Portable media player with common earphone transmission port...

Details Portable media player with common earphone transmission port... Portable media player with common earphone transmission port...

2006-08-29

2010-02-16

Flanders, Andrew C (Department: 2614)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

Reexamination Certificate

active

07664560

ABSTRACT:
A portable media player comprises an earphone transmission port, a detection circuit, a switch circuit, and a processor. The earphone transmission port mounted on the portable media player is electrically connected to a connector for receiving a signal or power transmitted from the connector. The detection circuit electrically connected to the earphone transmission port is used to detect a type of the connector for sending an informing signal. The switch circuit electrically connected to the earphone transmission port is used to switch between a signal inputting status and a signal outputting status according to the type of the connector. The processor electrically connected to the detection circuit and the switch circuit is used to receive the informing signal for turning on or off the switch circuit.

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