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:
Aug. 09, 2005
Filed:
Jun. 08, 2002
Guan-wu Wang, Hsinchu, TW;
Yi-jeng Yang, Hsinchu, TW;
Wen-chung Liu, Taoyuan, TW;
Teng-chi Lin, Keelung, TW;
Guan-Wu Wang, Hsinchu, TW;
Yi-Jeng Yang, Hsinchu, TW;
Wen-Chung Liu, Taoyuan, TW;
Teng-Chi Lin, Keelung, TW;
Micro Mobio Corporation Taiwan Branch (USA), Hsinchu, TW;
Abstract
A mobile phone hand-free extension device includes a FM radio transmitter with an active frequency searching circuitry to utilize a vehicular FM radio receiver for reproducing the audio signals from the mobile phone. The active frequency searching circuitry in this invention automatically detects which frequency band the vehicular FM radio receiver is currently using and set the RF frequency of the FM transmitter to the detected frequency. The FM transmitter relays the audio signals from the mobile phone by transmitting the audio signals through radio wave to the vehicular FM radio receiver to be reproduced by the speaker of the receiver.