JPS58172687A - Display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to, for example, providing a service such as travel information by combining a computer with a microphone and a video disk player so that an appropriate image can be displayed on the monitor. be.

An example of this will be explained below.

In Fig. 1, (1) indicates a microcomputer, which has data related to tourist information, for example, and when conditions such as a destination are input from a customer, it processes the input conditions and makes sure that the conditions are met. It outputs data such as costs, etc.

In this case, the output data is output in the form of the three primary color signals R1e 01 e B1 in the standard color television system, and the signals R1 to B1 are digital signals having a level of 'O'' or C11''. , TV mw
When displayed as , for example, it is displayed as a single letter, number, symbol, etc., as shown in the ta2 diagram. Further, a control signal 8p, which will be described later, corresponding to the customer's manual labor conditions is also taken out from this computer (1).

Furthermore, <2) indicates, for example, a laser-type video disc player, and this player (2) is a computer (
Each operation mode is controlled by the signal 89K from 1), and a composite color video signal is reproduced from the address of the video disk specified by this signal -\fSpK.

Also, the player (2) can be externally synchronized 4!
5, the color-carrier wave 8C and the composite synchronization pulse Pg are supplied from the computer (1) to the player (2), [both +11, 1if1 period of the video output of (2) is taken], and the player (2) The composite color video signal from NTSC decoder<3)K is supplied to the three primary color signals R3+
G3 r B3 and the composite synchronization pulse Ps are taken out.

-tL, the signal R1-B1 from computer (1).

The signal from the decoder (c) ~ B3 is the switch circuit (4
), and the signal R1% B1 is supplied to the OR circuit (
6) When K is supplied, the OR signal S6 is sent to the switch circuit (4
) as a control signal, and when S6='''θ'', the signal S~B3 is taken out, and when S6=''1'', the signal S~B1 is taken out. Then, the extracted signals R1 to B1 or R3 to B3 are sent to the color monitor (5).
At the same time, the decoder (synchronized from 31) pulse Pg is supplied to the monitor (5).

According to such a configuration, when the conditions indicated by the customer are inputted to the computer (1) K, this is processed to form the signal 8p, and the player (2) is controlled by this signal SpK and the customer's conditions -Saki, A composite color video signal with corresponding content is reproduced from the video disc, resulting in a signal ratio of 3 to B3.

Then, if S6=″θ″, the switch circuit (
4) is in the state shown in the figure, the signals R3 to B are supplied to the monitor (5) through the switch circuit (4)v, and therefore,
As shown in 11E21EIBK, an image reproduced by the player (2), for example, a scenery of a destination that satisfies the customer's conditions, is displayed on the screen of the monitor (5).

On the other hand, the computer (1) calculates, for example, the cost based on the customer's conditions, and outputs signals hl to B1, which are reproduced as images as shown in FIG. 2AK, for example.

If any of the signals R1-81 is ``1'', its OR output 8 also becomes ``1'', and at this time, the switch circuit (4) is connected in the opposite state to that in FIG. The signal ratios 1 to B1 are supplied to the monitor (5) K. Therefore, the monitor (5) K receives information such as scenery of the destination (Fig. 2 B) K information such as costs (medicine 2) as shown in Fig. 2 C. A) is displayed superimposed.

Thus, according to this statement, computer (1)
When you input data to , the lii corresponding to the input conditions
I am played by player (2) K, and this is played by monitor (5).
) and superimposed on the data monitor (5) from the computer (1).

Therefore, it is extremely convenient to use it for various kinds of information and services. Also, for example! Even if costs change due to price hikes, there is no need to change the video disc in the player (2) and the computer (1)
We can provide a detailed service that is as easy as correcting the data.

FIG. 3 shows an example of a switch circuit, namely S6
At 1! of =゛0''', the transistor Ql is off, so the diode D1 is off, and the transistor Qs acts as an emitter 7 lower, so that the signal from the decoder (3) is also output (or Gs, Bs). is connected to the transistor s' and is supplied to the monitor (5) K. Also, at this time,
Since the transistor Q2 is turned on, the diode L) is turned on and the transistor Q4 is turned off, and the signal kL1 (or G1+H*) from the computer (1) is
is monitor(5)K not supplied io but s@="1
”, the on/off states of transistors Q1 to Q4 become reverse pressure, so the signal Rt (
or GltBs) is supplied to the monitor (5) through transistor Q4.

