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:
Dec. 09, 2014
Filed:
Jun. 29, 2012
Applicant:
Charles B. Harmke, Huntley, IL (US);
Inventor:
Charles B. Harmke, Huntley, IL (US);
Assignee:
Motorola Solutions, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2006.01); H04M 1/725 (2006.01);
U.S. Cl.
CPC ...
H04M 1/72527 (2013.01); H04M 1/72547 (2013.01);
Abstract
An interface () is provided between an accessory () and a radio () to enable three functions over a single signal line () thereby minimizing pin count in a connector (). The functions of accessory detect, one-wire memory and accessory PTT press are controlled over the single signal line () through the use of two comparators () and two voltage dividers ().