Miniature keyboard with sliding keys

• US 5,383,735 A
• Filed: 07/21/1994
• Issued: 01/24/1995
• Est. Priority Date: 07/23/1993
• Status: Expired due to Fees

• Current Assignee: Smith Corona Corporation (Pubco Corporation)
• Original Assignee: Smith Corona Corporation (Pubco Corporation)
• Inventors: Smiley, Gregory W.
• Primary Examiner(s): Wiecking, David A.
• Assistant Examiner(s): KELLEY, STEVEN SHAUN
• Application Number:
  US08/278,195
• Time in Patent Office: 187 Days
• Field of Search: 400/83, 400/100, 400/472, 400/473, 400/479, 400/485, 400/486, 400/492, 345/168, 345/170, 345/173, 345/184, 341/21, 341/22, 341/23, 340/825.19
• US Class Current: 400/479
• 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: G06F 3/0236 using selection techniques to select from displayed items
• CPC Class Codes: G06F 3/0238 Programmable keyboards key guide holders G06F3/0224
• CPC Class Codes: H01H 2025/004 the operating member being depressable perpendicular to the other directions
• CPC Class Codes: H01H 25/002 having an operating member rectilinearly slidable in different directions

Abstract

A miniature keyboard assembly for generating code signals representative of selected characters and functions. The assembly including at least one but preferably, two glide keys, each coupled to a depressible keybutton for controlling the movement of its respective keybutton. In one embodiment, each keybutton base carries an electrically conductive layer and is slidable on a membrane panel having thereon a plurality of signal code generating switches. The keybutton being movable along orthogonal axes in response to movement of the glide key. Each keybutton extends upwardly through a longitudinal slot opening in a lateral slide support member and then through a fitted opening in an indicator panel. The indicator panel also include an indicia marker which underlies a transparent keyboard panel and is visible therethrough. Finger movement of the glide key causes the marker to indicate the character or function on the keyboard representative of the signal code to be generated by the switch over which the keybutton is positioned. Depression of the keybutton results in the activation of the switch and the generation of the selected signal code.

Claims

1. An electronic device for storing characters in memory comprising a liquid crystal display touch panel having a plurality of contacts thereon being associated with characters to be displayed and stored, at least two keybutton each movable in at least a horizontal and vertical direction in relation to said contacts on said liquid crystal display touch panel and switch means operable to cause the character associated with the position of each of the keybuttons on the liquid crystal display touch panel to be stored in memory.

2. An electronic device for storing characters in memory according to claim 1 wherein indicating means on said liquid crystal display touch panel indicate the character associated with the position of each of the keybuttons on the liquid crystal display touch panel.

3. An electronic device for storing characters in memory according to claim 1 including means having a horizontal opening for guiding each of the keybuttons in a horizontal direction and the keybuttons extending through the horizontal opening.

4. An electronic device for storing characters in memory according to claim 1 wherein a spring urged ball bearing is located beneath each of said movable keybuttons for movement on said liquid crystal display touch panel.

5. An electronic device for storing characters in memory according to claim 1 including a glide key for moving each of the keybuttons in a horizontal and vertical direction.

6. An electronic device for storing characters in memory according to claim 5 wherein each of the keybuttons extends through an opening in the glide key for movement therewith.

7. An electronic device for storing characters in memory according to claim 1 including a key housing having an opening through which each of the keybuttons extends for movement therein.

8. An electronic device for storing characters in memory according to claim 1 wherein the key housing has an opening through which the liquid crystal display touch panel may be viewed.