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:
Jan. 15, 2002
Filed:
May. 05, 1999
Applicant:
Inventor:
John M. Clark, Fort Worth, TX (US);
Assignee:
RadioShack Corporation, Fort Worth, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 7/32 ;
U.S. Cl.
CPC ...
H04Q 7/32 ;
Abstract
A method and apparatus for transferring identification codes using magnetic coupling. A matching code is established by a microprocessor and is stored in the memories of a communications base unit and a mobile unit. When the mobile unit is placed in the base unit the central processing unit sends pulsed current to a coil in the base unit inducing a magnetic field. A Hall effect transistor in the mobile unit detects the induced changes in the magnetic field and transmits the pulse pattern to the base unit (handset) memory where it is entered as a new identification code.