Mobile device for performing power line communication and operating method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsMINKYU KWON, GUNTAK KWAK
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Abstract
A mobile device includes; a power line communication (PLC) module that communicates data with an external device via a power line, receives a first preamble signal from the external device during a first preamble interval, receives a voltage signal as the data during a data reception interval following the first preamble interval, and demodulates the voltage signal to provide a demodulated voltage signal, a frequency/duty detector that detects a frequency and a duty of the first preamble signal, and a control circuit that performs signal a data determination operation on a demodulated voltage signal during a data period and using the first detected frequency and the first detected duty.
Claims20
An earphone charging system, comprising:
- an earphone device including a battery, a charging circuit, and a control circuit;
- and
- a charging device connected to the earphone device and configured to provide a voltage signal to the earphone device,
- wherein the earphone device receives the voltage signal through a first input terminal, the voltage signal including at least one preamble signal and data,
- wherein the charging circuit is coupled to the battery and the first input terminal and is configured to provide a charging voltage to charge the battery based on the voltage signal,
- wherein the earphone device communicates the data with the charging device while the battery is charged based on the voltage signal, the voltage signal having a value greater than a predetermined level, and the voltage signal swinging between a first level and a second level with respect to the data, and
- wherein the control circuit determines the data based on a logic high level or a logic low level of an internal signal demodulated from the received voltage signal.
An earphone device, comprising:
- a battery;
- a power line communication (PLC) module configured to receive, based on a voltage signal received from a charging device through a first input terminal, at least one preamble signal and data, and to demodulate the voltage signal;
- a charging circuit coupled to the battery and the first input terminal and configured to provide a charging voltage to charge the battery based on the voltage signal;
- and
- a control circuit configured to determine the data based on a logic high level or a logic low level of an internal signal demodulated from the received voltage signal,
- wherein the earphone device communicates the data with the charging device while the battery is charged based on the voltage signal, the voltage signal having a value greater than a predetermined level, and the voltage signal swinging between a first level and a second level with respect to the data.
A method of operating an earphone device including a battery, a charging circuit, and a control circuit, the method comprising:
- in a charging and communication mode, receiving, from a charging device through a first input terminal, a voltage signal including at least one preamble signal and data;
- providing, based on the voltage signal, a charging voltage to the battery to charge the battery;
- and
- determining the data based on a logic high level or a logic low level of an internal signal demodulated from the voltage signal,
- wherein the earphone device communicates the data with the charging device while the battery is charged based on the voltage signal, the voltage signal having a value greater than a predetermined level, and the voltage signal swinging between a first level and a second level with respect to the data.
Dependencies are inferred from the claim text.