KR970004295B1 - Operation status displaying system in disc player - Google Patents

Abstract

According as screen display signal outputted from microcomputer(24) is fed to the internal video generating circuit(26) and a video switching signal is impressed to video switching part(32), the internal video generating circuit(26) signs the OSD character information meaning tray-loading operation with video and outputs it. The screen of video switching part(32) is switched to output the OSD character from the internal video generating circuit(26). The OSD showing tray-loading operation outputted through the video switching part(32) is displayed in switching form on the monitor.

Description

Disc player operation status display device

1 is a block diagram of an apparatus for displaying an operation state of a disc player according to the present invention.

FIG. 2 is a diagram showing an operation state of a disc player displayed on the monitor of FIG.

(A) is a diagram showing the tray loading according to the disc insertion.

(B) is a diagram showing the drive of the spindle motor after the completion of the loading and the resulting change in sowing.

(C) shows a state in which the TOC area data and the target track are searched by the optical pickup apparatus.

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

10 tray drive 12 spindle servo

10: pickup servo 16: frequency generator

18: Deck mechanism 20: High Frequency Amplifier

22: control signal decoder 24: microcomputer

26: internal image generating circuit 28: image processing circuit

30: audio processing circuit 32: video switching unit

34: monitor 36: speaker

38: video / audio signal processing means

The present invention relates to an apparatus for displaying an operation state of a disc player, and in particular, an OSD (On Screen Displsy: Subtitle Information Display) character is used on a monitor to display a deck operation state until a video is played during disc loading when a disc is inserted into the disc player. An apparatus for displaying an operation state of a disc player to be displayed.

Currently, the commercialized and sold disc player reads the video and audio data stored in the laser disc (LD) or the compact disc graphic (CD-G) by the pickup and transfer device to reproduce the image. When the desired disk is loaded in the tray, the tray is loaded and the disk is seated on the tentable. Therefore, when the rotation speed of the spindle motor reaches approximately 1,800 rpm by the spindle servo for rotating the spindle motor at a constant speed, the optical pickup device is moved to the TOC (Table Of Cotent) area of the disc by the pickup transfer motor. Move to and read information about the disc recorded in the TOC area, and then move to a desired track to reproduce the video.

However, the above-described disc player cannot check the operation state until the disc is loaded and the image is reproduced. Therefore, a problem arises in that the user waits tediously before the desired image is reproduced on the monitor.

Accordingly, the present invention has been made to solve the above problems, and its object is to display the deck operation state of the disc player until the image playback on the monitor by using OSD characters on the monitor so that the user can check the operation state of the disc player. The present invention provides an apparatus for displaying an operation state of a disc player.

In order to achieve the above object, an apparatus for displaying an operation state of a disc player according to the present invention includes a video / audio signal processing means for processing and reproducing video and audio information on the disc which is read by an optical pickup apparatus after the disc is loaded. And a disc player for disc playering the video signal from the video / audio signal processing means and a speaker for outputting the audio signal from the video / audio signal processing means. Using the control signal decoder to decode the control signal output from the high frequency amplifier, the rotational speed of the spindle motor is calculated using the frequency components from the frequency generator to the video / audio signal processing means, and the tray is driven to reproduce the image. Tray drive, spindle motor drive and target track search The display signal according to the control signal decoded by the control signal decoder and the microcomputer for outputting the corresponding screen switching signal, and the OSD characters from the tray drive to the image reproduction are stored and displayed on the monitor. And an image conversion unit for outputting a corresponding OSD character, and an image switching unit for switching the screen according to the screen switching signal from the microcomputer.

According to the present invention configured as described above, the operation state of the disc player from tray loading to image reproduction as the user mounts the disc in the tray is disc-played on the monitor according to the screen switching signal and the screen display signal from the microcomputer.

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

1 is a block diagram of an apparatus for displaying an operation state of a disc player according to the present invention, and reference numeral 10 denotes a tray open on a remote control or a deck for mounting a disc desired by the user to a tray and seating on a tentable. (Close) is a tray driver which performs the unloading or loading operation of the tray in response to the tray drive signal from the microcomputer 24 according to the close butt operation. After being seated, the spindle servo is configured to maintain the rotational speed of the spindle motor at a constant speed of approximately 1,800 rpm according to the spindle motor driving signal from the microcomputer 24, and 14 is the rotational speed of the spindle motor by the spindle servo 12. Maintains the constant speed, the optical pickup device is moved in accordance with the pickup transfer signal output from the microcomputer 24, Pick-up servo to read the beam. 16 is a frequency generation for detecting the number of revolutions of the spindle motor performed by the spindle servo 12 and converting the frequency into a frequency component, and 18 is an operation of the tray driver 10, the spindle servo 12, and the pickup servo 14. Is a deck mechanism for outputting a control signal representing an operation being performed at the same time, and 20 amplifies the control signal from the deck mechanism 18 and amplifies information on the disc read by the optically-updup apparatus. It is a high frequency amplifier.

