Huawei technologies co., ltd. (20240106497). NEAR-FIELD COMMUNICATION CHIP, PHASE SYNCHRONIZATION METHOD, AND ELECTRONIC DEVICE simplified abstract
NEAR-FIELD COMMUNICATION CHIP, PHASE SYNCHRONIZATION METHOD, AND ELECTRONIC DEVICE
Organization Name
Inventor(s)
Xuesong Chen of Singapore (SG)
Theng Tee Yeo of Singapore (SG)
NEAR-FIELD COMMUNICATION CHIP, PHASE SYNCHRONIZATION METHOD, AND ELECTRONIC DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240106497 titled 'NEAR-FIELD COMMUNICATION CHIP, PHASE SYNCHRONIZATION METHOD, AND ELECTRONIC DEVICE
Simplified Explanation
The present disclosure relates to a communication technology innovation involving a near-field communication (NFC) chip, a phase synchronization method, and an electronic device to quickly synchronize a transmitted signal of an NFC card device with a carrier of an NFC card reader.
- The NFC chip includes a processing circuit that:
* Determines a first carrier frequency offset between a local clock signal and a carrier clock signal. * Generates a first frequency control word based on the first carrier frequency offset. * Utilizes a phase-locked loop to generate a first clock signal based on the local clock signal and the first frequency control word. * Employs a phase alignment circuit to perform phase selection on the first clock signal based on the carrier clock signal to obtain a second clock signal, which is then sent to a transmitter circuit.
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- Potential Applications of this Technology
- Contactless payment systems - Access control systems - Data exchange between devices
- Problems Solved by this Technology
- Ensuring quick and accurate synchronization of NFC signals - Enhancing the efficiency of NFC communication - Reducing the likelihood of signal interference
- Benefits of this Technology
- Improved user experience with faster NFC transactions - Enhanced security through reliable signal synchronization - Increased reliability of NFC-enabled devices
- Potential Commercial Applications of this Technology
- Enhancing NFC Communication Efficiency for Secure Transactions
- Potential Commercial Applications of this Technology
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- Possible Prior Art
One potential prior art in the field of NFC technology is the use of phase-locked loops for signal synchronization in communication devices. These systems have been utilized to ensure accurate timing and frequency control in various wireless communication applications.
- Unanswered Questions
- How does this technology impact the power consumption of NFC-enabled devices?
- Unanswered Questions
The abstract does not provide information on the power efficiency of the NFC chip and its impact on the overall power consumption of electronic devices.
- Are there any limitations to the range of synchronization achievable by this technology?
The abstract does not address the potential limitations in the range of synchronization between the NFC card device and the NFC card reader.
Original Abstract Submitted
the present disclosure relates to the field of communication technologies, and provide a near-field communication (nfc) chip, a phase synchronization method, and an electronic device, to quickly synchronize a transmitted signal of an nfc card device with a carrier of an nfc card reader. the nfc chip includes a processing circuit configured to: determine a first carrier frequency offset between a local clock signal and a carrier clock signal, and generate a first frequency control word based on the first carrier frequency offset. the carrier clock signal is determined based on a received signal received by the nfc chip. the nfc chip further includes a phase-locked loop configured to generate a first clock signal based on the local clock signal and the first frequency control word. the nfc chip also includes a phase alignment circuit configured to perform phase selection on the first clock signal based on the carrier clock signal to obtain a second clock signal, and send the second clock signal to a transmitter circuit.
