KR19980064715U - VSI system with automatic output switching function of RF modulator - Google Patents

Abstract

The present invention relates to a VSI system having an automatic switching function of the RF modulator, and conventionally, when PAL and SECAM signals are selected and provided to the modulator through an IF modulator in a European VSI system. The user's choice was to select the type of broadcast output from the OS menu screen, which made the system inconvenient to use.

The present invention provides a microcomputer for controlling the function of sending the arm or the sekam mode to the RF modulator when the user of the system selects English or French on the function menu screen. RF modulator that selects arm or secam mode according to control port logic of microcomputer and outputs OSD menu screen when pressing function key and item selection number through key input unit. An object of the present invention is to provide a BC system having an automatic switching function of an RF modulator having a configuration.

Description

VSI system with automatic output switching function of RF modulator

The present invention relates to a VSI system having an automatic switching function of an RF modulator, which is automatically activated when a user selects a language through an OSD menu, especially in a system having a PAL and Sekam common reception function in a European VSI. It is possible to obtain the convenience of using such a system by allowing the output of VSI to output the RF modulator in the corresponding broadcasting method.

The VSI system having a conventional OSD function is illustrated schematically as shown in FIG. 2.

Here, the reproduction / recording section 1 for reproducing or recording the video signal and audio signal from the tape, and detecting and outputting the video and audio signals reproduced from the reproducing / recording unit, respectively, outputs a control pulse and a direct current envelope for the video signal. Outputs the signal to the control unit, and simultaneously modulates the signals to be recorded on the tape and supplies them to the playback / recording unit. To a control unit 4 including a microcomputer that controls each part of the device such as a power on / off operation and a deck operation related to recording / reproducing by a key input signal, and checks the sensor input unit to detect the operation state of each part of the deck. It is done.

In addition, the system has an OSD processing unit (3) for generating a character screen for the On Screen Display (hereinafter referred to as OSD) by generating the character by the control unit 4, and controlled by the control unit The deck unit 7 and the sensor input unit 6 for reading an operation state of the deck unit or the presence / absence of a recording tab and transmitting an arbitrary detection signal according to each state to the control unit 4 are configured. .

In addition, in the system, the OSD function of the screen interactive menu method, the user performs various setting operations such as time setting, reservation recording, channel preset, and the like, and an example of such an OSD menu method is shown as follows.

TABLE 1

If you press 3 in Table 1,

TABLE 2

When the automatic selection is pressed in Table 2, the channel number is continuously changed from 02 to 69, and only the channel having the broadcast is automatically stored, and when the memory is completed, the lower numbered channel is selected among the stored channels.

TABLE 3

On the other hand, in the above system, in order to convert the RF modulator into the arm or secam mode, the microcomputer enters the arm and secam selection item from the OSD menu and selects a predetermined mode. Alternatively, the RF modulator was designed to generate a logic 1 or 0 output logic from the secam select port and output the corresponding mode.

However, in such a prior art, since the arm and secam selection functions provided by the RF modulator as described above enter the OSD menu screen and are selected individually, it is difficult to avoid the hassle of selecting.

An object of the present invention is to solve the above problems, the user can select the arm and sekam mode selected from the OS menu screen to automatically select the arm and sekam mode when the language is selected in the language selection item. This eliminates the hassle of bringing up the screen randomly from the SD menu item.

In order to achieve the above object, the present invention provides a microcomputer which controls the output function of ARM or Sekam mode to the RF modulator when the user selects English or French on the function menu screen. RF modulator for outputting arm or secam mode according to the control port logic of microcomputer and outputting OSD menu screen when pressing function key and item selection number through key input unit. It is a feature of the VSI system having the output automatic switching function of the RF modulation unit of the configuration.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings, and thus more detailed features of the present invention will be understood.

1 is a block diagram schematically showing some components of a conventional BC system;

2 is a system circuit block diagram of the present invention

Figure 3 is a flow chart for knowing the flow of control operation of the present invention

** Explanation of symbols for main parts of drawing **

11.Key Input 12.Microcomputer

13. RF Modulator 14. Tuner Unit

15. OSDIVE 16. IFF

17. Video / Audio Processing Unit 18. Deck Unit

100. Automatic Control Processing Program

Figure 2 shows the main circuit block of the VSI system having an output automatic switching function of the RF modulator according to the present invention.

In this case, when the user selects English or French on the function menu screen, the microcomputer 12 controls the output of the arm or sekam mode to the RF modulator, and the output of the microcomputer 12 RF modulator 13 for receiving and selecting arm or secam mode according to the control port logic of microcomputer 12, and outputting OSD menu screen when pressing function key and item selection number through key input unit 11 The OSD part 15 etc. which are mentioned are included.

Further, the system is connected with a deck unit 18 for performing operations such as tape running / stopping under the control of the microcomputer 12. The RF modulator 13 has a tuner unit 14 and an eye. The F unit 16 and the video / audio processing unit 17 are provided.

According to the present invention, the microcomputer 12 recognizes this when the function key is pressed through the key input unit 11 when selecting the broadcasting method of the TV receiver possessed by the European VSI system. 15), the OS unit 15 outputs the following function menu screen through this.

TABLE 4

Therefore, if the user presses 3 in table 4,

TABLE 5

The language selection screen of Table 5 is provided, wherein when the user presses 2 or 3, the microcomputer 12 of FIG. 2 sets the language data such as an OS program as the corresponding language data and simultaneously performs the RF modulation unit 13. By providing logic 1 or 0 to the arm and sekam control stage, the arm mode or secam mode is selected.

Thus, when the user selects a language in the system's language selection mode, the user can automatically switch to the arm or secam output mode.

In particular, the English-speaking UK is armed with English, while the French-speaking Secam is broadcast.

On the other hand, the above operation is performed by the microcomputer 12 together with the automatic control processing program 100 of the arm and Sekam mode, as shown in Figure 3, which recognizes this when the user enters a function key in the system function menu The screen is output (steps 101 and 102).

The function menu screen is output as shown in Table 4, and when the user selects a language selection item, the system outputs a language selection screen as shown in Table 5 (steps 103 and 104).

When the user selects English or French, the broadcasting method corresponding to the language usage area is set (steps 104 to 108).

This design of the present invention is to set the broadcasting mode independently of each other because the local broadcasting method mode is automatically set when the user selects a language item for each region through the OSD menu screen in Europe. There is an effect that can eliminate the hassle.

Claims (1)

In European VSI systems, including microcomputers, OSDs, RF modulators, etc., when the user selects English or French on the function menu screen, the ARM modulator automatically outputs the arm or sekam mode output function. A microcomputer 12 for controlling the control unit; an RF modulator 13 for selecting and outputting an arm or secam mode in accordance with the control port logic of the microcomputer 12, following the output of the microcomputer 12; and a key input unit. (B) a VSI system having an automatic output switching function of an RF modulator, characterized by a configuration including an OS unit 15 for outputting an OS menu screen when a function key and an item selection number are pressed.