KR100552491B1 - A/V program recording/reproducing apparatus - Google Patents

Abstract

A video signal recording / reproducing apparatus is disclosed. The video signal recording / reproducing apparatus converts a video signal received from a video signal generating source into a predetermined format, records it in a storage device, and reproduces the recorded video signal and outputs it to an external display device. And a control unit for changing the size of a cursor for displaying the reproduction position of the video signal recorded in the storage device according to the reproduction time of the video signal when editing the video signal reproduced by the display device. According to such a video signal recording / reproducing apparatus, when editing a file recorded in the storage device, the size and speed of the cursor to know the progress of the file is determined according to the playback time of the file. By varying, the editor can intuitively grasp the playing time of the file and the editing position of the file according to the size of the cursor.

Gauge Bar, Cursor, MPEG, Hard Disk, Edit Menu

Description

Image recording / reproducing apparatus {A / V program recording / reproducing apparatus}

1 is a block diagram according to an embodiment of a video recording / reproducing apparatus of the present invention;

2 is a plan view of a remote control apparatus for remotely controlling the video recording / reproducing apparatus of FIG. 1; and

3A to 3E illustrate an editing menu displayed on a screen by the controller of FIG. 1 and an application program stored in a flash ROM.

* Description of the symbols for the main parts of the drawings *

10: switching unit 20: MPEG encoder unit

21: video decoder 22: audio A / D converter

23: MPEG encoder 30: hard disk

40: control unit 41: microprocessor

42: cursor setting unit 43: progress speed setting unit

50: flash ROM 60: RAM (Random Access Memory)

70: key input unit 80: decoder unit

81: MPEG Decoder 82: Video Encoder

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording / reproducing apparatus, and more particularly, to an image recording / reproducing apparatus in which an image is easily edited.

As a device for reproducing / recording video signals, video, set-top boxes, and DVD players are used. These devices can reproduce video signals applied from an external input source (e.g., broadcast signal, DVD, CD, etc.) or record them to a storage medium such as a video tape. Conventionally, when editing a video signal stored in a storage medium such as a video tape, a video tape in which a video / audio signal is stored for editing and a video tape, that is, two tapes to be stored after editing, are required. Accordingly, in order to edit the video signal, while watching the video tape on which the video signal is recorded, a desired scene is recorded and recorded on a separate video tape. Due to the characteristics of a video player driven by a motor, it is not easy to accurately edit a desired editing area, and video signals stored in video tapes are usually edited by a professional. Accordingly, the present applicant intends to implement a video recording / reproducing apparatus that can easily edit video signals.

As described above, it is an object of the present invention to provide a video recording / reproducing apparatus which is easy to edit a video signal when editing the video signal.

According to the present invention, a video signal received from a video signal generating source is converted into a predetermined format and recorded in a storage device, and a video recording / playback device capable of reproducing the recorded video signal and outputting it to an external display device. In the case of editing a video signal to be reproduced by the display device, it is achieved by a controller for varying the size of the cursor indicating the reproduction position of the video signal recorded in the storage device according to the total reproduction time of the video signal.

When the control unit edits the video signal to be reproduced by the display device, it is preferable that the speed of the cursor indicating the reproduction position of the video signal recorded in the storage device is varied according to the total reproduction time of the video signal.

The video recording / reproducing apparatus includes a memory for temporarily storing a video signal for editing a video signal, a key input unit for receiving a key input signal for setting an edit position of the video signal when the video signal is edited, and a controller for the video signal. It is preferable that the program memory for storing a program for displaying a menu window for editing the display on the display device.

The controller preferably varies the moving speed of the cursor in response to the double speed change signal applied from the key input unit when editing the video signal reproduced by the display apparatus.

The control unit may include a microprocessor for calculating a reproduction time of the video signal stored in a memory, a cursor setting unit for setting a size of the cursor according to the reproduction time, and feeding the feedback back to the microprocessor, and a moving speed of the cursor according to the reproduction time of the file. And it is preferable to include a speed setting unit for feeding it back to the microprocessor.

