If you start from scratch, aiming to create the most efficient possible thumb-chording that does not require looking at your SmartPhone, you can do a lot better than Braille. For example, let’s start with the fact that over 75% of all characters typed are one of SPACE,E,T,A,O,N,R,I,S,H,D,L,C,U (roughly in descending order of frequency).<\/p>\n
We can use the entire SmartPhone screen to lay out a 5×3 thumb keyboard with the following arrangement:<\/p>\n
| E<\/p>\n | U<\/p>\n | C<\/p>\n | L<\/p>\n | T<\/p>\n |
| →<\/p>\n | O<\/p>\n | H<\/p>\n | S<\/p>\n | →<\/p>\n |
| A<\/p>\n | I<\/p>\n | D<\/p>\n | R<\/p>\n | N<\/table>\n <\/center><\/p>\n This keyboard has already taken care of more than 3\/4 of all the characters you’ll ever type (we include two ways to type SPACE because it’s by far the most frequently typed character).<\/p>\n We can then get an additional 75 additional characters by “chording” with both thumbs at once, with the left thumb on one of the three left-most columns, and the right thumb on one of the three right-most columns. 75 characters is far more than needed to type all the letters, digits, punctuation and special characters on a keyboard.<\/p>\n I think this keyboard is going to be very fast to type on. Since all the other characters after those first 14 are used much less frequently, having them as two-thumb chords won’t slow you down very much.<\/p>\n Not only does this arrangement allow non-sighted people to type quickly, but it can also be used by anyone in a situation where you need to type quickly into your cellphone without looking at it (eg: during a meeting).<\/p>\n As is usual for keyboards for the non-sighted, there would be a tutorial mode that allows you to drag your thumbs over the keyboard to sound out each character.<\/p>\n","protected":false},"excerpt":{"rendered":" If you start from scratch, aiming to create the most efficient possible thumb-chording that does not require looking at your SmartPhone, you can do a lot better than Braille. For example, let’s start with the fact that over 75% of all characters typed are one of SPACE,E,T,A,O,N,R,I,S,H,D,L,C,U (roughly in descending order of frequency). We can … Continue reading “Optimized non-visual thumb-chording”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/6505"}],"collection":[{"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6505"}],"version-history":[{"count":12,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/6505\/revisions"}],"predecessor-version":[{"id":6518,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/6505\/revisions\/6518"}],"wp:attachment":[{"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |