JP2002314918A - Camera integrated type image recording playback device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of date information that hides part of the image and no consideration of holding the date information at the dubbing for the image signal taken by the camera. SOLUTION: The camera integrated type image recording playback system includes an information signal inserting means for inserting an information signal in a prescribed position of the image signal, an information signal extracting means for extracting the information in the prescribed position for the image signal, and a display signal output means for displaying on the display means. During the recording, various kinds of information as information signals are recorded in a recording medium through the information signal inserting means. During the playback, the information signal stored in the recording medium is extracted by the information signal extracting means and superimposed in the image signal to generate the output from the display signal output means. An information signal determining means for determining whether the information signal from the information signal extracting means complies with the prescribed definition or not is provided. When the outer image signal is recorded, the information signal is switched based on the result from the information signal determining means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera-integrated video recording / reproducing apparatus, and more particularly to an information recording / reproducing apparatus suitable for displaying recorded date and camera video information.

[0002]

2. Description of the Related Art In a camera-integrated video recording / reproducing apparatus, it is functionally necessary to record information such as the date of shooting at the same time as the video so that the user can know when the video was shot. . In the related art, when a recording medium is a tape, on-screen display (hereinafter referred to as OSD (On Screen Display)) is used to store information such as a date at the time of shooting.
Abbreviated). In this technique, information such as a date is superimposed as a character signal on a video signal photographed at the time of recording, and the information is stored by recording the superimposed video signal on a tape. However, in this technology, character signals such as date are recorded on the video,
When the recorded video is played back, the character signal portion displayed by the OSD hides the video, making it difficult to see the video. Also, it was inconvenient because the character signal could not be erased from the reproduced video.

As a technique for improving this, Japanese Patent Laid-Open Publication No.
There is a 6523 publication. According to this, by recording information such as the date in an area different from the video signal of the track,
At the time of reproduction, a character signal can be displayed by the OSD using the information of the other area. When dubbing such that a video signal captured by a camera is input from an external input terminal and recorded, another device capable of reading and outputting information such as a date recorded in an area different from the video signal as a dubbing source is provided. Prepare and receive information such as the dubbing source date from a dedicated input terminal different from the external input terminal for the video signal, and record the received information such as the date in a different area from the video signal of the track. This allows information such as the original date to be kept during dubbing. At this time, if there is no information such as the date, the information such as the date inside the apparatus is recorded. Further, even if there is information such as a date, the mode can be switched to a mode in which the information is manually rewritten to the information such as the date inside the apparatus, and information such as the date at the time of dubbing can be recorded.

[0004]

In the above prior art,
There were the following issues. The first problem is that, as a means for storing date information and the like, the information is recorded by being superimposed on the video portion of the video signal, so that the character signal portion obscures the video, making it difficult to see the video. It is necessary to record data in an area different from the video signal of the track on the recording medium in the case of improving the recording medium, so that the conventional apparatus cannot reproduce the data and becomes incompatible and loses compatibility.

[0005] The second problem is that in order to record information such as the date of the dubbing source at the time of dubbing, the dubbing source device must have the same function as the dubbing source device. Requires another dedicated input / output terminal, which is inconvenient and expensive.

The third problem does not take into consideration that information such as the original date is maintained only for a video signal photographed by a camera during dubbing. For example, at the time of dubbing a video signal recorded from a broadcast or the like, information such as the original date and the like is retained even though the user wants to rewrite the information with the date and the like at the time of dubbing. In order to avoid this, it is necessary to manually switch to a mode for rewriting the date inside the apparatus, which is inconvenient. An object of the present invention is to solve the above-mentioned problem, eliminate the need for a dedicated input terminal for information, and provide a camera-integrated video recording / reproducing device that automatically retains information such as the original date when dubbing from a camera. To provide.

[0007]

According to a first aspect of the present invention, there is provided an information signal inserting means for inserting an information signal into a predetermined area of a video signal, and an information signal inserting means for inserting an information signal into a predetermined area of the video signal. In a camera-integrated video recording / reproducing apparatus provided with an information signal extracting means for extracting an information signal and a display signal output means for displaying the information signal on a display means, when recording, various kinds of information are inserted as information signals when the information signal is inserted. Means for recording on a recording medium by means, and at the time of reproduction, an information signal recorded on the recording medium is extracted by the information signal extracting means, and the extracted information signal is superimposed on a video signal and outputted from the display signal output means. It is characterized by the following.

In a preferred first embodiment, the predetermined area of the video signal is a vertical blanking period of the video signal. According to this method, the compatibility with the conventional device and the problem can be solved because the conventional device can be used at the time of dubbing. In a preferred second embodiment, the various information is at least source information, date information, time information. And data discrimination information.

In a third preferred embodiment, in the camera-integrated video recording / reproducing apparatus according to any one of claims 1 to 3, the various kinds of information at the time of recording a video from a built-in camera are information inside the apparatus. There is a feature.

In a preferred fourth embodiment, in the camera-integrated video recording / reproducing apparatus according to any one of claims 1 to 3, the information for judging whether the information signal extracted by the information signal extracting means conforms to a predetermined definition. A signal judging means is provided, and when recording an external video signal, the information signal to be recorded is switched according to the result of the information signal judging means.

In a preferred fifth embodiment, at the time of recording, if the information signal conforms to a predetermined definition by the information signal judging means, the content of the information signal is recorded as it is, and if the information signal does not conform to the predetermined definition, or When there is no signal, various information inside the device is recorded as an information signal. Thereby, at the time of dubbing, information such as the date of only the video taken by the camera is automatically maintained.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration diagram of an embodiment of a camera-integrated video recording / reproducing apparatus embodying the present invention.

The system control microcomputer 1 controls the camera-integrated video recording device by the operation buttons 4 operated by the operator. The OSD circuit 2 outputs a character signal for screen display converted into a signal according to a command from the system control microcomputer 1. The data slicer circuit 3 outputs a signal for inserting additional information such as a date into a vertical blanking interval (hereinafter abbreviated as VBI) of a video signal according to a command from the system control microcomputer 1. Further, additional information such as a date is extracted from the input video signal, and the additional information is transmitted to the system control microcomputer 1 as data. The VBI will be described later with reference to FIG. The operation button 4 is an operation button of the present apparatus. The camera control microcomputer 5 includes a CCD 6, a camera / video DSP 8
The microcomputer 1 controls the camera unit and controls the information of the camera unit (shutter speed, iris information, etc.).
Send to by communication. The CCD 6 is an imaging unit that converts light into an analog video signal. The A / D converter 7 converts an analog video signal from the CCD 6 or the external input terminal 13 into a digital video signal. The camera / video DSP 8 is A
The digital video signal converted by the / D converter 7 is processed according to a command from the camera control microcomputer 5. The D / A converter 9 converts the digital video signal processed by the camera / video DSP 8 into an analog video signal. The video signal processing circuit 10 performs processing such as amplifying the analog video signal and superimposing various signals output from the OSD circuit 2 and the data slicer circuit 3 on the analog video signal. The display 11 is a display device for displaying an analog video signal and a superimposed text signal for screen display. The mechanism 12 is a tape deck when the recording medium is a tape. The external input terminal 13 is an input terminal for recording an analog video signal from an external device. Camera / external input switch 14
Switches between a video to be recorded and an input from an external device. The recording / reproduction switch 15 switches an analog video signal input to the data slicer circuit 3. The signal conversion circuit 16 is a circuit that converts a signal from the video signal processing circuit 10 into a signal that can be recorded by the mechanism 12. Thus, even if the recording medium becomes a material other than tape, the signal conversion circuit 16 can convert the signal to cope with the problem.

Here, the display 11 may be a display device which is not built in the present apparatus but is connected to the outside.

Here, the recording medium is not limited to a tape,
An optical disk, a hard disk, an IC card, a semiconductor memory or the like may be used as long as it can record video information. At this time, the drive unit of the mechanism 12 is changed depending on the recording medium, such as an optical disk drive unit when the recording medium is an optical disk.

In this embodiment, the video signal processing circuit 10 and the signal conversion circuit 16 are provided separately, but they may be integrated.