The menu window preferably includes an icon which is reproduced in a predetermined size on the display apparatus in response to the key input signal and displays an image signal stored in the storage apparatus.

Preferably, the icon selected by the key input signal includes a reproduction window of a predetermined size reproduced by the display apparatus, and a cursor indicating a reproduction position of the video signal displayed in the reproduction window.

Hereinafter, the present invention will be described in detail with reference to the drawings.

Fig. 1 shows a block diagram according to a preferred embodiment of the video recording / reproducing apparatus of the present invention.

The illustrated video recording / reproducing apparatus includes a switching unit 10, an MPEG encoder unit 20, a hard disk 30, a control unit 40, a flash ROM 50, a RAM 60, a key input unit 70, And a decoder unit 80.

The switching unit 10 receives various video signal sources from the outside, or outputs the video signal sources output from the decoder unit 80 to the outside (for example, a monitor screen). The switching unit 10 receives a broadcast signal, an MPEG signal applied from a medium such as a DVD player (not shown), and a component and composite signal applied from a video (not shown) to record an image. / Optionally connect to the function block in the playback device. For example, when a component or composite signal is applied from video, it is applied to the MPEG encoder unit 20, and when an image signal source of MPEG format is applied from a device such as a DVD player, it is output to the hard disk 30, When a broadcast signal is applied from a receiving device such as a tuner (not shown), it is separated into a video and audio signal.

The MPEG encoder unit 20 converts the analog-digital image from the image signal source applied from the switching unit 10 into an analog form, and then compresses it according to the MPEG format (eg, MPEG-2 format). In general, MPEG video signals are compressed in order to reduce the amount of space stored when they are stored in a storage medium such as the hard disk 30.

The hard disk 30 stores a video signal having an MPEG format in the form of a file. In this case, the video signal source having the MPEG format among the video signal sources applied to the switching unit 10 may be stored as it is. Here, the hard disk 30 is an example of storing the video signal of the MPEG-2 format in the form of a file, the hard disk 30 is MPEG-1, MPEG-2, MPEG-3, and MPEG-4 The format can be stored and is not limited to the MPEG-2 format described in this embodiment. Similarly, in the present embodiment, the MPEG encoder unit 20 and the decoder unit 80 also have been encoded and decoded according to the MPEG-2 format as an example, but in addition to the MPEG-1, MPEG-3, MPEG-4 Can be encoded and decoded.

The controller 40 reproduces or edits the video signal stored in the hard disk 30 and stores the image signal again in the hard disk 30. At this time, the controller 40 changes the size and speed of the cursor indicating the playback position of the video signal stored in the hard disk 30 according to the playback time of the video signal. This will be described later in detail.

The flash ROM 50 stores an operating system and an application program for the video recording / reproducing apparatus. In addition, the flash ROM 50 stores a predetermined application program for displaying a menu for editing on the screen when the controller 40 edits a file stored in the hard disk 30.

The memory (RAM) 60 loads a file when the controller 40 edits a file stored in the hard disk 30. That is, instead of directly editing a file stored in the hard disk 30, the memory is edited in the RAM 60 and then re-stored in the hard disk 30.

The key input unit 70 is a remote control device (not shown) or a setting key (not shown) provided in the video recording / playback device for controlling the video recording / playback device (for example, channel switching, volume control, image quality control, etc.). Receives a control signal generated by the control unit, and receives a speed change signal for changing a playback speed from a remote controller or a setting key when editing a file stored in the hard disk 30 or playing a video signal. In addition, when the file is edited by the controller 40, the key input unit 70 receives information about the edited position of the file and outputs the information to the controller 40.

The decoder 80 receives the MPEG format video signal stored in the hard disk 30 through the control unit 40 and converts the video signal into a video (for example, NTSC / PAL) format. The converted signal can be reproduced in an image display apparatus such as a television.

Preferably, the MPEG encoder unit 20 has a video decoder 21, an audio A / D converter 22, and an MPEG encoder 23.

