JPS59123881A - Color display system - 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 relates to a color display system, in which a color display signal generating device J performs luminance signal processing of a color asymmetrical receiver by separately outputting luminance signals and l1ifl color feeding signals. By supplying the carrier color signal directly to the demodulation circuit, image quality linking is achieved without cross color interference or interference to the driver 1.
It is an object of the present invention to provide a color display system that can produce a bright color image without causing any blemishes.

In general, there is a color display system that generates a color display signal for color image processing using a computer, Breviboom, etc., and displays this signal as a color image on the Cl11-. .

A normal color television receiver is often used as a color display to display this color image.
For this reason, parts such as thick luni 1 monitors, etc., have N”
Many of them generate a composite color video signal in accordance with the standard color TV gene system of one-way shade, that is, a signal in which a luminance signal including composite number 101A and a carrier color signal are combined.

Composite color image (m signal is normal color alevisimeter) generated by this personal computer etc. is received ('P!
, where if the signal is multiplied by the color signal and the minute! F
After being converted into 81 color difference signals by a brightness signal processing circuit and a carrier color (ij signal adjustment circuit), the matrix circuit converts them into three primary color signals of R, G, and B, which are then supplied to a CRT to produce a color image. will be displayed.

Here, color preview reception V! 1. How much brightness does it have?
) and the carrier color signal, for example, as shown in Figure 1 (
∆) is said to be the same as the one shown in Δ). , 14, the input terminal 1J supplies the incoming composite color video signal to a bandpass filter 2 and a bandstop filter 3. The bandpass filter 2 is centered on the 0 transmission frequency -Ct! = 0.
5M l-l Extract and output the carrier color signal in the 1 frequency band? rI: Output from child 4, band elimination filter 3 removes this carrier color I/H signal, takes out a luminance signal, and outputs it from output terminal 5.

However, a luminance signal remains in the carrier color signal extracted by the bandpass filter 2J, and in particular, high-frequency components included in sharply changing parts of the image such as characters are left behind.
7 It is demodulated in the same way as the color signal by the color sending signal demodulation circuit, resulting in cross-color interference, which causes color bleeding, etc. to be significantly avoided.
Although traps for color subcarrier frequencies are installed to reduce dot interference, high-frequency components of luminance No. 111 are also attenuated, resulting in lower resolution. Due to the influence of filter 3, there is an overshoot of 1- in the sharp change part of the luminance signal. 'I kun 1 ng (1ji 7
1 got worse - there was a drawback of Zurugasa.

In addition, as shown in FIG. 1(B), the composite color image stop;
9 circuits that reduce the signal to the undelayed composite color video signal and the composite color video signal delayed by 4 by 1 horizontal scanning period; 7.
There is a separation circuit which mixes them in an adder circuit 8 and outputs a carrier color signal and a vF signal signal from an output terminal 4.55.

But personal computers.

Composite color video signals generated in video games, etc., are based on the NTSC color system, for example, and the color subcarrier frequency is close to 111, which is 21-/7 (i3) of the horizontal scanning frequency b+. First, this difference between the frequencies (in the case of incomplete processing, it is not possible to completely separate the luminance signal and the carrier chrominance signal, dot interference, etc.)) is caused by scalar interference.
? This method had the disadvantage that it could not solve the problem of i reduction.

The present invention eliminates the above-mentioned drawbacks, and its fruits will be explained with reference to FIGS. 2 and below.

FIG. 2 shows a No. 1-1 ivy system diagram of an embodiment of the system of the present invention. In the same figure, 10 is "Versolil" MBikota,
j Rebigoo 1Xhp color j゛Issolei 1. : No. Care Device, 111. ．． 1 No. J Large) Shijiji ball 1 turn toss; (; There is a branch C. Color display Jin-go Hikari Gyuso-ma 10 has 1 [ρ] space 1) Bow generator 12, F
13 has been set up for J3, this is I
A color signal and a brightness signal are provided for the desired self-cleaning. When the general color is 15°C, the transport color A of the unit 12, U is supplied to the adder circuit 11, and if
J color feeding signal output*; outputted from 11 output terminal 15, and brightness signal outputted from addition circuit 14 (outputted from output terminal 16).

The adder circuit 14 adds and mixes the carrier signal p3 and the luminance signal to synthesize a composite color video signal '1'3 according to the standard color previsicon system, and outputs the composite color video signal '1'3 from the video signal output terminal 17.

