JPH04237279A - Video cassette - Google Patents

Abstract

PURPOSE:To easily record and reproduce various information relating to a pickup picture stored on a video tape. CONSTITUTION:When a video cassette 10 is loaded to a picture recorder, an IC 16 provided to a cassette main body 14 is connected to the picture recorder via terminals 18a-18e. When still pickup is implemented during movie pickup, since a field recording the still pickup picture is specifically stored in the IC 16, the information stored in the IC 16 is read and the recorded still picture is easily selected and reproduced on a CRT or the like as a visual picture when the picture is reproduced.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides information such as information such as in which field of a videotape a still image taken during movie shooting is recorded on a cassette body that stores the videotape. The present invention relates to a video cassette that can be stored in a circuit provided therein.

0002

[Background Art] Recently, moving images (hereinafter referred to as movies)
Movie cameras have become popular because they can easily take pictures. This movie camera generally emits light from the subject from an optical section with a condensing lens to an image reading section equipped with a CCD, etc., and reads the light photoelectrically. By loading the video cassette after recording the image signal into, for example, an image reproducing device, the image signal is reproduced as a visible image on a CRT or the like.

By the way, when a movie camera of this type is used to take a movie of a subject, there is a demand for capturing a desired still image (hereinafter referred to as still) of the subject. That is, if it becomes possible to perform still photography during movie photography and then continue movie photography, it is possible to obtain desired still reproduction images in addition to continuous movie reproduction images.

0004

[Problems to be Solved by the Invention] In this case, in the above-mentioned movie camera, for example, when a two-hour videotape is used, in order to record 60 fields per second, the image is divided into a total of 432,000 fields. will be recorded. For this reason, when a still is recorded in a field of a portion of a movie photographed image and the still is to be played back, there is a problem in that the task of selecting the field in which the still is recorded becomes considerably difficult.

The present invention is intended to solve this type of problem, and an object thereof is to provide a video cassette that can easily record and reproduce information related to photographed images recorded on a videotape. do.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a cassette body for accommodating a videotape, and a cassette body provided in the cassette body to store information related to images recorded on the videotape. It is characterized by comprising an electrically memorizable circuit and a terminal provided on the cassette body for storing the information in the circuit and for reading the information from the circuit.

[0007]

[Operation] In the video cassette according to the present invention, after the circuit provided in the cassette body is electrically connected to an image recording device etc. via the terminal, movie recording is started on the video tape. During this movie shooting, desired still shooting is selectively performed, and the field in which this still shooting image is recorded is specified and stored in the circuit. After shooting, the video cassette is loaded into, for example, an image playback device, its circuit is electrically connected, and the information stored in the circuit is read, so that the recorded stills can be easily reproduced. is selected and reproduced as a visible image on a CRT or the like.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A video cassette according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a video cassette according to this embodiment. This video cassette 10
A cassette main body 14 that accommodates a video tape 12 that is a magnetic tape, and an IC (integrated circuit) 16 provided in the cassette main body 14 and capable of electrically storing information related to images recorded on the video tape 12. and a terminal 18a provided on the cassette body 14 for connecting the IC 16 to an image recording device and an image reproducing device, which will be described later.
18e to 18e.

The videotape 12 is housed in a roll in a cassette body 14 via rotating shafts 20a, 20b.
An opening/closing lid 22 is attached to allow the end portion of 2 to be led out into an image recording device and an image reproducing device, which will be described later.

FIG. 2 shows a movie camera 24 as an image recording device. The movie camera 24 includes a camera body 26 and a grip 28. The camera body 26 is provided with an optical section 30, a sound collecting microphone 32, and an open/close type strobe light emitting section 34. A video cassette 10 is loaded. The grip 28 is provided with a photographing button 36.

The optical section 30 includes a photographing lens group 38 and an aperture 4.
0, and as shown in FIG. 3, light from the subject is focused through this optical section 30 onto an image reading section 42 having a CCD. An image processing section 44 is connected to this image reading section 42, and an image recording section 46 is connected to this image processing section 44. The image recording section 46 includes a magnetic head (not shown) for recording image signals on the video tape 12 to which the video cassette 10 is attached. The image processing section 44 and the image recording section 46 are connected to a control section 48, and an AE control section 5 for causing the control section 48 to drive the aperture 40.
0 is connected.

The strobe light emitting section 34 is connected to the strobe control section 5.
2 to a control section 48, and the photographing button 36 and data writing section 54 are connected to this control section 48. This data writing section 54 is connected to the camera body 26.
It has a function of inputting information such as the field where still photography was taken, the date and time of photography, and the amount of videotape 12 used to the IC 16 of the cassette body 14.

Next, the operations of the video cassette 10 and movie camera 24 constructed as described above will be explained.

