction processing unit

36: audio signal output circuit 37: shutter sound detection unit

39: shutter button 44: shutter

The present invention relates to an image reproducing apparatus and an image recording / reproducing apparatus, and more particularly, to an image reproducing apparatus and an image recording / reproducing apparatus for reproducing an image and an audio from a recording medium on which an image and an audio are recorded.

In the case of recording various types of video, there is a demand for recording the video as both a moving picture and a still picture. In this case, when recording a moving picture, a video camera and a still camera are required when recording a still picture, and both video and still cameras must be carried. According to this complaint, it is thought that it is a still camera integrated video camera which integrates a video camera and a still camera.

As described above, among still camera integrated video cameras, if a still image is taken by a still camera during scene shooting by the video camera to create an atmosphere of the video by the video camera, the still camera shutter sound or pseudo shutter sound is generated. The sound recording is superimposed on the voice of the audio signal, and the effect of reproducing the shutter sound or pseudo shutter sound is reproduced when the video sound is reproduced by the video camera.

In addition, a still camera integrated video camera having such an effect has already been filed by Japanese Patent Laid-Open No. 63-1564805.

In the conventional still camera integrated video camera described in Japanese Patent Laid-Open No. 63-156480, the shutter sound is reproduced at the time of playback by recording the shutter sound of the still camera in the sound of the video camera during simultaneous shooting of the still camera and the video camera. Since it is a moving picture as it is, it cannot be said to be effective enough. Furthermore, since a shutter sound is reproduced regardless of the playback picture during the moving picture and playback, there is a problem such as discomfort to the viewer.

The present invention has been made in view of the above problems, and an object thereof is to provide an image reproducing apparatus and an image recording / reproducing apparatus capable of effectively producing an atmosphere according to a reproduced image and an audio.

A video reproducing apparatus having reproducing means for reproducing the video signal and the audio signal from a recording medium in which the video signal and the audio signal are superimposed, wherein the video signal and the audio signal are reproduced in advance from the audio signal reproduced by the reproducing means. And a reproducing control means for controlling the reproducing means such that the image by the video signal becomes a still picture when the specific signal is detected by the detecting means.

The video recording / reproducing apparatus of claim 2, further comprising: a means for superimposing a video signal and an audio signal of a subject on a recording medium; and a reproducing means for reproducing the video signal and the audio signal recorded on the recording medium. A still camera means for photographing a still image on another recording medium, and when a still image of the subject is taken by a still camera means when the video signal and audio signal of the subject are superimposed by the recording means and recorded on the recording medium, A specific signal superimposing means for superimposing a predetermined specific signal on a voice signal and supplying it to the recording means and a specific signal detecting means for detecting a superimposed signal by the specific signal superimposing means from the audio signal reproduced by the reproducing means; And playback so that the video by the video signal becomes a still picture when the specific signal is detected by the specific signal detecting means. Jesaeng that has a control means for controlling the stage is achieved by the features.

According to claim 1 of the present invention, if a specific signal is detected from an audio signal during playback by recording a specific signal in a predetermined portion of the recording medium, the video signal of the portion where the specific signal is recorded becomes a still picture, and the recorded video and audio Playback that suits the mood can be done automatically.

According to claim 2, when the still image of the subject is taken by the still camera means while recording the video and audio of the subject by the recording means, a specific signal such as a release sound of the shutter is superimposed on the audio signal and recorded on the recording medium. In reproducing, by recording the specific signal recorded on the recording medium at the time of recording, the image recorded by the recording means together with the specific signal such as the release sound can be output as a still picture at the portion photographed by the still camera means. With respect to the video recorded by the recording means, effective playback can be performed in accordance with the atmosphere of the video and audio.

1 shows a block diagram of a first embodiment of the present invention. In the present embodiment, a still camera integrated video camera will be described as an image reproducing apparatus and an image recording / reproducing apparatus.

