H04L - CPC Classification
Classification description:
Sub-classes:
- H04L1/00 » Arrangements for detecting or preventing errors in the information received 1,8K
- H04L12/00 » Data switching networks 298
- H04L13/00 » Details of the apparatus or circuits covered by groups or 2
- H04L15/00 » Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code 8
- H04L17/00 » Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code 1
- H04L19/00 » Apparatus or local circuits for step-by-step systems 0
- H04L21/00 » Apparatus or local circuits for mosaic printer telegraph systems 9
- H04L2201/00 » Algorithms used for the adjustment of time-domain equalizers 10
- H04L2203/00 » Characteristics of phase shift key signals 9
- H04L2209/00 » {Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication } 7
- H04L2212/00 » Encapsulation of packets 1,1K
- H04L23/00 » Apparatus or local circuits for systems other than those covered by groups to 19
- H04L2463/00 » Additional details relating to network architectures or network communication protocols for network security covered by 1
- H04L25/00 » Baseband systems 192
- H04L27/00 » Modulated-carrier systems 411
- H04L29/00 » Arrangements, apparatus, circuits or systems, not covered by a single one of groups to {contains provisionally no documents} 186
- H04L41/00 » {Arrangements for maintenance or administration or management of packet switching networks} 2,0K
- H04L43/00 » {Arrangements for monitoring or testing packet switching networks } 2,4K
- H04L45/00 » {Routing or path finding of packets in data switching networks } 4,7K
- H04L47/00 » {Traffic regulation in packet switching networks } 124
- H04L49/00 » {Packet switching elements } 417
- H04L5/00 » Arrangements affording multiple use of the transmission path 1,4K
- H04L51/00 » {Arrangements for user-to-user messaging in packet-switching networks, e.g. e-mail or instant messages} 2,1K
- H04L61/00 » {Network arrangements or network protocols for addressing or naming} 426
- H04L63/00 » {Network architectures or network communication protocols for network security } 660
- H04L65/00 » {Network arrangements or protocols for real-time communications } 452
- H04L67/00 » {Network-specific arrangements or communication protocols supporting networked applications } 641
- H04L69/00 » {Application independent communication protocol aspects or techniques in packet data networks } 82
- H04L7/00 » Arrangements for synchronising receiver with transmitter 231
- H04L9/00 » arrangements for secret or secure communication 639
