QR코드는 1994년 덴소-웨이브라는 일본 회사에서 개발되었고, QR은 Quick Response라는 뜻이다.
다음과 같은 모양을 갖고 있다.


일본에서는 매우 보급되어 있어서 일본의 휴대폰은 QR코드 리더기가 기본 내장되어있다.
특허권 자체는 덴소-웨이브가 여전히 소유하고 있으나 라이센스의 제약을 받지 않고 무료로 사용할 수 있다는 장점이 있다.

그렇다면 QR코드는 얼마만큼의 용량을 담을 수 있을까?

숫자는 최대 7089개 까지.
영문은 4296자
바이너리(한글포함) 최대 2953자
한자나 일본의 가나 : 1817자



Eminem의 신보 중 You're never over의 가사 중 verse1과 verse2를 통째로 담을 수 있는 분량이다.

[Verse 1]
If Proof could see me now, I know he’d be proud
Somewhere in me deep down, there’s something in me he found
That made him believe in me, now no one can beat me now
You try, it’ll be them doors on Dre’s Phantom, believe me clowns
That means suicide homie, you’ll never throw me
Off of this course, blow me
Bitch I do this all for the sport only
But I want it all, I’m not just talking awards homie
And the balls in my court and it’s lonely
On top of the world when you’re the only
One with the balls and your shorts
To leave them jaws on the floor with no re-morse,
remember that when they get to doggin’ you boy homie
And the balls in my court and it’s lonely
On top of the world when you’re the only
One with the balls and your shorts
To leave them jaws on the floor with no re-morse,
remember that when they get to doggin’ you boy homie
So y’all can just get to bloggin’ about bologna
I’m not gonna stop the saga continues,
no stoppin’ the force Obi,
I’m moppin the floors with them,
I keep tryna pass it, but they keep on droppin’ the torch
and it won’t be, long til this sport is O-V-E-R,
Just Blaze and me, we are knockin’ them doors and no we
ain’t pumpkins on Halloween but we’ll show up on your porch, so be
careful what you say, there ain’t no punks over here so follow me
Through the fog like I’m S-N-double-O-P
Let me guide you through the smoke G
If only I wasn’t travellin’ down this road by my lonely
No one who knew me like you will ever know me
I don’t think you understand how much you meant to me

[Verse 2]
For you, I wanna write the sickest rhyme of my life
So sick it’ll blow up the mic, It’ll put the dyna in mite
Yeah it’ll make the dopest MC wanna jump off a bridge and shit hisself
Tap dancin’ all over the beat, it’ll jump off the page and spit itself
Yeah it’s the best thing I could do right now Doody for you is to rap
SO Imma fuck til I die, yeah Imma do it to death
And itstead of mourning your death, I’d rather celebrate your life
Elevate to new height, step on the gas and accelerate, Imma need two mics
Cuz the way that I’m feelin’ tonight, everything I can just do right
There’s nothing that I can do wrong, I’m too strong and I’m just too hyped
Just finished the rhyme and buss it’, excuse the corny metaphor
They’ll never catch up (ketchup) to all this energy that I’ve mustered (mustard)
So God just help me out while I fight through this grievin’ process
Tryna process this loss is makin’ me nauseous
But this depression ain’t takin me hostage
I’ve been patiently watchin’ this game, pacin’ these hallways
You had faith in me always
Proof you knew I’d come out of this slump, rise from these ashes
Come right back on they asses, and go Mike Tyson on these bastards
And Imma show ‘em, blow ‘em out the water slaughter ‘em homes
I’mma own so many belts the only place they can hit me is below ‘em
Homie I know I’m, never gonna be the same without you
I never woulda came in this game, I’m going insane without you
Matter of fact it was just the other night, had another dream about you
You told me to get up, I got up, I spread my wings and I flew
You gave me a reason to fight, I was on my way to see you
You told me nah Doodi you’re not layin’ on that table I knew
I was gonna make it, soon as you said think of Hailie, I knew
There wasn’t no way that I was ever gonna leave them babies, and Proof
not many are lucky enough to have a guardian angel like you
Lord I’m so thankful, please don’t think I don’t feel grateful, I do
Just grant me the strength that I need, for one more day to get through
So homie this is your song, I dedicate this to you
I love you Dood

이정도는 기본으로 담는다.

Verse1을 QR코드로 변환하면 아래와 같다.
(뭔가 좀 부담스럽다. 데이터 용량이 커질수록 문향이 복잡해지는 것을 확인할 수 있다.)


<참고> 위키백과 풀텍스트 : http://en.wikipedia.org/wiki/QRcode

Posted by Ozahir
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