The still camera integrated camera 1 of this embodiment is integrally installed in the video camera unit 4 and the video camera unit 4, which record the moving image of the subject 2 and the sound around it on the magnetic tape 3, which is a recording medium. And the still camera part 6, the video camera part 4, and the still camera part 6 which record still images of the subject 2 on the film 5, and are commonly installed in the video camera part 4 and And a metering distance measuring unit 7 for measuring the brightness of the subject 2 and the distance to the subject 2 used for the exposure focus control of the still camera unit 6.

The still camera-integrated video camera 1 records a moving picture of the subject 2 and a voice around it by the video camera unit 4 magnetically on the magnetic tape 3 and at the same time a moving picture recorded on the magnetic tape 3. And reproducing the signal according to the voice, and further, the still camera unit 6 to the photosensitive film 5 and the video camera unit 4 and the still camera unit 6 are subjects obtained from the metering distance measuring unit 7. Exposure control and focus control are performed according to the brightness in (2) and the distance to the subject (2).

First, the configuration of the video camera section 4 will be described. The video camera unit 4 converts a moving image of the subject 2 and its surrounding sound into a video signal and an audio signal, and obtains a recording signal 8 and a recording processor 8 for obtaining a recording signal superimposing the video signal and the audio signal. The recording signal obtained from the magnetic tape is magnetically recorded on the magnetic tape 3 and the recording signal magnetically recorded on the magnetic tape 3 is read from the magnetic tape 3 to obtain a reproduction signal. The recording / reproducing section 9 separates the reproduction signal read out from the magnetic tape 3, the reproducing processing section 10 which obtains the video signal and the audio signal, and the recording / playback switching section 11 which switches between recording and reproducing. And a video control unit 12 for controlling the video camera unit 4 and an operation unit 38 for giving control instructions to the video control unit 12 to record and reproduce moving images and audio.

The recording processing unit 8 includes a CCD unit 13 for converting an image of the subject 2 into an electrical signal, a lens 14 for focusing the image of the subject 2 on the CCD unit 13, and a video control unit 12. The lens driver 15 driving the lens 14 in the direction of the arrow A in accordance with the focus control signal from the < RTI ID = 0.0 > 1), < / RTI > the aperture 16 and the aperture 16 for controlling the amount of light supplied to the CCD 13; Aperture driver 17 driving in accordance with the aperture control signal from (12), CDS circuit 18 for removing noise by performing correlated double sampling (CDS) processing in accordance with the electrical signal converted by CCD unit 13, CDS The video signal processor 19 performs a process of converting the noise-free electric signal into a video signal to which a synchronization signal, a burst signal, etc. are added, and performs FM modulation or the like to obtain an optimal playback signal during playback. ), A microphone 20 and a microphone 20 for converting sound around the subject 2 into an electric signal. Generated by the audio signal processor 22 and the video signal processor 19 that perform various processing such as noise removal on the amplified electric voice signal. The video taper overlaps the video signal and the audio signal generated by the audio signal processor 22 and the video signal overlaps the video signal and the audio signal. The amplifier 24 is configured to amplify to obtain a current that is optimal for writing to the circuit. In addition, the audio signal processing unit 22 performs FM modulation by the FM modulation circuit to record noise on the magnetic tape 3 while removing noise included in the signal from the microphone 20 with a low pass filter or the like. In order to reduce noise generated by the recording medium and modulation, the signal recorded on the magnetic tape 3 is subjected to processing such as emphasis / de-emphasis, compression / extension, and the like, thereby obtaining a high quality image with low noise. .

The recording / reproducing section 9 writes a recording signal to the magnetic tape 3 in contact with the magnetic tape 3, detects a magnetic change of the magnetic tape 3, and reads the reproduction signal. 25), (26), a drum (25) for rotating the magnetic head (25) and (26) rotatably and a drum motor for rotating the drum (27) in response to a drive signal from the video control unit (12). (28), the pinch roller 29 rotatably installed on one axial surface of the magnetic tape (3), the other side of the magnetic tape (3) is provided opposite the pinch roller (29), together with the pinch roller (29) It consists of a capstan motor 30 which holds the magnetic tape 3, rotates in accordance with the traveling control signal from the video control unit 12, and drives the magnetic tape 3 in the direction of the arrow B. The audio signal is recorded on the magnetic tape 3 by, for example, 8 mm video or VHS.

