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:
Nov. 22, 2011
Filed:
Jan. 26, 2006
Applicant:
Ian S. Dobie, Swindon, GB;
Inventor:
Ian S. Dobie, Swindon, GB;
Assignee:
Plantronics, Inc., Santa Cruz, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 9/00 (2006.01); H04M 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Systems for a loss of power detection for headset amplifiers are disclosed. The system generally includes a headset and headset amplifier. The headset amplifier includes a switch for electrically connecting the headset and a telephone apparatus. The switch is closed when the headset amplifier is in a powered status and the switch is open when the headset amplifier is in a powerless status.