First, the camera body 26 of the movie camera 24
is opened, the video cassette 10 is loaded into the image recording section 46, and the terminal 18 of this video cassette 10 is opened.
a to 18e are connected to terminals (not shown) of the image recording section 46, and the IC 16 is connected to the control section 48. When the photographer holds the grip 28 of the movie camera 24 and operates the shooting button 36, the control unit 4
8 outputs a signal to the AE control section 50 to drive the aperture 40. Next, after the light from the subject passes through the photographing lens group 38 and the aperture 40 that constitute the optical section 30,
The light is irradiated onto the image reading section 42 and read photoelectrically, and then introduced into the image processing section 44 where it is converted into an image signal and introduced into the image recording section 46 .

In this image recording section 46, the opening/closing lid 22 of the video cassette 10 is opened and the end of the video tape 12 is in contact with a magnetic head (not shown), and the video tape 12 is recorded via this magnetic head. The image signal is recorded.

On the other hand, when the photographer selects still photography by operating the shooting button 36 during movie shooting, a signal is supplied from the control section 48 to the strobe control section 52, and the strobe light emitting section 34 is driven to emit light. At the same time, a signal is supplied from the control section 48 to the AE control section 50 to control the aperture 4.
The opening degree of 0 is adjusted. Then, the light from the subject is converted into an image signal via the optical section 30, the image reading section 42, and the image processing section 44, and is supplied to the image recording section 46. recorded in the field.

At this time, movie captured images are continuously recorded on the videotape 12, and still captured images are recorded in a partial field of the movie captured images. Then, the field in which this still photographed image is recorded is specified and introduced from the control section 48 to the image recording section 46, and is stored in the IC 16 of the video cassette 10 through the terminals 18a to 18e of the cassette body 14.

After the image signal of the desired object is recorded on the videotape 12 in this way, information regarding the object,
For example, the date and time of shooting, location, or this videotape 12
The usage amount and the like are input to the control unit 48 via the data writing unit 54 provided in the camera body 26. Furthermore, this information is stored in the IC 16 via the control unit 48.

Next, when the camera body 26 is opened and the video cassette 10 is taken out from the camera body 26, the video cassette 10 is loaded into, for example, an image reproducing device (not shown). At this time, the terminals 18a to 18e of the video cassette 10 are connected to the terminals of the image reproducing device, and the information stored in the IC 16 is displayed on a display section (not shown). Furthermore, the image signal recorded on the videotape 12 is read by a reading head (not shown), and the movie and still images are displayed as visible images on a CRT or the like.

In this case, in this embodiment, images related to still shooting performed during movie shooting are stored on the videotape 12.
The IC 16 stores in which field the information is recorded. Therefore, when a still photographed image is played back by the image reproducing device, the field in which the still photographed image is recorded can be easily and quickly selected, and the still photographed image playback operation can be performed efficiently. This has the effect of In particular, in the case of a videotape 12 capable of recording over a long period of time, the number of fields in which images are recorded increases considerably. This has the advantage of simplifying field selection for still photography at once.

Moreover, various information related to the movie shooting and still shooting are stored in areas other than the videotape 12,
That is, since the image signals are stored in the IC 16 provided in the cassette body 14, even after recording the image signals on the video tape 12, the data writing section 54 of the movie camera 24
The effect is that changing the information or adding new information can be easily and efficiently performed by operating the computer, image reproducing device, or the like. Further, if a non-volatile storage means (for example, E2 PROM) is used for the IC 16, a power source for storing information is not required, and it can be easily mounted on the cassette body 14.

[0023]

[Effects of the Invention] According to the video cassette according to the present invention,
The following effects can be obtained.

When still photography is performed during movie recording, the field in which this still photography image is recorded is specified and stored in a circuit provided in the cassette body of the video cassette, so that when the image is played back, the field in which the still photography image is recorded is stored. By reading the information stored in the circuit, the recorded still is easily selected and reproduced as a visible image on a CRT or the like. Additionally, changing or adding this information is easily and efficiently accomplished through circuitry in the cassette body.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a video cassette according to the present invention.

FIG. 2 is an explanatory diagram of a movie camera loaded with the video cassette.

FIG. 3 is a block diagram of the movie camera.

[Explanation of symbols]

10...Video cassette 12...Video tape 14...Cassette body 16...IC 18a-18e...terminals 24...Movie camera 26...Camera body 30...Optical section 34...Strobe light emitting part 46...Image recording section 48...Control unit 54...Data writing section

Claims (1)

[Claims] Claim 1: A cassette body containing a videotape;
a circuit provided in the cassette body that can electrically store information related to images recorded on the videotape; A video cassette characterized by comprising a terminal for reading out.