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US 9,853,481 B2Granted
Method for detecting load in wireless charging priority
AssigneeSamsung Electronics Co., Ltd.
InventorsKyung-Woo Lee, Chong-Min Lee, Hee-Won Jung, Keum-Su Song
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Abstract
A method for detecting a load in wireless charging is provided. The method includes storing predetermined transmission signal waveform information, transmitting a signal according to the predetermined transmission signal waveform information, detecting a waveform change in the transmitted signal, and determining whether a device exists based on the detected waveform change.
Claims20
A method for detecting a device in wireless charging, the method comprising:
- storing waveform information of a first power to be transmitted for detecting the device;
- generating the first power for detecting the device;
- sensing a second power being transmitted according to the generation of the first power;
- and
- detecting a device based at least in part on comparison of a waveform of the sensed second power and the stored waveform information of the first power.
2 more elements
A wireless power transmitter for detecting a device in wireless charging, the wireless power transmitter comprising:
- a memory to store waveform information of a first power to be transmitted for detecting the device;
- a controller configured to:
- generate the first power for detecting the device;
- sense a second power being transmitted according to the generation of the first power;
- and
- detect a device based at least in part on comparison of a waveform of the sensed second power and the stored waveform information of the first power.
3 more elements
Dependencies are inferred from the claim text.