The video decoder 21 converts an image signal applied through the switching unit 10 into a composite signal having luminance and color difference signals. The audio A / D converter 22 converts the voice signal separated by the switching unit 10 into a digital signal.

The MPEG encoder 23 converts the video and audio signals applied from the video decoder 21 and the audio A / D converter 22 into the MPEG format (eg MPEG-2).

Preferably, the control unit 40 includes a microprocessor 41, a cursor setting unit 42, and a traveling speed setting unit 43.

The microprocessor 41 is in charge of overall control of the video recording / reproducing apparatus and executes an application program stored in the flash ROM 50. In addition, when editing a file stored in the hard disk 30 in response to a control signal applied to the key input unit 70, the file is loaded into the RAM 60 and processed.

When the microprocessor 41 receives a file from the hard disk 30, the cursor setting unit 42 receives a value (play_time) for calculating a total play time of the file from the microprocessor 41 and corresponds to the file. The cursor set value c_size is fed back to the microprocessor 41. The cursor setting value c_size fed back from the cursor setting unit 42 is displayed when the microprocessor 41 divides, combines, or deletes a file stored in the hard disk 30. The size of the cursor indicating the position of the file corresponding to the video signal reproduced on the screen is varied. Here, the size of the cursor is determined by a predetermined operation according to the total reproduction time of the file. Accordingly, when the playback time of the file to be processed in the microprocessor 41 is small, the cursor setting value (c_size) is output to the microprocessor so that the size of the cursor is displayed large, and when the total playback time of the file is large, the size of the cursor is The cursor setting value c_size is output to the microprocessor 41 so that is reduced. Therefore, when editing a file while viewing the file to be played on the screen, the editor can intuitively grasp the playing time of the file and the edit position of the file according to the size of the cursor.

When the microprocessor 41 receives the file from the hard disk 30, the advancing speed setting unit 43 receives a value (play_time) for calculating the total play time of the file from the microprocessor 41, The setting value c_speed for feeding back or lowering the speed of the corresponding cursor is fed back to the microprocessor 41. The microprocessor 41 adds or subtracts the moving speed of the cursor reproduced on the screen according to the setting value c_speed. Here, the advancing speed of the cursor is determined by a predetermined operation according to the reproduction time of the file. In general, when the playback time of a file is large, the progress of the cursor decreases. When the playback time of the file is small, the progress of the cursor increases. However, when the playback time of the file is small, the size of the cursor increases. Even if the playback time is small, the cursor indicating the playback position does not move abruptly.

On the other hand, when the reproduction time of the file is very large or if the file is to be quickly moved to a specific area, the moving speed setting unit 43 outputs the speed change signal c_speed2 from the key input unit 70 to the microprocessor 41. ), And the moving speed of the cursor is changed by the applied double speed change signal (c_spped2). At this time, the speed can be set from 2 times to 128 times, but a slower speed than this, for example, can be set at a speed such as 1/2 times and 1/4 times.

Preferably, the decoder unit 80 has an MPEG decoder 81 and a video encoder 82.

When the MPEG decoder 81 tries to reproduce a video signal stored in the hard disk 30 on the screen, the MPEG decoder 81 receives a compressed video signal according to an MPEG format (for example, MPEG-2 format) from the microprocessor 41 and compresses the video signal. Release it.

The video encoder 82 converts a video signal decompressed by the MPEG decoder 81 into a composite signal composed of a luminance signal and a color difference signal. Accordingly, the signal converted by the video encoder 82 can be connected to a video display device such as a television to watch it.

The video recording / reproducing apparatus configured as described above loads an editing menu according to an application program stored in the flash ROM 50 on the screen of an image display apparatus such as a television, and is generated by a remote control device (not shown) or a setting key. In response to the control signal, a function of the application program is implemented. Hereinafter, the editing function implemented by the present invention will be described in detail.

First, prior to the description, the editing menu will be described with reference to FIG. 2, in which a remote control device which is an external input device of the video recording / reproducing apparatus of the present invention is shown.