Color alebijini 1-in hoe machine 11 has a horn terminal 19 ~
21)'X is provided, and the above-mentioned carrier color signal output terminal 15 and
The luminance signal output terminal 16 and the pyroxene signal input terminal 20 are connected. This carrier color signal output terminal 19,
The general color feed signal Y) of Jζ is supplied to a carrier color signal demodulation circuit 22 and demodulated therein, and the extracted fin color difference signal is supplied to a 7-trix circuit 23. Also, brightness (;; sunset)
The measurement signal from the J terminal 20 is supplied to the luminance signal processing circuit 24, where it undergoes processing such as amplification, and the i'7 luminance signal is sent to the 7-trix circuit 23 as fjj 414. 71-RiX circuit 231U color difference signal rF degree Buddha gJ
, R, G, and B Niharamura signals are f'1, and these are CF.
≧T25, a color image can be displayed on the CRT 25.

In this way, the color signals and brightness signals transmitted from the color signal generator 1 are separately received by the color television receiver (the carrier color signal demodulation circuit 22) without being combined. .Brightness A No. 8 (Since it is supplied to the qB port circuit 4, it is not subject to cross color interference or dot interference. Also, at this time, the brightness signal passes through a band elimination filter and is
Since the brightness has been revised, the raccoon circuit 24 has been sufficiently processed to the high range.
7! Desarushi's answer is ``It's C'gi to raise Gumaro,''
Also, in order to expand the signal band by demodulating the 11 Okigun signal in 1C and demodulating the circuit 22, the solution is 1/(1 degree).
It is possible to do so.

J: Input width: 21) On the other hand, the composite color video f9 is supplied to the platform, and this composite color video signal is 1) 1 (A) or ([3) Same as 1. l
:The IJ signal is supplied to the separation circuit 26 of the 41-1 configuration, where it is image-detected and then separated into the carrier color S and the luminance A1, and the latter carrier color signal is the carrier color f3 (] Demodulation circuit 2
2, and the luminance signal is supplied to a luminance processing circuit 24 and thereafter processed in the same manner as above.
, 25th Saturday, color images will be displayed. This allows the composite color video signal from the output terminal 17 of the color display signal generator 10 to be connected to this (1 When using a color display generator without output terminals 15, 16, the composite color video signal generated by this device can be supplied to the human horn terminal 21 and used in the conventional manner.

As described above, the color display system according to the present invention combines the generated luminance signal S signal and the 110 color transmission signal (U signal) to output a composite color video signal (S; signal output signal). The brightness is 16 on the terminal, and the fading is 1 on 11.
．． ζ bow people output brightness 4j month output ji57i child, 1
Equipped with sharp color 1 output terminal (J color display 1)
The No. 11 generator 6 separates the composite color video signal that entered the poor signal input terminal into a brightness 4 signal and a UQ transmission signal and converts it to brightness.z m J! 11 circuit, the Ia transmission signal demodulation circuit supplies the received luminance signal and the color difference signal to the matrix circuit as primary color signals to display a color image on the CRT, and also displays the incoming luminance signal and carrier color borrowed J respectively. Brightness Shintandokoro J! l'! Circuit, II3. Connect the brightness signal input terminal and the brightness signal input terminal directly to the demodulation circuit. 110) Color fim Q output Q;): Child transport color 8 input terminal 4
Connected and made 4B4 Ikome, Teru 1. (((j1 and conveyance color 8 are not mixed for 9 minutes, and for this reason, they receive L1 scalar interference, driver 1~ interference, and image quality ringing and overshoot occur. The advantage of R-Saru is that it can produce 4+7 bright color images with high brightness and color saturation without any distortion.

[Brief explanation of drawings]

