Circuit for generating center pulse width modulated waveforms and non-impact printer using same
US4750010A · kind A · utility
59Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1987 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Jan 2, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4056
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit for generating a set of center pulse-width modulated waveforms comprises a counter having a time changing count, and comparators which compare the count with respective preset counts. The preset counts to the comparators being set so that the set of waveforms created is center pulse-width modulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.