The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1987
Filed:
Sep. 12, 1986
Applicant:
Inventor:
Patrick J Marry, Cary, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
379 63 ; 379 58 ; 455349 ; 3403 / ; 3403 / ;
Abstract
A portable radiotelephone is disclosed in which an associated logic unit communicates via a data bus with an internal keypad and display and a detachable external keypad and display. Capability is provided for detecting the presence of the external keypad on the data bus and, in response to the detection, the information which would normally be communicated between the logic unit and the internal keypad and display is diverted to the external keypad and display. When the external keypad is detached from the data bus, communications between the logic unit and the internal keypad and display is reestablished.