Video signal processing system

US6714256B2 · kind B2 · utility

Assignee

• HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH · DE

Inventors

• Bernd Broghammer · Tennenbronn, DE
• Karl Buehler · Bad Dürrheim, DE
• Guenther Huber · Bad Dürrheim, DE
• Michael Maier · Villingen-Schwenningen, DE
• Gerd Mauthe · Eschborn, DE
• Thomas Sagcob · Donaueschingen, DE
• Juergen Vogel · Brigachtal, DE

Key dates

• Filing date: Dec 26, 2000
• Grant date: Mar 30, 2004
• Expiry date: Sep 14, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G09G2340/10
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A video signal processing system for processing a video data VIN and graphic data D&mgr;P includes a filter unit, which receives the video data VIN. The filter unit filters the video data VIN to convert the video data VIN into video pictures formated with a different number of columns and/or lines, and provides a filtered video signal indicative thereof. The filter unit buffers individual pixels and/or lines in a first memory device. A second memory device receives and stores the graphic data D&mgr;P and the filtered video signal and provides stored signals indicative thereof. A third memory device is connected to the second memory, and stores data received from the second memory device. A mixing unit receives and mixes the stored graphic data and the stored filtered video data to provide a video output signal VOUT.