CPC Subgroup
H04L 25/40 Transmitting circuits; Receiving circuits
Full Title
Baseband systems > Synchronous or start-stop systems, e.g. for Baudot code > Transmitting circuits; Receiving circuits
5 direct subcodes
Child Classifications
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- H04L 25/42 using mechanical distributors
- H04L 25/44 using relay distributors
- H04L 25/45 using electronic distributors
- H04L 25/46 using tuning forks or vibrating reeds
- H04L 25/49 using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels