JP2870116B2 - Data output device and data output method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a data output device suitable for use in a disk reproducing device or the like for reading and displaying data stored in a data disk such as a CD-ROM. Data output method.

[Summary of the Invention]

The present invention relates to a data output device and a data output method for reproducing and outputting data recorded on a recording medium, wherein data stored in the storage means, particularly data to be displayed during a waiting time, is stored in advance, When it is detected by the detecting means that the waiting time is reached, by reading out and outputting the data stored in advance in the storage means, for example, it takes time for signal processing or the like so that the data is not displayed on the display screen. Even in such a case, the data can be displayed, so that the waiting time for the signal processing or the like is felt short, so that the user is not bored.

[Conventional technology]

In recent years, a so-called CCD-ROM disc in which data such as a dictionary or an encyclopedia is recorded on an optical disc, and the data can be semi-permanently stored, and a data output device for reproducing the data are becoming widespread.

In this system, one search program for searching data recorded on one CD-ROM disk is prepared, and data is read using this search program.

At the time of this search, it takes time for signal processing and the like, and data cannot be displayed on the display screen. Therefore, during the waiting time when this data is not displayed, for example, “please wait for a while” stored in a plurality of memories. The message was displayed.

[Problems to be solved by the invention]

However, the above-described conventional data output device has a small data amount of a message displayed at the time of the search, and can display only a plurality of similar messages, thereby causing the user to be bored and having a long waiting time. It makes me feel.

It is also desired to develop a data output device that can effectively use the display screen during the waiting time.

The present invention has been made in view of the above problems, and provides a data output device that can output various data during the waiting time, can effectively use a display screen, and does not bore a user. Aim.

[Means for solving the problem]

A data output device according to the present invention is a data output device that reproduces and outputs data recorded on a recording medium,
Reproducing means for reading and reproducing data from the recording medium; data processing means for processing data reproduced by the reproducing means; and waiting time detecting means for detecting that data is being processed in the data processing means. A first data storing main data reproduced from the recording medium.
And a second memory for storing in advance data for performing display during data processing in the data processing means, wherein the waiting time detection means performs data processing in the data processing means. When the presence is detected, data stored in advance in the second memory is read and output.

Also, a data output method according to the present invention is a data output method for reproducing and outputting data recorded on a recording medium, the reproducing step of reading and reproducing data from the recording medium, and a display step for performing display. Storing the data in a second memory, processing the reproduced data, storing the reproduced main data in a first memory, and performing data processing in the data processing step. And a detecting step for detecting that data processing is being executed. When it is detected in the detecting step that data processing is being executed, data previously recorded in the second memory is read and output. It is characterized by doing.

[Action]

In the data output device according to the present invention, the data to be displayed during the data processing in the data processing means is stored in the second memory in advance, so that the data processing means can store the data in the data processing means. When it is detected that the processing is being performed, data stored in advance in the second memory can be read and displayed.

Also, the data output method according to the present invention includes a step of storing data for display in the second memory and a detecting step of detecting that data processing is being executed. When it is detected in the step that the data processing is being executed, the data stored in advance in the second memory can be read and output.

〔Example〕

Hereinafter, embodiments of a data output device and a data output method according to the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a data output device according to the present invention.

In this data output device, a data disc to be reproduced has, in addition to main data, a predetermined area,
For example, data for a waiting time such as an advertisement or an advertisement that is displayed only during a so-called waiting time, in which no data is displayed on the display unit, such as when searching for desired data, is stored. The data output device according to the present embodiment reads the data for the waiting time in advance, and displays the data for the waiting time when it is detected that the waiting time is being spent.

First, in FIG. 1, a data output device includes a reproducing system 2 for reproducing data recorded on the data disk 1, a signal processing system 3 for performing signal processing on the read data, and a data processing system 3 for processing the read data. And a data processing system 4 for displaying images by performing search processing. The control of each system is performed by one CPU (central processing unit) 5 described later.

In the reproduction system 2, the CPU 5 controls the laser light source drive circuit 10, the thread feed motor 11, the two-axis actuator drive circuit 12, and the motor drive circuit 13 according to an input from the keyboard 31. That is, the CPU 5 is a motor drive circuit
13 is controlled to rotate the spindle motor 6 by, for example, CLV (constant linear velocity) or CAV (constant angular velocity). At the same time, by controlling the thread feed motor 11,
The so-called radial control of the disk is performed by moving (coarsely moving) the pickup 7 including the objective lens 14, the photodetector, and the optical element for focus error detection attached to the shaft actuator to a predetermined track on the data disk 1. And a two-axis actuator drive circuit
By controlling the objective lens 12, the objective lens 14 of the pickup 7 is moved up and down to adjust focusing, or the objective lens 14 is moved right and left to irradiate a beam spot to an arbitrary track, that is, a so-called tracking control is performed, and the data is controlled. The data recorded on the disc 1 is reproduced.

On the disk of the data disk 1, for example, a subcode area and a data area are provided for each frame, and a synchronization signal, position information,
Time information and the like are written. In the data area, for example, data of an encyclopedia is written for each item, and in a predetermined data area, data of, for example, an advertisement or an advertisement, which is displayed only during a waiting time described later, is written. Have been.