Figure 1 (△) and (B) are the circuit diagrams of each side of the circuit, ε1'
Figure i2 is a block system diagram of one embodiment of the system of the present invention. 1.19-21...Input terminal, 4+ 5.1 b~1
7... Output terminal, 10... Color display 1,
No. 1 production equipment, 11...Kanj Revisin receiver,
12...IIQ color feeding Jinkyu generator, 13...Shinba eyes J
- No. 1 generator, 1/I... addition/stop circuit, 22... carrier signal bow 1 (adjustment circuit, 23... matrix circuit, 24...
・Brightness signal processing circuit, 255...CR, T, 2G・
...Separation circuit. Written amendment to the procedure Mr. Kazuo Wakasugi, Commissioner of the Patent Office (Mr. Patent Office Examiner) 1, Indication of the case 2, Name of the invention Color display system 3, Patent of the person making the amendment Applicant's address, m221 Kanayo Ward, Yokohama City, Kanagawa Prefecture 3-12 Moriyacho Name (432) Victor Japan Co., Ltd. Representative: President Toshishi Shishi ＞m - Part 4, Agent 5, Date of amendment order Voluntary amendment 6, Subject of amendment Claims of Book 11I , detailed description of the invention, and brief description of the drawings. 7. Contents of correction (1) 明l0Il'! In the middle, the description in the scope of claims is amended as shown in the attached sheet. ■ Same, page 2, lines 6-7, page 5, line 13, 6
Page 6th line, page 7 line 3, page 9 line 3 and page 9 line 1
Correct the "color preview receiver" listed in the 9th line to "color display monitor." (3) "Rinki" in the 9th line of page 2 is corrected to "Ringi". (4) Same, page 3, line 17, “±0.5” is changed to “0.
5”. Cb) "Kunking" in lines 11 and 12 of page 4 is corrected to "ringing". 6) Correct "1J:su" in the second line of page 7 to 4 from rlo. Ibid., page 7, lines 12 to 13, "in 1 or..." shall be amended as follows. [Here, if the color display signal generator does not output the output terminals 15 and 16, the composite color video signal generated by the color display signal generator 5 is supplied to the input terminal 21 of the color display monitor 11. (8) Same, negative] Page 7, lines 15 to 16, 1 Here...
・Delete "after". (9) Same, page 7, line 20, replace “by this” with “ma1”.
] Ton 111 Correct. (10) Same, negative) Page 8, lines 4 to 7, “In this...
...21" will be corrected as follows. 1--The image of this color television receiver (on the Kumi signal input terminal) (11) Correct "Rinki" in the 8th line of page 9 to "Ringi".Claim 1: The generated luminance signal and A video signal output terminal 41 is connected to the video signal output terminal for combining the carrier color signal and outputting the composite color video signal.
Then, a color display signal generator is provided with a moderation signal output terminal and a carrier color signal output terminal that output the luminance signal and the WI color feeding signal, respectively, and a composite color video signal inputted to the video signal input terminal is used to output the luminance signal and the WI color feeding signal. The signal is separated into a carrier color signal, and the luminance signal is processed and supplied to the carrier color signal demodulation circuit, and the obtained luminance signal and color difference signal are used as primary color signals in a helix circuit to display a color image on the CRI. A color display monitor is provided with a luminance No. 5 input terminal and a carrier color signal input terminal for directly supplying the luminance signal and the carrier color signal input thereto to the luminance signal processing circuit and the carrier color signal demodulation circuit, respectively, A color display system characterized in that the luminance signal output terminal and the luminance signal input terminal are connected, and the carrier color signal output terminal and the carrier color signal input terminal are connected. ” Procedural amendment September 1980 140 Kazuo Wakasugi, Commissioner of the Patent Office (Examiner of the Patent Office) 1. Indication of the case Patent Application No. 229587 of 1987 2. Name of the invention Color display system 3. Make amendments. Applicant's Patent Address, S22] 12 Moriya-cho 3-1, Kanayō-ku, Yokohama-shi, Kanagawa Prefecture Name (432) IEI Hon Victor Co., Ltd. Representative: Managing Director, Shinji Department 4, Agent Voluntary Amendment 6, +li positive M-1 elephant drawing. 7, 7 City 11-) (C) In Figure 2 of the drawing, ↑,' marked with the Teruuma code generator.
The I-bow "12" is a copy of the attached drawing, and it looks like it's old, and it's "13"
Tonyama i11zuru.

Claims (1)

[Claims] 'IN student 7i! The video signal output terminal 4 which combines the luminance signal and the carrier color signal and outputs a composite color video signal, outputs the luminance signal and the general color signal 8, respectively. A color display signal generator is provided with an output terminal and a carrier color signal output terminal, and a composite color image F'y i'jf; S inputted to the video signal output terminal is separated into a luminance signal and a carrier color signal. The luminance signal and color signal obtained by supplying the luminance signal processing circuit and carrier color signal demodulation circuit to the luminance signal processing circuit and the carrier color signal demodulation circuit are respectively used as primary color signals from 71 to Rix circuit C.
-1-j Second, the 7J color image is displayed, and the incoming luminance eclipse signal and carrier color signal are processed by the luminance signal 8 processing circuit, 1
1 + 23
1. A color display system characterized in that an n-large input terminal is connected and a color output terminal is connected to an input terminal for transmitting a color.