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Symbol IPC-Stellen auswählen Titel
A
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HUMAN NECESSITIES
B
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PERFORMING OPERATIONSTRANSPORTING
C
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CHEMISTRYMETALLURGY
D
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TEXTILESPAPER
E
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FIXED CONSTRUCTIONS
F
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MECHANICAL ENGINEERINGLIGHTINGHEATINGWEAPONSBLASTING
G
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PHYSICS
H
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ELECTRICITY
H01
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BASIC ELECTRIC ELEMENTS
H02
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GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H03
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BASIC ELECTRONIC CIRCUITRY
H04
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ELECTRIC COMMUNICATION TECHNIQUE
H04B
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TRANSMISSION [4]
H04H
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BROADCAST COMMUNICATION (multiplex communication H04J; pictorial communication aspects of broadcast systems H04N)
H04J
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MULTIPLEX COMMUNICATION (peculiar to transmission of digital information H04L 5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N 7/08; in exchanges H04Q 11/00)
H04K
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SECRET COMMUNICATIONJAMMING OF COMMUNICATION
H04L
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TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) [4]
H04L 1/00
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Arrangements for detecting or preventing errors in the information received [1, 2006.01]
H04L 5/00
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Arrangements affording multiple use of the transmission path [1, 2006.01]
H04L 7/00
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Arrangements for synchronising receiver with transmitter [1, 2006.01]
H04L 9/00
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Arrangements for secret or secure communication [1, 2006.01]
H04L 12/00
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Data switching networks (interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units G06F 13/00) [5, 2006.01]
H04L 12/02
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Details [5, 2006.01]
H04L 12/04
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. . Switchboards [5, 2006.01]
H04L 12/06
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. . Answer-back mechanisms or circuits [5, 2006.01]
H04L 12/08
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. . Allotting numbers to messagesCounting characters, words or messages [5, 2006.01]
H04L 12/10
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. . Current supply arrangements [5, 2006.01]
H04L 12/12
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. . Arrangements for remote connection or disconnection of substations or of equipment thereof [5, 2006.01]
H04L 12/14
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. . Charging arrangements [5, 2006.01]
H04L 12/16
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. . Arrangements for providing special services to substations [5, 2006.01]
H04L 12/18
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. . . for broadcast or conference [5, 2006.01]
H04L 12/20
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. . . for converting transmission speed from the inherent speed of a substation to the inherent speed of other substations [5, 2006.01]
H04L 12/22
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. . Arrangements for preventing the taking of data from a data transmission channel without authorisation (means for verifying the identity or the authority of a user of a secure or secret communication system H04L 9/32) [5, 2006.01]
H04L 12/24
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. . Arrangements for maintenance or administration [5, 2006.01]
H04L 12/26
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. . Monitoring arrangementsTesting arrangements [5, 2006.01]
H04L 12/28
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characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] (wireless communication networks H04W) [5, 6, 2006.01]
H04L 12/40
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. . Bus networks [5, 6, 2006.01]
H04L 12/403
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. . . with centralised control, e.g. polling [6, 2006.01]
H04L 12/407
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. . . with decentralised control [6, 2006.01]
H04L 12/413
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. . . . with random access, e.g. carrier-sense multiple-access with collision detection (CSMA-CD) [6, 2006.01]
H04L 12/417
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. . . . with deterministic access, e.g. token passing [6, 2006.01]
H04L 12/42
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. . Loop networks [5, 6, 2006.01]
H04L 12/423
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. . . with centralised control, e.g. polling [6, 2006.01]
H04L 12/427