The data signal read from such a data disk 1 is supplied to an error detection and data detection circuit 8 so that, for example, a so-called sum or difference is obtained and a focus error and a tracking error are detected. The focus error and tracking error are supplied to a two-axis actuator drive circuit 12. 2-axis actuator drive circuit
Numeral 12 controls the objective lens 12 in accordance with the focus error signal and the tracking eter signal so as to maintain normal focusing and tracking and to read data accurately. The laser beam applied to the data disk 1 is controlled by, for example, detecting an output from a laser diode (not shown) and supplying this detection signal to a laser light source drive circuit 10. That is,
The laser light source drive circuit 10 controls the power of the laser beam applied to the data disk 1 according to the detection signal so that the power is always constant during reproduction.

On the other hand, a reproduction signal including a synchronization signal and time information reproduced from the data disk 1 is supplied to a CD signal processing circuit 15 of the signal processing system 3 via an error detection and data detection circuit 8. The CD signal processing circuit 15 separates the supplied reproduction signal into a sub data signal such as a synchronization signal and time information and a main data signal, and supplies the main data signal to the CD-ROM signal processing circuit 19. The main data signal supplied to the CD-ROM signal processing circuit 19 is a memory for temporary storage.
CPU 5 through RAM (random access memory) 20
Is read out according to the signal supplied from the. Data bus
21 has a ROM 22 and a RAM 23 in which programs and the like are recorded.
Is connected. The read main data signal and the like are transmitted via the data bus 21. Then, a display image is recorded and formed in the video RAM 26 according to the kanji pattern or the like read from the kanji ROM 24 in response to the main data signal, and the display image in the video RAM 26 is displayed by the display controller 25 in response to the signal from the CPU 5. The data is read out and displayed on a display unit 27 such as an LCD (Liquid Crystal Display).

In such a disk reproducing apparatus, since the man-machine interface for data processing and display does not require strict time processing, these are processed as a main routine, and other processing is performed in an interrupt routine, so that the entire signal is processed. All the processing is performed by the single CPU 5, and among the software controls between the host CPL and the drive CPU, the command packet ← → status code system is diverted from the bus line system. When control from the host is desired, the main routine is replaced with a halt (HALT) instruction and a bus line control routine is started.

By the way, in the data output device that executes the main routine as described above, when it is desired to read desired data from the data disk, it takes some time to search for and display the desired data, During this data search or the like, no data is displayed on the display unit 27. During such a waiting time, the display of data may be stopped until the main signal processing ends,
It is also a very boring time for users (who are waiting for signal processing).

Therefore, in the present embodiment, when a so-called output resource becomes empty, such as when data is not displayed on the display unit 27 as in the above-described search processing, the buffer RAM 35 is determined in advance by an interrupt routine. The data of the above-mentioned advertisements and the like which are captured in is displayed.

That is, for example, at the same time as the start-up of the apparatus, data such as advertisements and advertisements stored in a predetermined area of the data disk 1 is read and stored in the buffer RAM 35 in advance. The waiting time detection circuit 36 detects the output from the display controller 25, detects when the output from the display controller 25 has stopped due to the data search, and supplies this detection signal to the buffer RAM 35. Also, buffer RAM
In the case where it takes a long time for the CPU 5 to display data in the search or the like, the CPU 35 is supplied with a signal indicating this.

When each of the above detection signals is supplied to the buffer RAM 35, the previously stored data for the waiting time of the advertisement or the advertisement is read out from the buffer RAM 35, and the data is stored in the data as described above. In response, an image or the like is displayed on the display unit 27.

An operation of displaying the data of the above-mentioned advertisement or advertisement stored in the buffer RAM 35 in advance is shown in FIGS.
This will be described with reference to the flowchart shown in FIG.

First, in step 51 of FIG. 2, it is determined whether output of data stored in the buffer RAM 35 is necessary. This is performed by the waiting time detection circuit 36 as described above. For example, a so-called AND operation is performed to determine whether an output resource is available (an output signal from the display controller stops) or it takes time to execute a specified operation. A search is performed, and in the case of No, that is, when it is determined that the data stored in the buffer RAM 35 does not need to be output, the processing ends and the process returns to the main routine described above. In the case of Yes, that is, the data stored in the buffer RAM 35 If it is determined that the stored data needs to be output, the process proceeds to step 52 to start outputting the stored data, and then proceeds to step 53.

The output of the buffer data is performed when the above-described waiting time detection circuit 36 detects the stop of the output from the display controller 25, or when the CPU 5 detects that it takes time to display the data in the search or the like. Done.

A display image is recorded and formed in the video RAM 26 by a kanji pattern or the like read from the kanji ROM 24 according to the data read from the buffer RAM 35, and the display controller 25 stores the display image in the video RAM 26 according to a signal from the CPU. The display image is read and displayed on the display unit 27. As described above, the display contents include, for example, advertisements and advertisements.

Next, in step 53, it is determined whether or not the output of the displayed data may be ended.

