Keyboard assembly and typing method

• US 4,940,346 A
• Filed: 04/01/1987
• Issued: 07/10/1990
• Est. Priority Date: 04/01/1987
• Status: Expired due to Fees

• Current Assignee: Don C. Liljenquist
• Original Assignee: Don C. Liljenquist
• Inventors: Liljenquist, Don C.
• Primary Examiner(s): Burr, Edgar S.
• Assistant Examiner(s): Hilten, John S.
• Application Number:
  US07/032,622
• Time in Patent Office: 1,196 Days
• Field of Search: 400/472, 400/486, 400/487, 400/82, 400/83, 400/103, 400/104, 400/105, 400/106, 400/107
• US Class Current: 400/487
• CPC Class Codes: B41J 5/10 Arrangements of keyboards , e.g. key button disposition
• CPC Class Codes: G06F 3/0219 Special purpose keyboards
• CPC Class Codes: H01H 2009/189 with a tactile symbol or indication, e.g. for blind people

Abstract

An improved keyboard assembly and method for typing for use with a device for processing symbolic information, such as a word processor, is disclosed herein. Generally, the improved keyboard assembly comprises a plurality of mutually adjacent keys, each of which is substantially covered by a visual pattern formed from a combination of shape and coloring. The visual pattern on each key is manifestly different from the visual pattern on each adjacent key in order to facilitate visual discrimination between keys. However, the visual patterns on keys in the same rows or columns share at least one distinctive design feature in order to assist the operator in properly orienting his or her hands over the keyboard. To further enhance both key discrimination and proper manual orientation over the keyboard, keys on every other row have different surface textures to provide distinctive tactile signals to the keyboard operator whenever the different-textured keys are touched. Finally, the keyboard assembly may include a document positioner located just above the keyboard so that the keyboard operator may peripherally see the visual patterns on the keys when looking at a document being copied. In the typing method of the invention, the visual pattern associated with each symbol typed is simultaneously displayed in order to reinforce the association of the symbol and the pattern in the mind of the operator. The improved keyboard assembly greatly expedites the learning of typing skills and reading skills by associating a distinct visual pattern with each letter of the alphabet in the mind of the operator.

Claims

1. An improved keyboard assembly for use with a device for processing alphabetical or numerical information, cmoprising a plurality of keys arranged in a plurality of mutually adjacent rows and columns, wherein each key corresponds to a selected alphanumeric symbol, and is substantially covered by a visual pattern formed from a combination of one of a plurality of color pattern schemes and one of a plurality of shapes wherein the combination of the color scheme and shape forming the visual pattern of each key is different from the combination of color scheme and shape forming the visual pattern on each adjacent key in order to facilitate visual discrimination between said keys, and wherein the shapes of the color schemes of the visual patterns are the same for each key in any given row in the same rows, but different than keys in no row or rows adjacent to said given row in order to assist a keyboard operator with proper manual orientation with respect to the keyboard while at the same time rendering adjacent keys different in the peripheral and near-focus vision of said keyboard operator.

2. The improved keyboard assembly of claim 1, wherein at least some of said keys further include different surface textures to provide a tactile signal to the keyboard operator whenever the different-textured keys are touched in order to assist the operator in maintaining a proper orientation between his hands and the keyboard.

3. The improved keyboard assembly of claim 2, wherein each key includes a finger engageable portion that is flanked by a base portion, and different surface textures cover at least some of the finger engageable portions of the keys.

4. The improved keyboard assembly of claim 1, wherein each key includes a finger engageable portion that is at least flanked by a base portion, and said visual portion covers said finger engageable portion.

5. The keyboard assembly of claim 1, wherein each key may correspond to more than one alphanumeric symbol, each symbol of which is indicated on the key on a portion thereof that is separate from the visual pattern that substantially covers the key.

6. The keyboard assembly of claim 1, wherein the keys in at least two columns include bar-shaped markings in order to assist the keyboard operator with proper manual orientation with respect to the keyboard by facilitating perception of the individual columns of keys in the keyboard.

7. The keyboard assembly of claim 1, further including a copyholder means and a display means for displaying what the keyboard operator types, wherein said copyholder means is disposed between said plurality of keys and said display means so that the operator may see the keys with his near-focus vision while looking at the copyholder means or display means with his focused vision.

8. An improved keyboard assembly for use with a device for processing alphabetical or numerical information, comprising a plurality of keys arranged in a plurality of mutually adjacent rows and columns, wherein each key corresponds to a selected alphanumeric symbol, and is substantially covered by a visual pattern formed from a combination of one of a plurality of color pattern schemes and one of a plurality of shapes, wherein the combination of the color scheme and shape forming the visual pattern on each key is different from the combination of color scheme and shape forming the visual pattern on each adjacent key, and wherein the shape of the visual patterns is the same for all keys in the same row, but different from that of keys in rows adjacent to any given row in order to assist the keyboard operator with proper manual orientation with respect to the keyboard while at the same time rendering adjacent keys perceptively different in the peripheral and near-focus vision of the keyboard operator.

