Abstract: A system for configuring keyboards using both frequency and alphabetical bases and the resulting keyboards. The Keyboard Configuration System uses alphabetized frequency-based sets of keys in rows in order to fulfill the requirement that the keyboard must provide a key for each letter of the alphabet. The relevant alphabet is analyzed for letter use on a frequency basis. The frequency-ranked list is then broken into rows according to the number of rows needed for the keyboard. The resulting keyboards are then evaluated for demerits according to alphabetical succession that is backward relative to the alphabetical direction as well as alphabetical succession that is excess forward of zero or one key columns relative to the alphabetical direction. The system set forth here may be adaptable to any written language, especially those based upon phonetic alphabets. Further embodiments include keyboards for PDAs (Personal Digital Assistants).

Abstract: A system for configuring keyboards using both frequency and alphabetical bases. The Keyboard Configuration System uses alphabetized frequency-based sets of keys in rows in order to fulfill the requirement that the keyboard must provide a key for each letter of the alphabet. The alphabet is analyzed for letter use on a frequency basis. The frequency-ranked list is then broken into rows according to the number of rows needed for the keyboard. Each row resulting from the frequency-ranked list is then alphabetized independently so that each resulting key row represents a certain segment of the frequency-ranked list. Each key row is alphabetized separately. Each key row may be of different length and the resulting keyboard may have a number of configurations depending upon the relative shift between each of the independently arranged key rows. Generally, the longest key row determines the number of key row shifts, or cases, as left or right justification rules generally apply.

Abstract: A system for configuring keyboards using both frequency and alphabetical bases. The Keyboard Configuration System uses alphabetized frequency-based sets of keys in rows in order to fulfill the requirement that the keyboard must provide a key for each letter of the alphabet. The alphabet is analyzed for letter use on a frequency basis. The frequency-ranked list is then broken into rows according to the number of rows needed for the keyboard. Each row resulting from the frequency-ranked list is then alphabetized independently so that each resulting key row represents a certain segment of the frequency-ranked list. Each key row is alphabetized separately. Each key row may be of different length and the resulting keyboard may have a number of configurations depending upon the relative shift between each of the independently arranged key rows. Generally, the longest key row determines the number of key row shifts, or cases, as left or right justification rules generally apply.