KR100210717B1 - Device for voice recording - Google Patents

Abstract

A voice recording apparatus in which a time-compressed audio signal is recorded together with a still video signal.

The post-recording switch is installed to perform recording setting during post-recording recording. When the post-recording recording switch is pressed during recording, the recording stops, the audio track is erased, and the post-recording recording function is enabled. Recording device.

Description

Voice recorder

1 is a perspective view of an example of a camera body to which the present invention is applied.

2 is a perspective view of one example of a magnetic disk cassette in one embodiment of the present invention.

3 is a perspective view of one example of a regeneration adapter.

4 is a block diagram showing a configuration of an example of a camera body to which the present invention is applied.

5 is a block diagram showing a configuration of a playback adapter.

6 is a flow chart used for describing one embodiment of the present invention.

7A and 7B are schematic diagrams used for describing one embodiment of the present invention.

8 and 9 are flowcharts used to describe one embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: camera body 3: built-in microphone

12: post-recording recording switch 21: playback adapter

41: magnetic disk 48: system controller

49: shooting element

[Industrial use]

The present invention relates, for example, to a disc recording apparatus in which an audio signal can be recorded with a still video signal on a magnetic disc, and more particularly, to the setting of after-recording.

[Overview of invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc recording apparatus for recording a time-compressed audio signal together with a still video signal, and to improve operability during recording by enabling post-recording recording during recording.

[Prior art]

BACKGROUND ART An electronic still camera having a camera body and a playback adapter separately configured is known. In such an electronic still camera, a magnetic disk is mounted on the camera main body side, and the still picture video signal photographed by the photographing element of the camera main body is recorded on this magnetic disk. During playback, the camera body and playback adapter are connected, and a still video signal recorded on the playback adapter magnetic disk is played back.

In the field of such electronic still cameras, development of electronic still cameras capable of recording not only still images but also audio signals related to shooting is being promoted.

In addition, recording of an audio signal in an electronic still camera is performed for a predetermined time (for 5 seconds, 10 seconds, or 20 seconds), for example, as disclosed in Japanese Patent Laid-Open Nos. 62-9972 and 62-95079. The audio signal is recorded by audio, time-compressed by one field, and recorded on one track.

In the electronic still camera in which the audio signal is recorded as described above, post-recording recording is performed whenever the still picture is taken by the camera body alone or after viewing the playback screen.

[Problem to Solve Invention]

In the electronic still camera that records the audio signal as described above, since the recording time is determined, for example, for 10 seconds, it is necessary to complete the recording at this predetermined recording time. It is not always easy to make a perfect recording in a predetermined time like this, and thus recording may fail. When recording fails, it is convenient to be able to mute the failed audio input with a simple operation and to edit the recording again.

Accordingly, another object of the present invention is to provide a disk recording apparatus in which post-editing recording is performed by a simple operation.

[Means for solving the problem]

The present invention relates to a disc recording apparatus in which a time compressed audio signal is recorded together with a still video signal. That is, a post recording recording switch is provided to perform recording setting during post editing recording, and when the post recording recording button is pressed during recording, the disc recording device stops recording, erases the audio track, and enables post editing recording.

[Action]

Recording may fail while recording. In this case, the post edit recording switch 12 is pressed during the recording period. After the edit recording switch is pressed, the recording track of the audio signal is erased and re-editing recording is possible.

EXAMPLE

[a. Outline of appearance of electronic still camera body]

In the still picture camera to which the present invention is applied, it is possible to record an audio signal related to the still picture photographed together with the still picture.

1 shows the camera body 1 to which the present invention is applied as a whole.

In FIG. 1, the front side surface 1A of the camera main body 1 is provided with the imaging lens, the strobe light window, etc. not shown.

On the rear side 1B of the camera body 1, a viewfinder 2, a built-in microphone 3, and an external microphone jack 4 are provided. On the rear side 1B of the camera body 1, a connector 5 for connecting a playback adapter is provided.

The disk insertion port 6 is provided in the rear center of the camera main body 1. As shown in FIG. The magnetic disk cassette 7 (FIG. 2) is inserted into this disk insertion port 6. As shown in FIG. In the magnetic disk 41 provided in the magnetic disk cassette 7, a still picture and an audio signal associated with it are recorded. The magnetic disk cassette 7 can be pulled out by the eject switch 8.

The cover 9 which covers the upper surface 1C of the camera main body 1 is provided. A battery mounting recess is formed at a position corresponding to the cover 9, and a charging pack or a battery is provided in the battery mounting recess.

