IPC Main Group
H03K 23/00 Pulse counters comprising counting chains; Frequency dividers comprising counting chains
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- PULSE TECHNIQUE
Related Keywords
COUNTING electronicallyFREQUENCY dividers for pulsesTRANSFERRING in electronic counters
10 direct subcodes
Child Classifications
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- H03K 23/4 Gating or clocking signals applied to all stages, i.e. synchronous counters
- H03K 23/58 Gating or clocking signals not applied to all stages, i.e. asynchronous counters
- H03K 23/64 with a base or radix other than a power of two
- H03K 23/74 using relays
- H03K 23/76 using magnetic cores or ferro-electric capacitors
- H03K 23/78 using opto-electronic devices
- H03K 23/8 using semiconductor devices having only two electrodes, e.g. tunnel diode, multi-layer diode
- H03K 23/82 using gas-filled tubes
- H03K 23/84 using thyristors or unijunction transistors
- H03K 23/86 reversible