JPH11234609A - Magnetic recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To outputs an image recorded next by one switch operation similar to moving image recording by selecting a switch function to a moving image or/and a still image identified by recorded image information even plural still images are recorded in a still image area. SOLUTION: In the case that an image reproduced at present is discriminated to be a still image, the operation of tape feed switches sw6, sw7 is detected. When the forward tape feed switch sw6 is closed or the reverse tape feed switch sw7 is closed, an SC flag is checked. In the case that a video image reproduced is a still image 5-frame fixed recording, an image after or before 5 frames is reproduced. In the case that the video image reproduced is not a still image 5-frame fixed recording, a tape is carried till an FC flag is set to a state '1' and the frame is reproduced, the switch function is switched and a succeeding/ preceding image is reproduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording / reproducing apparatus such as a video tape recorder (VTR) or a camera-integrated VTR (video camera) capable of recording a still image together with a moving image on a magnetic recording medium. .

[0002]

2. Description of the Related Art Conventionally, in a moving image recording area and a still image recording area, a reproduction mode in which the next frame is reproduced by a forward frame advance switch such as a built-in switch and an external remote controller when the reproduction is temporarily stopped, and a reverse frame advance switch. There is a reproduction mode for reproducing the immediately preceding frame, and a method of reproducing a recorded image in units of one frame (one frame).

[0003]

However, in the above-described conventional example, when a plurality of still images are recorded in the still image recording area and the same image is recorded over several frames, the next recording is performed. To output the image
Even if the forward exposure operation and the reverse exposure operation are performed, the same image is output, so there is a problem that the exposure operation must be performed several times.

The present invention has been made in view of the above points. Even when a plurality of still images are recorded in a still image area, the same switch operation as in the case of moving image recording is performed next. It is an object of the present invention to provide a magnetic recording / reproducing apparatus capable of outputting a recorded image.

[0005]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) A moving image or / and a still image or / and a sound are recorded on a magnetic tape,
When recording a still image, in a magnetic recording and reproducing apparatus that performs recording by adding information indicating other image information, a moving image or / and a still image identified by the recorded image information are A magnetic recording / reproducing apparatus, wherein a function of a switch is switched.

(2) In the magnetic recording / reproducing apparatus according to the above item (1), the switch for switching the function is a switch (Fwd Frame Sw) for moving in the feed direction or / and a switch (Rvs Frame Sw) for moving in the return direction. Characteristic magnetic recording / reproducing device.

(3) The magnetic recording / reproducing apparatus according to the above (1), wherein the switch for switching the function includes a switch (Fwd Frame Sw) for moving in a feed direction and a switch (RvsFrame Sw) for moving in a return direction. When a still image is discriminated from a still image by the image information added and recorded when recording an image and / or a still image, the function of a switch (Fwd Frame Sw) for advancing in the feed direction is a function of reproducing the next image based on the image information. And a switch (Rv
s Frame Sw) function to play back the previous image based on the image information. If the image information identifies the moving image, the function of the switch (Fwd Frame Sw) to advance in the feed direction is changed to the image of the next frame. A magnetic recording / reproducing apparatus characterized in that the function of reproducing the image of the immediately preceding frame is a function of reproducing the image of the immediately preceding frame.

(4) In the magnetic recording / reproducing apparatus according to (1), image information used for identifying a still image and / or switching between continuously recorded still images is stored in a start of a still image recording area. Information indicating a point and / or information indicating whether the current frame and the video of the immediately preceding frame are the same or different, and / or 2
A magnetic recording / reproducing apparatus, wherein information indicating a time difference between field images and / or information indicating whether a recorded image is a fixed number of still image frames is recorded.

(5) A moving image or / and a still image or / and a sound are recorded on a magnetic tape,
And a magnetic recording / reproducing apparatus that performs recording by adding information indicating other image information when recording a still image, and has a function of searching for the recorded still image based on the image information. A magnetic recording / reproducing apparatus characterized in that a function of a switch is switched when a still image is continuously recorded by image information therein.

(6) In the magnetic recording / reproducing apparatus according to the above (5), it is preferable that the switch whose function is switched is a switch (Fwd Frame Sw) that advances in a feed direction or a switch that advances in a return direction (Rvs Frame Sw). Characteristic magnetic recording / reproducing device.

