SELECTING (switches, relays, selectors H01H; wireless communication networks H04W)

Introduced: September 1968

Description

H04Q covers switching and routing mechanisms in telecommunications networks, including exchange systems, selectors, and call distribution equipment. This subclass encompasses technologies for establishing connections between communication devices, such as automatic telephone exchanges, crossbar switches, and electronic switching systems. It includes both the hardware components and operational principles used to direct signals through communication networks to their intended destinations. Related switching technologies for data networks and specialized routing systems are classified elsewhere in H04L or other relevant communication subclasses.

Title

Titles differ between systems:

IPC: SELECTING

CPC: SELECTING (switches, relays, selectors H01H; wireless communication networks H04W)

Full Title

Full titles differ between systems:

IPC:

SELECTING

CPC:

SELECTING (switches, relays, selectors H01H; wireless communication networks H04W)

Of 8 combined children, 5 exist in both systems.

3 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

H04Q 1/00 Details of selecting apparatus or arrangements IPC+CPC Available in IPC and CPC
H04Q 11/00 Selecting arrangements for multiplex systems (multiplex systems H04J) +1 CPC IPC+CPC Available in IPC and CPC
H04Q 2201/00 Constructional details of selecting arrangements 2nd only +10 CPC CPC only CPC only
H04Q 2209/00 Arrangements in telecontrol or telemetry systems 2nd only +8 CPC CPC only CPC only
H04Q 2213/00 Indexing scheme relating to selecting arrangements in general and for multiplex systems 2nd only +445 CPC CPC only CPC only
H04Q 3/00 Selecting arrangements (H04Q5/00 - H04Q11/00 take precedence) +3 CPC IPC+CPC Available in IPC and CPC
H04Q 5/00 Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange IPC+CPC Available in IPC and CPC
H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom IPC+CPC Available in IPC and CPC