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. . . with decentralised control [6, 2006.01]
H04L 12/43
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. . . . with synchronous transmission, e.g. time division multiplex (TDM), slotted rings [6, 2006.01]
H04L 12/433
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. . . . with asynchronous transmission, e.g. token ring, register insertion [6, 2006.01]
H04L 12/437
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. . . Ring fault isolation or reconfiguration [6, 2006.01]
H04L 12/44
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. . Star or tree networks [5, 6, 2006.01]
H04L 12/46
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. . Interconnection of networks [5, 6, 2006.01]
H04L 12/50
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Circuit switching systems, i.e. systems in which the path is physically permanent during the communication [5, 6, 2006.01]
H04L 12/52
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. . using time division techniques (in digital transmission systems H04L 5/22) [5, 6, 2006.01]
H04L 12/54
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Store-and-forward switching systems (packet switching systems H04L 12/70) [5, 6, 2006.01, 2013.01]
H04L 12/58
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. . Message switching systems [5, 6, 2006.01]
H04L 12/60
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. . . Manual relay systems, e.g. push-button switching [5, 6, 2006.01]
H04L 12/62
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. . . . with perforated tape storage [5, 6, 2006.01]
H04L 12/64
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Hybrid switching systems [5, 6, 2006.01]
H04L 12/66
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Arrangements for connecting between networks having differing types of switching systems, e.g. gateways [5, 6, 2006.01]
H04L 12/70
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Packet switching systems [2013.01]
H04L 12/701
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. . Routing or path finding [2013.01]
H04L 12/703
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. . . Route fault prevention or recovery, e.g. rerouting, route redundancy, virtual router redundancy protocol [VRRP] or hot standby router protocol [HSRP] [2013.01]
H04L 12/705
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. . . . Loop or livelock prevention, e.g. time to live [TTL] or spanning tree [2013.01]
H04L 12/707
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. . . . using path redundancy [2013.01]
H04L 12/709
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. . . . . using M+N parallel active paths [2013.01]
H04L 12/711
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. . . . . using M:N active or standby paths [2013.01]
H04L 12/713
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. . . . using node redundancy, e.g. VRRP [2013.01]
H04L 12/715
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. . . Hierarchical routing, e.g. clustered networks or inter-domain routing [2013.01]
H04L 12/717
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. . . Centralised routing [2013.01]
H04L 12/721
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. . . Routing procedures, e.g. shortest path routing, source routing, link state routing or distance vector routing [2013.01]
H04L 12/723
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. . . . Label or tag based routing, e.g. multi-protocol label switching [MPLS] or generalised multi-protocol label switching [GMPLS] [2013.01]
H04L 12/725
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. . . . Selecting a path with suitable quality of service [QoS] [2013.01]
H04L 12/727
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. . . . . Selecting a path with minimum delay [2013.01]
H04L 12/729
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. . . . . Selecting a path with suitable bandwidth or throughput [2013.01]
H04L 12/733
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. . . . Selecting a path with minimum length or minimum hop count [2013.01]
H04L 12/735
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. . . . Disjoint routing, e.g. path disjoint or node disjoint [2013.01]
H04L 12/741
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. . . Header address processing for routing, e.g. table lookup [2013.01]
H04L 12/743
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. . . . using hashing techniques [2013.01]
H04L 12/745
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. . . . using longest matching prefix [2013.01]
H04L 12/747
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. . . . Address caching [2013.01]
H04L 12/749
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. . . . Address processing over inter-domain or inter-network, e.g. mapping different addresses between IPv6 and IPv4 networks for routing [2013.01]
H04L 12/751
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. . . Topology update or discovery [2013.01]
H04L 12/753
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. . . . Routing tree discovery, e.g. converting from mesh topology to tree topology [2013.01]
H04L 12/755
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. . . . Topology update consistency, e.g. link state advertisement [LSA], time stamping or sequence numbers in the updates [2013.01]
H04L 12/757