The liquid crystal display 10 is provided in the vicinity of the disk insertion opening 6. Various operation setting states are displayed on this liquid crystal display 10. For example, when performing post-editing recording, the remaining seconds of recording are displayed. When the recording is stopped and the audio is muted, the indication E is displayed. A warning is given to the liquid crystal display 10 indicating that the remaining track number has decreased.

The camera body 1 is provided with various switches. These switches will be described.

음없음,

후 편집 녹음

,

동시녹음

의 3가지 음성 녹음에 관한 모드를 설정할 수 있다.Denoted at 11 is a recording switch. The switch 11 in this recording mode is a slide switch in three positions. By the switch 11 in this recording mode

No sound ,

After editing recording

,

Simultaneous recording

You can set the mode for three voice recordings.

동시녹음

위치로 설정해 두면, 정지화 촬영을 종료한 시점에서, 예를들면 9.6초간 오디오 입력이 가능한 상태로되며, 이 사이에 입력된 오디오 신호가 촬영한 정지화와 관련하여 기록된다. 또한 음없음의 위치에서는 정지화 촬영만이 행하여진다.When the camera body 1 is used as a single unit, if the recording mode switching switch 11 is set to the position of post-editing recording, a still picture taken by operating the post-recording recording switch 12 will be described later. It is possible to post-edit and record the audio signal related to. The post-editing recording time is, for example, 9.6 seconds. The recording mode selector switch (11)

Simultaneous recording

When set to the position, the audio input is possible for 9.6 seconds, for example, at the end of the still picture shooting, and the audio signal input therebetween is recorded in relation to the still picture picked up. In addition, only still image photographing is performed in a position without sound.

후 편집 녹음

의 위치 또는

동시녹음

의 위치로 설정했을때만, 재생 화면을 보면서 이와 관련된 오디오 신호를 후 편집 녹음할 수 있다.When the playback adapter 21 (FIG. 3) of the camera body 1 was connected and used, the recording mode switch 11

After editing recording

Location of or

Simultaneous recording

Only when set to the position, can you edit and record the audio signal related to this while watching the playback screen.

후 편집 녹음

의 위치로 설정했을 때의 동작과

동시녹음

의 위치로 설정했을 때의 동작은 같다.When the camera body 1 and the playback adapter 21 are connected and used, the recording mode switching switch 11 is used.

After editing recording

The behavior when set to the

Simultaneous recording

The operation is the same when set to the position of.

12 is a post edit recording switch. Thereafter, when the edit recording switch 12 is operated to perform audio input to the built-in microphone 3 or the external microphone provided in the external microphone jack 4, recording of the audio signal is performed. Then, in order to prevent erroneous operation by the editing recording switch 12, the projection part 12A is pushed and slides, and it becomes a post-editing recording state. Since such a switch does not move unless it is pressed, the operation sound of the switch does not mix.

13 operates as an audio repeat switch during playback. At the time of writing, it is a push switch functioning as a setting switch in a half release state. In other words, when the push switch 13 is pressed at the time of reproduction, the audio signal is reproduced repeatedly. When the push switch 13 is pressed at the time of recording, power is supplied to the photographing section or the recording section to start the rotation of the disk, and is set to the photographing standby state.

잠김(lock)

,

일회 촬영

,

연속 촬영

,

고속연속 촬영

의 4개의 모드가 설정가능하다. 일회 촬영 모드에서는 릴리스 버튼(18)을 누를때 마다 1장의 화상이 촬영된다. 연속 촬영 모드에서는 릴리스 버튼(18)을 누르고 있는 동안 연속 촬영이 이루어진다. 단, 기록 모드 절환 스위치(11)가

동시녹음

의 위치로 한정되어 있을 때에는 모드 스위치(14)를

연속 촬영

의 위치로 설정하고 있어도 연속 촬영으로 된다.14 is a mode switch. This mode switch 14 is a rotary switch of four positions, and by this mode switch 14

Lock

,

One shot

,

Continuous shooting

,

High speed continuous shooting

Four modes of can be set. In the single shooting mode, one image is taken each time the release button 18 is pressed. In the continuous shooting mode, continuous shooting is performed while pressing the release button 18. However, the recording mode switching switch 11

Simultaneous recording

When limited to the position of the mode switch 14

Continuous shooting

Continuous shooting is taken even if the position is set to.

15 is a self-timer switch. When the release button 18 is pressed while the self-timer switch 15 is pressed, timer photographing is performed.

Numeral 16 is a buzzer on / off switch. If the buzzer is set to the on state, various warnings, for example, the start point of recording or the end point of recording at the time of post-editing recording can be known by the buzzer sound.

Reference numeral 17 denotes a setting switch of the blank search mode. When the blank search mode is set, the next photographed signal can be recorded as an empty track of the magnetic disk 41.

18 is a release button. The release button 18 is pressed in two steps.

