CPC Main Group
H03M 11/00 Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys (keyboard switch arrangements, structural association of coders and keyboards H01H13/70, H03K17/94)
6 direct subcodes
Child Classifications
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- H03M 11/02 Details
- H03M 11/20 Dynamic coding, i.e. by key scanning (H03M11/26 takes precedence)
- H03M 11/22 Static coding (H03M11/26 takes precedence)
- H03M 11/26 using opto-electronic means