JPH08317333A - Image reproducing device and image recording/reproducing device - Google Patents

Abstract

PURPOSE: To enable a video reproducing device and a video recording/ reproducing device for reproducing video and sound for a recording medium in which video and sound are recorded to effectively create an atmosphere corresponding to reproduced video and sound. CONSTITUTION: A video camera part 4 and a still camera part 6 are formed integrally, and when still photographing is executed by the still camera part 6 at the time of recording a dynamic images by the video camera part 4, a shutter operation sound at the time of still photographing is recorded as a sound signal together with a peripheral sound. When the shutter operation sound recorded as the sound signal is reproduced at the time of reproducing a magnetic tape 2 obtained by the video camera part 4, the reproduced sound is detected by a shutter sound detection part 37, the traveling of a magnetic tape 3 is stopped, an output image is turned into a still picture for a fixed time, and an output sound is muted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video reproducing apparatus and a video recording / reproducing apparatus, and more particularly to a video reproducing apparatus and a video recording / reproducing apparatus for reproducing video and audio from a recording medium on which video and audio are recorded. Regarding

[0002]

2. Description of the Related Art When recording various images, there is a demand for recording the images as both moving images and still images.
At this time, a video camera is required to record a moving image, and a still camera is required to record a still image, and both the video camera and the still camera must be carried, which is troublesome. In response to this dissatisfaction, a still camera-integrated video camera in which a video camera and a still camera are integrated has been considered.

Among such still camera-integrated video cameras, when a still image is taken by the still camera when a scene is taken by the video camera in order to create an atmosphere of an image by the video camera, a shutter sound of the still camera or There has been an effect that the pseudo shutter sound is superimposed and recorded on the audio of the video camera, and the effect of reproducing the shutter sound or the pseudo shutter sound at the time of reproducing the video and audio by the video camera.

A still camera-integrated video camera having such an effect has already been applied for in Japanese Patent Application Laid-Open No. 63-156480.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the conventional still camera integrated video camera shown in No. 156480, the shutter sound is reproduced at the time of reproduction by recording the shutter sound of the still camera in the audio of the video camera when the still camera and the video camera are simultaneously photographed. However, it is not effective enough because the image remains as a moving image, and the shutter sound is played regardless of the playback image during playback of the moving image, which gives a feeling of strangeness to the viewer. There was such a problem.

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

[0007]

According to a first aspect of the present invention, in a video reproducing apparatus having a reproducing means for reproducing a video signal and an audio signal from a recording medium in which the video signal and the audio signal are superposed and recorded, reproduction is performed. Detecting means for detecting a preset specific signal from the audio signal reproduced by the means,
And a reproduction control means for controlling the reproduction means so that the image by the video signal becomes a still image when the specific signal is detected by the detection means.

According to a second aspect of the present invention, there is provided a video having means for superimposing a video signal and an audio signal of a subject to record on a recording medium, and reproducing means for reproducing the video signal and the audio signal superposed on the recording medium and recorded. In a recording / reproducing apparatus, a still camera means for photographing a still image of a subject on another recording medium, and a still camera means for recording a subject's video signal and audio signal on the recording medium in a superimposing manner. When a still image of a subject is captured, a specific signal superimposing unit that superimposes a specific signal set in advance on an audio signal and supplies it to the recording unit, and a specific signal detecting unit that detects the specific signal superimposed by the reproducing unit. And a reproduction control means for controlling the reproduction means so that the image by the video signal becomes a still image when the specific signal is detected by the specific signal detection means. It made.

[0009]

According to the first aspect of the present invention, by recording the specific signal in a predetermined portion of the recording medium in advance, when the specific signal is detected in the audio signal during reproduction, the image of the portion where the specific signal is recorded The signal becomes a still image, and the reproduction can be automatically performed according to the atmosphere of the recorded video and audio.

According to the second aspect of the present invention, when a still image of the subject is taken by the still camera means while the image and sound of the subject are being recorded by the recording means, a specific signal such as a shutter release sound is sent as an audio signal. Can be recorded on a recording medium by superimposing it on the recording medium, and at the time of reproduction, by detecting the specific signal recorded on the recording medium, the recording means together with the specific signal such as a release sound at the place where the still camera means has photographed. Since the image recorded in step 1 can be output as a still image, it is possible to effectively reproduce the image recorded by the recording means in accordance with the atmosphere of the image and sound.

