JPH0622259A - Recorder - Google Patents

Abstract

PURPOSE:To record a signal attached to picture information without decreasing the number of picked up recording sheets by adopting a digital attached signal to the picture signal and digitally recording the signal subjected to further signal processing onto the rear of a video floppy disk driven at a low speed. CONSTITUTION:The recorder is provided with an SV recording signal processing circuit 103 using a head 104 to record a picture signal obtained from an image pickup element 102 onto one side of a video floppy disk 112 concentrically around its turning center and a head 108 making recording onto a rear opposite to the recording surface of the picture signal, and also a digital processing circuit 106 digitally processing an attached signal (a voice signal or the like) attached to the picture signal, an audio digital processing circuit 107 applying prescribed signal processing to digital data from the circuit 106 and driving the head 108, and a revolution control circuit 110 rotating a motor 109 at a low speed driving the video floppy disk 112 when the attached signal is recorded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device for recording an image signal and its associated signal on a floppy disk.

[0002]

2. Description of the Related Art As a means for recording an image, there is a still video (hereinafter referred to as SV) system for electrically recording an image on a recording medium such as a magnetic floppy disk. This is the current TV system (NTS) by FM modulation on a 2 inch diameter video floppy disk.
C, PAL, etc.) is used to record / reproduce images. This SV system has 50 tracks and can record 25 frames. This type of device can instantly reproduce an image on a TV screen simply by connecting a TV monitor without the need for chemical treatment such as development and printing, which is required for silver halide photography.

[0003]

However, the above-mentioned conventional SV system uses one or two floppy disk tracks when an auxiliary signal such as voice or data is recorded at the same time as an image. There is a drawback in that the number of images taken is reduced. The same applies when it is desired to record an auxiliary signal of an image for compensating for deterioration of resolution.

Therefore, the use of a guard band can be considered, but it is not realistic due to the difficulty of manufacturing an azimuth head. It is also possible to use the back surface, but there is a drawback that there are many dropouts on the back surface, and it is difficult to make the head touch on the back surface good, so the method of combining positive pressure pad and negative pressure pad is used. Should be used and trying to hold the same head touch as the surface,
High precision is required for the entire disk drive, which causes a significant cost increase.

An object of the present invention is to provide a recording apparatus capable of recording a signal associated with image information without reducing the number of photographed recordings.

[0006]

In order to achieve the above object, the present invention provides an image in which an image signal is recorded on one side of a video floppy disk concentrically with respect to its rotation center by using a first head. Recording means, a second head for recording on the back side of the recording surface of the image signal, a signal converting means for digitizing an accompanying signal accompanying the image signal, and a predetermined signal for the digital data by the means. An accompanying signal recording means for performing the processing to drive the second head and a rotation control means for rotating the motor for driving the video floppy disk at a low speed at the time of recording the accompanying signal by the means are provided.

[0007]

According to the above means, the audio information associated with the image signal, the additional signal for improving the image quality, the associated signal such as data are digitized, and the associated signal subjected to the signal processing is rotated at low speed. Digitally record on the back side of a floppy disk that is not used for image recording. This makes it possible to record the accompanying signal without reducing the number of captured images.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a recording apparatus according to the present invention, and FIG. 2 is a block diagram showing the structure of a reproducing apparatus used in the recording apparatus of FIG.

As shown in FIG. 1, an image pickup device 102 (CCD) for converting a light image into electrical image information is provided at the rear stage of a lens 101 which is a constituent member of a camera. The image sensor 102 includes an SV recording signal processing circuit 103.
And the head 104 is connected to the SV recording signal processing circuit 103. On the other hand, an accompanying signal (auxiliary signal)
Is connected to a microphone 105 for converting a voice into an electric signal, and a digitizing circuit 106 for converting an analog output of the voice into a digital signal is connected to the microphone 105. The digital processing circuit 107 is connected, and its output is applied to the head 108. The recording system is formed as described above.

The heads 104 and 108 are arranged so that both sides of the video floppy disk 112 face each other, and a motor 109 is provided as a drive source thereof. Motor 109
Is driven by a rotation control circuit 110, and the control of the rotation control circuit 110 is performed by a system controller (hereinafter referred to as syscon) 111.

