JPS62212967A - Information signal reproducing device - Google Patents

Abstract

PURPOSE:To forecast the starting time of reproducing of the tape out time of a disk by a user by monitoring the process of operation in the internal part of an information reproducing device with a picture. CONSTITUTION:An initial shifting time t1 until a pick-up arm 4 arrives from a standby position Z to a point X is determined clearly by the rotating speed of an arm sending motor, for a time t2 necessary when the arm is shifted from an X point to an A point, the address code of an X point compares the code and the address code of the A point by a position designating key 7, the difference is converted to the time in accordance with the speed of a motor, thereby, obtaining the time data to index the time t2. When a reproducing starting key is pushed and a reproducing starting position is designated, the time (t1+t2) necessary until the pick-up arm 4 is shifted from the X point to the A point is instantaneously by a microcomputer 13 for displaying and on the monitoring picture, the image to display the prescribed number of horizontal bars 28 appears. When the pick-up arm 4 arrives at the A point, the displaying is executed by a recording signal.

Description

[Detailed Description of the Invention] FObject of the Invention (Industrial Field of Application) The present invention relates to a video disc player, a video tape player, etc.
The present invention relates to an information signal reproducing apparatus such as an information signal reproducing apparatus that allows the user to visually recognize the progress of operations at the start and end of reproduction.

(Prior Art) Generally, a device for reproducing a signal recorded on a recording medium has a period of time during which the mechanism of each part performs a specified operation at the start and end of reproduction, and a period during which reproduction is not performed and when the recording medium is There will be times when collection cannot be performed.

For example, in a recording disk playback device such as a video disk player, when starting playback, insert the recording disk (hereinafter referred to as the disk) into the disk, press the playback start key, and then press the shutter of the disk insertion slot. (Some devices automatically start playback), it takes more than 10 seconds for the image based on the recording signal to be displayed on the monitor display device. Furthermore, at the end of playback, it takes time for the disk to move to a specified position within the apparatus from which it can be taken out after pressing the disk eject key (playback end key). The operations during these periods will hereinafter be referred to as load operations and unload operations.

Once the playback device enters each of the operating states described above, it is naturally impossible to insert another disc, so
In conventional video disc players, the content of the screen, for example, the display color, is changed to allow the user to distinguish between an empty state of a disc in the device and a state of loading and unloading the disc.

FIG. 6 shows the screen of a monitor display device in a video disc player which displays as described above.

In this figure, (a) to (d) show monitor screens for loading operations, and (e) to (g) show monitor screens for unloading operations. In addition, the blinking display shown on the right side of each screen is an LED (electroluminescent diode) on the upper side indicating that the disc can be inserted.
The lower part is an indicator lamp indicating that the disc can be removed, and its lit state indicates that the disc can be removed.

(a> is the stage where the power is turned on and the disk can be inserted. At this time, the screen is displayed in solid green, and the upper indicator lamp lights up to indicate that the disk can be inserted. When the disk is inserted, , as shown in (b), blue-
The color will be displayed. At this time, the upper indicator lamp goes out and
By illuminating the lower indicator lamp, the user knows that although the disc can still be removed, another disc cannot be inserted. Note that the numbers at the right corner of the screen are used to identify the first and second sides of the disc. As this loading operation progresses further, the display on the screen remains blue, but the lower indicator lamp changes from lit to off, indicating that the disc cannot be removed. This corresponds to the fact that the signal pickup arm is moving from the standby position to the disk side (loading operation). (See FIG. 6C) Then, in step (d), a playback screen based on the disc signal is displayed.

To end playback, make sure the playback screen is displayed (e
) transitions to state (f) and becomes an unload state. At this time, the screen turns blue.

This state continues for a while, and when a message indicating that the disc can be recovered is finally displayed, the unloading operation is completed and the disc can be removed from the apparatus. After the disc is removed in this way, the screen returns to the solid green screen shown in (a).

According to the screen display as shown in FIG. 6, for example, from (b) to (
The screen content remains blue and the same until the loading operation in d) is completed. Also, the color is blue until the unloading operation from (f> to (g)) is completed.Such loading and unloading periods usually take several tens of seconds, and it is difficult to play from the middle of the disc. If the playback ends midway, it will take longer than that.As a result, the user will be left waiting for a long time, and may be unsure whether the desired action is actually being performed, and may have to confirm it. The problem is that I can't.

(Problem to be Solved by the Invention) Conventionally, there was a problem in that during loading and unloading periods, it was possible to check whether a disk was present in the device, but it was not possible to check the progress of the operation. .

