Hi all on this thread,

I think you are confusing computer braille for literary braille and computer
braille on a braille display or a device that can truly write in 8 dot
braille.
Just to be clear, the dots 4,5,6 then 3,4,6 and all those are what is used
in a literary braille book to indicate that the following is meant to be in
computer braille so that someone could be reading an article in a magazine
that includes a web site or e-mail address so it would make sense.  They are
much like the number sign that indicates that the following letters are not
letters at all but numbers.

Otherwise a web address like www.humanware.com would  read as
wwwddhumanwareddcom because the person reading in literary braille would
think the periods were double d's.  

Terri Pannet's original question was about the differences between those
codes.  I'm not sure what was meant by "differences" other than what we've
all explained, so if it isn't clear yet, Terri should write again.

I hope that helped, rather than confused,
Richard


 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brian Lingard
Sent: Thursday, September 20, 2007 9:13 PM
To: braillenote@list.humanware.com
Subject: RE: [Braillenote] Capitalization In computer braille

Ottawa Canada

Dear Terri Pannet, Terry Powers and list:

There is Computer Braille and then there is Computer Braille.

I'll explain:

The 4-5-6 sign (underscore on a QT keyboard) to indicate the
following letter is capitalized is used in:

The Provisional Computer Braille Code as published by BANA, the
Braille Authority Of North America.

However the one-for-one correspondence Braille Code as used on
the BrailleNote and many other Braille devices is commonly called
Computer Braille, but is properly known as:

T-Braille.  The T stands for: Triformations, the predecessor
company to Enabling Technologies.

It has a one-for-one correspondence of Braille signs to computer
text and is not the same as the Provisional Computer Braille Code
by BANA.

In six-dot mode, T-Braille cannot distinguish between capital and
lowercase letters!  To get around this limitation, the Versa
Braille used shaking dots to denote a capital letter when in
"Computer Braille" mode, actually T-Braille mode, and other firms
went to eight-dot Braille, using dot 7, directly below dot 3 as
the capital indicator.

I think dot 8 is generally used to denote a control character and
both dots 7 and 8 being present generally indicate the position
of the cursor.

Provisional Braille Code by BANA would use the 4-5-6 sign to
denote a single capitalized letter, but if a whole word or
passage is capitalized, you would use the caps-lock sign which is
the 4-5-6 sign followed by another sign, I forget which.

There is also a caps unlock sign and I forget what it is as it
doesn't seem to be used that much.

Triformations got their name on the one-for-one correspondence
with text Braille Computer Code because they were pretty much the
first firm to sell a Braille embosser, the LED-1, which was later
replaced by the LED 120, with a nominal embossing speed of 120
characters per second.

While Humanware provides a Braille table for T-Braille, it should
be noted that in Europe and the United Kingdom, they often use
BAUK Computer Braille, a code devised by: The Braille Authority
Of The United Kingdom.

It differs from T-Braille in several ways, the most noticeable
being it uses dot-6 and the letter representing a digit to
represent numbers instead of using lower letters as in T-Braille
and Nemeth Math and Scientific Notation!

I have used both computer Braille codes and you quickly get the
hang of them when you encounter them.

On the BrailleNote or VoiceNote, you write a capital letter by
preceding it with a space plus the letter U on a BT keyboard when
in six-dot mode or by pressing the shift key and the desired
letter on a QT keyboard.
Of course you can always enter the character in eight-dot mode on
a BT keyboard.

So the answer you reproduced below is only partially correct!

Brian
Brian K. Lingard
email: [EMAIL PROTECTED]
Skype: ve3yiab2ji15
tel: +1 (613) 247-0665
New York NY Tel +1 (646) 797-2862
FAX +1 (613) 247-9998
Terry Powers wrote:

Someone asked how to capitalize in computer braille.  I came
across this while cleaning up.
Terry Powers

-----Original Message-----
From: Terri Pannett [mailto:[EMAIL PROTECTED]
Dear Richard,

I've been reading a web braille book which has symbols in it so
people reading 6-dot computer braille can distinguish between a
capital computer braille a and a small computer braille a.  The
book used a symbol called "capitalization indicator" followed by
the letter to be capitalized.  The "capitalization indicator" was
dots 4,5,6.

I thought that was interesting because, like you, I believed
everything in computer braille had to correspond one on one.

But the book had other two-cell signs, too: dots 4,5,6 3,4,6 is
the begin computer braille indicator and dots 4,5,6 1,5,6 is the
end computer braille indicator  4,5,6 3,4 is the end emphasis
indicator and
4,5,6 1,6 is beginning emphasis indicator.

Can anyone explain these differences to me?

I think it's a good thing these signs exist, because there are
many times when I can't write 8-dot braille.  My BN QT will only
write 6 dot braille and my brailler and slates won't do it
either.

Terri Pannett, Amateur Radio call sign KF6CA.  Army MARS call
sign AAT9PX, California

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