The reproducing processor 10 removes low frequency components from the reproducing signal amplified by the amplifier 31 and the amplifier 31 amplifying the reproducing signals read by the magnetic heads 25 and 26 from the magnetic tape 3. A high-pass filter 32 for taking out video signal components, a video signal reproducing processor 33 for outputting the video signal components extracted from the high-pass filter 32 to a video output terminal Tv, and demodulating them into a win signal. A low pass filter 34 for extracting a high frequency component from the reproduced signal amplified in step 31) and a voice signal reproducing processor for demodulating the voice signal component extracted from the low pass filter 34 into an original voice signal (35), the voice signal output circuit 36 for controlling the level of the voice signal reproduced by the voice signal reproduction processor 35 and outputting it to the voice output terminal Ts, and the voice reproduced by the voice signal reproduction processor 35; Analyze the components of the signal to detect the shutter sound of the still camera unit 6 It comprises a pulse signal which is at a high level when they were in the shutter sound detection unit 37 for supplying a video control unit 12, and reproduces the video signal and audio signal recorded on the magnetic tape 3.

The shutter sound detection unit 37 divides the supplied audio into a plurality of frequency bands, divides the signal components of each frequency band into respective frequency bands, and compares them with the signal components of the shutter sound set in advance. If it is within this fixed error, the shutter sound is analyzed by the same recognition method as that of the general voice recognition circuit which recognizes the shutter sound, and if it is recognized as the shutter sound, a shutter sound detection pulse that becomes a high level is output.

The recording / playback switching section 11 records / playback according to the recording / playback switching control signals from the magnetic heads 25 and 26 of the recording / playback section 9 and the amplifier 24 of the recording processing section 8. The connection to the magnetic heads 25 and 26 of (9) is switched to the amplifier 24 side of the recording processing section 8 or the amplifier 31 side of the reproduction processing section 10.

The video control unit 12 is metered According to the imaging control processing and the operation of the operation unit 38, the lens driving unit 15 and the aperture driving unit 17 are controlled in accordance with the metering information and the distance measuring information from the distance measuring unit 7 to perform optimal exposure and focus control. Recording / playback switching processing for switching recording / playback, operation of the operation unit 28 and rotation of the magnetic heads 25 and 26 and travel of the magnetic tape 3 in accordance with the detection pulse from the shutter sound detection unit 37. The odometer control process of controlling the controller is executed.

Next, the still camera section 6 will be described. The still camera unit 6 includes a shutter button 39, a lens 40, a lens driver 41, an aperture 42, an aperture driver 43, a shutter 44, a shutter driver 45, and a still camera controller. It consists of 46.

The shutter button 39 is an operation button for operating a still image when shooting a still image. For example, the shutter button 39 generates a pulse signal that becomes low level when the button is not operated and high level when the button is operated. Supply to the camera control unit 46.

The lens 40 focuses the light from the subject 2 onto the film. The lens driver 41 drives the lens 40 in the direction of arrow A 'according to the focus control signal from the still camera control unit 46 to focus.

The aperture 42 controls the amount of light from the subject 2. The aperture driving unit 43 drives the aperture 42 in accordance with the aperture control signal from the still camera control unit 46 to obtain an optimum aperture amount.

The shutter 44 controls the incidence of light from the subject 2 into the film 5. The shutter driver 45 drives the shutter 44 in accordance with a shutter drive control signal from the still camera controller 46. At this time, the driving sound of the shutter 44 is set to the volume obtained at the optimum level by the micro portion 20 of the video camera portion 4.

The still camera controller 46 determines the aperture amount of the aperture 42 and the opening / closing speed of the shutter 44 according to the exposure table set in advance according to the metering information from the metering distance measuring unit 7, and the aperture driver 43 Generates an aperture control signal to be supplied to the lens driver 41 and a shutter control signal to be supplied to the shutter driver 45, and generates a focus control signal to be supplied to the lens driver 41 according to the distance measurement information. Is always supplied to the lens driver 41 and the aperture driver 43, and the shutter control signal is supplied to the shutter driver 45 when the shutter button 39 is operated.