SUMMARY OF THE INVENTION An object of the present invention is to provide an information signal reproducing device that eliminates the above-mentioned problems and allows a user to recognize the progress of loading and unloading operations.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a method in which the signal pickup means at the start of playback is approaching a target playback position, and the recording medium can be removed at the end of playback. The present invention is characterized in that an appropriate character in which the number of numbers, symbols, etc., or the length of the symbol changes is generated and displayed on a monitor to allow the outside to recognize that the vehicle is approaching a certain position. .

(Function) In the information signal reproducing device, the signal pickup means:
When a playback start request is received, the playback unit moves from a predetermined standby position to a specified playback position, for example, in the case of normal playback without specifying an intermediate position, it moves closer to the beginning position of the signal recording section of the recording medium. Further, when there is a request to end reproduction, the reproduction position is returned to the standby position. The operation progress indicator means according to the present invention has a character generation means, and calculates the time required for the signal pickup means to move from the standby position to the first position by calculation when a reproduction start request is received, for example, and By decreasing or increasing the number of characters output from the character generating means in accordance with the above, it is possible to pseudo-display that the signal pickup means is operating and make the user aware of the fact that the signal pickup means is operating.

(Example) The present invention will be described below with reference to the illustrated embodiments.

FIG. 1 is a block circuit diagram showing an embodiment of an information signal reproducing device according to the present invention.

In this figure, 1 indicates the main body of the playback device. This playback device main body 1 is capable of inserting and removing a disc 2 from the disc insertion slot side 1a, and the inserted disc 2 is
It can be fixed on a turntable (path shown) driven by a power signal from a drive circuit 3. A pickup arm 4 that moves in a radial direction with respect to the disc 2 on the turntable is disposed,
The signal recorded on the disc 2 can be picked up by a sensor such as a reproducing needle built into the arm 4. The disc 2 has recorded information as well as an address signal for this information and a signal for tracking, and the playback device main body 1 determines whether or not the disc 2 is present at the disc insertion slot side 1a.

A detector 5 (typically 1
), various operation keys 6 including a playback start key and a playback end key, a position designation key 7 for specifying the playback start position and playback end position by specifying a chapter or page number, and the pickup arm 4 are in the standby position. means for detecting whether or not it is present and generating an arm position signal indicated by the dotted line =9-, and an LED 8a corresponding to the indicator lamp described in FIG.

8b is provided. Incidentally, the tracking of the sensor in the pickup arm 4 is controlled by a signal from the tracking circuit 11.

On the other hand, reference numeral 9 denotes a central processing unit composed of a control microcomputer 10 (hereinafter referred to as a control microcomputer), a display microcomputer 13 (hereinafter referred to as a display microcomputer), and a data processing circuit 12. Further, 14 is a signal processing circuit which inputs the signal picked up from the sensor of the pickup arm 4 and processes the video and audio signals. The information is displayed on a screen by means of a monitor (not shown). Further, the signal processing circuit 14 also outputs an address signal recorded on the disk 2 based on the signal from the sensor.

The data processing circuit 12 inputs the reproduction synchronization signal and address signal from the signal processing circuit, and outputs the address signal recorded in a predetermined horizontal scanning period to the pass line 16.
is converted into code data via the control microcomputer 10.
and the display microcomputer 13.

This pass line 16 allows the control microcomputer 10 and the display microcomputer 13 to exchange data.

The control microcomputer 10 is supplied with an operating clock signal from the synchronizing signal generating circuit 17, and is made to know whether the disk 2 is inserted or removed by the signal 5a from the detection switch 5. Further, the control microcomputer 10 stores a program for sequentially controlling the pickup arm 4 and the like, and the microcomputer 13 for displaying the key person Kaline 182. Then, data specifying a playback start position based on the position specifying key 7 (particularly when playing from an intermediate position) is input via the pass line 16.

The display microcomputer 13 receives the arm position signal.

