COMMUNICATION ARCHITECTURE BETWEEN EAR BUD DEVICE AND CHARGING DEVICE BASED ON FEWER PINS

A controlling circuit, utilized in an ear bud device which can be charged by a charging device, includes a voltage detection circuit and a processing circuit. The voltage detection circuit is coupled to a power input pin of a communication interface between the ear bud device and the charging device...

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Bibliographische Detailangaben
1. Verfasser:	Chuang, Chia-So
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATION LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS PULSE TECHNIQUE SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A controlling circuit, utilized in an ear bud device which can be charged by a charging device, includes a voltage detection circuit and a processing circuit. The voltage detection circuit is coupled to a power input pin of a communication interface between the ear bud device and the charging device and used for detecting a voltage level of an analog power supply signal at the power input pin to generate a digital input signal. The processing circuit is coupled to the voltage detection circuit and used for receiving the digital input signal to obtain data information carried by the analog power supply signal outputted from the charging device.