Improved teletext receiver.

摘要

There is described an improved receiver for an information transmission system, represented by a plurality of pages, each one selectable by the user among all those which are receivable, some of said pages being of the so called revolving type, the receiver comprising a memory (3) for one or more of said pages, command means (1) providing for a plurality of keys, which may be pressed by the user in order to produce command signals, control means (2), coupled to said command means in order to produce suitable active signals as a consequence of said command signals, and a decoding circuit (4) coupled to said control means, capable of receiving, selecting, processing and displaying the information pages when said active signals are received, wherein one of said command signals is the so called "stop" (or Halt) signal, which is used to stop the automatic changing of said revolving pages; the main characteristics of the receiver is represented by the fact that said control means provide, when said "stop" signal coming from said command means is received, for verifying if the page which is actually received is a revolving page, and in the affirmative case, for sending out active signals to said decoder and said page memory, so that, beside freezing the displaying of the page which is actually received, the pages following the page which is actually received and pertaining to the same group of revolving pages are memorized in said memory.