H04B - CPC Classification
Classification description:
Sub-classes:
- H04B1/00 » Details of transmission systems, not covered by a single one of groups to ; Details of transmission systems not characterised by the medium used for transmission 270
- H04B10/00 » Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication 244
- H04B11/00 » Transmission systems employing sonic, ultrasonic or infrasonic waves 965
- H04B13/00 » Transmission systems characterised by the medium used for transmission, not provided for in groups to 109
- H04B14/00 » Transmission systems not characterised by the medium used for transmission 10
- H04B15/00 » Suppression or limitation of noise or interference 1,3K
- H04B17/00 » Monitoring; Testing 455
- H04B2201/00 » Indexing scheme relating to details of transmission systems not covered by a single group of to 7
- H04B2203/00 » Indexing scheme relating to line transmission systems 6
- H04B2210/00 » Indexing scheme relating to optical transmission systems 7
- H04B2215/00 » Reducing interference at the transmission system level 19
- H04B3/00 » Line transmission systems 135
- H04B5/00 » Near-field transmission systems, e.g. inductive loop type 632
- H04B7/00 » Radio transmission systems, i.e. using radiation field 249