When the release button 18 is lightly pressed, power is supplied to the photographing unit or the recording unit to start the rotation of the disk, and is set to a shooting ready state. When all of the release buttons 18 are pressed, the still images picked up by the image pickup element are recorded. This release button 18 functions as a switch for frame feed during playback.

The camera body 1 alone can record still images and audio signals associated therewith. When reproducing, it is necessary to connect the reproducing adapter 21 to the camera main body 1.

[b. Outline of the playback adapter appearance]

3 shows the playback adapter 21 as a whole. The playback adapter 21 is used in connection with the camera main body 1 when playing back still images captured by the camera main body 1.

In FIG. 3, an installation recess 22 for installing a charge pack 23 or a battery is formed on the top surface 21A of the regeneration adapter 21. As shown in FIG. A cover 24 is mounted on the top of the adapter 21 to cover this mounting recess 22.

The connection cable 25 is derived from the side surface 21B of the reproduction adapter 21, and the connector 26 is provided in the front of the connection table 25. As shown in FIG. When reproducing still-pictures captured by the camera main body 1 using the reproduction adapter 21, this connector 26 is connected to the connector 5 of the camera main body 1.

The output terminal 27 is provided in the side surface 21C of the reproduction adapter 21. This output terminal 27 and the input terminal of a monitor receiver are connected. In addition, a DC input terminal 28 is provided on the side surface 21C of the reproduction adapter 21. The plug 30 of the AC adapter 29 is connected to the DC input terminal 28.

Numeral 31 denotes a playback button for reproducing stills one frame at a time. Reference numeral 32 denotes a continuous play button for continuously reproducing a still image, for example, every 5 seconds, 33 denotes a stop button, 34 denotes a reverse button, 35 denotes a forward button, and 36 Is an erase button for erasing stills in units of one frame, and 37 is an autoerase button for erasing all signals on the magnetic disk. The cover 24 of the reproduction adapter 21 is normally closed, and the charging pack 23 and the operation buttons 31 to 37 are not exposed to the outside.

[c. Configuration of the Camera Body]

4 shows the configuration of the camera body 1.

In FIG. 4, 41 is a magnetic disk. This magnetic disk 41 is provided in the magnetic disk cassette 7 as shown in FIG. The magnetic disk 41 is rotated by a spindle motor 42. The rotation of the spindle motor 42 is controlled by the spindle servo circuit 43 under the control of the system controller 48.

Reference numeral 44 denotes a magnetic head, and the magnetic head 44 records / reproduces the magnetic disk 41. The magnetic head 44 is position controlled by the tracking servo circuit 45 under the control of the system controller 48.

A key switch 47 is connected to the system controller 48. The key switch 47 is composed of various switches on the camera body 1.

The liquid crystal display 10 is connected to the system controller 48. Various setting states are displayed on this liquid crystal display 10. The buzzer 46 is connected to the system controller 48. If necessary, this buzzer 46 will ring.

By operation of the key switch 47, recording of stills and recording of an audio signal are performed.

The switch circuit 61, the switch circuit 63, and the switch circuit 64 are switched between recording video signals and recording audio signals. In the video signal recording, the switch circuit 61, the switch circuit 63, and the switch circuit 64 are each switched to the a side. When recording audio signals, the switch circuit 61, the switch circuit 63, and the switch circuit 64 are each switched to the b side.

The switch circuit 66 is switched at the time of recording and the time of reproduction. At the time of video signal recording or audio signal recording, the switch circuit 66 is switched to the a side.

First, a case of recording a still video signal will be described. In this case, the switch circuit 61 and the switch circuit 63 are each switched to the a side, and the switch circuit 66 is switched to the a side. In FIG. 4, the subject image which passed through the lens 50 and the iris ring 51 appears in imaging elements 49, such as CCD and MOS. The output of the imaging element 49 is supplied to the line sequential processing circuit 54 via the amplifier 52 and the process circuit 53.

The iris ring 51 is opened and closed by the output of the iris driving circuit 55. The iris control circuit 55 is controlled by a command to the command of the system controller 48. By such control, iris control is performed. The imaging element 49 is driven by the output of the drive circuit 56. The drive circuit 56 is controlled by the command of the system controller 48.

The line sequencing circuit 54 forms a wminunce signal Y and a line sequence color difference signal RY and BY in a component color video signal. . The circuit captured by the photographing element 49 and passed through the amplifier 52 and the process circuit 53 is converted from the linearization circuit 54 to the luminance signal Y and the linearization color difference signals RY and BY. Is converted.