9. The keyboard assembly of claim 8, wherein each key includes a finger engageable portion that is at least flanked by a base portion, and a visual portion covers a finger engageable portion.

10. An improved keyboard assembly for use with a device for processing alphabetical or numerical information, comprising a plurality of keys arranged in a plurality of mutually adjacent rows and columns, each key corresponding to a selected alphanumeric symbol and being substantially covered by a visual pattern formed from a combination of at least two design elements, each of which is readily perceptible in the peripheral and near-focus vision of a keyboard operator, the specific combination that forms the pattern on each key being perceptively different from the combination of design elements used in the visual patterns on all keys adjacent thereto in the peripheral and near-focus vision of said operator in order to facilitate visual discrimination between different keys, each row having one of said at least two design elements in common with all keys of said row and each column having the other of said at least two design elements in common with all keys of said column, no adjacent rows and columns having both design elements in common, thereby facilitating the proper orientation of the hands of the operator over the keyboard.

11. The improved keyboard assembly of claim 10, wherein said design elements include color scheme, and the shape of the outer edge of the color scheme.

12. The improved keyboard assembly of claim 11, wherein the shape of the outer edge of the color scheme is the same for keys in the same row, and the color scheme of the keys is the same for keys in the same column.

13. The improved keyboard assembly of claim 10, wherein at least some of the keys include different surface textures to facilitate tactile discrimination between said keys in order to further assist the operator in maintaining a proper orientation between his hands and the keyboard.

14. The improved keyboard assembly of claim 10, wherein each key includes a finger engageable portion that is at least flanked by a base portion, and a visual portion covers a finger engageable portion.

15. The improved keyboard assembly of claim 14, wherein each key may correspond to more than one symbol, each symbol of which is indicated on a separate part of the base portion.

16. The improved keyboard assembly of claim 15, wherein the finger engageable portion is raised relative to a base portion of the key.

17. The improved keyboard assembly of claim 16, wherein the base portion is rectangular, and said finger engageable portion is disposed substantially over the middle of the base portion, and each symbol that the key may correspond to is indicated in a separate corner of the base portion.

18. The improved keyboard assembly of claim 17, wherein each key may correspond to one of two different alphanumerical symbols which are separately printed in mutually opposing corners of the base portion of the key.

19. The keyboard assembly of claim 10, further including a copyholder means and a display means for displaying what the keyboard operator types wherein said copyholder means is disposed between said plurality of keys and said display means so that the operator may see the keys with his near-focus vision while looking at the copyholder means or display means with his focused vision.

20. An improved keyboard assembly for use with a device for processing information in symbolic form, comprising a plurality of keys arranged in mutually adjacent rows and columns, each key having a finger engageable portion surrounded by a base portion, the finger engageable portion being substantially covered by a visual pattern formed from a combination of at least two design elements including shape and coloring the specific combination of which on any one key results in a visual pattern that is perceptibly different in the peripheral and near-focus vision of a keyboard operator from the patterns substantially covering all keys adjacent thereto in order to facilitate visual discrimination between different keys, the visual pattern on all keys in any given row having a specific one of said two design elements of shape and color in common, and the visual pattern on all keys in a given column having a specific one of the other one of said two design elements of shape and color in common in order to assist the keyboard operator in perceiving individual rows and columns of keys, but no adjacent rows or adjacent columns having both, said design elements in common, thereby facilitating proper orientation of the hands of the operator over the keyboard, wherein each key may correspond to more than one symbol, each symbol of which is indicated on a separate part of the base portion.

21. An improved keyboard assembly for use with a device for processing information in symbolic form, comprising a plurality of keys arranged in mutually adjacent rows and columns each key having a finger engageable portion being substantially covered by a visual pattern formed from a combination of at least two readily perceptible design elements including shape and coloring, the specific combination of which on any one key resulting in a visual pattern that is perceptibly different in the peripheral and near-focus vision of a keyboard operator from the patterns substantially covering all keys adjacent thereto in order to facilitate visual discrimination between different keys, the visual pattern on all keys in a given row having a specific one of said two design elements of shape and color in common, and the visual pattern on all keys in a given column having a specific one of the other one of said two design elements of shape and color in common in order to assist the keyboard operator in perceiving individual rows and columns of keys, but no adjacent rows or adjacent columns having both of said design elements in common, thereby facilitating proper orientation of the hands of the operator over the keyboard, wherein different surface textures are provided on the finger engageable portions of keys in adjacent rows to further assist the keyboard operator in perceiving individual rows of keys.