Descriptions for H03K and notes/indexes are displayed on this screen.
| H03K
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PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D 3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M)[4]
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Note(s)
This subclass covers :[6]methods, circuits, devices or apparatus using active elements operating in a discontinuous or switching manner for generating, counting, amplifying, shaping, modulating, demodulating or otherwise manipulating signals;electronic switching not involving contact-making and breaking;logic circuits handling electric pulses. In this subclass, the following expression is used with the meaning indicated:"active element" exercises control over the conversion of input energy into an oscillation or a discontinuous flow of energy. In this subclass, where the claims of a patent document are not limited to a specific circuit element, the document is classified at least according to the elements used in the described embodiment.
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Subclass indexes
GENERATING PULSES | Circuits; with finite slope or stepped portions | 3/00; 4/00 | PRODUCING PULSES FROM SINEWAVES | 12/00 | MANIPULATING PULSES OTHER THAN WHEN COUNTING | Modulating; demodulating; transfer | 7/00; 9/00; 11/00 | Other | 5/00, 6/00 | PULSE COUNTERS, FREQUENCY DIVIDERS | With counting chains; with integration; with a closed loop; with multistable elements | 23/00; 25/00; 27/00; 29/00 | Details | 21/00 | SPECIAL APPLICATIONS | Electronic switching; logic circuits | 17/00; 19/00 |
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