The pre-sequence chrominance signals R-Y and B-Y are supplied from the pre-sequence circuit 54 to the FM modulation circuit 58 via a pre-emphasis circuit 57. In the FM modulation circuit 58, the linearized color difference signals R-Y and B-Y are FM modulated. The output of the FM modulation circuit 58 is supplied to one input terminal of the addition circuit 59.

The luminance signal Y in the serialization circuit 54 is supplied to the FM modulation circuit 62 via the preemphasis circuit 60 and the switch circuit 61. In the FM modulation circuit 62, the luminance signal Y is FM modulated. The output of the FM modulation circuit 62 is supplied to the other input terminal of the addition circuit 59 via the switch circuit 63.

In the addition circuit 59, the FM modulated line sequential chrominance signals RY and BY output from the FM modulation circuit 58, and the FM modulated luminance signal Y output from the FM modulation circuit 62. Is frequency division multiplexed.

The output of the addition circuit 59 is supplied to the magnetic head 44 via the switch circuit 64, the write amplifier 65, and the switch circuit 66. The video signal is recorded on the track of the magnetic disk 41 by the magnetic head 44.

Reference numeral 69 denotes a strobe discharge tube. The discharge circuit 70 is connected to the strobe discharge tube 69. This strobe discharge tube 69 is used when photographing using a strobe. The control of the strobe discharge tube 69 is performed by a control signal from the system controller 48.

Reference numeral 71 denotes a side ligth detection diode. The current flowing in the diode 71 is detected in the detection circuit 72, and this detection output is supplied to the system controller 48.

Next, a case of recording an audio signal will be described.

When recording the audio signal, the switch circuit 61, the switch circuit 63, and the switch circuit 64 are switched to the b side.

Audio input can be made from the built-in microphone 3 and is also performed from the external microphone 3 connected to the external microphone jack 4. When the built-in microphone 3 is used, the switch 81 is switched to the a side. When the external microphone 83 is used, the switch 81 is switched to the b side. The switching state of this switch 81 is detected by the switch detecting means 82, and this detection signal is supplied to the system controller 48. As shown in FIG.

The audio signal from the external microphone 83 connected to the built-in microphone 3 or the external microphone jack 4 is supplied to the amplifier 84 via the switch 81. The output of the amplifier 84 is band-limited via the high pass filter 85, the low pass filter 86, and passes through a compressor 87 for noise removal. And in the A / D converter 88, it is digitalized.

The A / D converter 88 is supplied with a sampling clock of frequency fs from the input clock generation circuit 89. The clock in the write clock generation circuit 89 is supplied to the address counter 91.

The address counter 91 is controlled by the output of the system controller 48. At the time of writing, the address in the address counter 91 advances by the clock of the frequency fs in the write clock generation circuit 89.

The audio signal digitalized in the A / D converter 88 is recorded in the RAM 90 in accordance with the write address in the address counter 91. Is entered.

At the time of reading, the address in the address counter 91 is read out and advances by the clock of the frequency 640fs output from the clock generation circuit 92. The audio signal stored in the RAM 90 is read in accordance with the read address output from the address counter 91.

The output of the RAM 90 is returned to the analog signal at the D / A converter 93. The D / A converter 93 is supplied with a clock of frequency 64 fs from the read clock generation circuit 92.

In this manner, the input audio signal is digitalized with a sampling clock of frequency fs and recorded in the RAM 90, and the digital audio signal accumulated in the RAM 90 is read out at a clock of frequency 640fs. As a result, the audio signal is time-base compressed at 1/640.

The output of the D / A converter 93 is supplied to the addition circuit 94. In the addition circuit 94, a flag, a flag indicating the connection information, and a control code are generated at a predetermined timing in the control code generation circuit 95. This flag and control code are added to a predetermined position of the time base compressed audio signal.

The output of the addition circuit 94 is supplied to the FM modulation circuit 62 via the pre-emphasis circuit 96 and the switch circuit 61. The output of the FM modulation circuit 62 is supplied to the magnetic head 44 via the switch circuit 63, the switch circuit 64, the recording amplifier 65, and the switch circuit 66. The audio signal compressed on this time axis by the magnetic head 44 is recorded on the magnetic disk 41.

The system controller 48 of the camera body 1 and the system controller 101 (FIG. 5) of the playback adapter 21 are bidirectionally connected via the interface 97 and the interface 102.

The output terminal 68 is connected to the input terminal 111 of the reproduction adapter 21.

Next, a description will be given at the time of reproduction, and at the time of reproduction, the switch circuit 66 is switched to the b side. The reproduction signal of the magnetic head 44 is output from the output terminal 68 via the switch circuit 66 and the amplifier 67.