(7) The magnetic recording / reproducing apparatus according to the above (5), wherein the switch for switching the function includes a switch (Fwd Frame Sw) for moving forward in a forward direction and a switch (RvsFrame Sw) for moving forward in a return direction. When a still image is discriminated from a still image by the image information added and recorded when recording an image and / or a still image, the function of a switch (Fwd Frame Sw) for advancing in the feed direction is a function of reproducing the next image based on the image information. And a switch (Rv
s Frame Sw) function to play back the previous image based on the image information. If the image information identifies the moving image, the function of the switch (Fwd Frame Sw) to advance in the feed direction is changed to the image of the next frame. A magnetic recording / reproducing apparatus characterized in that the function of reproducing the image of the immediately preceding frame is a function of reproducing the image of the immediately preceding frame.

(8) In the magnetic recording / reproducing apparatus according to the above (5), image information used for identification of a still image and / or identification of a continuously recorded still image and / or retrieval of a still image is Information indicating the start point of the still image recording area and / or information indicating whether the current frame and the video of the immediately preceding frame are the same or different, and / or the time difference between the two-field video in one frame. And / or information indicating whether the recorded video is a still image frame number fixed recording.

(9) In the magnetic recording / reproducing apparatus according to the above (1) and / or (5), the image information used for switching the switch function is replaced with information indicating a start point of a still image recording area and / or Information indicating whether the video of the current frame and the immediately preceding frame are the same or different, and / or information indicating the time difference between the two-field video in one frame, and / or the recorded video is a still image A magnetic recording / reproducing apparatus, characterized in that the information is information indicating whether the recording is a fixed number of frames.

(10) In the magnetic recording / reproducing apparatus described in the above item (1) and / or the item (5), a switch (Fwd Fram) for advancing in a feed direction is provided for a switch whose function is switched.
e Sw) and a switch (Rvs Frame Sw) to advance in the return direction, and indicates whether or not the fixed number of still image frames, which is image information added and recorded at the time of recording the moving image or / and still image, is recorded. If the information indicates fixed recording of the number of still image frames, a switch (Fwd
Frame Sw) function is a function to play back the image of fixed number of frames ahead, and switch forward (Rvs Frame Sw)
Function to play back images that are a fixed number of frames earlier,
If the fixed number of frames of the still image is not indicated, the switch of the forward direction (Fwd Frame Sw) is changed to the function of reproducing the image of the next frame, and the switch of the forward direction (Rvs Frame Sw) is set. A function of reproducing the image of the immediately preceding frame.

(11) In the magnetic recording / reproducing apparatus according to the above (1) and / or (5), when the function of the switch is determined, it indicates whether or not the recorded video is a fixed number of still image frames. A magnetic recording / reproducing apparatus characterized in that, when the image information indicates whether the recording is a fixed recording of the number of still image frames, priority is given to information indicating other image information.

(12) A magnetic recording / reproducing apparatus having the function described in the above item (1) and / or (5), and having a function of prohibiting a switch function from being switched.

[0018]

Embodiments of the present invention will be described below.

FIG. 1 is a block diagram showing the configuration of a camera-integrated VTR as an example of a magnetic reproducing / recording apparatus according to the present invention.
Is a signal processing unit for converting a video signal input from a camera unit into a signal shown in FIG. 2 and a signal shown in FIG. 2 reproduced from a magnetic tape by a mechanical deck 4 described later. System controller,
4 is a mechanical deck for recording the signal processed by the signal processing unit 2 on a magnetic tape and reproducing the signal recorded on the magnetic tape, and 5 is a monitor for monitoring a video signal processed by the signal processing unit 2. The EVF unit, SW1 to SW5 attached to the system controller 3, record,
A switch for controlling VTR such as reproduction, fast forward, rewind, pause, etc., SW6 is a switch for feeding the tape in the forward direction, SW7 is a switch for feeding the tape in the reverse direction, and SW8 is a tape. A switch for selecting a function of a feed switch, SW9 is a switch for retrieving a still image area.

FIG. 2 is an explanatory diagram showing data recorded on the digital VTR, and shows an area where each flag used in the embodiment of the present invention is recorded. Information (PPID flag) indicating the start point of the still image recording area is recorded in the subcode sector, VAUX (Video Auxiliary) is recorded together with video data in the video sector, and the current frame and the immediately preceding frame are recorded in the VAUX area. The information (FC flag) indicating whether the video of the frame is the same or different, the information (ST flag) indicating the time difference between the video of two fields in one frame, and the Information (SC flag) indicating whether or not the image is fixed to five frames is included.

FIGS. 3A to 3C show the relationship between the video data and each flag. FIG. 3A shows a case where the recorded video is a fixed recording of five still images. FIG. 3B shows a case where still images are continuously shot.
(C) is a case where a single still image is taken.

