SPEAKER DIAGNOSTICS BASED UPON DRIVING-POINT IMPEDANCE
摘要
<p>A speaker (100) having a diagnostic capability, as well as a circuit (101) and related methods (500) for performing speaker diagnostics based upon a driving-point impedance are provided. The speaker includes a flexible cone (104) and a voice coil (106) connected to the flexible cone for driving the flexible cone so as to convert electrical signals into sound. The speaker also includes a signal source (110) connected to the voice coil for supplying a test signal to the voice coil. The speaker further includes a signal sensor (112) electrically connected to the voice coil for sensing a response signal occurring in response to the test signal. Additionally, the speaker includes a condition determining module (114) for determining a driving-point impedance based upon the response signal and for comparing the driving-point impedance to a predetermined impedance to thereby determine a condition of the speaker.</p>
申请公布号
WO2006065473(A2)
申请公布日期
2006.06.22
申请号
WO2005US42297
申请日期
2005.11.22
申请人
MOTOROLA, INC.;PAVLOV, PETER, M.;MCINTOSH, JASON, D.;YEAGER, DAVID, M.
发明人
PAVLOV, PETER, M.;MCINTOSH, JASON, D.;YEAGER, DAVID, M.