In the figure, 22 is a control signal decoder for decoding the control signal output from the high frequency amplifier 20, 24 is the frequency component output from the frequency generator 16 while controlling the operation of the entire apparatus is the rotation of the spindle motor In addition to calculating the speed, the pickup and transfer signal for moving the optical pickup device to the TOC area on the disk where the tray drive signal address information is recorded and the program area where music and image information is recorded so that the tray can be unloaded or loaded. The control signal decoder outputs the spindle motor drive signal so that the spindle motor can be driven, and the tray drive, spindle motor drive, and target track search operation are displayed on the monitor 34 until the tray is driven to reproduce an image. On-screen display signal according to the control signal decoded in (22) (i.e. OSD character information stored in the internal image generating circuit 26) Of the address signal), and a microcomputer for outputting the display switching signal. 26 is an internal image generating circuit which stores OSD characters from tray driving to image reproduction and outputs the corresponding OSD characters according to the screen display signal from the microcomputer 24, and 28 is an amplification output from the high frequency amplifier 20. An image processing circuit extracts the image information from the information on the disc and processes the image signal, and 30 denotes an audio processing circuit for extracting the speech information from the information on the disc amplified by the high frequency amplifier 20 and processing the audio signal. 32 is an image switching unit for switching the screen in accordance with the screen switching signal from the microcomputer 24.

According to a preferred aspect of the present invention, 34 indicates that the video signal from the image processing circuit 28 through the video switching unit 32 is displayed, as well as the video signal indicating the operation state of the video player disc is flashing. Display, wherein the spindle motor is mounted as shown in FIG. 2 (a) when the user loads a disc that the user desires to watch on the tray as shown in FIG. Is displayed in the form of flashing OSD characters, and the speed change process until the spindle motor reaches constant speed, for example, 1,800 rpm, is displayed in the form of a graph bar, and the spindle motor maintains constant speed. As the optical pickup device is moved to search for a target track, as shown in FIG. 2 (c), the optical pickup device By OSD it is displayed in a character form of the target track and the affection navigation flashing. 36 is a speaker for amplifying and outputting a voice signal applied from the voice processing circuit 30.

Meanwhile, according to a preferred embodiment of the present invention, instead of a method of displaying OSD characters on the monitor 34 to indicate an operation state of the disc player, a separate fluorescent display tube is installed on the deck to light up the shape display tube. As a state, it is also possible to check the operation state of the disc player.

The operation state display method by the operation state display apparatus of the disc player according to the present invention configured as described above is as follows.

In FIG. 1, once the user manipulates the tray open / close button on the remote control or deck to mount a disc desired to be watched on the tray, the microcomputer 24 outputs a tray open signal, and thus the tray driver ( 10) eject the tray toward the front of the deck. Subsequently, when the disc is mounted on the tray and the tray open / close button is operated by the user again, the microcomputer 24 outputs a tray insertion signal. Accordingly, the tray driving unit 10 loads the tray into the deck, and the deck mechanism 18 outputs a control signal indicating that the tray is currently being loaded. The amplified output decodes the control signal from the deck mechanism 18 and outputs it. Thereafter, the microcomputer 24 outputs a screen display signal and a screen switching signal according to the decoding signal from the control signal decoder 22.

As such, the screen display signal output from the microcomputer 24 is applied to the internal image generating circuit 26 and the screen switching signal is applied to the image switching unit 32, thereby indicating a trading operation in the internal image generating circuit 26. The OSD character information is converted into an image signal and output, and the image switching unit 32 switches the screen to output the OSD character from the financial image generating circuit 26. Subsequently, on the monitor 34, an OSD character indicating a trade loading operation outputted through the image switching unit 32 is displayed in the form of blinking as shown in FIG.

