JP3927675B2 - Magnetic recording / reproducing device - Google Patents

Description

[0001]
BACKGROUND 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]
[Prior art]
Conventionally, in the video recording area and still image recording area, the playback mode in which the next frame is played by the forward frame advance switch, such as the built-in switch and external remote controller, etc. when playback is paused, or the previous frame is moved by the backward frame advance switch. There is a playback mode for playback, and a method of playing back recorded images in units of one frame (one frame) is used.
[0003]
[Problems to be solved by the invention]
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 recorded image is output. Even if the forward feed operation and the reverse feed operation are performed, the same image is output, so that there is a problem that the feed operation must be performed several times.
[0004]
The present invention has been made paying attention to the above points, and even when a plurality of still images are recorded in the still image area, the next recording is performed by a single switch operation similar to the moving image recording. It is an object of the present invention to provide a magnetic recording / reproducing apparatus that can output an existing image.
[0005]
[Means for Solving the Problems]
This invention can solve the said subject by providing the following structure.
[0006]
(1) moving image and the still image picture is recorded on a magnetic tape, during recording of a moving image and a still image, at least, information indicating whether the still picture frame numbers clamp recordings and video of the current frame and the previous frame It switched in but in a magnetic recording and reproducing apparatus for recording by adding information indicating a different or whether the same, with respect to moving images and still images identified by the added information at the time of the recording, functions as the switch has a switch to advance in a direction back to switch to advance in the feeding direction, if the information indicating whether the pre Kisei Tomega number of frames fixed record indicates the number of still frames fixed record , the function of the switch to advance in the feeding direction and the ability to reproduce an image of a fixed number of frames away, and the ability to reproduce an image before the number fixed frame the function of the switch to proceed to the return direction, stationary If not indicate the frame fixed number record, the function of the switch to advance in the feeding direction, of the current frame from the previous frame, the different or image of the current frame and the previous frame are identical information indicating whether is a function of the video of the current frame and the previous frame is reproduced the image of the frame indicating that it is different, the function of the switch to proceed to the return direction, of the previous frame than the current frame the information indicating whether the video of the current frame and previous frame are different or are identical is a function of the image of the current frame and previous frame to reproduce an image of a frame indicating that it is different from A magnetic recording / reproducing apparatus.
[0007]
(2) In the magnetic recording and reproducing apparatus according to item (1), the pre-crisis record information recorded in addition to the time, when identified as a moving image, a function of the switch to advance in the feeding direction following function of reproducing an image of the frame and then, a magnetic recording and reproducing apparatus characterized by the features of the switch for advancing to back direction and functions to reproduce an image of the previous frame.
[0008]
(3) In the magnetic recording / reproducing apparatus described in (1), the information added and recorded at the time of recording used for identification of still images and identification of switching of continuously recorded still images, Information indicating the start point of the image recording area or / and information indicating whether the video of the current frame and the previous frame are the same or different, or / and the time difference between the video of two fields in one frame. A magnetic recording / reproducing apparatus, characterized in that information indicating information and / or information indicating whether a recorded video is a fixed number of still image frames is recorded.
[0009]
(4) records the moving image and a still image images on a magnetic tape, during recording of a moving image and a still image, at least, a still image indicating there a frame fixed number recorded information allowance preliminary current frame and the previous frame In the magnetic recording / reproducing apparatus, recording is performed by adding information indicating whether the video is the same or different , and has a function of performing a search based on the recorded information by adding a recorded still image at the time of recording , the record information recorded in addition to the time during a search of the still image, return direction to indicate that the still image is continuously recorded, as toggle its switch function, the switch to advance in the feeding direction has a switch to proceed to the front Kisei Tomega information indicating which frame fixed number record, when the identification information indicates a still picture frame fixed number of recording, fixed frame the function of the switch to advance in the feeding direction And ability to play the previous image, and a function of reproducing an image before the number fixed frame the function of the switch to proceed to the return direction, and when do not show a still picture frame number fixed recording advances in the feed direction the function of the switch, of the current frame from the preceding frame, the information indicating different whether video of the current frame and the previous frame are identical is, the image of the current frame and the previous frame and the ability to reproduce an image of a frame indicating that it is different, the function of the switch to proceed to the return direction, of the previous frame than the current frame, but the image of the current frame and the previous frame are the same The information indicating whether or not the information is a function of playing back an image of a frame indicating that the video of the current frame and the previous frame are different. That the magnetic recording and reproducing apparatus.
[0010]
(5) In the magnetic recording and reproducing apparatus according to item (4), before when identified as moving images by Kiki image information recorded in addition to the time of recording, the switch advancing in the feed direction function of the following and the ability to reproduce an image of a frame, a magnetic recording and reproducing apparatus characterized by the features of the switch for advancing to back direction and functions to reproduce an image of the previous frame.
[0011]