Next, a case where the image of the camera at the time of shooting is recorded on a recording medium will be described. The analog video signal captured by the CCD 6 enters the A / D converter 7 when the system control microcomputer 1 switches the camera / external input switch 14 to the camera input side. This A / D converter 7
Is converted to a digital video signal by a camera / video DSP
In step 8, the video signal is processed. The digital video signal subjected to the signal processing is converted into an analog video signal by the D / A converter 9 and input to the video signal processing circuit 10. Where D /
The analog video signal from the A converter 9 is output as an analog video signal having no information signal at the 19th position of the additional information signal data area of the horizontal scanning line. Further, here, the system control microcomputer 1 controls the data slicer circuit 3 and according to a predetermined definition, information (for example, date and time at the time of shooting, camera information (such as shutter speed), etc.) held by the system control microcomputer 1 according to a predetermined definition. The data slicer circuit 3 outputs a signal for inserting additional information at the 19th position in the additional information signal data area of the horizontal scanning line. The signal for inserting the additional information is superimposed on the analog video signal having no information signal in the additional information signal data area of the horizontal scanning line from the D / A converter 9 by the video signal processing circuit 10, The conversion circuit 16 controls the mechanism 12
The signal is converted into a recordable signal and recorded on a recording medium by the mechanism 12. As a result, information such as the date at the time of shooting, which the system control microcomputer 1 has, can be stored in the medium as additional information without hiding the image itself of the image signal.
The data according to the predetermined definition will be described later with reference to FIG.

Next, a case in which a video signal input from the external input terminal 13 is recorded on a recording medium will be described. The analog video signal input from the external input terminal 13 enters the A / D converter 7 when the system control microcomputer 1 switches the camera / external input switch 14 to the external input side. The signal is converted into an analog video signal by a D / A converter 9 via a camera / video DSP 8 and input to a video signal processing circuit 10 in the same manner as the signal from the CCD 6. When the system control microcomputer 1 switches the recording / reproduction switch 15 to the recording side, an analog video signal from an external input is input to the data slicer circuit 3. The data slicer circuit 3 extracts data recorded from the 19th position of the additional information signal data area of the horizontal scanning line existing in the frame under the control of the system control microcomputer 1 from the analog video signal input from the external input. I do. The system control microcomputer 1 determines whether the data extracted by the data slicer circuit 3 complies with the above-described predetermined data definition information. A processing method for determining whether or not the data is in accordance with the predetermined data definition information will be described later with reference to FIG.

Here, the determination as to whether or not the data is in accordance with the predetermined data definition information may be made by extracting information from several frames and continuously checking it in consideration of signal reliability. .

If the data does not conform to the predetermined data definition or there is no additional information signal data, the information of the input signal cannot be inherited.
System control microcomputer 1 as well as video signal recording from
The information such as the current date possessed by is defined as a data definition according to a predetermined definition and recorded on a medium. For example, the category information 100 becomes an external input and the data classification information 101
Can record information such as date / time at the time of recording from an external input by recording date and time data on a medium.

If the data matches predetermined data, it is assumed that the input video signal is data stored at the time of shooting, and the system control microcomputer 1 obtains the information once and stores the information at the time of video recording. By controlling the slicer circuit 3, the acquired information is recorded as it is on the medium together with the analog video recording. As a result, even when dubbing is performed by an external input, the dubbing storage can be performed while inheriting the information obtained when the image was first captured by the camera.

In this embodiment, when the data matches the predetermined defined data, the acquired information is rewritten with the same information as it is. However, the additional information signal of the horizontal scanning line is not rewritten, and the original signal is not rewritten. May be recorded as it is.

Next, the additional information included in the VBI will be described with reference to FIG. FIG. 2 shows a vertical blanking period signal of a television signal. This camera-integrated video recording device
It records and reproduces date information etc. in VBI.

