18418693. Near Field Communication NFC Apparatus and Open-Loop Control Method simplified abstract (HUAWEI TECHNOLOGIES CO., LTD.)
Contents
- 1 Near Field Communication NFC Apparatus and Open-Loop Control Method
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 Near Field Communication NFC Apparatus and Open-Loop Control Method - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Key Features and Innovation
- 1.6 Potential Applications
- 1.7 Problems Solved
- 1.8 Benefits
- 1.9 Commercial Applications
- 1.10 Prior Art
- 1.11 Frequently Updated Research
- 1.12 Questions about NFC Technology
- 1.13 Original Abstract Submitted
Near Field Communication NFC Apparatus and Open-Loop Control Method
Organization Name
Inventor(s)
Xuesong Chen of Singapore (SG)
Thengtee Yeo of Singapore (SG)
Near Field Communication NFC Apparatus and Open-Loop Control Method - A simplified explanation of the abstract
This abstract first appeared for US patent application 18418693 titled 'Near Field Communication NFC Apparatus and Open-Loop Control Method
Simplified Explanation
The patent application describes a near-field communication (NFC) apparatus that extracts a clock signal from an NFC card reader, tracks its frequency, and generates a carrier signal for communication.
- Clock extractor recovers clock signal from NFC card reader's carrier signal.
- Digital phase-locked loop tracks frequency of clock signal.
- Digital baseband chip modulates load based on clock signal to generate carrier signal.
- Controller detects frequency or phase of clock signal and controls phase-locked loop accordingly.
Key Features and Innovation
- Clock recovery and frequency tracking for NFC communication.
- Load modulation based on clock signal for carrier signal generation.
- Adaptive control of phase-locked loop for optimal performance.
Potential Applications
- Contactless payment systems.
- Access control systems.
- Data transfer between devices.
Problems Solved
- Ensures accurate clock synchronization in NFC communication.
- Improves signal quality and reliability.
- Enhances overall performance of NFC devices.
Benefits
- Secure and reliable communication.
- Efficient data transfer.
- Enhanced user experience with NFC technology.
Commercial Applications
Clock Recovery and Frequency Tracking in NFC Technology
This technology can be utilized in various industries such as:
- Retail for contactless payments.
- Transportation for ticketing systems.
- Healthcare for secure data transfer.
Prior Art
There are existing patents related to clock recovery and frequency tracking in NFC technology, such as [insert relevant patent numbers or names if known].
Frequently Updated Research
Research on improving clock recovery algorithms and frequency tracking techniques in NFC technology is ongoing to enhance performance and reliability.
Questions about NFC Technology
How does clock recovery impact the reliability of NFC communication?
Clock recovery ensures accurate synchronization between devices, leading to reliable data transfer and communication.
What are the potential security implications of load modulation in NFC technology?
Load modulation can enhance security by enabling secure communication between devices through controlled modulation of the carrier signal.
Original Abstract Submitted
A near-field communication (NFC) apparatus includes a clock extractor configured to perform clock recovery based on a first carrier signal sent by an NFC card reader to obtain a field clock signal; a digital phase-locked loop configured to perform frequency tracking on the field clock signal to output a first clock signal; a digital baseband chip configured to perform load modulation based on the first clock signal to generate a second carrier signal; and a controller configured to detect a frequency or a phase of the field clock signal, and selectively perform open-loop control on the digital phase-locked loop based on a detection result.
