KR200287293Y1 - Digital video cassette recorder with new editing function - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs:

Digital camcorder is a technology.

I. The technical challenge the invention is trying to solve:

Digital video cassette recorder with new editing function

All. The gist of the solution of the design:

The present invention facilitates image editing by adding a recording and reproducing mode of 14 μm as well as a recording and reproducing mode of 10 μm which are generally used in a digital video cassette recorder.

la. Important uses of the devise:

Image editing in digital video cassette record

Description

Digital video cassette recorder with new editing function

The present invention relates to an apparatus for digitally recording and reproducing data, and more particularly, to a digital video cassette recorder employing a new editing function in a digital video cassette recorder included in a digital camcorder.

The camcorder not only has a function of a general video camera for photographing a subject but also has a function as a video recorder for recording a photographed subject. By using such a camcorder, a user can photograph and record a desired subject, and can also check a photographed subject later. In this case, the user may view the image of the recorded subject again through the view finder. An image that can be viewed through the viewfinder, that is, an image of a recorded subject, is generally a color image.

The track width of a tape used as a recording medium in a digital video cassette recorder in a digital camcorder is, for example, 10 μm. If 10 μm is used, there is no problem in video recording and playback, but there is a problem when editing an image. . This is especially a problem when accurate image editing is required. This is because the tape is frequently moved back and forth during editing, so it is not easy for the head to read information quickly at a track width of 10 탆. That is, in order to position the tape when the tape is moved back and forth, the control-related information in the outer portion of the tape should be read. In the fast position movement by editing, the 10 占 퐉 head cannot read the control-related information quickly. This makes it difficult to quickly position the head and eventually cannot read the desired information on the tape track quickly.

Accordingly, an object of the present invention is to provide a digital video cassette recorder employing a new editing function for easy editing.

In accordance with the above object, the present invention provides a digital video cassette recorder for facilitating image editing in a digital camcorder, comprising: a first head having a first head width and a second head width at least smaller than the first head width; A head drum having two heads and rotating under a predetermined servo control, a capstan for continuously driving a tape on which information is recorded at a predetermined speed under a predetermined servo control, and a capstan rotation based on a user's function selection in recording mode. A controller for controlling the speed and the head selection of the drum, and controlling the speed of the tape to be selected based on the contents recorded on the tape in the playback mode, and selecting the first head or the second head; Under the control, the first head or the second head of the head drum is selected to be selected, and the capstan rotational speed control of the controller is performed. Digital video cassette recorder with a new editing function, characterized by a servo unit for controlling the running speed of the tape.

1 is a block diagram of a digital video cassette recorder block employing a new editing function according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Since the current digital video cassette record has a track width of 10 mu m, there is a problem in accurate editing when editing. In the present invention, the recording and playback mode having a track width of 14 mu m is added to facilitate editing.

1 is a block diagram of a digital video cassette recorder block employing a new editing function according to an embodiment of the present invention. Referring to FIG. 1, the head drum 18 is provided with heads A and A 'having a head width of 10 µm and heads B and B' having a head width of 14 µm. The function selector 10 is provided with a function select key for selecting either the 10 탆 or 14 탆 head width of the head drum 18 in the recording mode. The microcomputer 12 selects the rotation speed of the capstan 16 and the head drum 18 in accordance with the input condition of the function selection unit 10 in the recording mode. In the playback mode, the tape travel speed and head selection are automatically performed based on the contents recorded on the tape. The servo unit 14 is a block for driving the head drum 18 and the capstan 16. The servo unit 14 receives the servo control signal from the microcomputer 12 to drive the head drum 18 and the capstan 16, controls the head of the head drum 18 to be selected, and controls the rotation speed of the capstan 16. do. It also delivers servo information related to Capstan 16 and Head Drum 18 to Micom 12.

In the recording mode, the user selects the head width of the head drum 18 by using the function selection key provided in the function selector 10. If the user selects a head width of 10 μm, the microcomputer 12 controls the capstan 16 so that the tape traveling speed is 18.812 mm / sec and the head drum 18 is selected such that the heads A and A 'having the head diameter of 10 μm of the head drum 18 are selected. To control. And if the user selects the head width of 14㎛, the microcomputer 12 controls the capstan 16 so that the tape running speed is 24.412mm / sec and the head drum is selected so that the head B, B 'having the head diameter of 14µm of the head drum 18 is selected. 18.

In the playback mode, on the other hand, the microcomputer 12 automatically controls the tape traveling speed and a head having a head width of 10 µm or 14 µm according to the recording contents of the tape. For example, if the recording content (track width) of the tape is recorded at 10 μm, the microcomputer 12 controls the capstan 16 so that the tape traveling speed is 18.812 mm / sec, and has a head A, A 'having a 10 μm head width of the head drum 18. Controls head drum 18 to be selected. If the recording content (track width) of the tape is recorded at 14 μm, the microcomputer 12 controls the capstan 16 so that the tape traveling speed is 24.412 mm / sec, and the heads B and B ′ having the 14 μm head width of the head drum 18 Control head drum 18 to be selected.

As described above, the present invention adds not only the recording and playback mode of 10 µm, but also the recording and playback mode of 14 µm, which are generally used in a digital video cassette recorder, thereby facilitating image editing.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the equivalent of utility model registration claims and utility model registration claims.

Claims (2)

In a digital video cassette recorder for facilitating image editing on a digital camcorder, A head drum having a first head having a first head width and a second head having a second head width at least smaller than the first head width and rotating under predetermined servo control; A capstan which drives the tape on which information is recorded at a constant speed based on a predetermined servo control, In the recording mode, the rotation speed of the capstan and the head selection of the drum are controlled based on the user's function selection, and in the playback mode, the running speed of the tape is determined based on the contents recorded on the tape. A control unit for controlling selection of And a servo unit controlling the first head or the second head of the head drum to be selected based on the head selection control of the controller and controlling the traveling speed of the tape based on the capstan rotational speed control of the controller. Digital video cassette recorder adoption of new editing function to say. In a digital video cassette recorder for facilitating image editing on a digital camcorder, A head drum having a first head having a 10 μm head width and a second head having a 14 μm head width and rotating under predetermined servo control, A capstan which drives the tape on which information is recorded at a constant speed based on a predetermined servo control, In the recording mode, if the user selects the 10 μm head width function, the driving speed of the tape is controlled to be 18.812 mm / sec and the first head is selected. When the user selects the 14 μm head width function, the tape running speed is selected. Is controlled to be 24.412 mm / sec and the second head is selected, and the driving speed of the tape is determined to be 18.812 mm / sec or 24.412 mm / sec based on the track width recorded on the tape in the playback mode. A controller for controlling the first head or the second head to be selected; And a servo unit controlling the first head or the second head of the head drum to be selected based on the head selection control of the controller and controlling the constant speed of the capstan based on the tape running speed control of the controller. Digital video cassette recorder adoption of new editing function to say.