Projection device and projection system having the same
US10349021B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2015 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Aug 24, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection device and a projection system including the projection device are disclosed. The projection system includes an electronic device and the projection device. The electronic device provides a wireless signal. The projection device includes a wireless connection unit, a light sensor, a projection unit, an image control unit and a lamp base power interface. The wireless connection unit receives the wireless signal so as to provide an image control signal. The light sensor senses ambient light so as to provide a sensing control signal. The projection unit receives an image signal so as to project an image. The image control unit receives the image control signal and the sensing control signal so as to provide the image signal. The lamp base power interface electrically connects an external lamp stand power source to the projection device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.