Media recognition using a single light detector

US7214955B2 · kind B2 · utility

Assignee

• Avago Technologies Imaging IP (Singapore) Pte. Ltd. · SG

Inventors

• Jiin Cheang Cheong · Bayan Lepas, MY
• Boon Keat Tan · Bukit Mertajam, MY
• Saiful Saidan · Loveland, US
• Sze Yin Lee · Bukit Mertajam, MY

Key dates

• Filing date: Apr 8, 2005
• Grant date: May 8, 2007
• Expiry date: Oct 25, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41J11/009
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Media type is detected. A light beam is produced. The intensity of a specular reflectance component of the light beam is detected. The specular reflectance component results from the light beam being reflected off media. An indication of detected intensity of the specular reflectance component is compared to a mapping to determine media type of the media. The mapping maps detected intensity of the specular reflectance component to media type. The mapping uses only the detected intensity of the specular reflectance component, and no other components of light, to map detected intensity of the specular reflectance component to media type.