Electronic lock digital keypad interface
US9911254B2 · kind B2 · utility
3Cited by
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17Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 14, 2016 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Nov 17, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B5/36
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A digital keypad interface includes a keypad having a plurality of keys, a lock status indicator, a first set of LEDs set around a periphery of the lock status indicator, an unlock status indicator, and a second set of LEDs set around a periphery of the unlock status indicator. A microprocessor is provided to sequentially light LEDs of the first set of LEDs during a locking sequence of inputs via the keypad and to sequentially light LEDs of the second set of LEDs during an unlocking sequence of inputs via the keypad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.