NTSC (National Television System Commit)
The television image signal of the tee) system is an interlace system. That is, one of 525 horizontal scanning lines
One frame image is composed of a field image composed of odd-numbered horizontal scanning lines among 525 lines, and a field image composed of even-numbered horizontal scanning lines. Therefore, one field image has 262.5 horizontal scanning lines. Here, the first to 21st of the 262.5 horizontal scanning lines of the field image, called VBI, are portions where the video is not visible on the screen. Of these, the first to ninth horizontal scanning line areas are vertical synchronization signals. The 10th to 21st horizontal scanning line areas are additional information signal data areas, into which additional information signals can be inserted. An example of the additional information signal inserted into the additional information signal data area is IEC61880 of the IEC standard. In this camera-integrated video recording / reproducing apparatus, for example, the system control microcomputer 1 controls the data slicer circuit 3 by a command in the additional information signal data area of this horizontal scanning line, and records information 19th.

In the description of this embodiment, the position of the horizontal scanning line into which the additional information signal is inserted is the nineteenth position. However, the position is not limited to this.

Next, the predetermined definition of the additional information to be inserted into the horizontal scanning line will be described with reference to FIG. FIG. 3 shows one embodiment of the predetermined definition. First, the category information 100 is data that defines what the video input source is.
Data following as the data classification information 101 is data indicating whether the data is date, time, or camera information data. In addition, the contents of the date, time, and camera information classified by the data classification information 101 are composed of information data 102 and data discrimination information 103. The data discrimination information 103 is fixed discrimination data that does not change at all even if the content of the data changes, and is used for discrimination of predetermined definition data at the time of reproduction or external input, which will be described later. The system control microcomputer 1 controls to record data defined by this definition in the VBI. In this definition, category information 100 and data classification information 10
By sequentially switching and recording 1 for each frame, as the data classification increases, various types of information can be stored in the recording medium as much as the data classification increases.

Next, referring to FIG.
A description will be given of an embodiment of a process for determining whether or not the above-mentioned predetermined data definition information is followed.

FIG. 4 is a flowchart showing an example of the judgment process of the system control microcomputer 1. In this embodiment,
Only data extracted five times in a row is determined as predetermined data definition information. Data used by the system control microcomputer 1 for discrimination includes a detection counter 1 and a detection counter 2. The detection counter 1 is a confirmation counter used when the category information 100 is a camera. The detection counter 2 is a confirmation counter used when the category information 100 is an external input. First, it is determined whether the data of the data determination information 103 among the extracted data is valid or invalid (S01). Further, if it is valid, it is determined whether the category information 100 is unusable information (S02). If the data discrimination information 103 is invalid, the category information 100 is unusable information, or if there is no information data, the detection counters 1 and 2
Are cleared to zero (S09), and this determination processing ends. This zero clear (S09) is performed to detect the continuity of the extracted data. When the data discrimination information 103 is valid and the category information 100 is not the unusable information, it is determined whether the category information 100 is a camera (S03). If it is determined (S05) that the input is not an external input, this determination processing ends. If the category information 100 is camera or external input,
If each detection counter 1 or 2 is 5
It is determined whether the above is true (S04, S06), and if it is less than 5, the detection counter 1 or the detection counter 2
Is incremented (S10, S11). When each of the detection counters 1 or 2 is 5 or more, it is assumed that the respective information is determined according to the respective category information 100 (S07, S08) and the predetermined data definition is matched.

FIG. 5 shows an embodiment of an image output to the display 11 during reproduction. At the time of reproduction, the operator can switch between the display off mode 104, the display on mode (with information) 105, and the display on mode (without information) 106 by using the operation buttons 4. If additional information of horizontal scanning lines can be extracted during reproduction in the display-on mode, the display-on mode (information present) 105 is set and the date is displayed. If additional information of horizontal scanning lines cannot be extracted during reproduction in the display-on mode, the display-on mode (no information) 106
This is the display-on mode, but the date display portion is displayed as "-". In this display-on mode (with information) 105, the image is hidden, but it is possible to display only when information such as date is required. Is switched to the display-off mode 104 by the operation button 4 and reproduced again, so that the image can be viewed without hiding the video with information such as date. To obtain the additional information data of the horizontal scanning line in the case of the reproduction, the system control microcomputer 1 switches the recording / reproduction switch 15 to the reproduction side and inputs the analog video signal reproduced from the recording medium to the data slicer circuit 3. Let it. Furthermore,
Under the control of the system control microcomputer 1, data recorded from the 19th position of the additional information signal data area of the horizontal scanning line existing in the video frame is extracted and obtained from the analog video signal input by the data slicer circuit 3. . The system control microcomputer 1 determines whether the data extracted by the data slicer circuit 3 complies with predetermined definition information. If the data does not match the predetermined data definition information, the data is ignored. If the data matches the predetermined data definition information, the OSD circuit 2 displays a character corresponding to the data corresponding to the predetermined data definition information on the image according to the display mode instruction by the operator using the operation button 4. Can be displayed.

