Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masayoshi Sahara0
Akira Miki0
Date of Patent
May 10, 2011
0Patent Application Number
114322250
Date Filed
May 11, 2006
0Patent Primary Examiner
Patent abstract
A sound reproducing apparatus which can be relatively inexpensive as a whole and also be simple in construction with reduced wiring even in the case where many speakers are used. Pulse-width modulated (PWM) pulses are generated based on respective audio signals for multiple-channel speakers. PWM pulses are time-division multiplexed and amplified, and then output as digital driving signals. The multiple-channel speakers are selectively turned on/off such that the digital driving signals are supplied to the respective multiple-channel speakers of corresponding channels.
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