[0011]

1 is a block diagram of a first embodiment of the present invention. In the present embodiment, a video camera integrated with a still camera will be described as a video reproducing apparatus and a video recording / reproducing apparatus. The still camera-integrated video camera 1 of the present embodiment is provided integrally with the video camera unit 4 and the video camera unit 4 for recording the moving image of the subject 2 and the sound around it on the magnetic tape 3 as a recording medium, and the film 5 The brightness of the subject 2 which is provided for the still camera unit 6 for recording the still image of the subject 2, the video camera unit 4, and the still camera unit 6 and is used for exposure / focus control of the video camera unit 4 and the still camera unit 6, It is composed of a photometry / ranging unit 7 that measures the distance to the subject 2.

In the video camera 1 with a built-in still camera, the moving image of the subject 2 and the sound around it are magnetically recorded on the magnetic tape 3 by the video camera unit 4, and the magnetic tape 3 is used.
It is possible to reproduce a signal corresponding to the moving image and the sound recorded in the above, and to record a still image of the subject 2 on the photosensitive film 5 by the still camera unit 6. At this time, the video camera unit 4 and the still camera unit 6 perform exposure control and focus control according to the brightness of the subject 2 and the distance to the subject 2 obtained by the photometry / distance measuring unit 7.

First, the structure of the video camera unit 4 will be described. The video camera unit 4 converts the moving image of the subject 2 and the audio around it into a video signal and an audio signal, and obtains a recording signal in which the video signal and the audio signal are superposed, and a recording processing unit 8.
The recording signal obtained by the recording processing unit 8 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. A recording / reproducing unit 9, a reproduction processing unit 10 for separating a reproducing signal read from the magnetic tape 3 by the recording / reproducing unit 9 to obtain a video signal and an audio signal, and a recording / reproducing switching unit for switching recording / reproducing. 11, a video control unit 12 for controlling the video camera unit 4, and an operation unit 38 for giving a control instruction to the video control unit 12, and performs recording and reproduction of moving images and sounds.

The recording processing unit 8 is a CCD (Charge Coupled Device) unit 13, C for converting the image of the subject 2 into an electric signal.
A lens 14 for focusing the image of the subject 2 on the CD unit 13, a lens drive unit 15 for driving the lens 14 in the direction of arrow A according to a focus control signal from the focus video control unit 12, and a CCD unit 13 are supplied. A diaphragm 16 for controlling the amount of light, and a diaphragm driving unit 17, C for driving the diaphragm 16 according to a diaphragm control signal from the video control unit 12.
A CD that removes noise by performing correlated double sampling (CDS) processing on the electric signal converted by the CD unit 13.
The S circuit 18 and the CDS circuit 18 convert the noise-removed electric signal into a video signal to which a sync signal, a burst signal and the like are added, and perform FM modulation and the like to obtain an optimum reproduction signal during reproduction. Video signal processor 19,
A microphone 20 that converts a sound around the subject 2 into an electric signal, an amplifier 21 that amplifies the electric sound signal converted by the microphone 20, and various processes such as noise removal are performed on the electric sound signal amplified by the amplifier 21. Video signal superimposing section 23 for superimposing the video signal generated by the audio signal processing section 22, the video signal processing section 19 and the audio signal generated by the audio signal processing section 22, and the video signal superimposed by the video audio superimposing section 23. And an amplifier 24 for amplifying a recording signal composed of an audio signal to obtain an optimum current for recording on the magnetic tape 3. The audio signal processing unit 22 removes noise included in the signal from the microphone 20 with a low-pass filter or the like, and performs FM modulation by the FM modulation circuit in order to record the magnetic tape 3. The signals recorded on the magnetic tape 3 are subjected to processing such as emphasis / de-emphasis and compression / expansion in order to reduce noise generated by the recording medium and modulation, etc., and a high-quality image with less noise is obtained. Has been done.