FIG. 4 is a flow chart of the system controller 3 for controlling the video camera according to the present embodiment. The operation of the camera-integrated VTR at the time of reproducing the magnetic tape will be described with reference to this flow chart. In step S2, the currently reproduced image is the information (P
(PID flag, FC flag, ST flag, SC flag)
Is determined to be a still image (each flag is
In the states shown in (a) to (c)), the processing after step S3 is performed, and when it is determined that the image is a moving image (each flag is a state other than those in FIGS. 3A to 3C), The processing after S7 is performed. Here, the processing when it is determined that the image is a still image will be described with reference to a flowchart. In steps S3 and S4, a tape feed switch (SW
6, SW7), and if the switch SW6 for feeding the tape in the forward direction is ON or the switch SW7 for feeding the tape in the reverse direction is ON, the SC flag is checked (S9). , Or S1
1) If the reproduced video indicates that the still image is fixedly recorded with 5 frames, the image after 5 frames or 5
The image before the frame is reproduced (S9-S10-end or S11-S12-end), and if the reproduced image is not a fixed recording of five still images, the tape is fed until the FC flag becomes 1. , The frame is reproduced (S9-S14-S15-S16-end, or S1
1 to S18 to S19 to S20 to end), the switch function is switched to a function of reproducing the next image and the previous image.

Next, the processing when it is determined that the moving picture is determined will be described with reference to a flowchart. In steps S7 and S8, a switch (SW6, SW
7) is detected, and when the switch SW6 for feeding the tape in the forward direction is ON, the next frame is reproduced (S7 to S13 to end), and the switch SW7 for feeding the tape in the reverse direction is turned ON. In the case of (1), the reproduction of the immediately preceding frame (S8 to S17 to end) is executed, and the switch function is switched to the function of reproducing the next frame or the immediately preceding frame.

In step S1, a switch SW9 for retrieving a still image area is detected. When the switch SW9 is ON, the tape is fed until the PPID indicates recording of a still image.
And then the switch function switches, the next image,
It has a function of reproducing the previous image (S1 to S5).
S5 to S6 to S3).

[0025]

As described above, according to the present invention,
Information indicating the start point of the still image recording area (PPID flag), which is additionally recorded when recording a still image and a moving image, and information indicating whether the video of the current frame and the video of the immediately preceding frame are the same or different. (FC flag) Information indicating a time difference between two fields of video within one frame (ST flag) and information indicating whether the recorded video is fixed recording of five still images (SC flag) is used. Thus, in the still image recording area, the forward exposure switch is used as a switch for selecting the next image, and the reverse exposure switch is used as a switch for selecting the previous image. The operability provides an effect that images recorded before and after can be output by one exposure operation even in a still image area.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of a camera-integrated VTR as an example of a magnetic reproducing / recording apparatus according to the present invention.

FIG. 2 is an explanatory diagram showing data recorded on a digital VTR.

FIGS. 3A, 3B, and 3C are explanatory diagrams showing a relationship between data recorded on a digital VTR, video data, and an image information flag.

FIG. 4 is a flowchart of a system controller that controls a video camera according to the present embodiment.

[Explanation of symbols]

 Reference Signs List 1 camera section 2 signal processing section 3 system controller section 4 mechanical deck section 5 EVF section SW1 recording switch SW2 playback switch SW3 fast forward switch SW4 rewind switch SW5 pause switch SW6 switch for tape feeding in forward direction SW7 tape in reverse direction Switch for making the feed switch SW8 Function selection switch of the tape feed switch SW9 Switch for retrieving the still image area

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification code FI H04N 5/91

Claims (12)

