ON-SCREEN SIGNAL PROCESSING APPARATUS AND BROADCAST RECEIVER

摘要

PROBLEM TO BE SOLVED: To achieve intricate OSD display without using large-scale memories like in a bit map system.

SOLUTION: The on-screen signal processing apparatus comprises a first display memory 14a for storing binary image data, a second display memory 14b for storing decoration data for decorating the binary image data stored in the first display memory 14a in a unit of a fixed plurality of pixels, and a first color designation table 22 for storing data concerning a character color and a background color for decorating the binary image data stored in the first display memory 14a. A first converter 33 reads the binary image data of the first display memory 14a and the decoration data of the second display memory 14b every unit of the fixed plurality of pixels and searches the first color designation table 22 based on the character color and the background color designated in the decoration data, and further performs color-conversion to the binary image data of the first display memory 14a.

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