Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 22, 2010
Patent Application Number
10089178
Date Filed
August 7, 2000
Patent Primary Examiner
Patent abstract
A control signal is generated by an operating means for being operated by a driver. In response to this control signal, an input signal to rear-seat headphones is temporarily attenuated or is replaced by another given signal or a transmission signal from the driver.
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