DIGITAL PICTURE STORAGE FOR TELETEXT DECODING

Abstract

The recent advance in digital memory technology makes it possible to introduce Field Memories in television receivers. This type of memory can store a complete picture which allows a number of new features to be added to a television receiver. Teletext and still Video reception are such features and are the focus of this thesis. This thesis describes a low cost digital field memory to be used in conjunction with the T.V receiver to facilitate Teletext reception. Considerations involved and the design of an experimental system are described. Tests to evaluate the performance of the experimental system are discussed and results presented. To familiarize the reader with the topic, some background information on Teletext and Television is also provided.