JPH0324870A - Video recording camera - Google Patents

Abstract

PURPOSE:To superimpose the video of an object on that of a hand-written character or an illustrated graphic at the time of reproduction and to reproduce even only the video of the object before superimposing by recording the hand- written character or the illustrated graphic, etc., after multiplexing on the video of the object or a voice signal. CONSTITUTION:When the hand-written character or the illustrated graphic, etc., is not superimposed, the video of the object is recorded on the video track of a video tape after being modulated at a recording part 6A. However, when the hand-written character or the illustrated graphic, etc., is superimposed on the video of the object, the video is inputted from a video input part 1, and only the luminance signal of the video is outputted from the video input part 1, and digital-converted with an A/D converter 3, and stored in a frame memory 4. When the superimposing is performed, data recorded on the frame memory 4 is analog-converted with a D/A converter 5, then, it is frequency-multiplexed with the video of the object at the recording part 6A, and recorded on the video tape. In such a manner, a synthesized video and the original video of the object before synthesis can be reproduced separately.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention enables the tape playback side to obtain an image of only the original (unprocessed raw image) subject, and also to obtain the image of the subject being photographed, handwritten characters, and illustrations. This invention relates to a video recording camera that can play back images by overlapping them.

[Conventional technology]

FIG. 3 is a block composition diagram of a video recording camera equipped with a digital memory function that allows overlapping recording of a handwritten title while recording, for example. 3 is an A/D (analog/digital) converter for video signals; 4 is a frame memory as a storage means; 5 is a D/A (digital/analog) converter; 6 is a recording section as a recording means. .

Next, the operation will be explained. First, a subject image is inputted from a video input section 1 and synthesized into a color video signal, and then level-adjusted by a video amplifier 2 and output as a video signal. Normally, when handwritten characters, illustrations, etc. cannot be superimposed, they are modulated in the recording section 6 and then recorded on the video track of the video tape. However, when superimposing a handwritten image such as handwritten characters or illustrations on the subject image, the handwritten image is inputted from the video input section 1 in advance, and only its luminance signal is output from the video input section l. The luminance signal is digitally converted by the A/D converter 3 and stored in the frame memory 4. Next, when superimposing handwritten images, the frame memory 4
The handwritten video data stored in the camera is converted into analog data by the D/A converter 5, and then input to the video amplifier 2, where it is superimposed with the subject video. The superimposed video signal output is modulated in the recording section 6 and recorded on the video track of the video tape. [Problems to be Solved by the Invention] Conventional video recording cameras are configured as described above, so when handwritten characters, illustrations, etc. are superimposed, the recording unit 6 records the subject image and the handwritten characters. Since combined video signals such as images and illustrations are recorded, there are problems such as the inability to obtain only the original (before combination) image of the subject before being superimposed upon tape playback.

This invention was made to solve the above-mentioned problems, and it is possible to obtain an image in which handwritten characters, illustrations, etc. are superimposed on the subject, and also to reproduce only the original image of the subject, which is the image before the gathering. The aim is to obtain a video recording camera that can.

[Means to solve the problem]

The video recording camera according to the present invention is a recording means that frequency-multiplexes and records images for superimposition such as handwritten characters and illustrations stored in a storage means with a subject image or an audio signal, so that the subject image and handwritten characters can be combined with each other during playback. It is possible to play back a video with illustrations etc. superimposed on it and the original subject video before superimposition.

[For production]

In the video recording camera of the present invention, the recording means separately inputs the image of only the object image and the image of handwritten characters, illustrations, etc., so that the combined image and the original image of the object before the gathering can be recorded separately. Make it playable. [Embodiment of the Invention] An embodiment of the invention will be described below with reference to the drawings. In FIG. 1, the same parts as in FIG. 3 are designated by the same reference numerals. In FIG. 1, 2A is a video amplifier that amplifies only the subject video signal, and 6A is a recording means that can input an analog-converted handwritten video signal. This is the recording section of

Next, the operation will be explained. First, as shown in Fig. 1, a subject image is input from a video input unit 1 serving as a video input means, where it is combined or converted into a color video signal, and then level-adjusted by a video amplifier 2A to become a video signal. .

Normally, when handwritten characters, illustrations, etc. cannot be superimposed, the subject image is modulated in a recording section 6A serving as a recording means, and then recorded on a video track of a videotape. However, when superimposing handwritten characters, illustrations, etc. on the subject video, those images are manually input from the video human power section 1, only the brightness signal thereof is output from the video human power section 1, and the brightness signal is transferred to the A/ The data is digitally converted by a D converter 3 and stored in a frame memory 4 as a storage means. When superimposing data, the data recorded in the frame memory 4 is converted into analog data by the D/A converter 5, and then input to the recording section 6A, where it is frequency-multiplexed with the subject video and recorded on the video tape track. to be recorded.

In the above embodiment, an example was described in which the subject video, handwritten characters, illustrations, etc. were frequency multiplexed and recorded on the video track in the recording unit 6A, but handwritten characters, illustrations, etc. may be frequency multiplexed with the audio signal. It is also possible to record on a sub-track other than the video track. Second
The figure shows an example of the operation in the case of frequency multiplexing and recording on the sub track. As shown in the figure, the subject image is input to the video input section l.
After being manually synthesized into a color video signal, the video amplifier 2A adjusts the level and outputs the video signal, which is modulated in the recording section 6A and then recorded on the video track of the video tape. Here, in order to superimpose handwritten characters, illustrations, etc. on this subject video and play it back,
In advance, those images are inputted from the video input section 1, and their luminance signals are outputted from the video input section 1, converted into digital data by the A/D converter 3, and stored in the frame memory 4. When performing superposition, the memory data is converted into analog data by a D/A converter 5 and then input to a combining section 7 where it is frequency multiplexed with the audio signal 8. The multiplexed signal is modulated in the recording section 6A and recorded on a sub-track other than the video track of the videotape.

〔Effect of the invention〕

As described above, according to the present invention, handwritten characters, illustrations, etc. are frequency-multiplexed and recorded with the subject video or audio signal, so that both videos can be superimposed upon playback, and they can also be superimposed. This has the effect of providing a video recording camera that can reproduce only the subject image before combining.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a video recording camera according to an embodiment of the present invention, Fig. 2 is a block diagram of a video recording camera showing another embodiment of the invention, and Fig. 3 is a block diagram of a conventional video recording camera. It is. In the figure, 1 is a video input section (video input means), 2A is a video amplifier, 4 is a frame memory (storage means), and 6A is a video amplifier.
7 is a recording section (recording means), 7 is a recording section (recording means), and 8 is an audio signal. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] A storage means for storing images for superimposition such as handwritten characters and illustrations; and a storage means for frequency-multiplexing the images for superposition stored in the storage means with a subject image inputted from a video input means and recording them on a video track of a videotape. or a recording means for frequency-multiplexing the stored video for superimposition with an audio signal and recording the same on a sub-track.