Orbit Reader 20
– User guide
Version 2.10
Orbit Research
Confidential and Proprietary Information
28
read. Use the command to quickly switch back to the Editor. Then close the
Editor to return to the title you are reading. This command has no effect if you are
already editing a file. The device displays the error message "-- File not found"
when no previous file has been opened. Press Select twice to return to the file
you were reading.
14.2 Power Move Forward and Back
Orbit Reader 20's power move commands provide a quick means of
moving/searching through large sections of a file to find a known location in the
document. A power move operates by using boundaries and moving 50%
between them with each press of the key command. In essence, by using a
power move to search within a file, you are drilling down to the information using
a binary command. When you press Dot 8 + Down Arrow or Dot 8 + Up Arrow,
the Reader moves in the following ways:
On the first press, the cursor moves half way between the current position and
the start (Dots 8 + Up Arrow) or end (Dots 8 + Down Arrow) of the file, which act
as the boundaries for the power search.
Subsequent presses treat the moved-from position as the new boundary in that
direction. So, if you are at the beginning of the file (or 0%) when you press the
Dot 8 + Down Arrow, the Reader moves the cursor to half way between 0% and
100%. You are now at 50%, and it becomes one of the boundaries. The initial
boundary is at the original position of 0%. Therefore, if you press Dot 8 + Up
Arrow, you move half way between 50% and 0% to end at 25%. Or, if you press
the Dot 8 + Down Arrow, you move half way between 50% and 100% to end at
75%.
Each time you press contiguous Dot 8 + Up Arrow or Dot 8 + Down Arrow keys,
the Reader shows the percentage in the first few cells of the display line and fills
the rest with the text at that position. This continues until you press something
other than Dot 8 + Up Arrow or Dot 8 _ Down Arrow or a Panning key. See
14.3 Find Braille
To find specific braille text, use the Find command (Space + F). Orbit Reader 20
responds by opening a blank input field (see
which is indicated by Dots 7 and 8. By default it shows the text at current cursor
location in edit box. Unlike the Power Move, which searches by known location of
text, the Find command searches the entire file for instances of the braille text
you enter in the input field. If you had searched for something previously, that
text appears in the Edit Box with your cursor at the end. See the
To find a word, press Space + F to enter the Edit Box. Type the braille text you
wish to find, then press Dot 8 to start the search moving forward in the file. To