In the drawing, reference numeral 100 denotes a remote control device, reference numeral 101 denotes a menu key used for instructing loading and closing of the menu guide list screen, and reference numerals 102, 103, 104, and 105. Indicated parts are left, right, up and down arrow keys used to indicate movement between menus in an edit menu to be described later. Reference numeral 106 denotes an enter key used to select a menu, reference numeral 107 denotes a return key used to return to the previous screen from the current screen, and reference numeral 108 denotes a double speed setting key for changing the reverse speed. Is a key for generating a speed change signal c_speed2, and reference numeral 109 denotes a key for generating a speed change signal c_speed2 as a speed setting key for forward speed change.

The remaining keys are known keys and specific keys for operating a video recording / reproducing device (not shown) and a video display device (not shown) such as a television, and the like, and the keys are displayed through letters displayed adjacent to the key. It is easy to understand, and even if the detailed description of the function of each key is omitted, the detailed description is omitted because it does not interfere with the understanding of the present invention.

3A to 3E illustrate an editing menu displayed on a screen by an application program stored in the controller 40 and the flash ROM 50.

Hereinafter, the editing menu illustrated in FIGS. 3A to 3E will be described with reference to the remote controller illustrated in FIG. 2.

3A shows a menu displayed on the screen when the menu key 101 is pressed.

As shown, the menu screen displays the digital recorder 201, DVD player 202, Juke Box 203, Photo Album 204, and set-up 205 menus. Press with the enter key 103 to display the submenu 210 on the screen.

The submenu 210 may include information about video signals stored in the hard disk 30, for example, a program list menu 211 indicating program information such as a file playback time, a file size, and a storage time, and a specific program. A parental lock menu 212 for setting parental control, an edit menu 213 for editing the stored video signal, and a recording menu 214 are displayed. Here, when the editing menu 213 is selected with the arrow keys 102 to 105 and the enter key 106 is pressed for file editing, a menu as shown in FIG. 3B is displayed.

3B shows a combine menu 221 for selecting a file stored in the hard disk 30 and combining them into one file, a divide menu 222 for dividing a file into two or more, and a hard disk. It has a delete menu 223 for deleting any one of the files stored in 30. Here, the editing process of the present invention will be described based on the combine menu 221, the divide menu 222, and the delete menu 222 of the delete menu 223. do.

FIG. 3C illustrates a submenu that appears when the divide menu 222 is selected in FIG. 3B.

As shown, the divide menu 222 shows a file stored in the hard disk 30 on the screen, and each file is displayed in the form of a predetermined icon. The illustrated icons 221a to 221d represent the first frames to be reproduced when the respective files stored in the hard disk 30 are reproduced on the screen. Menus 230 to 260 displayed at the bottom of the drawing are navigation keys 102 to 105 for moving between icons 221a to 221d, enter key 106 for selecting icons 221a to 221d, respectively. A return key 107 for moving to a higher menu and a menu key 260 for stopping use of an edit menu are shown, and a command required by a user when editing a file is illustrated. Here, after moving to the icon 221d by the direction keys 102 to 105, and pressing the enter key 106, an editing menu as shown in Fig. 3D is displayed.

3D illustrates a submenu screen of the divide menu 222 displayed on the screen when the icon 221d is selected.

Reference numeral A denotes a display window for displaying a file corresponding to the icon 221d on the screen, reference numeral B denotes a gauge bar, and reference numeral C denotes a playback position of a file reproduced on the display window A. FIG. Cursor to display.

Reference numerals 310 and 320 denote icons for the first frame of the divided file when the enter key 240 is pressed in the region where the cursor C is located. That is, the icon 310 is an icon representing the first frame of the selected file, and the icon 320 is an icon representing the first frame of the divided area. Here, the size of the cursor C varies depending on the total reproduction time of the file, but becomes smaller when the reproduction time of the file is large, and becomes larger when the reproduction time of the file is small. On the other hand, when the double speed setting key 108 or 109 is pressed, the speed at which the cursor C moves on the gauge bar B is variable. For example, the moving speed of the cursor C gradually decreases according to the number of times the speed setting key 108 is pressed. On the contrary, the speed of the cursor C gradually increases with the number of times the speed setting key 109 is pressed. As such, the double speed setting keys 108 and 109 speed up the movement of the cursor when the editor wants to find a specific position quickly.

