KR20000034391A - Method for auto-detecting ring signal in vcd player - Google Patents

Abstract

PURPOSE: A method for auto-detecting ring signal in VCD player is provided to improve functions of a VCD(video compact disk) player by connecting a telephone line to a VCD player and display a ring signal on the screen automatically if the ring signal is detected while playing back a VCD. CONSTITUTION: A method for auto-detecting ring signal in VCD player, which connects a telephone line to a VCD player and displays a ring signal on the screen automatically if the ring signal is detected during playing back a VCD, is disclosed. The method for auto-detecting ring signal in VCD player includes step of detecting the ring signal inputted from an external telephone line during playing back and displaying an image screen of the VCD player(205); step of generating a control signal of ring detection and generating an OSD guiding message corresponding to detection of the ring signal if the ring signal is detected(207,209); and step of displaying the OSD guiding message on the displayed image screen(211).

Description

Ring signal automatic detection method in VCD player

The present invention relates to a video compact disk player, and more particularly, to a method for automatically detecting a ring signal of a video compact disk player suitable for automatically detecting a ring signal in a video compact disk player connected to an external telephone line. It is about.

In general, an optical disk player capable of playing video includes a laser disk player (LDP: Laser Disk Player), a video compact disk player (VCDP), and the like. Video compression technique is used to provide viewers with video and audio by playing optical discs with video and audio data of several gigabytes (GB).

In addition, the video compact disc player as described above has a higher signal-to-noise ratio than conventional video / audio reproducing apparatuses, so that signals can be reproduced with a clearer image / sound quality, and noise due to irregular reproduction and modulation is not generated, and distortion is caused. This is a very small and ghostless, random access (Random Access), a variety of advantages, such as providing a variety of features, such as the accompaniment feature is rapidly developing and widely spread .

In addition, such a video compact disc player provides various additional functions for the user's convenience. If the video compact disc player is playing a video compact disc, if a ring signal is transmitted from the outside via a telephone line, it is automatically Being able to detect and display on the screen will not only enhance the functionality of the video compact disc player, but also meet the needs of a wider variety of users.

Accordingly, the present invention is made in view of the above-mentioned point, and by connecting a telephone line to a video compact disc player, if a ring signal is detected during playback of a video compact disc, the video compact can be displayed on the screen automatically. It is an object of the present invention to provide a ring signal automatic detection method of a disc player.

In order to achieve the above object, the present invention provides a method for automatically detecting and displaying a ring signal in a VCD player having an on-screen display (OSD) function, wherein an external image is displayed while playing and displaying a video screen of the VCD player. Detecting a ring signal input from a telephone line; If the ring signal is detected, generating a ring detection control signal to generate an OSD guide message corresponding to ring signal detection; And a third step of displaying the generated OSD guide message on the displayed video screen.

1 is a block diagram of a video compact disc player suitable for applying a ring signal automatic detection method according to a preferred embodiment of the present invention;

2 is a flowchart illustrating a ring signal automatic detection process in a video compact disc play according to a preferred embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

10: drive unit and optical pickup unit 20: digital signal processing unit

30: control unit 40: MPEG decoder

50: OSD processing unit 60: Video signal processing unit

70 display unit 80 ring signal detection unit

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

1 is a block diagram of a video compact disc player suitable for applying a ring signal automatic detection method in a video compact disc player according to a preferred embodiment of the present invention, including a driving unit, an optical pickup unit 10, and a digital signal processing unit ( 20), a control unit 30, an MPEG decoder 40, an OSD processing unit 50, a video signal processing unit 60, a display unit 70, and a ring signal detection unit 80.

Referring to the drawings, the driving unit and the optical pickup unit 10 drive the motor (not shown) under the control of the control unit 30 to be described later, and perform optical pick-up so that the image and audio data recorded on the optical disk are recorded. The digital signal processor 20 reads the MPEG decoder 40 to be described later through a digital signal processing process including error detection and error correction on the image and / or audio data output from the driver and the optical pickup unit 10. Will print).

The video and audio signals output from the MPEG decoder 40 are decoded based on the MPEG compression format, and the video signal processor 60 converts the decoded video signals into R, G, and B color signals and composite video. The signal is converted into a signal and displayed on the screen through the display unit 70. In addition, the video signal processor 60 may output an OSD screen including various menu screens provided from the OSD processor 50, which will be described later, mixed with the composite video signal of the video compact disc.