The output of the amplifier 67 is supplied to the signal detection circuit 98. Although the reproduction operation cannot be performed by the camera main body 1 alone, it can be detected from the output of the signal detection circuit 98 whether a signal is recorded in the track of the magnetic disk 41. The detection signal of this signal detection circuit 98 is supplied to the system controller 48.

[d. Configuration of Replay Adapter]

5 shows the configuration of the playback adapter 21. As shown in FIG. In FIG. 5, the input terminal 111 is connected to the output terminal 68 of the camera body 1. The system controller 101 is bidirectionally connected to the system controller 48 of the camera body 1 via the interface 102 and the interface 97. The system controller 101 is connected with a key switch 103 composed of various operation switches provided in the reproduction adapter 21.

The output from the output terminal 68 of the camera body 1 is input from the input terminal 111 of the playback adapter 21.

In the switch circuit 113, the switch circuit 120, and the switch circuit 122, the switch circuit 113, the switch circuit 120, and the switch circuit 122 are switched to the a side at the time of video signal reproduction and audio signal reproduction, respectively. When the audio signal is reproduced, the switch circuit 113, the switch circuit 120, and the switch circuit 122 are switched to the b side, respectively.

First, a description will be given from the video signal reproduction. When the video signal is reproduced, the switch circuit 113, the switch circuit 120, and the switch circuit 122 are switched to the a side. The video signal reproduced from the magnetic disk 41 of the camera body 1 is supplied to the input terminal 111. This video signal is a signal obtained by frequency division multiplexing the FM modulated luminance signal Y and the FM modulated linearized chrominance signal R-Y and B-Y.

The video signal at the input terminal 111 is supplied to the band pass filter 114 and the band pass filter 119 via the amplifier 112 and the switch circuit 113.

The band pass filter 114 obtains FM modulated line sequential color difference signals R-Y and B-Y. The output of this band pass filter 114 is supplied to the FM demodulation circuit 116.

In the FM demodulation circuit 116, the serialized color difference signals R-Y and B-Y are demodulated. The output of the FM demodulation circuit 116 is supplied to the video signal processing circuit 118 via the deemphasis circuit 117.

The luminance signal Y modulated by the band pass filter 119 is obtained. The output of the band pass filter 119 is supplied to the FM demodulation circuit 121 via the switch circuit 120.

The luminance signal Y is demodulated in the FM demodulation circuit 121. The output of the FM demodulation circuit 121 is supplied to the video signal processing circuit 118 via the switch circuit 122 and the demphasis circuit 123.

The video signal processing circuit 118 synchronizes the linear sequential color difference signals R-Y and (B-Y) and forms component signals (Y), (R-Y), and (B-Y).

The output of the video signal processing circuit 118 is supplied to an NTSC encoder 124. In the NTSC encoder 124, component color video signals of the NTSC system are formed in the component signals (Y) and (R-Y), (B-Y). The component color video signal of the NTSC system is output from the output terminal 125.

Next, the audio signal reproduction will be described. When the audio signal is reproduced, the switch circuit 113, the switch circuit 120, and the switch circuit 122 are switched to the b side, respectively.

To the input terminal 111, a time-base compressed and FM-modulated reproduction audio signal is supplied. The reproduction audio signal is supplied to the FM demodulation circuit 121 via the amplifier 112, the switch circuit 113, and the switch circuit 120. In the FM demodulation circuit 121, the audio signal at the input terminal 111 is demodulated.

The output of the FM demodulation circuit 121 is supplied to the de-emphasis circuit 131 via the switch circuit 122. The output of the de-emphasis circuit 131 is supplied to the A / D converter 134 via the low pass filter 132, and the flag and the control code are detected by the flag and the control code detection circuit 133. This detection output is supplied to the system controller 101.

The A / D converter 134 is supplied with a clock of frequency 640fs from the write clock generation circuit 135. In the A / D converter 134, a time-base compressed audio signal is sampled at a clock of frequency 640fs.

In addition, a clock of frequency 640fs from the write clock generation circuit 135 is supplied to the address counter 137. At the time of writing, the address output from the address counter 137 advances to the clock of this frequency 640fs. This write address is supplied to the RAM 136.

The output of the A / D converter 134 is supplied to the RAM 136, and an audio signal is recorded from the A / D converter 134 in the RAM 136.

At the time of reading, the clock of the frequency fs from the read clock generation circuit 138 is supplied to the address counter 137, and the address output from the address counter 137 is the clock of this frequency fs. The audio signal stored in the RAM 136 is read out from the address 137.

The output of the RAM 136 is supplied to the D / A converter 139. The clock of frequency fs is supplied from the read clock generation circuit 138 to the D / A converter 139. The output of the RAM 136 is returned to the analog signal at the D / A converter 139.

