Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1997-07-24
2000-07-04
Kuntz, Curtis A.
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
379428, 379433, 455550, 455 40, H04B 138, H04M 100
Patent
active
060851112
ABSTRACT:
The invention relates to a telephone comprising a keyboard which has keys to which various functions are assigned. According to the invention, the operation of certain keys is admitting of being blocked, and the function assigned to the non-blocked keys is admitting of being modified.
A device is admitting of being adapted to said telephone to mask the blocked keys to the user. Advantageously, this device is a housing of a shock-resistant material.
Applications: The invention permits of modifying and simplifying the man-machine interface of a telephone.
Reference: FIG. 1.
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Barnie Rexford N.
Halajian Dicran
Kuntz Curtis A.
U.S. Philips Corporation
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