Light-emitting chip including plurality of light-emitting portions, and image-forming apparatus
US12242208B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2023 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Jul 13, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0409
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to an aspect of the present invention, a light-emitting chip includes: a plurality of light-emitting portions and a drive circuit. The drive circuit includes: first to fourth transferring unit, a first switch configured to switch between a first state in which start signals output by the fourth and third transferring units are output to the second and first transferring unit, respectively, and a second state in which the start signal output by the fourth and the third transferring units are output to the third and second transferring unit, respectively, and a second switch configured to switch between a third state in which the first and third transferring units and the first signal line are connected, and a fourth state in which the first and third transferring units and a second signal line are connected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.