Multiple display blink scheme for integrated circuit with application sense
US6292161A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1996 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Dec 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/147
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system operable with any number of different display truth table schemes. The system allows a user to select the truth table scheme and a driver circuit is used to drive either a single or pair of display elements. A binary application select detects a logic 0 if an application sense pin is left floating or is pulled low with a resistor. It detects a logic 1 if the application sense pin is pulled high with a resistor. The sense potential is such that all applications at the pin following reset, namely input or output with connected components will only detect a logic 1 when the pin is pulled high by a pull-up resistor. The output latched application is directed to a responsive circuit operable in a first condition when a logic 0 is detected, and a second condition when a logic 1 is detected. A binary select allows 2.sup.n different truth schemes to be selected where n is the number of pins used to select the application. When a first binary code is sensed, a first truth table is implemented. When a second binary code is existent, a second truth table is implemented and so on. The driver, sensor and responsive circuit are formed as an integrated circuit device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.