[Claims] 1. A magnetic recording apparatus for recording a moving image or / and a still image or / and sound on a magnetic tape, and recording the moving image and / or the still image by adding information indicating other image information when recording the moving image or / and the still image. In the recording / reproducing apparatus, a function of a switch is switched for a moving image and / or a still image identified by the recorded image information. 2. The magnetic recording and reproducing apparatus according to claim 1, wherein
A magnetic recording / reproducing apparatus characterized in that a switch whose function is changed is a switch (Fwd Frame Sw) for advancing in the forward direction or / and a switch (Rvs Frame Sw) for advancing in the reverse direction. 3. The magnetic recording and reproducing apparatus according to claim 1, wherein
The switch that switches the function includes a switch that moves in the feed direction (Fwd Frame Sw) and a switch that moves in the return direction (Rvs Fr
ame Sw), a switch (Fwd Frame) for moving in the feed direction when the moving image and / or the still image is identified from the still image by the image information added and recorded at the time of recording the still image.
e Sw) function to reproduce the next image based on the image information, and a switch (Rvs Frame S
The function of w) is a function of reproducing the previous image by the image information, and when the moving image is identified by the image information, the function of a switch (Fwd Frame Sw) for advancing in the feed direction is used to reproduce the image of the next frame. A magnetic recording / reproducing apparatus characterized in that a function of a switch (Rvs Frame Sw) for moving in a return direction is a function of reproducing an image of a previous frame. 4. The magnetic recording / reproducing apparatus according to claim 1, wherein
Image information used for identifying a still image and / or switching between continuously recorded still images includes information indicating a start point of a still image recording area or / and video of a current frame and a previous frame. Information indicating whether they are the same or different, and / or information indicating a time difference between two fields of video in one frame, and / or information indicating whether the recorded video is a fixed number of still image frames. A magnetic recording / reproducing apparatus, characterized in that: 5. A magnetic recording apparatus for recording a moving image or / and a still image or / and sound on a magnetic tape, and recording the moving image and / or the still image by adding information indicating other image information when recording the moving image or / and the still image. The recording / reproducing apparatus has a function of searching for a recorded still image based on image information. When a still image is continuously recorded based on image information during a search for a still image, the function of the switch is turned off. A magnetic recording / reproducing apparatus characterized by being replaced. 6. The magnetic recording and reproducing apparatus according to claim 5,
A magnetic recording / reproducing apparatus characterized in that a switch whose function is changed is a switch (Fwd Frame Sw) for advancing in the forward direction or / and a switch (Rvs Frame Sw) for advancing in the reverse direction. 7. The magnetic recording and reproducing apparatus according to claim 5,
The switch that switches the function includes a switch that moves in the feed direction (Fwd Frame Sw) and a switch that moves in the return direction (Rvs Fr
ame Sw), a switch (Fwd Frame) for moving in the feed direction when the moving image and / or the still image is identified from the still image by the image information added and recorded at the time of recording the still image.
e Sw) function to reproduce the next image based on the image information, and a switch (Rvs Frame S
The function of w) is a function of reproducing the previous image by the image information, and when the moving image is identified by the image information, the function of a switch (Fwd Frame Sw) for advancing in the feed direction is used to reproduce the image of the next frame. A magnetic recording / reproducing apparatus characterized in that a function of a switch (Rvs Frame Sw) for moving in a return direction is a function of reproducing an image of a previous frame. 8. The magnetic recording and reproducing apparatus according to claim 5,
Image information used for identification of still images and / or identification of continuously recorded still images and / or retrieval of still images is replaced with information indicating a start point of a still image recording area or /
Information indicating whether the video of the current frame and the immediately preceding frame are the same or different, and / or information indicating the time difference between two fields of video within one frame, and / or the recorded video is still A magnetic recording / reproducing apparatus, wherein information indicating whether the recording is a fixed number of image frames is provided. 9. The magnetic recording and reproducing apparatus according to claim 1, wherein the image information used for switching the switch function is information indicating a start point of a still image recording area or / and a current frame. And / or information indicating whether the video of the immediately preceding frame is the same or different, and / or information indicating the time difference between two-field video within one frame, and / or the number of still image frames is fixed. A magnetic recording / reproducing apparatus, wherein the information is information indicating whether or not recording is performed. 10. The magnetic recording / reproducing apparatus according to claim 1, wherein the switches whose functions are switched include a forward switch (Fwd Frame Sw) and a backward switch (Rvs Frame Sw). And the information indicating whether or not the still image frame number fixed recording, which is the image information added and recorded at the time of recording the moving image or / and the still image, indicates the still image frame number fixed recording In the, the function of the switch to advance in the feed direction (Fwd Frame Sw) is a function to reproduce the image of a fixed number of frames ahead, and the function of the switch to advance in the return direction (Rvs Frame Sw) to reproduce the image before the fixed number of frames If it does not indicate fixed recording of the number of still image frames, the function of the switch (Fwd Frame Sw) to advance in the feed direction is to reproduce the image of the next frame, and to the return direction. Magnetic recording and reproducing apparatus characterized by the features of Mel switch (Rvs Frame Sw) and a function of reproducing an image of the previous frame. 11. The magnetic recording / reproducing apparatus according to claim 1, wherein when determining the function of the switch, image information indicating whether the recorded video is a fixed number of still image frames is recorded. A magnetic recording / reproducing apparatus characterized in that, when it is indicated whether the recording is a fixed recording of the number of still image frames, priority is given to information indicating other image information. 12. A magnetic recording / reproducing apparatus having the function according to claim 1 and / or claim 5, wherein the apparatus has a function of setting a switch function to be inhibited from being switched.