[jarpineh]

I sometimes wonder if chorded keyboard would be better for controlling the computer and keeping better posture against RSI issues. Not to mention more compact space compared to full keyboard. I seem to remember from a recording of the demo (and few writings on subject) that the keyset and mouse were used together for more powerful effect than either one alone.

What I haven't found out is how well a multilingual writer could use these. Do the chords rely on properties of particular language, like English. Does the chord order follow from how often you write letter a instead of x. Would another language be adaptable to same chords, or do you need to make an optimized version?

[rhet0rica]

As Don Hopkins sort-of says—the original chording keyboard (and most later units) just had you inputting a binary number, which would be added to 64 to get an ASCII codepoint. No attempt was made to optimize for letter frequencies in English at this stage of design—A was one key (00001) but E was two (00101).

Engelbart's style of chording keyboard barely escaped the Anglosphere. But a related invention, the stenographic keyboard, did; these are used for court reporting and live television captioning. They introduce a very different strategy for inputting text—operators of these input one full syllable at a time, phonetically, and the machine interprets the pronunciation according to a dictionary; thus in English the most common errors are homophones, which can be revised later from context. It requires quite a lot of training and practice to be proficient with them, and they are extremely language-specific.

[6SixTy]

Braille typewriters are also very much like Stenography, except Braille is actually designed to replace reading & writing rather than transcribing speech.

Though Braille does use two dots for E and one for A, with mostly the same letter frequency in both it's native French and English.

Also very much surprised his keyboard didn't fit into either ASCII nor EBCDIC encoding. Granted, both of those barely existed at the time but still.

[jarpineh]

Yeah, I have probably conflated the two technologies somewhere along the way. And if I had read all the way to the footnotes of the original article I'd have found the keyset's chords. They do are counting in straight binary, going from a-z in order. Add mouse buttons for modes to get uppercase, numbers and what not. Interesting really that such a simple scheme worked.

[ipv6ipv4]

I would hazard a guess that it would make RSI worse because it minimizes the kinds of hand motions to operate it. Alleviate RSI with a keyboard by constantly changing the position of your hands on the keyboard - the exact opposite of touch typing dogma. Pecking at your keyboard is healthier.

[jarpineh]

I'm no health expert, only an expert practitioner of my hands. Mostly I keep changing keyboards and positions. That small chorded keyset can be set to more natural positions and moved at will to wherever you can reach. You ostensibly don't need to even look at it. I'd assume you would be looking between the chord sheet for directions and what you're actually writing... A device like this Tap thing, which is attached to your fingers or wrist, allows even more freedom.

As for mouse, well, I guess a trackball is easier to move about, stick to chair arm or something. Touchpad might work also, but you require more estate for precision and gestures.

[DonHopkins]

Douglas Engelbart used a straightforward binary encoding scheme for the chord keyset:

Engelbart Explains Binary Text Input. Douglas Engelbart explains to co-inventor, Valerie Landau, and some blogger how binary can be used for text input.

https://www.youtube.com/watch?v=DB_dLeEasL8

Engelbart: Think about if you took each finger, and wrote a one on this one, a two on this one, a four on this one, and a sixteen on this one. And every combination would lead clear up to sixty three.

And so writing here like this the alphabet: A... B... C... D. E. F. G, H, I, JKLMNOPQRSTUVWXYZ!

https://news.ycombinator.com/item?id=43454343

The commercially available "TapXR" input device also functions as a mouse and gestural pointing device! It's a wearable tap glove that functions as both a bluetooth keyboard and mouse. I haven't tried it yet though, but it looks really cool.

https://www.tapwithus.com/

https://www.youtube.com/watch?v=sdm8FcsKeoM

A WRISTBAND THAT REPLACES Your Keyboard, Mouse & Handheld Controller TapXR was designed to help humans adapt to the next generation of personal computing.

A Unified Way To Interact With Your PC, Smartphone, Tablet, SmartTV, Projector, VR, AR & XR

80+ Words Per Minute

Input up to 10 characters a second with just one hand or go even faster with two.

150+ Customizable Commands

Remap any finger combination into your favorite shortcuts, triggers, key-binds and commands

2500+ Tap Layouts

Enjoy thousands of user-created Language, Utility, Coding, Production & Gaming TapMaps - or make your own!

8 Hours of Battery Life

Get a full day of input on a single charge. Only 1 hour to recharge from zero to full!

----

My previous post about an earlier version from about 7 years ago:

https://news.ycombinator.com/item?id=17122717

DonHopkins on May 21, 2018 | prev | next [–]

I just ran across a new device called "Tap", a wearable tap glove that functions as both a bluetooth keyboard and mouse!

https://www.tapwithus.com/

I've had any "hands on" experience with the Tap, but it looks very cool, like a modern version of Douglas Engelbart's and Valerie Landau's HandWriter glove!

I asked Valerie Landau about it (wondering if it was her company), but she hadn't heard of it before.

They have an iOS, Android and Unity3D SDK that appeared on github recently, so you can look at the code to see how it works:

https://github.com/TapWithUs

Does this look legit? Has anybody tried it?

If it works as advertised, I'd love to develop TapPieMenus that you can use in VR, mobile, desktop computers, and everywhere else!

I'm excited about the possibility of creating easy to use, fast and reliable pie menus for Tap that users can fully customize, and use with one hand in the same way that Douglass Engelbart described you could do with two hands using a mouse and a chorded keyboard:

>"Well, when you're doing things with the mouse, you can be in parallel, doing things that take character input. And then the system we had, it actually gave you commands with characters, too. Like you had a D and a W, and it says, "you want to delete a word", and pick on which word, and click, it goes. M W would be move a word. Click on this one, click on that one, that one could move over there. Replace character, replace word, transpose words. All those things you could do with your left hand giving commands, and right hand doing it."

It would be cool to have some tactile feedback, so the tutorial could train you to type out letters by vibrating your fingers with a piezo buzzer or something, and maybe it could even secretly spell out silent invisible messages to you while you were wearing it! And you could feel a different silent finger "ring tone" depending on who was calling you, then tap to answer to discard the call, or stroke with a TapPieMenu to send a canned reply.

enobrev on May 22, 2018 | parent | next [–]

LinusTechTips posted a decent review of the Tap a few weeks ago:

https://youtu.be/8za_4g5zCOM

[jarpineh]

Whoa. Thank you for the info dump. I'll see about making use of these.

That Tap device has moved from fingers to wrist, I see. Sadly it's out of stock. Plus getting niche devices outside US is expensive and warranty probably doesn't work.

[1] https://www.tapwithus.com/product/tap-xr/

Edit: that LTT video makes a good case for the device, if only in typical 'tube fashion.