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. 27, 2009
Filed:
Apr. 04, 2005
Lizhong Zhu, Waterloo, CA;
Yihong Qi, Waterloo, CA;
Michael Corrigan, Waterloo, CA;
Krystyna Bandurska, Waterloo, CA;
Ying Tong Man, Kitchener, CA;
Lizhong Zhu, Waterloo, CA;
Yihong Qi, Waterloo, CA;
Michael Corrigan, Waterloo, CA;
Krystyna Bandurska, Waterloo, CA;
Ying Tong Man, Kitchener, CA;
Research In Motion Limited, Waterloo, Ontario, CA;
Abstract
A mobile wireless communications device and associated method of making same includes a housing and circuit board having a ground plane. Radio frequency (RF) circuitry and a processor are carried by the circuit board and operative with each other. An antenna is carried by the housing and operative with the RF circuitry. Audio circuitry is carried by the circuit board and operative with the RF circuitry and processor. An audio transducer assembly such as a receiver is carried by the circuit board and engages audio circuitry for carrying audio signals between the audio circuitry and speaker. A filter is mounted at the speaker for blocking RF energy from the antenna through the speaker to the ground plane and decoupling the antenna from the speaker and any other components on the circuit board to minimize any detuning of antenna impedance match and degradation in antenna gain.