TRANSMISSION OF DIGITAL INFORMATION

HELECTRICITY H04Electric communication

H04LTRANSMISSION OF DIGITAL INFORMATION

H04L1/00Arrangements for detecting or preventing errors in the information received H04L12/00Data switching networks H04L13/00Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 H04L15/00Apparatus or local circuits for transmitting or receiving dot-and-dash codes H04L17/00Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements H04L19/00Apparatus or local circuits for step-by-step systems H04L21/00Apparatus or local circuits for mosaic printer telegraph systems H04L2201/00Algorithms used for the adjustment of time-domain equalizers H04L2203/00Characteristics of phase shift key signals H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00 H04L2212/00Encapsulation of packets H04L23/00Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00 H04L2463/00Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 H04L25/00Baseband systems H04L27/00Modulated-carrier systems H04L29/00Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00 contains provisionally no documents H04L41/00Arrangements for maintenance or administration or management of packet switching networks H04L43/00Arrangements for monitoring or testing packet switching networks H04L45/00Routing or path finding of packets in data switching networks H04L47/00Traffic regulation in packet switching networks H04L49/00Packet switching elements H04L5/00Arrangements affording multiple use of the transmission path H04L51/00Arrangements for user-to-user messaging in packet-switching networks H04L61/00Network arrangements or network protocols for addressing or naming H04L63/00Network architectures or network communication protocols for network security H04L65/00Network arrangements or protocols for real-time communications H04L67/00Network-specific arrangements or communication protocols supporting networked applications H04L69/00Application independent communication protocol aspects or techniques in packet data networks H04L7/00Arrangements for synchronising receiver with transmitter H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication