JPH06138832A - Installation adjustment data registration system and multiscan type display device - Google Patents

Abstract

PURPOSE:To improve the operability at the time of the registration of installa tion adjustment data on the multiscan type display device, to improve the preci sion of the installation adjustment state, and to save the memory capacity. CONSTITUTION:When an adjustment mode is entered, it is decided whether or not there is a memory area where the installation adjustment data is registered on the basis of signal decision parameters 5. Four pieces of information on a horizontal frequency, a vertical frequency, the kind of a synchronizing signal, and the input number of an external switcher are used as the signal decision parameters. When there is the memory area where the installation adjustment data is registered, the adjustment mode is entered as it is and the corresponding memory area is used, but when not, it is decided whether or not the memory area wherein the installation adjustment data is registered has free capacity. When the memory area has the free capacity, a user is made to decide 6 to secure the memory area, but when not, the user is made to decide an area where new installation adjustment data is overwritten 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plurality of horizontal frequencies,
The present invention relates to an installation adjustment data registration method in a multi-scan display device capable of inputting a video signal having a vertical frequency.

[0002]

2. Description of the Related Art In a multi-scan display device capable of inputting a plurality of types of horizontal frequency and vertical frequency video signals, a plurality of types of installation adjustment data are required to realize an optimum adjustment state according to the input video signals. Although a memory for registering the installation adjustment data is provided, the method for registering the installation adjustment data is roughly classified into two types. One is to reduce the number of signal discrimination parameters,
The second method is that the user manages the installation adjustment data by leaving all the management of the installation adjustment data to the display device.

FIG. 3 shows an example of the former method. FIG. 3 is a memory section of a system in which six types of installation adjustment data can be registered with the signal discrimination parameter as the horizontal frequency. The display device automatically discriminates and manages in which memory the installation adjustment data should be registered according to the horizontal frequency, so that the user is freed from the work of managing the installation adjustment data.

FIG. 4 shows an example of the latter method. In the latter method, the user selects the memory area to register the installation adjustment data on the installation adjustment data registration screen as shown in Fig. 4, and the user gives a name to the installation adjustment data to be registered. , Manage installation adjustment data. However, the display device calls the installation adjustment data by using another signal discrimination parameter.

[0005]

In the case of the former method, since the display device manages all the installation adjustment data, the operability is excellent, but the memory capacity for registering the installation adjustment data is limited, and therefore the signal is not provided. It is not possible to increase the number of discrimination parameters so much that it is not possible to register highly accurate installation adjustment data for each input video signal.

In the latter method, since the installation adjustment data can be registered for each input video signal, it is possible to realize a highly accurate installation adjustment state. It is necessary to give a name, which makes it difficult to operate when registering installation adjustment data. In addition, a large amount of memory capacity is required to register installation adjustment data for various types of input video signals.

The present invention realizes improvement of operability at the time of registration of installation adjustment data of a multi-scan display device, improvement of accuracy of installation adjustment state, and saving of memory capacity.

[0008]

In order to solve this problem, in the installation adjustment data registration method of the present invention, the installation adjustment data registration method is made different depending on whether there is a free memory capacity or not. Information of an input changeover switcher (see FIG. 2; hereinafter referred to as an external switcher) of an external unit used in combination with the multi-scan display device is also added to the signal determination parameter for registration.

[0009]

The present invention, while belonging to the method in which the user himself / herself manages the installation adjustment data by the installation adjustment data registration method described above, improves the operability of registration of the installation adjustment data, the accuracy of the installation adjustment state, and the memory. It has realized capacity saving.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a flow chart of a microcomputer control procedure of this system. In this method, by entering the adjustment key of 2, when the adjustment mode is entered, the signal determination parameters are compared in 3 to determine whether or not the memory area for registering the installation adjustment data is already secured. . As signal discrimination parameters, four parameters are used: horizontal frequency of input video signal, vertical frequency, type of sync signal (including polarity), and input number of external switcher. Here, if all four signal determination parameters match, it is determined that the memory area for registering the installation adjustment data has already been secured, and the adjustment mode is entered as 4 → 9. However, if any of the four signal determination parameters does not match, the process proceeds from 4 to 5 to determine whether the registration area for installation adjustment data is free.

If it is determined in 5 that there is a vacancy in the installation adjustment data registration area, the process proceeds from 5 to 6 and the user is left to determine whether to secure the installation adjustment data registration area. If there is an input to secure the registration area for installation adjustment data in 6, the horizontal frequency, vertical frequency, type of synchronization signal, and the input number of the external switcher, 4
The three pieces of information are registered in the memory area in which the signal discrimination parameter is selected, and the process proceeds from 6 to 8. After that, the installation adjustment data registration area is secured in 8 and then the process proceeds to 9 to enter the adjustment mode. If there is an input in 6 that the registration area for the installation adjustment data is not secured, the process proceeds from 6 to 9 to enter the adjustment mode.

When it is determined that there is no space in the registration area of the installation adjustment data in 5, the user proceeds to 5 → 7 to determine whether to overwrite the old installation adjustment data with the data of the installation adjustment to be performed. Entrust. If there is an input to overwrite the installation adjustment data in 7, the process proceeds from 7 to 8 and the above 4 signal discrimination parameters are displayed on-screen in 8 and the user is made to select the area to be overwritten based on that. . After selecting the overwrite area, proceed to step 9 to enter the adjustment mode. If there is an input in 7 not to overwrite the installation adjustment data, the process proceeds from 7 to 9 to enter the adjustment mode.

[0014]

As described above, according to the installation adjustment data registration method of the present invention, since the installation adjustment data can be registered for each signal, highly accurate data can be recorded and the multi-scan type display device can be used as the signal discrimination parameter. By adding information from the externally connected devices that make up the main unit and the system, it is possible to improve the operability and save the memory capacity when registering the installation adjustment data, even though it is the method in which the user performs the installation adjustment data.

[Brief description of drawings]

[Fig. 1] Flowchart of installation adjustment data registration method microcomputer control procedure

[Fig. 2] Multi-scan display device system configuration diagram

[Figure 3] Automatically managed installation adjustment data registration memory address

[Figure 4] User management type installation adjustment data registration memory selection screen

[Explanation of symbols]

 2 Adjustment key

Claims (1)

[Claims] 1. An internal circuit such as a deflection circuit, comprising identification means for identifying the frequency of a synchronizing signal included in the input video signal, when inputting a plurality of types of horizontal deflection frequency and vertical deflection frequency video signals. In a multi-scan display device that switches between and displays, setting means for setting a signal discrimination parameter for an input video signal,
Storage means for storing the installation adjustment data for each input signal in correspondence with the signal discrimination parameter set by the setting means, and installation in which the signal discrimination parameter stored by the storage means for the input video signal matches A multi-scan display device comprising: a control unit that automatically reads out adjustment data and sends it to a control circuit.