Importance

Loading Importance Indicators...

Abstract

A system is disclosed for eliminating error in teletext signals caused by the presence of noise accompanying the teletext signals. The system includes: (1) a teletext packet buffer which receives the teletext signal and transfers the teletext signals to a teletext decoder in the absence of noise accompanying the teletext signals; (2) a timing circuit which produces timing signals from television synchronous signals; (3) a control circuit which controls the teletext packet buffer in response to the timing signals; and (4) a noise detector which detects whether noise is present in the teletext signal and disables the teletext packet buffer to prevent the transfer of the teletext signal from the teletext packet buffer to the teletext decoder if the teletext signal was received in the presence of noise.

Loading the Abstract Image...

First Claim