The recording / reproducing unit 9 contacts the magnetic tape 3, writes a recording signal on the magnetic tape 3, detects a magnetic change of the magnetic tape 3, and reads the reproduced signal from the magnetic heads 25, 26 and the magnetic head 25. , 26 rotatably holding the rotary drum 27, a drum motor 28 for rotating the rotary drum 27 in response to a drive signal from the video controller 12, a pinch roller 29 rotatably provided on one side of the magnetic tape 3, On the other side of the magnetic tape 3,
The pinch roller 2 is provided so as to face the pinch roller 29.
The magnetic tape 3 is sandwiched between the magnetic tape 3 and the magnetic tape 3 and rotated in response to a running control signal from the video control unit 12.
Is composed of a capstan motor 30 that travels in the direction of arrow B, and video and audio signals are recorded on the magnetic tape 3 by, for example, the 8 mm video system or the VHS system.

The reproduction processing section 10 removes low frequency components from the reproduction signals amplified by the amplifier 31 and the amplifier 32 for amplifying the reproduction signals read from the magnetic tape 3 by the magnetic heads 25 and 26, and extracts the video signal components. The high-pass filter 32 and the video signal component extracted by the high-pass filter 32 are demodulated to the original signal, and the high-frequency component is removed from the reproduction signal amplified by the video signal reproduction processing unit 33 and the amplifier 31 output from the video output terminal Tv. , A low-pass filter 34 for extracting an audio signal component, an audio signal reproduction processing unit 35 for demodulating the audio signal component extracted by the low-pass filter 34 into an original audio signal, a level of the audio signal reproduced by the audio signal reproduction processing unit 35, etc. And is reproduced by the audio signal output circuit 36 and the audio signal reproduction processing unit 35 which control the audio signal output from the audio output terminal Ts. The components of the voice signal are analyzed, and when the shutter sound of the still camera unit 6 is detected, the shutter sound detection unit 37 supplies a high-level pulse signal to the video control unit 12, and is recorded on the magnetic tape 3. Play video and audio signals.

The shutter sound detector 37 divides the supplied sound into a plurality of frequency bands, and the signal components of the respective frequency bands are respectively set as the shutter sound signal components which are internally set for each frequency band in advance. By comparing, if the components of each frequency band are within a certain error, it is recognized as a shutter sound,
The shutter sound is analyzed by the same recognition method as that of a general voice recognition circuit, and if the shutter sound is recognized, a shutter sound detection pulse having a high level is output.

The recording / reproducing switching unit 11 is provided between the magnetic heads 25 and 26 of the recording / reproducing unit 9 and the amplifier 24 of the recording processing unit 8 and the amplifier 31 of the reproducing processing unit 10, and recording from the video control unit 12 is performed. The connection between the recording / reproducing unit 9 and the magnetic heads 25 and 26 is switched to the amplifier 24 side of the recording processing unit 8 or the amplifier 31 side of the reproducing processing unit 10 according to the / reproduction switching control signal.

The video control unit 12 controls the lens driving unit 1 according to the photometry information and the distance measurement information from the photometry / distance measurement unit 7.
5 and the diaphragm drive unit 17 to perform optimal exposure and focus control, an image pickup control process, a recording / reproduction switching process that switches recording / reproduction according to an operation of the operation unit 38, an operation of the operation unit 38, and a shutter. A running system control process for controlling the rotation of the magnetic heads 25 and 26 and the running of the magnetic tape 3 is executed according to the detection pulse from the sound detecting unit 37.

Next, the still camera section 6 will be described. The still camera unit 6 includes a shutter button 39 and a lens 4.
0, a lens driving unit 41, a diaphragm 42, a diaphragm driving unit 43, a shutter 44, a shutter driving unit 45, and a still camera control unit 46. The shutter button 39 is an operation button that is operated when capturing a still image. For example, a pulse signal that is at a low level when the button is not operated and is at a high level for a certain period when the button is operated is generated and supplied to the still camera control unit 46. To do.

The lens 40 focuses the light from the subject 2 on the film. The lens driving unit 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 perform focusing.
The diaphragm 42 controls the amount of light from the subject 2. The diaphragm drive unit 43 drives the diaphragm 42 according to the diaphragm control signal from the still camera control unit 46 to obtain an optimum diaphragm.

