http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105680875-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03M11-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03M11-20 |
| filingDate | 2016-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105680875-B |
| titleOfInvention | Matrix keyboard operation identification and coding circuit |
| abstract | A kind of matrix keyboard operation identification and coding circuit, are made of matrix keyboard, the first shift register, the second shift register, state Code memory, encoder.The circuit is via the control for meeting scanning pulse, shift pulse, latch pulse that specific time sequence requires, the positioning of state operation will be maintained to single key stroke, combination key operation, keyboard, it is converted into the effective status code and invalid state code of same binary length, output and the corresponding effective key number of each effective status code either output invalid key number corresponding with all invalid state codes after encoder encodes；Different single key stroke, combination key operation, keyboard maintain state operation to be only embodied in not being same as above for conditional code；Button operation function is either adjusted if necessary to increase and decrease button operation function, keyboard scanning circuit structure need not be changed, only need to change encoder according to the conditional code after increase and decrease and the correspondence between key number.The invention circuit does not have to write and run program, reliable operation. |
| priorityDate | 2016-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.