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:
Oct. 08, 2013
Filed:
Jun. 29, 2012
Applicants:
Paul S Swanson, Monument, CO (US);
Danny L Maupin, Colorado Springs, CO (US);
Inventors:
Paul S Swanson, Monument, CO (US);
Danny L Maupin, Colorado Springs, CO (US);
Assignee:
Fluke Corporation, Everett, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/24 (2006.01); H04M 3/08 (2006.01); H04M 3/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A phone test set provides modem capability in a hand held device, enabling bi-directional data communications. Demodulation is provided by sampling digitized incoming phone line signals at 4 times carrier frequency, and employing values representing 0 and 90 degree samples to extract the information signal.