In this manner, the time axis is restored to its original state by recording the time-base compressed reproduction audio signal to the RAM 136 at a clock of frequency 640 fs and reading the clock at a frequency fs.

The output of the D / A converter 139 is obtained at the output terminal 142 via a low pass filter 140 and an expander 141.

In the case of reproducing an audio signal using this reproduction adapter 21, information on which track is recorded on which track is required. In the index table 143, information such as which track is recorded on which track is recorded. In order to create such an index table, a flag, a control code detection circuit 133 and a vertical synchronization detection circuit 144 are provided.

[e. Process description in post-editing recording mode in the camera body alone]

후 편집 녹음

로 설정하고, 카메라 본체(1) 단체에서 후 편집 녹음 처리를 행하는 경우의 처리에 대하여 제6도의 흐름도를 참조하면서 설명한다.The recording mode switching switch 11 of the camera body 1

After editing recording

The processing in the case where post-editing recording processing is performed by the camera main body 1 alone will be described with reference to the flowchart of FIG.

In the case where the mode switch 14 is set to the one-time shooting mode, the still picture is taken one by one each time the release button 18 is pressed. This still video signal is recorded in an annular track of the magnetic disk 41. When the recording mode switching switch 11 is set to post-editing recording, an audio empty track is prepared on the outer peripheral side of the recording track of the video signal. When the history of the recording state of the magnetic disk 41 is stored, this audio blank track can be post-edited and recorded the audio signal related to the still image captured.

The post recording time is 9.6 seconds.

In the case where the continuous shooting mode is set, still pictures are continuously taken while the release button 18 is continuously pressed. This still video signal is recorded in an annular track of the magnetic disk 41. When the recording mode switching switch 11 is set to post-editing recording, one track of the outer periphery of the video camera first recorded at the time of continuous shooting is prepared as an empty track for audio. This audio blank track can be post-edited for recording audio signals related to stills first shot during continuous shooting. The post recording time is 9.6 seconds.

That is, in FIG. 6, it is determined whether the release button 18 has been pressed in step 151. If the release button 18 is pressed, it is determined whether or not it is in the one-time shooting mode (step 152). In the one-time shooting mode, one track is left blank on the outer circumferential side and the video signal is recorded on the track of the magnetic disk 41 (step 153).

When the release button 18 is pressed, in the continuous shooting mode, the first track of the outer periphery is first empty (step 154), the video signal is recorded on the next track (step 155), and the release button 18 is pressed. If it is determined (step 156), and the release button 18 is compressed, the process returns to step 155, and the next still video signal is continuously recorded on the next track.

As shown in Fig. 7A, in the case of the one-time shooting mode, the recording tracks V ₁₁ , V ₁₂ ,... On the outer circumference of the tracks A ₁₁ , A ₁₂ . These are each installed.

In the continuous shooting mode, as shown in Fig. 7B, an empty blank track A ₂₁ is provided on the outer circumference side, and the recording tracks V ₂₁ , V ₂₂ , V ₂₃ ... This is installed.

In FIG. 6, it is determined whether the post-editing recording switch 12 is pressed (step 157), and if the post-editing recording switch 12 is pressed, a buzzer sounds for 0.4 seconds, and the start of recording is known (step 158). The edit recording switch 12 then depresses and waits 0.4 seconds (step 159), and the recording time Tn is initially set to 0 (step 160). Then, the post-recording recording switch 12 is depressed to start recording 0.4 seconds later (step 161).

It is determined whether the post-edit recording switch 12 is pressed during recording (step 162), and if the post-edit recording switch 12 is not pressed during recording, it is determined whether the release button 18 is half pressed during recording. (Step 163). If the release button 18 is not pressed halfway during recording, it is determined whether the recording time Tn has elapsed 9.6 seconds (step 164).

When the recording time Tn has elapsed 9.6 seconds, the buzzer sounds (step 165), and it is known that the recording time has ended. Then, it is determined whether it is a single shooting mode or a continuous shooting mode (step 166). In the one-time shooting mode, the recorded audio signal is recorded on the empty track provided on the outer periphery of the recording track of the still video signal (step 167). In the continuous shooting mode, the recorded audio signal is recorded on the empty track provided on the outer periphery of the recording track of the first still video signal during continuous shooting (step 168).

Sometimes recording fails during recording. In this case, the post-editing recording switch 12 is pressed during recording or the release button 18 is pressed halfway during recording.

In step 162 it is determined whether the post-editing recording switch 12 is pressed during recording. In step 163, it is determined whether the release button 18 has been pressed halfway. If the post-editing recording switch 12 is pressed during recording or if the release button 18 is pressed halfway during recording, the one-time shooting mode is determined (step 169).