Next, the structure of the reproducing apparatus shown in FIG. 2 will be described.

Here, the head 104 and the head 108 used for recording are also used during reproduction. An SV reproduction signal processing circuit 113 is connected to the head 104, and the head 10
An audio reproduction signal processing circuit 114 is connected to the circuit 8 to constitute a reproduction system. The connection between the reproduction system and the recording system for each head is switched, but the switch circuit is not shown in FIG. SV reproduction signal processing circuit 11
The output of 3 becomes an image output, and the audio reproduction signal processing circuit 11
The output of 4 is a voice output.

In the above structure, the subject image is formed on the image pickup device 102 through the lens 101 and is converted into an electric signal by the image pickup device 102. This electrical signal is
Processing according to the format is performed by the SV recording signal processing circuit 103, and the output is recorded on the video floppy disk 112 by the head 104. At the time of image recording by the head 104, the video floppy disk 112 is driven by the syscon 111 and the rotation control circuit 110 so as to rotate at a standard speed (3600 rpm) for image recording.

The audio information related to the recorded image is simultaneously recorded by post-recording immediately before or after the recording.
The voice is converted into an electric signal by the microphone 105, further digitized by the digitizing circuit 106, and then processed by the audio digital processing circuit 107 such as shuffling (sorting) and error correction, resulting in a bad video. Even if data is recorded on the back surface of the floppy disk 112, there is no problem. The output of the audio digital processing circuit 107 is applied to the head 108, and recording is performed on the back surface of the video floppy disk 112.

Since the video floppy disk 112 needs to record audio, its rotation speed becomes a low speed for audio recording. For this reason, the system controller 111, which controls the motor 109, issues a command to the rotation control circuit 110 to make the rotation speed lower than that at the time of image recording, and based on this command, the rotation control circuit 110 causes the motor 1 to operate.
09 is driven to rotate.

Next, the reproducing operation will be described. The image signal recorded on the surface of the video floppy disk 112 is picked up by the head 104 from the video floppy disk 112 that rotates at a regular rotation speed (3600 rpm), further taken into the SV reproduction signal processing circuit 113, and reproduces the SV signal. Is done. When the reproduction of the SV signal is completed, the syscon 111 issues a command to decrease the rotation speed of the motor 109, decreases the rotation speed for reproducing the sound, picks up the sound signal from the head 108, and processes the sound reproduction signal processing. It is sent to the circuit 114. The audio reproduction signal processing circuit 114 reproduces the audio signal and outputs it as an audio output.

In the above embodiment, voice is taken as an example of the auxiliary signal, but an auxiliary signal for improving data resolution, quality, etc. can be handled in the same manner.

[0019]

As described above, according to the present invention, an image recording means for recording an image signal concentrically with respect to the center of rotation on one side of a video floppy disk by using a first head, and the image signal. Second head for recording on the back surface with respect to the recording surface, signal conversion means for digitizing the accompanying signal accompanying the image signal, and predetermined signal processing for the digital data by the means The auxiliary signal recording means for driving the head and the rotation control means for rotating the motor for driving the video floppy disk at a low speed at the time of recording the auxiliary signal by the means are provided. It becomes possible to record the signal. .

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a still image recording / reproducing apparatus according to the present invention.

2 is a block diagram showing a configuration of a reproducing apparatus used in the recording apparatus of FIG.

[Explanation of symbols]

 101 lens 102 image sensor 103 SV recording signal processing circuit 104, 108 head 105 microphone 106 digitizing circuit 107 audio digital processing circuit 109 motor 110 rotation control circuit 111 syscon 112 video floppy disk 113 SV reproduction signal processing circuit 114 audio reproduction signal processing circuit

Claims (1)

[Claims] 1. An image recording means for recording an image signal concentrically with respect to the center of rotation on one side of a video floppy disk by using a first head, and recording on the back side of the recording surface of the image signal. A second head, a signal converting means for digitizing an accompanying signal accompanying the image signal, and an accompanying signal recording means for driving the second head by subjecting the digital data by the means to predetermined signal processing. And a rotation control means for rotating a motor for driving the video floppy disk at a low speed when recording the accompanying signal by the means.