Signals such as a disc side detection signal, a playback start request signal and a playback end request signal generated by the operation key 6 are inputted through the key human power line 18, and the control data line 19. which is connected to the control microcomputer 10. and 20. The line 19 is a line for sending data to the control mine 10, and leads to control data corresponding to each of the request signals and the arm position signal. Based on the control data from this line 19, the control microcomputer 1
0 supplies a driving signal to the arm feed circuit 22 via a line 21. Further, the line 20 is connected to the disk 2
The control microcomputer 10 receives the signal 5a that detects the insertion/handling of the
The signal generated from the display microcomputer 13 is guided to the display microcomputer 13, and the display microcomputer 13 can control the character generator 24 via the line 23. That is,
The character generator 24 is controlled to generate an image signal to turn the monitor screen green when the disc 2 is not in the playback main body 1, and the pickup arm 4 is controlled when the disc 2 is in the playback main body 1. A display control signal is supplied to the character generator 24 to generate a character signal for displaying an action suitable for representing the action in a pseudo manner. Disc 2 is playback device main body 1
The display control signal when present within the screen causes the background color of the screen to be blue and generates the action display character as a superimposed image thereof.

When displaying a green screen and during a period when displaying a blue screen, the character generator 24 selects the reproduced synchronization signal from the synchronization signal generation circuit 17 using the switching circuit 25, and selects the reproduced synchronization signal from the synchronization signal generation circuit 17 via the synchronization signal separation circuit 26. Horizontal (H) and vertical (V) synchronization signals are obtained, and during the period for displaying the character, horizontal and vertical synchronization signals are obtained using the synchronization signal from the signal processing circuit 14.

Furthermore, the display microcomputer 13 includes a memory and an arithmetic circuit.

It has a counter (not shown). The memory stores, as reference data, for example, start position data indicating the leading position of the signal recording portion of the disc 2, and initial movement time information required for the pickup arm 4 to move between this leading position and the standby position. There is. When there is a reproduction start request, the arithmetic circuit calculates the difference between the reproduction position designation data from the key human power line 18 and the start position data, and from the time when the reproduction start request is received, the pickup arm 4
The time required for the playback to reach the desired playback position is calculated. The counter counts the time data obtained by the above calculation. On the other hand, each circuit of the display microcomputer 13 is configured to perform the same operation even if a reproduction end request is rarely made. Note that the display memory 13 can also be operated by a reproduction start request signal from the remote control input processing circuit 27 or by reproduction position designation data.

The image signal from the character generator 24 is displayed on a monitor screen via a synthesis circuit 15. Further, the display microcomputer 13 receives the side detection signal and causes the character generator 24 to generate predetermined numerical characters. Furthermore, the LED display signal is transmitted to the detection switch 5.
The LEDs 8a and 8b are driven according to the signal 5a.

This embodiment is configured as described above, and its operation is then explained in the second section.
This will be explained with reference to FIGS.

In FIG. 2, point Z is the standby position of the pickup arm 4, and point X is the beginning position of the signal recording section.

Point A indicates the midway position of the signal recording section, and point Y indicates the recording end position.

In this embodiment, the initial movement time for the pickup arm 4 to reach the starting point X of the signal recording section from the standby position Z, the time to move from point The user is made to recognize that the pickup arm 4 is approaching the desired position by generating a character indicating the number of numbers or symbols or the length of the symbol and displaying it on the monitor screen. It is something.

FIGS. 3 and 4 are explanatory diagrams showing how the monitor screen changes during the above operation process.

(1) When starting playback First, before the disc 2 is inserted, the monitor screen displays green as shown in FIG. 3(a). When the disc 2 is inserted, the display on one screen of the monitor turns blue, and the side display value based on the side detection signal is displayed in the upper right corner. This number is limited to being displayed in a small size in the upper right corner; for example, it may be displayed in a large size in the center of the screen and then gradually displayed in a smaller size in a predetermined corner.

Suppose now that you wish to play from point A.

In this case, the pickup arm 4 traces the progress from the Z position, passes through the X point, and reaches the A point.

When the disc 2 is inserted into the main body 1 of the playback apparatus, the pickup arm 4 is at the standby position Z, and upon receiving a request to start playback, the pickup arm 4 moves in the direction of the arrow.

The initial movement time t1 for the pickup arm 4 to reach the point X from the standby position Z is uniquely determined by the rotational speed of the arm feed motor, and may be stored in the memory of the display microcomputer 13.

In addition, since the address code of point X is known in advance, the time t2 required to move from point By converting into time according to the speed of the motor 9, time data indicating time t2 can be obtained.

In this way, when the playback start key is pressed and the playback start position is specified, the time (t1+t2) required for the pickup arm 4 to move from point X to point A is instantly calculated by the display microcomputer 13. . Therefore, t1+t2
The number of numbers and symbols to be displayed, or the length of the symbols, is determined according to the size of For example, a horizontal bar 28 (as shown in FIG. 3(C))
An image displaying a predetermined number of characters (action display characters) appears.

