JPS63187978A - On screen display device - Google Patents

Abstract

PURPOSE:To display the demonstration of the setting procedure of the function of a concerned video equipment on a screen by multiple pressing the specific operating switch of the video equipment. CONSTITUTION:A key input from a remote control transmitter 4 is inputted to a microcomputer 2 through a receiving part 5. The microcomputer 2 receives this key input, and then, feeds data D for displaying on the screen a function corresponding to the key, a clock CK and a strobe signal ST to a character generating IC 6. This IC 6 decides a display position on the screen of a character signal C supplied to a TV receiver 7 based on a horizontal synchronizing signal HS and a vertical signal Vs. A background color signal B for deciding the background of the screen is supplied to the TV receiver 7 from the IC 6. Then, when the operating switch is multiple depressed, the data of the setting procedure is outputted to the IC 6 by the microcomputer 2 and the on-screen display is executed according to the setting procedure.

Description

Detailed Description of the Invention (a) The invention relates to an on-screen display device for video equipment equipped with an on-screen display function for displaying characters, etc. on the screen of a television receiver, etc. .

(b) Conventional technology In recent years, television receivers (hereinafter referred to as R'RV receivers) and video tape recorders (hereinafter referred to as ``VTRJ'') have been developed.
In video equipment such as TV receivers, an on-screen display circuit is added to display characters, numbers, graphics, etc. on the PLAN tube screen of the TV receiver.

This on-screen display circuit V allows various functions of the TV receiver or VTR to be displayed on the Granule screen.

Such an osciscreen display circuit is disclosed in, for example, Japanese Patent Application Laid-Open No. 61-8
As described in Publication No. 576 (HO4N5/445), a microcomputer (microcomputer) reads a display pattern stored in a memory in a display IC (integrated circuit) and displays it on the screen. This is what is output.

The contents displayed on the screen by the above-mentioned on-screen circuit are "menu", "clock set", "
"Timer reservation", "Calendar", "Reservation confirmation", etc.
This is a function that TR has. That is, when one of the operation keys corresponding to each of the above functions provided on the remote control transmitter controlled by VTII is pressed, an on-screen display starts and the pressed It determines which function a key corresponds to (selects a display mode) and displays the function on-screen. Furthermore, to end the on-screen display, press the operation key corresponding to the function currently being displayed on-screen.

By the way, 1. For example, in order to demonstrate and explain to a customer the setting procedure of a VTR's functions using such an on-screen display at a store, a store employee must operate the operating keys each time according to the setting procedure.

(c) Problems to be solved by the invention The present invention has been made in view of the above points, and
The system is equipped with a function to display the functions of video equipment such as on-screen display and to demonstrate the setting procedure.

B) Means for solving the problem The on-screen display device of the present invention includes a discriminating means for discriminating whether a specific one of the number of operation switches provided in the video equipment has been pressed multiple times, and a discriminating means for discriminating and means for demonstrating the setting procedure of the function of the video equipment by means of an on-screen display when multiple pressing of the specific operation switch is detected by the means.

(e)) Effect If configured as above, by pressing a specific operation switch of the video equipment multiple times.

A demonstration of the procedure for setting up the functions of the video device is displayed on-screen.

(F) Embodiment One embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

FIG. 2 shows a schematic configuration of the on-screen display device of the present invention, in which (21 is a microcomputer equipped with a program for on-screen control, (3) is an input key matrix circuit, and (3) is an input key matrix circuit; ) are connected to operation switches (not shown) of VTR+1). Further, key input from the remote control transmitter (4) is input to the microcomputer (2) via the receiving section (51).

When the microcomputer (2) receives a key input from a VTR operating switch or a remote control transmitter (4), the microcomputer (2) outputs a clock (CK) along with data (D) for on-screen display of the function corresponding to the switch and key. Then, a strobe signal (ST), which is output during the data period and is used to distinguish between data and noise, is output to the character generation IC (61). Based on this, the display position on the screen of the character signal (C) to be supplied to the TV receiver (7) is determined.In addition, the background color signal (B) that determines the background of the screen is sent from the character generation IC 161 to the TV receiver (7). Receiver (7
).