(6) In the magnetic recording / reproducing apparatus described in (4) above, the additional recording is performed at the time of recording used for identification of still images, identification of continuously recorded still images, and retrieval of still images . Information indicating the starting point of the still image recording area or / and information indicating whether the video of the current frame and the previous frame is the same or different, and / or two fields in one frame A magnetic recording / reproducing apparatus, characterized in that information indicating a time difference between videos and / or information indicating whether a recorded video is a fixed number of still image frames.
[0012]
(7) In the magnetic recording / reproducing apparatus described in ( 1) or (4) above, the image information used for switching the switch function is information indicating the start point of the still image recording area or / and the current frame. Information indicating whether the video of the same frame is the same or different or / and information indicating the time difference between two fields in one frame or / and the recorded video is a fixed number of still image frames. A magnetic recording / reproducing apparatus characterized in that the information indicates whether or not there is .
[0013]
(8) above (1) or the previous section has the function of a magnetic recording and reproducing apparatus according to (4), a magnetic recording and reproducing apparatus switch functions characterized by have a function capable of prohibiting setting the switches.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0019]
FIG. 1 is a block diagram showing a configuration of a camera-integrated VTR as an example of a magnetic reproducing / recording apparatus according to the present invention. 1 is a camera unit for converting a subject into a video signal, and 2 is a video signal input from the camera unit. 2 is processed into a signal shown in FIG. 2 and a signal processing unit for processing the signal shown in FIG. 2 reproduced from the magnetic tape by a mechanical deck 4 to be described later, 3 is a system controller unit for controlling each unit, and 4 is signal processing A mechanical deck unit for recording the signal processed by the unit 2 on the magnetic tape and reproducing the signal recorded on the magnetic tape, 5 is an EVF unit for monitoring the video signal processed by the signal processing unit 2 SW1 to SW5 attached to the system controller 3 are switches for controlling VTR such as recording, reproduction, fast forward, rewind, pause, etc., and SW6 Switch for the tape feeding the positive direction, SW7 switches for causing the tape feeding in the opposite direction, SW8 in function selecting switch of the tape feed switch, SW9 is a switch for searching the still image area.
[0020]
FIG. 2 is an explanatory diagram showing data recorded in the digital VTR, and shows an area in which 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 same frame is the same or different, the information (ST flag) indicating the time difference between the two fields in one frame, and the recorded video are still The information (SC flag) indicating whether or not the image 5 frame fixed recording is included.
[0021]
FIGS. 3A to 3C show the relationship between the video data and the respective flags. FIG. 3A shows a case where the recorded video is a still image 5 frame fixed recording. 3 (b) shows a case where the still images are continuously shot, and FIG. 3 (c) shows a case where the still images are single-shot.
[0022]
FIG. 4 is a flowchart of the system controller 3 that controls the video camera in the present embodiment. Based on this flowchart, an operation at the time of reproducing the magnetic tape of the camera-integrated VTR will be described. When it is determined in step S2 that the currently reproduced image is a still image based on the information (PPID flag, FC flag, ST flag, SC flag) (each flag is shown in FIGS. 3A to 3C). In the state shown in FIG. 3, the process in step S3 and subsequent steps is performed, and when it is determined that the image is a moving image (each flag is in a state other than FIGS. 3A to 3C), the process in step S7 and subsequent steps is performed. . Here, processing when it is determined as a still image will be described with reference to a flowchart. In steps S3 and S4, the switches (SW6, SW7) that perform tape feeding are detected, and 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 turned on. In this case, the SC flag is checked (S9 or S11), and if the reproduced video indicates that the still image is 5 frames fixed recording, the image after 5 frames or the image before 5 frames is reproduced. (S9 to S10 to end, or S11 to S12 to end), and if the reproduced image is not a still image 5 frame fixed recording, the tape is fed until the FC flag becomes 1, and the frame is reproduced. (S9 to S14 to S15 to S16 to end, or S11 to S18 to S19 to S20 to end), the switch function is switched to the next Image, the ability to play the previous image.
[0023]
Next, processing when it is determined to be a moving image will be described with reference to a flowchart. In steps S7 and S8, the tape feeding switches (SW6 and SW7) are 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). When the switch SW7 for feeding the tape in the reverse direction is ON, the immediately preceding frame is reproduced (S8 to S17 to end), and the switch function is switched to reproduce the next frame or the immediately preceding frame. It becomes a function.
[0024]
In step S1, the switch SW9 for searching the still image area is detected. When the switch SW9 is ON, the tape is fed until the PPID indicates the still image recording, and the subsequent switch function is switched. The function is to reproduce the next image and the previous image (S1 to S5 to S6 to S3).
[0025]
【The invention's effect】
As described above, according to the present invention, information indicating the start point of the still image recording area (PPID flag), the video of the current frame and the immediately preceding frame, which is additionally recorded when recording still images and moving images. Indicating whether they are the same or different (FC flag), information indicating the time difference between two fields of video in one frame (ST flag), and the recorded video is a fixed five frame still image recording In order to select the next image in the still image recording area, the reverse direction feed switch is used to select the previous image. With the same operability as moving image recording, it is possible to output images recorded before and after with a single feed operation even in a still image area. To.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a camera-integrated VTR as an example of a magnetic reproduction recording apparatus according to the present invention. FIG. 2 is an explanatory diagram showing data recorded in a digital VTR. b), (c) Explanatory diagram showing the relationship between the data recorded in the digital VTR, the video data and the image information flag. FIG. 4 is a flowchart of the system controller for controlling the video camera in this embodiment.
DESCRIPTION OF SYMBOLS 1 Camera part 2 Signal processing part 3 System controller part 4 Mechanical deck part 5 EVF part SW1 Recording switch SW2 Reproduction switch SW3 Fast forward switch SW4 Rewind switch SW5 Pause switch SW6 Switch SW7 for making tape feed in the forward direction Tape in the reverse direction Switch SW8 for feeding function selection switch SW9 for tape feeding switch Switch for searching still image area

