Lineographic alphanumeric data input system

• US 20090073002A1
• Filed: 09/13/2007
• Published: 03/19/2009
• Est. Priority Date: 09/13/2007
• Status: Active Grant

• Current Assignee: Alfredo Alvarado
• Original Assignee: Alfredo Alvarado
• Inventors: Alvarado, Alfredo
• Granted Patent: US 8,174,409 B2
• Time in Patent Office: Days
• US Class Current: 341/22
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus

Abstract

An alphanumeric data input system for entering text into portable cellular phones or hand held computers by making linear traces or taps with a thumb or finger on a touch sensitive lineographic keypad. This keypad is conveniently located on the upper and left part of the cellular phone or the hand held computer in order to facilitate the natural motion of the thumb thus avoiding fatigue and strain of the same. This new system allows the user to enter operational commands on the keypad, as well as entering of letters of different alphabets such as the Latin Alphabet, Mathematical Greek and Russian Alphabets and possibly of alphabets of other foreign languages including Japanese, Chinese and Korean. This system can be used for entering a combination of letters to speed up the writing process, and enables the entering of punctuation marks, typographical symbols and a wide range of mathematical symbols. The present invention describes a combination of a portable cellular phone with a hand held computer provided with a large screen that can rotate 90 degrees to facilitate reading of the text.

Claims

1. A lineographic data input system for allowing a user to enter alphanumeric characters, numbers, and symbols into an electronic device, said lineographic input system comprising:

a keypad bordered by a raised frame, said keypad including a plurality of touch sensitive cells and a touch sensitive grid separating said cells, each of said cells and said grid adapted to generate an input signal when touched;

said keypad electrically connected to means for electronically processing input signals from said keypad and corresponding said input signals with alphanumeric characters, numbers, and symbols;

whereby data input may be entered into an electronic device by making short linear traces across the cells and grid thereby generating input signals corresponding to alphanumeric characters, numbers, and symbols.

2. A lineographic data input system according to claim 1, wherein said plurality of cells include twelve touch sensitive cells.

3. A lineographic data input system according to claim 1, further including four landmarks in the form of small triangular protuberances disposed in proximitiy to each side of said frame.

4. A lineographic data input system according to claim 1, wherein certain of said cells are adapted with light high relief circular marks corresponding to odd numbers.

5. A lineographic data input system according to claim 1, wherein said plurality of cells are configured in a four rows and three columns.

6. A lineographic data input system according to claim 5, further including a high relief line separating the first three rows from the fourth row.

7. A lineographic data input system according to claim 5, wherein the first three rows comprise an alphanumeric area, and the fourth row comprises a symbol-related area.

8. An electronic device adapted with a lineographic data input system for allowing a user to enter alphanumeric characters, numbers, and symbols into the electronic device, said electronic device comprising:

a keypad bordered by a four sided raised frame, said keypad including twelve touch sensitive cells and a touch sensitive grid separating said cells, said cells disposed in an array of four rows and three columns, each of said cells and said grid adapted to generate an input signal when touched by a user;

four small protuberances disposed in proximity to each side of said frame for providing tactile reference points to aid the user in positioning of the finger or thumb;

said grid including a raised portion separating the third and fourth rows;

means, electrically connected to said keypad, for electronically processing input signals from said keypad and corresponding said input signals with alphanumeric characters, numbers, and symbols;

whereby data input may be entered into an electronic device by making short linear traces across the cells and grid thereby generating input signals corresponding to alphanumeric characters, numbers, and symbols.