Next, the operation of the video recording by the still camera integrated video camera 1 will be described.

Light from the subject 2 is imaged on the CCD unit 13 via the lens 14 and the aperture 16. Light formed on the CCD unit 13 is converted into an electrical signal by the CCD unit 13, amplified by the CDS circuit 18, and then supplied to the image signal processing unit 19.

The electric signal supplied to the video signal processing unit 19 is converted into a signal to be recorded on the magnetic tape 3 and supplied to the video audio overlapping unit 23.

Meanwhile, the voice around the subject 2 is converted into an electric signal by the microphone 20 and amplified by the amplifier 21 and then supplied to the voice signal processing unit 22 and converted into a signal to be recorded on the magnetic tape 3. And supplied to the video-audio superimposing unit 23.

The video signal and the audio signal supplied to the video audio superimposition section 23 are superimposed and magnetically recorded on the magnetic tape 3.

At this time, when the shutter button 39 of the still camera 6 is operated, the still image of the subject 2 is recorded on the film 5, and the operation sound (shutter sound) of the shutter 44 is output to the microphone 20. Is recorded on the magnetic tape 3 as a voice signal.

At this time, the distance of the microphone 20 of the shutter 44 is composed of the video camera unit 4 and the still camera unit 6 integrally to be a certain distance so that the shutter sound is recorded at a substantially constant level.

The reproducing operation of the magnetic tape 3 by the video camera 4 of the present embodiment will be described below.

2 shows a flowchart of the operation of the video control unit 12 during reproduction of the magnetic tape 3.

When the play button of the operation unit 38 is operated, the video control unit 12 switches the recording and playback switching unit 11 so that the magnetic heads 25 and 26 are connected to the reproduction processing unit 10 side (step). S1-1, S1-2).

Next, the video control unit 12 drives the drum motor 28 and the capstan motor 30 to continuously drive the magnetic tape 3, and the magnetic tape 3 is driven by the magnetic heads 25 and 26. Is scanned (step S1-3).

In accordance with the above, the magnetic signals are generated in the magnetic heads 25 and 26 according to the change of the magnetization on the magnetic tape 3, and the electrical signals generated in the magnetic heads 25 and 26 are recorded and reproduced in the switching section 11. Is supplied to the regeneration processing unit 10 via.

Here, the signal supplied to the reproduction processing section 10 is amplified by the amplifier 31 and then supplied to the HPF 32 and the LPF 34. In the HPF 32, the video signal component is extracted by removing the audio signal component by removing the low frequency component from the signal from the amplifier 31.

The video signal extracted from the HPF 32 is supplied to the video signal reproducing processor 33, set as the video signal, output to the video output terminal Tv, and supplied to a video input terminal such as a TV.

In the LPF 34, the video signal component is removed by removing the high frequency component from the signal from the amplifier 31 to extract the audio signal component. The audio signal component extracted from the LPF 34 is supplied to the audio signal reproduction processing section 35 to restore the original audio signal, and is supplied to the audio signal output circuit 36 and the shutter sound detection section 37.

The audio signal recovered by the audio signal reproduction processing section 35 is level controlled by the audio signal output circuit 36, is outputted to the audio signal output terminal Ts, and supplied to the audio input terminal such as a TV.

In addition, the audio signal reconstructed by the audio signal reproducing processor 35 is supplied to the shutter sound detection unit 37 to detect the superimposed shutter sound.

The shutter sound detection unit 37 supplies the shutter sound detection pulse to the video control unit 12 when the shutter sound is detected in the audio signal.

When the video control unit 12 detects the shutter sound detection pulse from the shutter sound detection unit 37, the capstan motor 30 is stopped to scan the same portion of the magnetic tape 3 onto the magnetic heads 25 and 26. And outputting the same video signal so that the output video signal of the video output terminal Tv becomes a still picture, and the audio signal output circuit 36 mutes that the audio signal from the audio output terminal Ts is not output. The control is performed so as to be in a state (steps S1-4 and S1-5).