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. . . . Synchronised activation of routing updates, e.g. delaying or holding routing table updates [2013.01]
H04L 12/759
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. . . . Dynamic adaptation of update interval, e.g. event-driven updates [2013.01]
H04L 12/761
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. . . Broadcast or multicast routing [2013.01]
H04L 12/763
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. . . Shortcut routing, e.g. next hop resolution protocol [NHRP] [2013.01]
H04L 12/771
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. . . Router architecture [2013.01]
H04L 12/773
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. . . . for supporting layer 3 switching, e.g. IP switching, cell switch relay [CSR] or tag switching [2013.01]
H04L 12/775
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. . . . multiple routing entities, e.g. multiple software or hardware instances [2013.01]
H04L 12/781
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. . . Multiprotocol routing, e.g. for protocol adaptation between IPv4 and IPv6 or dual stack [2013.01]
H04L 12/801
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. . Flow control or congestion control [2013.01]
H04L 12/803
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. . . Load balancing, e.g. traffic distribution over multiple links [2013.01]
H04L 12/805
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. . . Determination of the optimum packet size, e.g. maximum transmission unit [MTU] [2013.01]
H04L 12/807
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. . . Calculation or update of the congestion window [2013.01]
H04L 12/811
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. . . Bitrate adaptation in active flows [2013.01]
H04L 12/813
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. . . . Policy-based control, e.g. policing [2013.01]
H04L 12/815
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. . . . Shaping [2013.01]
H04L 12/819
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. . . . Leaky bucket [2013.01]
H04L 12/823
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. . . . Packet dropping [2013.01]
H04L 12/825
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. . . . Adaptive control, at the source or intermediate nodes, upon congestion feedback, e.g. X-on X-off [2013.01]
H04L 12/827
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. . . . . sent by intermediate network nodes [2013.01]
H04L 12/829
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. . . . . sent by the destination endpoint [2013.01]
H04L 12/833
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. . . . Marking packets or altering packet priority upon congestion or for congestion prevention [2013.01]
H04L 12/835
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. . . . using buffer capacity information at the endpoints or transit nodes [2013.01]
H04L 12/841
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. . . Flow control actions using time consideration, e.g. round trip time [RTT] [2013.01]
H04L 12/851
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. . . Traffic type related actions, e.g. QoS or priority [2013.01]
H04L 12/853
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. . . . for real time traffic [2013.01]
H04L 12/855
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. . . . for signalling traffic, e.g. operations, administration and maintenance [OAM] or acknowledge [ACK] packets [2013.01]
H04L 12/857
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. . . . Mapping QoS constraints between layers or between different networks [2013.01]
H04L 12/859
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. . . . Flow control actions based on the nature of the application, e.g. controlling web browsing or e-mail traffic [2013.01]
H04L 12/861
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. . . Packet buffering or queuing arrangementsQueue scheduling [2013.01]
H04L 12/863
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. . . . Queue scheduling, e.g. Round Robin [2013.01]
H04L 12/865
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. . . . . Priority-based scheduling [2013.01]
H04L 12/867
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. . . . . Fair share scheduling [2013.01]
H04L 12/869
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. . . . . Multilevel schedulingHierarchical scheduling [2013.01]
H04L 12/873
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. . . . . Bandwidth-aware scheduling [2013.01]
H04L 12/875
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. . . . . Delay-aware scheduling [2013.01]
H04L 12/877
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. . . . . Distribution of residual bandwidth, e.g. distribution of unused bandwidth to best effort traffic [BET] [2013.01]
H04L 12/879
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. . . . Single buffer operations, e.g. buffer pointers or buffer descriptors [2013.01]
H04L 12/883
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. . . . Packet storage using a linked list of buffers [2013.01]
H04L 12/885
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. . . . Jitter compensation buffering [2013.01]
H04L 12/891
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. . . Flow control of aggregated links or flows [2013.01]
H04L 12/893
