Personal computer capable of altering display luminance through key operation
US5315695A · kind A · utility
66Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1991 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Jun 24, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A battery operable personal computer comprises a display, a keyboard, a CPU, and a power supply circuit. The display panel displays various types of data at a luminance level according to a value of a luminance control signal. The keyboard serves to enter data instructing alteration of the luminance level of the display unit. The CPU instructs the luminance level of the display unit in accordance with data entered through the keyboard, The power supply circuit controls the value of the luminance control signal to be supplied to the display unit in such a way that the luminance level of the display becomes one specified by the CPU.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.