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. 12, 2016
Filed:
Jul. 07, 2011
Federico Guanziroli, Lentate sul Seveso, IT;
Sergio Pernici, Bergamo, IT;
Robert Nilsson, Lund, SE;
Jan R. E. Thimansson, Broby, SE;
Federico Guanziroli, Lentate sul Seveso, IT;
Sergio Pernici, Bergamo, IT;
Robert Nilsson, Lund, SE;
Jan R. E. Thimansson, Broby, SE;
ST-ERICSSON SA, Plan-les-Ouates, CH;
Abstract
An integrated circuit for processing audio and voice signals in a telephone is disclosed. The integrated circuit comprises an audio output port having a first and a second output terminal for connection to a first and a second input terminal, respectively, of a speaker. The integrated circuit further comprises an audio input port having a first and a second input terminal for connection to a first and a second output terminal of an audio input source. The integrated circuit also comprises at least one audio output path and one audio input path. Moreover, the integrated circuit comprises a test impedance, such as a resistor, (RT) for measuring an electrical impedance of the speaker.