Electronic device and transaction method using the same

This invention describes a mobile phone that integrates a special coil system between its battery and the back casing. This system uses one coil to send payment information wirelessly, similar to tap-to-pay, and can also include a separate coil for wireless charging. The design focuses on the specific placement and structure of these coils within the phone.

Why it matters: Since 2019, the continuous push for thinner mobile devices and increased demand for both wireless charging and NFC payments make efficient internal space utilization critical. Advances in flexible electronics or magnetic shielding could now better support integrating multiple coils in this specific, constrained location.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedCustom coil module, device integration challenges

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