Claims (8)

Recording the moving picture and still picture images on a magnetic tape, during recording of a moving image and a still image, at least, information indicating whether the still picture frame numbers clamp recordings and video of the current frame and the previous frame is identical in the magnetic recording and reproducing apparatus for recording by adding information indicating a different or whether those for moving images and still images identified by the added information at the time of the recording, as toggle its switch function, It has a switch to advance in a direction back to switch to advance in the feed direction, information indicating which pre Kisei Tomega number of frames fixed record, when the identification information indicates a still picture frame number fixed recording, feeding direction the function of the switch to proceed with a function for reproducing an image of a fixed number of frames away, and the ability to reproduce an image before the number fixed frame the function of the switch advancing the return direction, also still picture frame If do not show a beam fixed number recording, different functions of the switch to advance in the feeding direction, of the current frame from the previous frame, the one image of the current frame and the previous frame are identical information indicating whether is a function of the video of the current frame and the previous frame is reproduced the image of the frame indicating that it is different, the function of the switch to proceed to the return direction, of the previous frame than the current frame the information indicating whether the video of the current frame and the previous frame are different or are identical is a function of the image of the current frame and the previous frame is reproduced the image of the frame indicated that is different from A magnetic recording / reproducing apparatus. In the magnetic recording reproducing apparatus according to claim 1, the pre-crisis record information recorded in addition to the time, when identified as a moving image, a function of the switch to advance in the feeding direction of the next frame image magnetic recording and reproducing apparatus according to claim the ability to play, the functions of the switch to proceed to the return direction and functions to reproduce an image of the immediately preceding frame that the. 2. The magnetic recording / reproducing apparatus according to claim 1, wherein information recorded by adding at the time of recording used for identification of still images and identification of switching of continuously recorded still images is stored in a still image recording area. Information indicating the start point and / or information indicating whether the video of the current frame and the previous frame are the same or different, and / or information indicating the time difference between two fields of video in one frame or / And a magnetic recording / reproducing apparatus characterized in that the recorded video is information indicating whether the number of still image frames is fixed. Recording the moving picture and still picture images on a magnetic tape, during recording of a moving image and a still image, at least, a still image indicating there a frame fixed number recorded information fee extra current frame and the previous frame image is the same In a magnetic recording / reproducing apparatus, recording is performed by adding information indicating whether the image is different or different , and has a function of searching for recorded information by adding a recorded still image at the time of recording . the record information recorded in addition to the time during the search is to indicate that the still image is continuously recorded, as toggle its switch function, advances in the direction back to switch to advance in the feeding direction switch has a switch, before the information indicating which Kisei Tomega number of frames fixed record, when the identification information indicates a still picture frame fixed number record, the switch advancing in the feed direction function of the fixed number of frames away And ability to play the image, and the ability to reproduce an image before the number fixed frame the function of the switch to proceed to the return direction, if does not indicate the number of still picture frames fixed recording, switch to advance in the feeding direction The information indicating whether the video of the current frame and the previous frame is the same or different from the current frame is different from the current frame. and the ability to reproduce an image of a frame indicating that it returns the functions of the switch advancing direction, among the current of the previous frame from the frame, or different images of the current frame and the previous frame are identical The information indicating whether the current frame and the previous frame are different from each other is a function of playing back a frame image. Recording and reproducing apparatus. In the magnetic recording reproducing apparatus according to claim 4, when identified as a moving image by the pre-crisis image information recorded in addition to the time of recording, the function of the switch to advance in the feeding direction of the image of the next frame magnetic recording and reproducing apparatus characterized by the ability to play, and the ability to reproduce an image of the previous frame the function of the switch to proceed to the return direction. 5. The magnetic recording / reproducing apparatus according to claim 4, wherein the information added and recorded at the time of recording used for identification of still images, identification of continuously recorded still images, and retrieval of still images, Information indicating the start point of the image recording area or / and information indicating whether the video of the current frame and the previous frame are the same or different, or / and the time difference between the video of two fields in one frame. A magnetic recording / reproducing apparatus, characterized in that information indicating information and / or information indicating whether a recorded video is a fixed number of still image frames is recorded.   5. The magnetic recording / reproducing apparatus according to claim 1 or 4, wherein image information used for switching the switch function includes information indicating a start point of a still image recording area and / or a video of a current frame and a previous frame. , Information indicating whether they are the same or different, and / or information indicating the 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.   5. A magnetic recording / reproducing apparatus having the function of the magnetic recording / reproducing apparatus according to claim 1 or 4, wherein the function of the switch can be set to be prohibited.

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