In the one-time shooting mode, the signal of the outer track relative to the recording track of the still video signal is erased (step 170).

In the continuous shooting mode, during continuous shooting, the track signal of the outer periphery for the recording track of the first still video signal is erased (step 171).

During recording, shutter chances may arrive. In this case, all of the release buttons 18 are pressed. When all of the release buttons 18 are pressed, still picture shooting takes priority over recording.

In this way, photographing can be performed without avoiding a shutter chance.

That is, in step 172, it is determined whether the release buttons 18 are all pressed.

If the release buttons 18 are all pressed, one track of the outer circumference is emptied for audio, and a still video signal is recorded (step 173).

[f. Processing explanation in simultaneous recording mode in camera body unit]

동시 녹음

모드는 기록모드 절환 스위치(11)에 의해 설정된다.FIG. 8 shows a process in the case where the camera main body 1 is set to the simultaneous recording mode by a single body.

Simultaneous recording

The mode is set by the recording mode switching switch 11.

동시녹음

모드에서는 릴리스 스위치(18)를 눌러 1장씩 정지화가 촬영될 때마다, 이 정지화의 비디오 신호가 자기 디스크의 원환상의 트랙에 기록된다. 이 때, 비디오 신호의 기록 트랙의 외주측에는 공트랙이 설치된다. 이것과 함께, 정지화의 촬영이 수행될 때에, 오디오 신호가 입력가능한 상태로 설정된다. 그리고, 입력된 오디오 신호가 촬영한 정지화와 관련되어 기록된다. 오디오 신호의 입력시, 녹음시간은 9.6초이다.

Simultaneous recording

In the mode, each time a still picture is taken by pressing the release switch 18, the video signal of the still picture is recorded on an annular track of the magnetic disk. At this time, an empty track is provided on the outer circumferential side of the recording track of the video signal. Along with this, when the still picture shooting is performed, the audio signal is set to an inputable state. Then, the input audio signal is recorded in association with the captured still image. When the audio signal is input, the recording time is 9.6 seconds.

That is, in FIG. 8, it is determined whether the release button 18 has been pressed (step 201). When the release button 18 is pressed, one track of the outer circumference is emptied for audio, and a video signal is recorded (step 202).

Then, the buzzer rings for 0.4 seconds (step 203), and the rotation of the disc is stopped (step 204). Waiting 0.4 seconds (step 205), the recording time Tn is set to 0 (step 206).

In this way, the recording is started by waiting 0.4 seconds so that recording can be performed after the rotation of the disc is completely stopped. If the disk is rotating at the time of recording, noise generated by the disk rotation may be mixed.

If the recording time Tn is set to 0, recording is performed (step 207).

It is determined whether or not the post-recording recording switch 12 is pressed during recording (step 208). If the post-edit recording switch 12 is not pressed during recording, it is determined whether the release button 18 is pressed halfway (step 209).

If the post-editing recording switch 12 and release button 18 are not pressed during recording, it is determined whether the recording time Tn has reached 9.6 seconds (step 210).

If the recording time Tn reaches 9.6 seconds, a buzzer sounds for 0.4 seconds (step 211), and the disc is rotated (step 212). Then, the input audio signal is recorded on the empty track on the outer side of the recording track of the still video signal (step 213).

During recording, recording may fail. In this case, the post-editing recording switch 12 is pressed during recording, or the release button 18 is pressed halfway during recording.

In step 208 it is determined whether the post-editing recording switch 12 is pressed during recording. In step 209, it is determined whether the release button 18 has been pressed halfway.

If the post-edit recording switch 12 is pressed during recording or the release button 18 is pressed halfway during recording, the outer track signal of the recording track of the still video signal is erased (step 214).

The shutter chance may come during recording. In this case, all the release buttons 18 are pressed. When the release button 18 is fully pressed, still shooting is given priority over recording. That is, in step 215, if all of the release buttons 18 are pressed, one track of the outer circumference is emptied for audio, and a still video signal is recorded (step 216).

[g. Explanation of processing at the time of editing recording at the time of reproduction adapter connection]

9 shows a process in the case where the camera body 1 and the playback adapter 21 are connected to perform post-recording recording operations. After the camera body 1 and the playback adapter 21 are connected, the post edit recording switch 12 can be pressed to perform post edit recording.

When the camera body 1 and the playback adapter 21 are connected, the recording switch 11 is set to post-editing recording or simultaneous recording, and post-editing recording can be performed only for manual frame feed during playback. . When the external microphone 83 is connected to the external microphone jack 4 and recording is performed using the external microphone 83, it is possible to record while the screen is reproduced. When recording is performed by using the built-in microphone 3, the rotation of the disc is stopped at the time of recording, and the playback screen is muted. This is to prevent the rotating sound of the disc from being mixed into the noise when the built-in microphone 3 is used.