Furthermore, the display microcomputer 13 counts the time t1+t2, and supplies a display control signal to the character generator 24 to reduce the number of horizontal bars at every predetermined count value. Therefore, the horizontal bars are erased one by one as the time required for the pickup arm 4 to pass from the 7th position to the X point and reach the A point passes -17=. Figure 3(d) shows the changes in the monitor screen during this process.

The screen shown in (e) is the final screen. When displaying the above characters, apply image squelch and display the entire monitor screen in blue, for example.
On top of that, a side display value and a horizontal bar are displayed in white, for example.

When the pickup arm 4 reaches point A, the sensor lands on the disk 2, and a recording signal is displayed as shown in FIG. 3(g).

(2) In the case of termination of reproduction Next, when a reproduction termination request is made at point Y, for example, the address code of that point is read by the display microcomputer 13. This code is compared with the previously stored code for point X, and the time t3 from point Y to point X is calculated by the same calculation process as in operation (1). Since the travel time 11' from point Ru.

Therefore, by controlling the character generator 24 based on the above-mentioned time t3+t1'', the monitor screen displays the same images as in FIG. 4 (b), (c), . . .
A horizontal bar character as shown in (d) is displayed.

Note that FIG. 4(a) shows the monitor screen immediately before the end of playback, and when the screen shown in FIG. 4(e) without the horizontal bar is displayed, it represents when the pickup arm 4 has returned to the 7th position.

In this embodiment, the monitor screen as described above is displayed, so the user can predict the time when the image will appear, and even if the screen does not appear for a long time, the user can wait with peace of mind. .

Further, in this embodiment, LEDs 8a and 8b shown on the right side of FIGS. 3 and 4 indicate whether or not the disk 2 can be inserted or removed.
(Since the operation is similar to that in FIG. 6, detailed explanation will be omitted.) By referring to the screen contents according to this embodiment, abnormal operation can be known.

In addition, FIG. 5 is an example in which the passage of time is displayed by numbers, and each of (a) to (C1> is shown corresponding to FIG. 4. That is, the number 1 indicating the first page The numbers on the left connected by a hyphen represent the passage of time.Furthermore, the character indicating the passage of time is a bar display that gradually becomes shorter from a predetermined length, or a character indicating the pickup arm 4 that moves, etc. can be considered.Also,
If the change in the character increases over time, for example, if the character is displayed using numbers, the initial value may be 1 and the number may be increased sequentially.

[Effects of the Invention] As explained above, according to the present invention, the progress of the internal operations of the information reproducing device can be monitored on the screen, and the user can predict the time when the reproduction will start or when the disc will be ready to be ejected. It has the effect of being able to.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram showing an embodiment of an information signal reproducing device according to the present invention, FIGS. 2 to 4 are explanatory diagrams detailing the operation of the above embodiment, and FIG. FIG. 6 is an explanatory diagram showing another example of display. FIG. 6 is an explanatory diagram showing an example of a conventional display. 1... Playback device body, 2... Disc, 4...
・Pickup arm, 6...Operation key, 8a, 8b・LED, 9・
... Central processing unit, 10 ... Control microcomputer, 1
2...Data processing circuit, 13...Display microcomputer,
14...Signal processing circuit, 15...Synthesizing circuit, 17
... Synchronization signal generation circuit, 24 ... Character generator, 28 ... Operation display character. Figure 5

Claims (2)

[Claims] (1) A recording medium on which information signals and address signals are recorded and configured to be removable from the main body of the reproducing apparatus, and a signal pickup means for reproducing the recorded signals in a random accessible manner with respect to the recording medium. , a display that displays information from the recording medium indicating that the signal pickup means is approaching a target reproduction position at the start of reproduction and approaching a position from which the recording medium can be taken out at the end of reproduction; An information signal reproducing device comprising: operation progress indicator means for externally recognizing the progress of the operation. (2) The operation progress indicator means includes a character generation means for generating a character signal suitable for pseudo-expressing the operation of the signal pickup means, and a time period from a request to start reproduction until information is actually displayed. based on information designation data specified at the time of the reproduction start request and predetermined reference data; A second address signal obtained based on the address signal detected from the recording medium and the reference data.
and means for counting time data from each of the calculation means in accordance with the progress of the operation of the signal pickup means and controlling the character generation means so that the character changes every time a predetermined time elapses. , means for switching the display by the character generating means to another display when the signal pickup means reaches the target position of each request; Signal regenerator.