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:
May. 24, 2011
Filed:
Oct. 31, 2007
Markus Gustav Agevik, Malmo, SE;
David Johansson, Malmo, SE;
Anders Lundquist, Malmo, SE;
Anders Hansson, Klagerup, SE;
Markus Gustav Agevik, Malmo, SE;
David Johansson, Malmo, SE;
Anders Lundquist, Malmo, SE;
Anders Hansson, Klagerup, SE;
Sony Ericsson Mobile Communications AB, Lund, SE;
Abstract
A device and method for identifying an accessory device connected to a first port and a second port of an electronic device by determining an impedance of the accessory device across the first port and the second port is provided. The electronic device generally includes a first port (e.g. a universal serial bus) configured to receive a first connector from an associated accessory device and a second port (e.g. an audio port) configured to receive a second connector from the associated accessory device. The electronic device includes circuitry coupled to the first port and the second port for determining an impedance associated with the accessory device as measured across the first port and the second port. An identification of the accessory device is then made based on the impedance of the electronic device.