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. 02, 2019
Filed:
Jun. 04, 2018
Motorola Solutions, Inc., Chicago, IL (US);
Javier Alfaro, Miami, FL (US);
Kurt S. Fienberg, Plantation, FL (US);
Daniel Landron, Sunrise, FL (US);
Kevin D. Elliott, Weston, FL (US);
David Corvino, Parkland, FL (US);
Hua Li, Plantation, FL (US);
MOTOROLA SOLUTIONS, INC., Chicago, IL (US);
Abstract
A portable communication system () maintains mission critical functionality. An accessory () and a handset () are tethered and interoperate such that the accessory operates as the primary controlling device and the handset operates as a secondary device. The accessory () contains a main applications processor () that handles non-mission critical functions. The accessory further contains a mission critical processor () for handling mission critical functions of transmit and receive audio as well as PTT and emergency. In response to a failure of the mission critical processor (), the mission critical functions are maintained by handing over the mission critical functions to the non-controlling device in a manner transparent to the user. The handover is triggered in response to status changes of the mission critical processor or as a result of battery depletion. Audio paths are re-routed through backup paths () negating reliance on processors of the accessory ().