After the tray loading is completed as described above, the spindle motor driving signal is output from the microcomputer 24, and the spindle motor 12 is driven by the spindle servo 12 to maintain a constant speed of approximately 1,800 rpm. Accordingly, the frequency generator 16 detects the number of revolutions of the spindle motor driven by the spindle servo 12 and converts the rotational frequency into frequency components, and the deck mechanism 18 provides a control signal indicating that the spindle motor is currently being driven. The control signal decoder 22 decodes and outputs the control signal from the deck mechanism 18 amplified by the high frequency amplifier 20. Thereafter, the microcomputer 24 calculates the rotational speed of the spindle motor using the frequency component output from the frequency generator 16, and also displays the screen display signal and the screen switching according to the decoding signal output from the control signal decoder 22. Will output a signal. Subsequently, as the screen display signal output from the microcomputer 24 is applied to the internal image generation circuit 26 and the screen switching signal is applied to the image switching unit 32, the internal image generation circuit 26 performs the spindle motor driving operation. The OSD character information indicating the image signal is outputted and the image switching unit 32 switches the screen in order to output the OSD character from the internal image generation circuit 26. Subsequently, on the monitor 34, as shown in FIG. 2 (b), an OSD character indicating the spindle motor driving operation is alternated through the image switching unit 32 to be a disk player, and at the same time, a spindle calculated by the microcomputer 24. The rotation speed of the motor is displayed and the graph bar indicating the changing rotation speed flashes from left to right to play the disc.

When the graph bar reaches the final stage on the right side, the spindle motor maintains the constant speed, so the microcomputer 24 outputs a pickup transfer signal, and the pickup servo 14 picks up a pickup transfer signal from the microcomputer 24. As a result, the optical pickup device is moved to the TOC area of the disc. The deck mechanism 18 outputs a control signal indicating that the optical pickup device is currently reading information of the TOC area on the disc and moving to a desired track, and the control signal decoder 22 is a high frequency amplifier 20. Decode and output the control signal from the deck mechanism 18 is amplified. Thereafter, the microcomputer 24 outputs a screen display signal and a screen switching signal according to the decoding signal from the control signal decoder 22. Subsequently, as the screen display signal output from the microcomputer 24 is transferred to the internal image generating circuit 26 and the screen switching signal is applied to the image switching unit 32, the internal image generating circuit 26 performs the target track search operation. The displayed OSD text information is converted into an output signal, and the image switching unit 32 switches the screen to output the OSD text from the internal image generating circuit 26. Thereafter, on the monitor 34, an OSD character indicating an operation of searching for a target track on the disc by the optical pickup device output through the image switching unit 32 flashes as shown in FIG. 2 (C). Is displayed.

When the optical pickup device accesses the target track of the disc that the user desires to watch by the above operation, the deck mechanism 18 outputs a control signal indicating that the current image is being played. Image and audio information read out through the optical pickup device is amplified and output from the high frequency amplifier 20 and the control signal decoder 22 amplifies and outputs the control signal from the deck mechanism 18 amplified and output from the high frequency amplifier 20. Decode and output. After that, the microcomputer 24 outputs a screen switching signal in accordance with the decoding signal from the control signal decoder 22. Subsequently, since the image and audio information amplified and output from the high frequency amplifier 20 are converted into image and audio signals by the image processing circuit 28 and the audio processing circuit 30, the image signal is monitored through the image switching unit 32. The disc is played on 43 and the audio signal is amplified and output through the speaker 36.

As described above, according to the operation state display apparatus of the disc player according to the present invention, as the user mounts the disc on the tray, the disc loading in the form of OSD characters such that the tray loading operation, the spindle motor driving operation, and the target track search operation blink on the monitor. As a result, the operation state of the disc player is much more clearly displayed than the simple operation display OSD character appearing on the conventional monitor, and the waiting time for the image to be played is not boring.

Claims (1)

A video / audio signal processing means 38 for signal-processing and reproducing the video and audio information on the disk read by the optical pickup apparatus after the disk is loaded, and the video signal from the video / audio signal processing means 38 A disk player having a monitor 34 for disc-playing and a speaker 36 for outputting an audio signal from the video / audio signal processing means 38, wherein the high frequency in the video / audio signal processing means 38 is provided. The rotational speed of the spindle motor is calculated using the control signal decoder 22 for decoding the control signal output from the amplifier 20 and the frequency components from the frequency generator 16 in the video / audio signal processing means 38. In addition, the control signal decoder 22 displays a tray drive, a spindle motor drive, and a target track search operation on the monitor 34 until the tray is driven to reproduce an image. On-screen display signal according to the coded control signal and the microcomputer 24 for outputting the corresponding screen switching signal, the OSD character from the tray drive to the image playback is stored, and the OSD character according to the screen display signal from the microcomputer 24 An internal image generating circuit 26 for outputting a signal and an image switching unit 32 for switching the screen according to the screen switching signal from the microcomputer 24; Device.