BS ISO/IEC 14443-4:2018 Cards and security devices for personal identification. Contactless proximity objects Transmission protocol

Data transmission
Identification methods
Proximity
Cards
Integrated circuit cards
Identity cards
Data transmission methods
Transmission control characters
Half duplex transmission

Link: BS ISO/IEC 14443-4:2018 Cards and security devices for personal identification. Contactless proximity objects Transmission protocol
Source: BSI Standards