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. . . Connection splitting, e.g. IP splitting [2013.01]
H04L 12/901
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. . Ingress point selection by the source endpoint, e.g. Internet service provider [ISP] or point of presence [POP] selection [2013.01]
H04L 12/903
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. . . Selection among a plurality of different networks [2013.01]
H04L 12/905
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. . . . Dynamic network selection or re-selection, e.g. after degradation of quality [2013.01]
H04L 12/911
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. . Network admission control and resource allocation, e.g. bandwidth allocation or in-call renegotiation [2013.01]
H04L 12/913
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. . . Reservation actions involving intermediate nodes, e.g. resource reservation protocol [RSVP] [2013.01]
H04L 12/915
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. . . Reservation actions involving several network domains, e.g. multilateral agreements or mapping of resources [2013.01]
H04L 12/917
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. . . Dynamic resource allocation, e.g. in-call renegotiation requested by the user or upon changing network conditions requested by the network [2013.01]
H04L 12/919
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. . . . initiated by the source endpoint [2013.01]
H04L 12/923
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. . . . initiated by the network [2013.01]
H04L 12/925
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. . . Reservation of resources at the destination endpoint [2013.01]
H04L 12/927
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. . . Allocation of resources based on type of traffic, QoS or priority [2013.01]
H04L 12/931
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. . Switch fabric architecture [2013.01]
H04L 12/933
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. . . Switch core, e.g. crossbar, shared memory or shared medium [2013.01]
H04L 12/935
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. . . Switch interfaces, e.g. port details [2013.01]
H04L 12/937
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. . . Switch control, e.g. arbitration [2013.01]
H04L 12/939
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. . . Provisions for redundant switching, e.g. using parallel switching planes [2013.01]
H04L 12/943
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. . . . Transferring a complete packet or cell from each plane [2013.01]
H04L 12/945
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. . . . Transferring a part of the packet or cell from each plane, e.g. bit slice [2013.01]
H04L 12/947
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. . . Address processing within a device, e.g. using internal ID or tags for routing within a switch [2013.01]
H04L 12/951
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. . Assembling and disassembling of packets, e.g. segmentation and reassembly [SAR] in asynchronous transfer mode [ATM] [2013.01]
H04L 12/953
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. . . Packet sequencing arrangements for supporting message reassembly, e.g. packet sequence number [2013.01]
H04L 12/955
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. . . Padding or de-padding, e.g. inserting or removing dummy data in or from unused packet segments [2013.01]
H04L 13/00
Hierarchie anzeigen
Details of the apparatus or circuits covered by groups H04L 15/00 or H04L 17/00 [1, 2006.01]
H04L 15/00
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Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code (teaching apparatus therefor G09B; telegraph tapping keys H01H 21/86) [1, 2006.01]
H04L 17/00
Hierarchie anzeigen
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, 2006.01]
H04L 19/00
Hierarchie anzeigen
Apparatus or local circuits for step-by-step systems [1, 2006.01]
H04L 21/00
Hierarchie anzeigen
Apparatus or local circuits for mosaic printer telegraph systems [1, 2006.01]
H04L 23/00
Hierarchie anzeigen
Apparatus or local circuits for telegraphic systems other than those covered by groups H04L 15/00-H04L 21/00 [1, 2006.01]
H04L 25/00
Hierarchie anzeigen
Baseband systems [1, 2006.01]
H04L 27/00
Hierarchie anzeigen
Modulated-carrier systems [1, 2006.01]
H04L 29/00
Hierarchie anzeigen
Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L 1/00-H04L 27/00 [5, 2006.01]
H04M
Hierarchie anzeigen
TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
H04N
Hierarchie anzeigen
PICTORIAL COMMUNICATION, e.g. TELEVISION [4]
H04Q
Hierarchie anzeigen
SELECTING (switches, relays, selectors H01H;  wireless communication networks H04W) [1, 2009.01]
H04R
Hierarchie anzeigen
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERSDEAF-AID SETSPUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) [6]
H04S
Hierarchie anzeigen
STEREOPHONIC SYSTEMS [3]
H04W
Hierarchie anzeigen
WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M 1/72) [2009.01]
H05
Hierarchie anzeigen
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H99
Hierarchie anzeigen
SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]

Zu vergleichende IPC-Stelle: Es wurden im Verzeichnis noch keine IPC-Stellen für die Vergleichsansicht vorgemerkt. [Version , Sprache ]