The shutter 44 controls the incidence of light from the subject 2 on the film 5. The shutter drive unit 45 drives the shutter 44 according to a shutter drive control signal from the still camera controller unit 46. At this time, the drive sound of the shutter 44 is set to a volume that can be captured at an optimum level by the microphone unit 20 of the video camera unit 4. The still camera controller unit 46 determines the aperture amount of the aperture 42 and the opening / closing speed of the shutter 44 based on the exposure table set in advance in accordance with the photometric information from the photometry / distance measuring unit 7, and supplies it to the aperture drive unit 43. A diaphragm control signal and a shutter control signal to be supplied to the shutter drive unit 45 are generated,
A focus control signal to be supplied to the lens driving unit 41 is generated according to the distance measurement information, the diaphragm control signal and the focus control signal are constantly supplied to the diaphragm driving unit 41 and the diaphragm driving unit 43, and the shutter control signal is the shutter button. It is configured to supply the shutter drive unit 45 when 39 is operated.

Next, the operation of the still camera integrated video camera 1 during image recording will be described. The light from the subject 2 is imaged on the CCD unit 13 via the lens 14 and the diaphragm 16. The light imaged on the CCD unit 13 is the CCD unit 1.
3 is converted into an electric signal, amplified by the CDS circuit 18, and then supplied to the video signal processing section 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 superposing unit 23. On the other hand, the sound around the subject 2 is converted into an electric signal by the microphone 20, amplified by the amplifier 21, and then supplied to the sound signal processing unit 22 to be converted into a signal to be recorded on the magnetic tape 3,
It is supplied to the video / audio superimposing unit 23.

The video signal and the audio signal supplied to the video / audio superposing section 23 are superposed and magnetically recorded on the magnetic tape 3. At this time, when the shutter button 39 of the still camera unit 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 propagated to the microphone 20 and other voices are transmitted. Is recorded on the magnetic tape 3 as an audio signal.

At this time, since the distance between the shutter 44 and the microphone 20 is constant because the video camera unit 4 and the still camera unit 6 are integrally formed, the shutter sound is recorded at a substantially constant level. Will be done. Next, the reproducing operation of the magnetic tape 3 by the video camera unit 4 of this embodiment will be described.

FIG. 2 shows an operation flowchart of the video control section 12 when the magnetic tape 3 is reproduced. When the reproduction button of the operation unit 38 is operated, the video control unit 12 first sets the recording / reproduction switching unit 11 to the magnetic heads 25 and 26.
Is controlled to be connected to the reproduction processing unit 10 side (steps S1-1 and S1-2).

Next, the video control section 12 drives the drum motor 28 and the capstan motor 30 to drive the magnetic tape 3 to scan the magnetic tape 3 by the magnetic heads 25 and 26 (step S1-3). As a result, an electric signal is generated in the magnetic heads 25, 26 according to the change in the magnetization on the magnetic tape 3, and the magnetic heads 25, 2
The electric signal generated at 6 is supplied to the reproduction processing unit 10 via the recording / reproduction switching unit 11.

Here, the signal supplied to the reproduction processing unit 10 is amplified by the amplifier 31, and then the HPF 32 and the LPF.
34. In the HPF 32, the audio signal component is removed by removing the low frequency component by the signal from the amplifier 31, and the video signal component is taken out. HPF32
The video signal taken out in step 3 is supplied to the video signal reproduction processing unit 33, set to the video signal, output from the video output terminal Tv, and supplied to the video input terminal of a television or the like.

Further, the LPF 34 removes the high frequency component from the signal from the amplifier 31 to remove the video signal component and extract the audio signal component. The audio signal component extracted by the LPF 134 is supplied to the audio signal reproduction processing unit 35, restored to the original audio signal, and supplied to the audio signal output circuit 36 and the shutter sound detecting unit 37. The audio signal restored by the audio signal reproduction processing unit 35 is level-controlled by the audio signal output circuit 36, output from the audio signal output terminal Ts, and supplied to an audio input terminal such as a television.

The audio signal reconstructed by the audio signal reproduction processing section 35 is supplied to the shutter sound detecting section 37, and the superimposed shutter sound is detected. When the shutter sound detector 37 detects a shutter sound in the audio signal, it supplies a shutter sound detection pulse to the video controller 12. When the video control unit 12 detects a shutter sound detection pulse from the shutter sound detection unit 37, the capstan motor 30 is stopped to cause the magnetic heads 25 and 26 to scan the same portion of the magnetic tape 3 and output the same video signal. Then, the output video signal of the video output terminal Tv is controlled to be a still image, and the audio signal output circuit 36 is controlled to be in a mute state in which the audio signal is not output from the audio output terminal Ts (step S1-4). S1-
5).

The video control unit 12 operates in step S1.
After the state of -5 is maintained for a certain period of time, the capstan motor 30 is driven again, the mute state of the audio signal output circuit 36 is released, and the normal reproduction state is restored (steps S1-6 and S1-7). Also, the video control section 1
When the stop button of the operation unit 38 is operated, the second device stops the drum motor 28 and the capstan motor 30 to bring them into a stopped state (step S1-9).

As described above, according to the present embodiment, when the shutter button 39 of the still camera unit 6 is operated and the shutter 44 is driven when the video camera unit 4 shoots, the operation sound of the shutter 44 is transmitted through the 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 when the video camera unit 4 is reproduced, the reproduced image becomes a still image and the sound is muted to hide the atmosphere suitable for the image and the sound. Can be issued.

FIG. 3 shows a block diagram of the second embodiment of the present invention. In the figure, the same components as those in FIG. In this embodiment, a shutter sound is artificially generated, superposed on an audio signal and recorded on the magnetic tape 3, and at the time of reproduction, reproduction is performed by the video camera unit 4 by detecting the pseudo shutter sound. It tries to freeze the video temporarily.

In this embodiment, a 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 outputs from the amplifier 21 a signal to be supplied to the shutter sound generation unit 48 that generates a pseudo shutter sound according to the operation of the shutter button 39 and the audio signal processing unit 22 according to the operation of the shutter button 39. Of the subject 2 and a pseudo shutter sound signal from the shutter sound generator 48.

As described above, the pseudo shutter sound generating circuit 47
Since the shutter sound can be recorded more clearly and at a stable level by providing the shutter sound detector 3,
The shutter sound at 7 can be detected reliably and accurately.
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, but the present invention is not limited to this, and the present invention can be applied to a stationary video tape recorder or the like.

[0037]

As described above, according to claim 1 of the present invention, when a specific signal is detected in the audio signal during reproduction, the image becomes a still image. Therefore, the specific signal is preliminarily set at a position suitable for the atmosphere of the image. By recording the image, it is possible to make the image a still image at a place suitable for the atmosphere of the image at the time of reproduction, and it is possible to effectively reproduce the image in accordance with the atmosphere of the recorded image.

According to the second aspect, when a still image of the subject is taken by the still camera means while recording the image and sound of the subject by the recording means, a specific signal such as a shutter release sound is output as an audio signal. Since it is possible to superimpose and record on a video signal recorded by the recording means together with a specific signal such as a release sound at the place where the still camera means has taken a picture, by detecting the specific signal during reproduction, a still image can be output. The recording means is capable of performing effective reproduction in accordance with the atmosphere of recorded video and audio.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a first embodiment of the present invention.

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

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

[Explanation of symbols]

 1 Still Camera Integrated Video Camera 2 Subject 3 Magnetic Tape 4 Video Camera Section 5 Film 6 Still Camera Section 10 Playback Processing Section 12 Video Camera Control Section 34 LPF 35 Audio Signal Playback Processing Section 36 Audio Signal Output Circuit 37 Shutter Sound Detection Section 39 Shutter button 44 Shutter

Claims (2)

[Claims] 1. A video reproducing apparatus having a 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 superposed and recorded, wherein the audio signal reproduced by the reproducing means. Detecting means for detecting a specific signal set in advance, and reproduction control means for controlling the reproducing means so that the image by the video signal becomes a still image when the specific signal is detected by the detecting means. An image reproducing apparatus having: 2. A recording 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 superposed and recorded on the recording medium. In a video recording / reproducing apparatus, a still camera unit for capturing a still image of the subject on another recording medium, and a video signal and an audio signal of the subject being superposed by the recording unit and recorded on the recording medium. When a still image of the subject is taken by the still camera means, a specific signal superimposing means for superimposing a preset specific signal on the audio signal and supplying it to the recording means, and the sound reproduced by the reproducing means. A specific signal detecting means for detecting the specific signal superimposed by the specific signal superimposing means from a signal; and the specific signal detecting means for detecting the specific signal. Video recording / reproducing apparatus characterized by having a reproduction control device for controlling the reproducing means so image is a still image according to the video signal when the.