Connective device, application program and content retrieval system

摘要

The invention provides a new method to supply a power to a device which is used by connecting to a mobile terminal. The invention also provides a connective device which is connected and enables the mobile terminal to reproduce contents such as music on the mobile terminal. The connective device stores unique identifying information and is detachably connected to the mobile terminal provided with a communication function. The connective device is having a plug terminal connected to an earphone socket of the mobile terminal, and the plug terminal acquires a power from an audio output channel of the earphone socket and output the identifying information via a microphone channel of the earphone socket.

主权项

1. A connective device incorporating an Integrated Circuit and the connective device is detachably connectable to a mobile terminal having a communication function; the connective device comprising:
a storage storing identification information unique to the connective device so that the connective device can be distinguished from all other connective devices; a plug terminal connectable to an earphone socket of the mobile terminal, the plug terminal having a right audio control (Rch) and a left audio control (Lch) for receiving an audio signal; a rectification circuit configured to shift a phase of sign waves of respective audio signals received through the right audio control and/or the left audio control, and negative components included in the sign waves are rectified and converted to positive components, and to compose the signals so that a voltage after conversion is zero or over; wherein the composed signal is used as a power to drive the Integrated Circuit; and wherein the connective device is configured to output the identification information through a microphone channel of the plug terminal to the mobile terminal by driving the Integrated Circuit with the power; and wherein the output identification information is configured to enable the mobile terminal to download content from the internet.