[0030]

As described above, according to the present invention, date information and time information required by the operator can be viewed according to the operator's intention without hiding the recorded video.

Also, even when dubbing is performed by an external input, the information at the time of recording can be taken over as it is. Further, the storage medium is an effective means not only for a tape but also for a disk. Even when a video is dubbed from a disk to a tape or from a tape to a disk, the information at the time of shooting can be taken over as it is.

[Brief description of the drawings]

FIG. 1 is a hardware configuration diagram of a camera-integrated video recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a vertical blanking period signal of a television signal.

FIG. 3 is an example of predetermined definition data for recording information.

FIG. 4 is an example of a data determination processing flowchart.

FIG. 5 is an example of a display screen in a display on mode / display off mode.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... System control microcomputer, 2 ... OSD circuit, 3 ... Data slicer circuit, 4 ... Operation button, 5 ... Camera control microcomputer, 6 ... CCD sensor, 7 ... A / D converter, 8 ... Camera / video DSP circuit, 9 ... D / A converter, 10 ... Video amplifier circuit, 11 ... Display, 12 ... Recording / reproducing mechanism, 13 ...・ External input terminal, 14 ・ ・ ・ Camera / external input switch, 15 ・ ・ ・ Record / playback switch, 16 ・ ・ ・ Signal converter, 100 ・ ・ ・ Category information, 101 ・ ・ ・ Data classification information, 102: information data, 104: display off mode screen, 105: display on mode (information present) screen, 106: display on mode (no information) screen.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 7/081 H04N 7/087 7/083 7/08 Z 7/087 7/088 F term (reference) 5C018 FA02 FA03 FB03 FB04 5C022 AA11 AC01 AC42 AC79 5C052 AA01 AA16 AB04 AB05 DD04 5C053 FA15 FA21 JA21 KA08 KA24 KA25 LA01 LA06 LA11 5C063 AA01 AC01 AC10 CA23 CA36 DA03 DA07 DA13 DB02

Claims (6)

[Claims] An information signal inserting means for inserting an information signal into a predetermined area of a video signal, an information signal extracting means for extracting an information signal of a predetermined area of the video signal, and a display means. A camera-integrated video recording / reproducing apparatus provided with a display signal output means for recording various information as information signals on the recording medium by the information signal inserting means at the time of recording, and recording on the recording medium at the time of reproduction. A camera-integrated video recording / reproducing apparatus, wherein an information signal is extracted by the information signal extracting means, and the extracted information signal is superimposed on a video signal and output from the display signal output means. 2. The camera-integrated video recording / reproducing apparatus according to claim 1, wherein the predetermined area of the video signal is a vertical blanking period of the video signal. 3. The various information includes at least source information,
2. The camera-integrated video recording / reproducing apparatus according to claim 1, further comprising date information, time information, and data discrimination information. 4. The camera-integrated video recording / reproducing apparatus according to claim 1, wherein said various information at the time of recording a video from a built-in camera is information inside the apparatus. Item 4. A camera-integrated video recording / reproducing device according to any one of Items 1 to 3. 5. An image recording / reproducing apparatus integrated with a camera according to claim 1, further comprising an information signal judging means for judging whether the information signal extracted by said information signal extracting means conforms to a predetermined definition. 4. An information signal to be recorded is switched according to a result of the information signal judging means when recording a video signal from a computer.
The video recording / reproducing apparatus with a built-in camera according to claim 1. 6. At the time of recording, if the information signal conforms to a predetermined definition by the information signal determining means, the content of the information signal is recorded as it is. The camera-integrated video recording / reproducing apparatus according to claim 5, wherein various information inside the apparatus is recorded as an information signal.