http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108874164-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F3-0202 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F3-02 |
| filingDate | 2016-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108874164-B |
| titleOfInvention | Matrix keyboard inversion method scanning method |
| abstract | A matrix keyboard inversion method scanning method, X row lines and Y column lines of the matrix keyboard are connected with pull-up resistors, and sampling pulses control the X row lines and the Y column lines to be in a low level state alternately; the Y row line state when the X row lines are at a low level is latched to obtain a Y-bit row state signal, and the X row line state when the Y row lines are at a low level is latched to obtain an X-bit row state signal; the X-bit row state signal and the Y-bit column state signal jointly form an output N-bit keyboard state signal. The method realizes the reversal scanning of the matrix keyboard by adopting a sequential logic circuit, does not use microcontrollers such as a single chip microcomputer and an ARM, does not need running programs, and works reliably. |
| 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: 47.