Patent EP0813328A2 successfully refreshed from Google Patents.
EP0813328A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Touch screen keyboard
Assignee: Nokia Oyj
•
Filing: 1997-06-13
•
Granted: —
•
Expires: 2017-06-13
Abstract
Abstract A removable cover for use with a personal communicator of the type having a touch screen display includes a plurality of key members which can be depressed by a user such that the underlying portions of the touch screen display are activated while simultaneously giving the user the feel and accuracy of an actual mechanical switching mechanism.
Inventors
- 👤 Reijo Paajanen
- 👤 Matti Marttila
- 👤 Janne Jormalainen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 13:58
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/23; H04M1/0202; H04M1/0206; H04M1/0208; H04M1/0214; H04M1/22; H04M2250/00; H04M2250/22
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
79 words
A cover for overlaying a touch sensitive surface comprising: a base member having a substantially planar configuration; a plurality of key members mounted to the base member for movement in an inward direction toward a personal communicator touch sensitive surface such that the position of each of said key members corresponds in registration to an underlying area of said touch sensitive surface representing a data input touch zone; and means for removable connecting the cover to a personal communicator.
Claim 2
Dependent Claim
60 words
A cover as defined in claim 1 further characterized in that said means for removable connecting the cover to a personal communicator includes a double hinge connection including an intermediate connecting piece connecting the cover to one end of a personal communicator such that the cover extends in a substantially planar condition over a touch sensitive keypad disposed below it.
Claim 3
Dependent Claim
32 words
A cover as defined in claim 1 or claim 2, further characterized in that said cover base member includes a plurality of recesses in which are disposed each of said key members.
Claim 4
Dependent Claim
63 words
A cover as defined in claim 3 further characterized in that each of said recesses includes a bottom stop surface confronting the undersurface of each of said key members; and each key member associated with each of said recesses being supported in a spaced orientation above said stop surface of said recess when the cover member is superimposed over the touch sensitive surface.
Claim 5
Dependent Claim
68 words
A cover as defined in claim 3 or 4, further characterized in that each of said recesses includes a mounting opening which extends through the undersurface of said cover member and communicates with an associated one of said recesses, each of said mounting openings having an elongated spring member disposed therein which connects to the key member at one and to a rubber pad at the other end.
Claim 6
Dependent Claim
53 words
A cover as defined in claim 5 further characterized in that said spacing between said undersurface of said key member and said recess bottom stop surface is such that the play in said elongated spring member is taken up substantially before said key member bottom surface engages the stop surface of said recess.
Claim 7
Dependent Claim
27 words
A cover as defined in any preceding claim further characterized by said means for removably connecting the cover to a personal communicator includes a snap on/off connection.
Claim 8
Dependent Claim
34 words
A cover as defined in any preceding claim further characterized in that said cover base member includes a plurality of said mounting openings each associated with one of said key members in said cover.
Claim 9
Dependent Claim
51 words
A cover as defined in any preceding claim in combination with a personal communicator, wherein the plurality of key members are mounted such that the position of each of said key members corresponds substantially in registration to an underlying area of said touch sensitive surface representing the data input touch zone.
Claim 10
Dependent Claim
21 words
The combination as set forth in claim 9 further characterized in that said cover is removably connected to the personal communicator.
Claim 11
Dependent Claim
43 words
The combination as set forth in claim 9 or 10 further characterized in that said personal communicator has a stepped profile at one end and said cover connects to said personal communicator at the end of the communicator opposite of the stepped portion.
Claim 12
Dependent Claim
68 words
The combination as set forth in any of claims 9 to 11 further characterized in that said cover is connected to the personal communicator through a two hinge connection and said two hinge connection includes an intermediate connecting piece connecting the cover to the other end of said personal communicator such that the cover extends in a substantially planar condition over the touch sensitive keypad disposed below it.
Claim 13
Dependent Claim
57 words
The combination as set forth in any of claims 9 to 12 further characterized by said cover being of a first given length and said communicator having an output screen of a second given length and said touch sensitive keyboard having a third given length such that said first and second given lengths are substantially the same.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.