On the other hand, the ring signal detector 80 is connected to the telephone line (L81) connected to the external general telephone network, when the ring signal is detected, generates a corresponding ring detection signal to provide to the controller 30. The controller 30 generates various control signals for controlling the overall operation of the video compact disc player as described above, and in particular, when the ring detection signal is provided through the ring signal detector 80, the ring signal is responsive to the ring signal. A control signal for displaying a guide message of a predetermined type according to the detection is generated and provided to the OSD processor 50.

In this case, the OSD processing unit 50 configures a predetermined guide message (for example, 'a call has come') according to the detection of the ring signal based on the control signal provided from the control unit 30 as OSD screen information to configure the video signal processing unit ( 60), a guidance message according to the detection of the ring signal is displayed on the video screen of the currently displayed video compact disc, so that the user can recognize it.

In addition, the above-described ring signal detection unit 80 blocks the ring signal transmitted from the telephone line or lifts the handset of the telephone (not shown) while the user displays a certain type of guidance message on the screen as described above. If so, the ring release signal is generated and provided to the controller 30.

In this case, the controller 30 blocks driving of the OSD processor 50 based on the ring release signal provided from the ring signal detector 80 to turn off the guide message displayed on the screen.

FIG. 2 is a flowchart illustrating a ring signal automatic detection process in a video compact disc play according to a preferred embodiment of the present invention. The overall operation of each configuration means as described above will be described in detail as follows.

While the overall operating state of the video compact disc player configured as shown in FIG. 1 operates in a playback mode in which the video and audio signals recorded on the video compact disc are read out and displayed on the screen through a predetermined signal processing (step 201), the ring The signal detector 80 continues to check whether a ring signal is transmitted from the telephone line L81 connected to the outside (step 203).

At this time, if a ring signal is detected (step 205), the ring signal detection unit 80 generates a corresponding ring detection signal and provides it to the control unit 30 (step 207), and the control unit 30 receives the ring detection signal. In response, an OSD control signal for displaying an OSD guidance message is generated to the OSD processing unit 50 (step 209).

In addition, the OSD processing unit 50 generates guide message information according to the ring signal detection in response to the control signal of the control unit 30 and provides the information to the video signal processing unit 60. The video signal processing unit 60 includes an OSD processing unit ( By combining the guidance message information provided from 50) with the video screen of the currently displayed video compact disc, the video message of the video compact disc on which the guidance message (for example, 'call came') according to the ring signal is currently played is reproduced. The display is superimposed on the screen (step 211).

When the ring signal is released while the guide message indicating that the call is coming from the outside through the above-described process is displayed on the screen, that is, the user answers the call or stops transmitting the ring signal, the ring signal signal detector 80 If the ring signal is not detected from the control unit (step 213), the controller 30 generates a message blocking control signal to the OSD processing unit 50 to turn off the guide message output on the current screen through the above-described step 211. (Step 215), the overall operation of the video compact disc player is switched to the normal playback mode as in step 201 described above (step 217).

As a result, when a ring signal is input during the play mode of the video compact disc player, it is automatically detected and a guide message is displayed so that the user can recognize it.

As described above, according to the present invention, a video compact disc is automatically detected by displaying a ring signal input from a telephone line while displaying and displaying a guidance message on the screen while playing and displaying a general video compact disc in a video compact disc player. There is an effect that can improve the overall function of the player, thereby satisfying the needs of a wider variety of users.

Claims (2)

A method of automatically detecting and displaying a ring signal in a VCD player having an on screen display (OSD) function, A first step of detecting a ring signal input from an external telephone line while playing and displaying a video screen of the VCD player; If the ring signal is detected, generating a ring detection control signal to generate an OSD guide message corresponding to ring signal detection; And a third step of displaying the generated OSD guidance message on the displayed video screen. The method of claim 1, wherein the detecting of the ring signal in the state in which the OSD guide message is displayed is performed by turning off the displayed OSD guide message and repeating the process after the first step. Ring signal automatic detection method in the VCD player further comprising.