After maintaining the state of step S1-5 for a predetermined time, the video control unit 12 drives the capstan motor 30 again, and releases the mute state of the audio signal output circuit 36 to resume normal operation. The process returns to (steps I-6 and S1-7).

In addition, the video control unit 12 stops the drum motor 28 and the capstan motor 30 when the stop button of the operation unit 38 is operated (step S1-9).

As described above, according to the present embodiment, the shutter button 39 of the still camera unit 6 is operated at the time of shooting by the video camera unit 4 so that the operation sound of the shutter 44 when the shutter 44 is driven. Through this microphone 20, it is recorded on the magnetic tape 3 as an audio signal.

Next, when the operation sound of the shutter 44 recorded on the magnetic tape 3 is reproduced at the time of reproduction of the video camera unit 4, the reproduced image becomes a still image and the audio is muted to create an atmosphere suitable for the image and the audio. I can produce it.

3 shows a block diagram of a second embodiment of the present invention. In the drawings, the same reference numerals are given to the same components as in FIG. 1 and the description thereof will be omitted.

In this embodiment, the shutter sound is pseudo-generated and superimposed on the audio signal, recorded on the magnetic tape 3, and during playback, the video is reproduced temporarily by the video camera unit 4 by detecting the shutter sound generated by the pseudo sound. To stop.

In this embodiment, the pseudo shutter sound generating circuit 47 is inserted between the amplifier 21 and the audio signal processing section 22 of the video camera section 4 of FIG.

The pseudo shutter sound generation circuit 47 is supplied to the shutter sound generator 48 for generating a pseudo shutter sound according to the operation of the shutter button 39 and to the voice signal processor 22 according to the operation of the shutter button 39. And a switch 49 for switching the signal to be one of an audio signal from the circumference of the subject 2 from the amplifier 21 or a pseudo shutter sound signal from the shutter sound generator 48.

By providing the pseudo shutter sound generating circuit 47 as described above, the shutter sound can be recorded at a cleaner and more stable level, so that the shutter sound detected by the shutter sound detector 37 during reproduction can be reliably and accurately performed.

Further, in the first and second embodiments, an example in which the present invention is applied to a still camera integrated video camera has been described. However, the present invention is not limited thereto, and may be applied to a stationary video tape recorder.

As described above, according to claim 1 of the present invention, if a specific signal is detected in the audio signal during reproduction, the image becomes a still image. Thus, by recording the specific signal in advance in the portion suitable for the atmosphere of the image, The image can be taken as a still picture in the part, and an effective reproduction can be made in accordance with the atmosphere of the recorded video.

According to claim 2, when the video and audio of the subject are recorded by the recording means, when a still image of the subject is taken by the still camera means, a specific signal such as a release sound of the shutter can be superimposed on the audio signal. In reproducing, by recording a specific signal, the recorded image can be output as a still picture with a specific signal such as a release sound at the place where the still camera is photographed. It has the advantage of being able to perform effective regeneration according to the atmosphere.

Claims (2)

A video reproducing apparatus having reproducing means for reproducing the video signal and the audio signal from a recording medium in which a video signal and an audio signal are superimposed, wherein the predetermined signal is detected from the audio signal reproduced by the reproducing means. And reproducing control means for controlling said reproducing means so that the image by said video signal becomes a still picture when said specific signal is detected by said detecting means. A video recording / reproducing apparatus having recording means for superimposing a video signal and an audio signal of a subject on a recording medium, and reproducing means for reproducing the video signal and audio signal superimposed on the recording medium. A still camera means for photographing a still image of the subject on another recording medium, and the still image means of the subject being recorded by the still camera means when the video signal and the audio signal of the subject are superimposed by the recording means. Is specified, the specific signal superimposing means for superimposing a predetermined specific signal on the audio signal to be supplied to the recording means, and the specified signal superimposed by the specific signal superimposing means from the audio signal reproduced by the reproducing means. Specific signal detecting means for detecting a signal, and said specific signal is detected by said specific signal detecting means. Video recording / reproducing apparatus characterized by having a reproduction control means for controlling the reproducing means the image of the video signal such that a still image when the.