Hewlett-packard Development Company, L.p.

Ai-Qiang Yang

Fei Guo

Choon Hwee Yap

Ganlin Tang

Kuan Soon Oong

Tiang Kok Hun

Song-Bo Tang

A first zone and a second zone of a scan surface may be scanned by an image sensor. A lid may be coupled to the scan surface and have an open position and a closed position, the lid being to cover the first zone and the second zone when in the closed position. The position of a lid may be determined based on a comparison of a scan of the first zone and a scan of the second zone.

Lid position determinations based on scans of zones

A scanner is disclosed. The scanner includes a light source to emit light of a first color during a first turn-on period and emit light of a second color during a second turn-on period; a sensor to receive light from a scanning area, in response to the light of the first color directed to the scanning area, during a first sensing period, and receive light from the scanning area, in response to the light of the second color directed to the scanning area, during a second sensing period; and a controller to control the timing of the first turn-on period within the first sensing period and the second turn-on period within the second sensing period.

Scanner

Growing community of inventors

Singapore, Singapore

Ai-Qiang Yang