Next, referring to FIG. 1 which shows the functions of the microcomputer shown in FIG. 2 as blocks, and FIG. 8 which shows the flowchart, it will be explained. The microcomputer (2) uses the medium-human power discriminator (2a) to determine the key power input from the remote control transmitter (4). data section (2b)
The output data is used to display the normal on-screen display, that is, the on-screen display of the function corresponding to the pressed key. This on-screen display is shown in Figure 3 on the "Menu screen", "Clock set", "Timer reservation", "
Is either "calendar" or "reservation confirmation" displayed and a predetermined operation performed based on it?

Alternatively, the on-screen display ends after a certain period of time has elapsed.

On the other hand, if you press the operation switch multiple times, that is, press two or more operation switches at your chest, the key manual recognition section (2a)
outputs the data of the setting procedure demonstration data section (2C) to the character generation IC+81. As the operation switch to be pressed multiple times, a switch such as a counter/memory button and a timer button, which has no meaning even if pressed multiple times, is selected.

In other words, the setting procedure demonstration data part [
Based on the data from [2C], the menu screen [Figure 4 (S)] is first displayed on the screen, and then the clock set (CLOCK 5ET) mode is automatically selected, so the screen displays the menu screen [Figure 4 (S)]. Demonstrate the preset date, time, etc. in the order of at to (e) in the setting procedure.

When the demonstration of the setting procedure of this clock set is completed, the normal TV screen [Fig. 4 (f)] will be displayed for a predetermined period, the menu screen [Fig. 4 (g)] will be displayed again, and then the timer will be set automatically. (TIMER PROGRAM)
Since the mode is selected, the screen shown in Figure 4 (hl~(g)
This section will demonstrate a setting procedure for recording a set of examinations at preset dates and times in the order of 1. When this demonstration of the timer reservation setting procedure is completed, the normal TV screen [Fig. 4 (r)] is displayed for a predetermined period, and the first menu screen [Fig. 4 (S)] is displayed again, and the above-mentioned display operation is performed. It is done repeatedly.

To end the demonstration operation using the above on-screen display, go down to VTRL:Dt power switch off, but instead of turning off the power switch, first press the specific switch that was pressed multiple times. You just need to set the microcomputer program so that it can be terminated by pressing the button multiple times again.

In the above embodiment, only the clock setting and timer reservation are demonstrated, but other functions of the VTR may also be demonstrated using an on-screen display.

(G) Effects of the Invention As described above, according to the present invention, when a salesman at a store explains to a customer, for example, how to set up the functions of a VTR by demonstrating on-screen display,
This has the effect of saving you the trouble of operating the operation keys one by one according to the setting procedure. Furthermore, since the on-screen demonstration starts with multiple presses of the operation switch, there is no need to provide a special switch.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the functions of an on-screen display device embodying the present invention, FIG. 2 is a schematic block diagram showing its specific configuration, and FIG. 8 is a flowchart illustrating the operation of the present invention. FIG. 4 is a diagram showing a demonstration state according to the present invention, and FIG. 5 is a diagram for explaining a conventional on-screen display operation. (1)...Video tape recorder, (2)...Microcomputer, (7)...Television receiver.

Claims (1)

[Claims] (1) In a video device equipped with an on-screen display function for displaying characters, etc. on the screen, and configured to perform function settings according to the screen display by the on-screen display function, the video device is provided with a plurality of operation switches. Ori,
A determination means for determining whether or not a specific operation switch has been pressed multiple times; and when the determination means detects multiple presses of the specific operation switch, an on-screen display of the setting procedure for the function of the video equipment is provided. an on-screen display device comprising means for demonstrating by.