In the example shown in the 4th m1IK, the computer (1) sends three primary color signals R1 to B1 and a signal x that controls the level of the color displayed by these signals to 100% or 50% (50% when x = "o"). , 10 when X="l"
0%) is output. That is, in this case, colors can be expressed by the combinations shown in the iris diagram 5, but in this case, the ■th R to B = "0".

Since the combination of X-key "1" has no meaning (it can be substituted on another assembly table), only in this ■th combination, 8m=@O" is made.

Therefore, the signals R1 to B1°X from the computer (1)
is supplied to the 4-3 encoder (IIHc and the signals R1 to B
1 is taken out, and this signal R1°~Bl is supplied to the switch circuit (4)K, and in this case, the encoder aυ
is configured, for example, as shown in FIG.

That is, when X="l", the diodes DIl-D13 are turned off by the output of the pan 7a Q17, and the signals R1-B1 from the computer (11) are sent to the buffers Q14-D13.
Through Q1-, the emitter follower transistor Q! t~Qls through switch circuit [41 to 100%
supplied at a level of Also, when X=“O”,
Since the diodes DIl to DIS are turned on, the signal R1
~B1 is attenuated to a level of 50% by resistors R11~R1@ and is supplied to the switch circuit +41 K.

In the example shown in FIG. 7, the signal R1-B1 from the computer (1) is sent to the NT8C encoder c! +nc is supplied to the switch circuit (4) after being converted into a color video signal, and the color video signal from the player (2) is supplied to the switch circuit (4)K without being decoded. Therefore, in this case, the monitor (5
) color demodulation (decoding) is performed.

In the example shown in FIG. 8, a luminance signal Y is emitted from the encoder Qυ, and this signal Y is sent to the level comparison circuit 11'.
, DKK are supplied, the levels are compared at the level Hr as shown in FIG. 9A, and the signal S6 is taken out as shown in FIG. 9BK.

The M2O diagram also shows that the computer (1) generates a composite synchronization signal from the horizontal synchronization pulse Ph and the vertical synchronization pulse Pv.
An example of forming xPs and color #111JIII transmission 8C is shown.

In other words, a color-carrier frequency oscillation signal is extracted from the VCO@υ, and this signal is supplied to the N'1''8C sync generator ■ to send the horizontal synchronization pulse Ph, composite synchronization pulse Ps, and color subf1i. A wave 8c, a burst flag pb, etc. are formed. Pulse Ph among these formed pulses is supplied to the phase comparator circuit 04, and the horizontal synchronization signal formed by the CRTC (IC) of the computer (1) The pulse Ph is supplied to the comparison circuit (to) K, and the comparison output is passed through the low-pass filter hv to vcoc.
Supplied as a 3aK control voltage.

Further, the vertical synchronization pulse Fv from the CTC (IC) is supplied to the generator C321 as a reset input.

Therefore, the output of generator (2) is CkLTC(t
The pulse Ph from c) becomes a signal synchronized with 'v.

In addition, the above Ki? The computer (1) may be a Dahui Computer terminal, or a KVTR or the like may be used instead of the player (2).

Brief explanation of -1 Figure 1, Figure 4, Striped Figure 7, Iris 8 - is a systematic diagram of an example of Jin's invention, Figure 112, Figure 3, Figure 5, Figure 6, Iris Figure 9, FIG. 10 is a diagram for explaining this.

(1) is a microcomputer, (2) is a video disc player, and (5) is a color monitor.

Figure 1 Figure 2 A C ] Figure 8

Claims (1)

[Claims] has a video playback device, a computer, and a monitor;
The video output of the video playback device is supplied to the monitor to display the picture, and the video output of the computer is taken out from the computer, and the video output of this computer is supplied to the monitor to display the video of the video playback device. A display device that displays an image by superimposing it on an output image.