FIG. 3E illustrates a submenu screen of the divide menu 222 displayed on the screen when the icon 221a illustrated in FIG. 3C is selected, and FIG. 3F illustrates the selection of the icon 221c illustrated in FIG. 3C. , A submenu screen of the divide menu 222 displayed on the screen.

In FIG. 3E, reference numeral D denotes a display window displaying a file corresponding to the icon 221a in a predetermined area of the screen, and reference numeral E denotes a file corresponding to the icon 221c in a predetermined area of the screen in FIG. 3F. Displays one display window. Here, the file shown in FIG. 3E is a file having a reproduction time of 30 minutes, and the file shown in FIG. 3F represents a file having a reproduction time of 3 hours.

As shown, it can be seen that the cursors C 'and C "of FIGS. 3E and 3F have different sizes depending on the playback time of the file. Here, if the cursors are the same regardless of the playback time of the file, for example, If the sizes of the cursors shown in FIGS. 3E and 3F are the same, the moving speed of the cursor C 'shown in FIG. 3E should be very fast compared to the cursor C ", but as shown in FIG. As a result, the progress of the cursor does not change significantly compared to the cursor C "shown in Fig. 3f. Therefore, when viewing and editing the screen played on the display window, the editor intuitively controls the playing time of the file opened by the user. It is easy to understand, and the speed of the icon does not change drastically depending on the playback time of the file, making it easy to edit.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the present invention is not limited to the specific embodiments of the present invention without departing from the spirit of the present invention as claimed in the claims. Anyone of ordinary skill in the art can make various modifications, as well as such changes are within the scope of the claims.

As described above, in the video recording / reproducing apparatus employing a hard disk, when the recorded file is edited, the size and speed of the cursor for knowing the progress of the file are determined according to the playback time of the file. By varying the size and speed, editors can intuitively determine the file's playing time and the file's editing position, depending on the size of the cursor.

All.

Claims (7)

A video recording / reproducing apparatus capable of converting a video signal received from a video signal generating source into a predetermined format, recording the same into a storage device, and reproducing the video signal recorded in the storage device to output to an external display device. A memory for temporarily storing the video signal for editing the video signal; A program memory for storing a program for displaying a menu window for editing a video signal temporarily stored in the memory on the display device; And Calculate the total reproduction time of the video signal stored in the memory, reproduce the video signal stored in the memory with the display device, and edit the size of the cursor appearing in the menu window to display the playback position of the video signal. And a control unit that varies according to the total reproduction time of the video signal. The method of claim 1, The control unit, When editing the video signal reproduced by the display device, the speed of the cursor indicating the reproduction position of the video signal recorded in the storage device is varied according to the total reproduction time of the video signal; Recording / Playback Device. The method of claim 2, And a key input unit receiving a key input signal for setting an editing position of the video signal temporarily stored in the memory. The method of claim 3, The control unit, And a moving speed of the cursor in response to a double speed change signal applied from the key input unit when editing the video signal reproduced by the display device. The method of claim 4, wherein The control unit, A microprocessor for calculating a reproduction time of the video signal stored in the memory; A cursor setting unit which sets a size of the cursor according to the reproduction time and feeds it back to the microprocessor; And And a speed setting unit configured to set a moving speed of the cursor according to the playing time of the file and feed it back to the microprocessor. The method of claim 3, The menu window, And an icon which is reproduced in a predetermined size on the display apparatus in response to the key input signal and displays an image signal stored in the storage apparatus. The method of claim 6, The icon selected by the key input signal, A reproduction window of a predetermined size reproduced by the display device; And And a cursor for displaying a playback position of the video signal displayed in the playback window.

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