In FIG. 9, it is determined whether or not the post-editing recording switch 12 is pressed (step 301). At this time, it is determined whether or not the recording mode switching switch 11 is set to "post-editing recording" or "simultaneous recording" (step 302), and it is judged whether it is being reproduced (step 303), and it is determined whether it is manual frame feed. It is determined (step 304).

When the recording mode switching switch 11 is set to "post editing recording" or "simultaneous recording," and the post editing recording switch 12 is pressed while the manual frame feed is in play, a buzzer sounds for 0.4 seconds (step) 305), recording is started.

If there is a playback sound at this time (step 306), it is immediately muted (mute step 307), and it is determined whether the external microphone 83 is connected to the external microphone jack 4 (step 308).

When the external microphone 83 is connected to the external microphone jack 4, recording is performed by this external microphone 83.

That is, when the external microphone 83 is connected to the external microphone jack 4, 0.4 seconds is waited (step 309), and the recording time Tn is set to 0 (step 310). Then, recording is performed by the external microphone 83 connected to the external microphone jack 4 (step 311).

It is determined whether the post-edit recording switch 12 is pressed during recording (step 312). If the post-edit recording switch 12 is not pressed during recording, it is determined whether the recording time Tn has elapsed 9.6 seconds (step 313). ).

If the recording time Tn has elapsed for 9.6 seconds, the buzzer sounds for 0.4 seconds (step 314), and the image is muted (step 315).

Then, it is determined whether there is an audio track corresponding to the video. If there is an audio track corresponding to the video, the recorded audio signal is recorded in the track corresponding to the video (step 317). If the audio signal has been recorded, it returns to the original image and the still picture is reproduced (step 318).

If there is no audio track corresponding to the video, it is determined whether there is an empty track on the outer periphery of the recording track of the video signal (step 319). If there is an empty track on the outer periphery of the video track, the audio signal recorded on the empty track on the outer periphery of the video track is recorded (step 320). When the audio signal is recorded, the process proceeds to step 318 where the still picture is reproduced by returning to the original video.

If it is determined in step 319 that there is no empty track on the outer periphery of the video track, the audio signal flowing into the empty track is recorded on the inner periphery of the video track (step 321). If the audio signal has been recorded, the process proceeds to step 318 where the still picture is reproduced by returning to the original video.

When it is determined in step 308 that the external microphone 83 is connected, recording is performed without stopping the rotation of the disc. Therefore, it is possible to record while watching the playback screen.

In step 308, when it is determined that the external microphone 83 is not connected, the image is immediately muted (step 322), and the rotation of the disc is stopped (step 323).

Then, 0.4 seconds wait (step 324), the recording start time (Tn) is initially set (step 325). This 0.4 second corresponds to the time until the rotation of the disc is completely stopped.

The recording time Tn is initially set and recording starts (step 326).

It is determined whether the post-edit recording switch 12 is pressed during recording (step 327), and if the post-edit recording switch 12 is not pressed during recording, it is determined whether the recording time Tn has elapsed 9.6 seconds (step 328). .

If the recording time Tn has elapsed 9.6 seconds, a buzzer will sound for 0.4 seconds (step 329), the rotation of the disc will begin (step 330), and the flow proceeds to step 316.

In this way, when it is judged that the external microphone 83 is not connected in step 308, and recording is performed in the built-in microphone 3, the rotation of the disc is stopped in step 323 before recording, and the step after recording ends. At 330 the rotation of the disk is stopped.

As a result, it is possible to prevent the mixing of noise caused by the disk rotation sound during recording.

Sometimes recording fails during recording. In this case, the post-editing recording switch 12 is pressed during recording. If it is determined in step 312 or step 327 that the post-editing recording switch 12 is pressed during recording, it is determined whether there is an audio track corresponding to the video (step 331). If there is an audio track corresponding to the video, the audio signal recorded in this audio track is erased (step 332).

[Effects of the Invention]

According to the present invention, if the post-editing recording switch 12 is pressed during the recording period, the recording track of the audio signal is erased, and the post-editing recording can be performed again. For this reason, it can respond immediately when recording fails.

Claims (1)

An apparatus for recording a still video picture signal and an audio signal on a disc, the apparatus comprising: a post-recording recording switch means which can be manually operated manually after a still video picture signal is crossed to start recording of an audio signal on the disc; And control means for recording an audio signal on the disc in response to the post-editing recording operation, wherein the control means, if the post-editing recording switch means is operated again before the preceding audio recording operation is completed, A device for recording a still video picture signal and an audio signal on a disc, comprising means for restarting the audio recording operation.

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