This is because when the data displayed during the signal processing wait time or the like is required to be output at a minimum, for example, in an advertisement, there is a time until the purpose is displayed. This step is repeated, and when the process may be ended, the process proceeds to step 54.

In step 54, it is determined whether or not the above-described signal processing has been completed. If No, step 54 is repeated. If Yes, the process proceeds to step 55.

In step 55, since the signal processing has been completed in step 54, the reading of data from the buffer RAM 35 ends, and the process proceeds to step 56.

In step 56, since the data stored in the buffer RAM 35 is output and displayed, a buffer empty flag is set to indicate that there is no data in the buffer RAM 35, and the process ends.

In this way, it takes time to search for desired data and signal processing, and detects when data is not displayed on the display unit, and displays advertisements and advertisements that have been captured in the buffer RAM 35 in advance. The signal processing waiting time and the like can be effectively used, and the user is not bored.

Next, the operation of reading data when the buffer RAM 35 outputs data from the buffer RAM 35 and a buffer empty flag indicating that no data exists in the buffer RAM 35 will be described with reference to FIG.

This operation is also performed in the interrupt routine.
In 61, it is determined whether or not the empty flag is set in the buffer RAM 35. If No, there is no need to read data, so that the process ends and the process returns to the main routine. If Yes, the process proceeds to step 62.

In step 62, since there is no data stored in the buffer RAM 35, it is determined whether or not to start reading the data. If No, the process ends. If Yes, the process proceeds to step 63 to read the data. To start.

This data reading is preferably performed when the user does not access the data on the disk. When the CPU 5 detects that the empty flag is set in the buffer RAM 35, the CPU 5 drives the reproduction system 2 and waits for the data disk 1. The data for the waiting time is read from the area in which the data for the time is stored.

The read data is transferred to the data bus as described above.
The data is taken into the buffer RAM 35 via 21.

By providing a plurality of data for the waiting time, assigning a priority to each of the plurality of provided data, and displaying the data in sequence each time the waiting time is present, the same data can be shown to the user many times. Because it is not, it is more effective without boring the user.

In addition, by storing data to be displayed during the waiting time on a medium having a large storage capacity such as a data disk, display data for various waiting times can be considered without being limited to the storage capacity, and stored. be able to.

In the above-described embodiment, for example, an advertisement or an advertisement is displayed during the waiting time for signal processing or the like. However, any method may be used. For example, a moving image such as an animation may be displayed.

〔The invention's effect〕

As described above, in the data output device according to the present invention, the data for performing the display during the processing of the data in the data processing means is stored in the second memory in advance, so that the data is output by the waiting time detecting means. When the processing means detects that data is being processed,
Data previously stored in the second memory can be read and displayed.

Also, the data output method according to the present invention includes a step of storing data for display in the second memory and a detecting step of detecting that data processing is being executed. When it is detected in the step that the data processing is being executed, the data stored in advance in the second memory can be read and output.

Therefore, in the data output device and the data output method according to the present invention, the reproduction output is not stopped and the user is not bored even during the waiting time caused by the data processing unit being processing data. Therefore, the time required for the data processing or the like can be felt short.

In addition, as an effect of the embodiment, by storing data to be displayed during the waiting time on a medium having a large storage capacity such as a data disk, display data for various waiting times can be considered without being limited to the storage capacity. , And can be memorized.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of a data output device according to the present invention, FIG. 2 is a flowchart for explaining data display of waiting time, and FIG. 3 is data for waiting time display in a buffer RAM of the embodiment. 9 is a flowchart for explaining the operation of capturing the data. DESCRIPTION OF SYMBOLS 1 ... Data disk 2 ... Reproduction system 3 ... Signal processing system 4 ... Data processing system 5 ... CPU 7 ... Pickup 8 ... Error detection and data detection circuit 10 ... Laser light source drive circuit 11 ... Thread Feed motor 12 ... Dual axis actuator drive circuit 13 ... Motor drive circuit 14 ... Objective lens 15 ... CD signal processing circuit 19 ... CD-ROM signal processing circuit 21 ... Data bus 22 ... ROM 23 ... RAM 24 Kanji ROM 25 Display controller 26 Video RAM 27 Display 31 Keyboard 35 Buffer RAM 36 Wait time detection circuit

Claims (2)

(57) [Claims] 1. A data output device for reproducing and outputting data recorded on a recording medium, comprising: reproducing means for reading and reproducing data from the recording medium; and data processing for processing data reproduced by the reproducing means. Means; a waiting time detecting means for detecting that data is being processed in the data processing means; a first memory for storing main data reproduced from the recording medium; A second memory for storing data for display during processing in advance, wherein when the waiting time detecting means detects that the data processing means is processing the data, 2. A data output device for reading and outputting data stored in advance in a second memory. 2. A data output method for reproducing and outputting data recorded on a recording medium, comprising: a reproducing step of reading and reproducing data from the recording medium; and storing data for display in a second memory. Performing the data processing step of processing the reproduced data; storing the reproduced main data in the first memory; and detecting that the data processing in the data processing step is being performed. And when the data processing is detected in the waiting time detecting step, the data stored in advance in the second memory is read and output. Data output method.