Pulse-modulation-signal generating device, light-source device, and optical scanning device
US8194113B2 · kind B2 · utility
1Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 2009 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | May 26, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/471
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A high-frequency clock generating circuit generates a plurality of high-frequency clock signals having different phases. A modulation-signal generating circuit generates a pulse modulation signal based on transition timing data including data pertaining to a turn-on timing at which a state of a light source is changed from a turn-off state to a turn-on state and a turn-off timing at which the state of the light source is changed from the turn-on state to the turn-off state by inputting any one of the high-frequency clock signals for a predetermined period including the turn-on timing and the turn-off timing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.