| 摘要 |
<p>A television signals receiver is described, comprising: at least a tuner device for tuning upon choice one from the various television broadcasting stations receivable, a decoder for receiving and decoding the digital signals inserted, during the vertical flyback periods, in the received television signal, a central unit of control and digital processing, connected to the decoder also for analysing the received and decoded digital signals, command means for allowing the user to send operative commands to said central unit, a first non volatile digital memory for storing data, within which it is possible to store the tuning coordinates of a plurality of broadcasting stations, tying every broadcasting station with a @ tuning program number @ and a second non volatile digital memory for storing operative instructions for the said central unit, said receiver also comprising or being associated to: an image display device, a device for recording television programs, characterised in that said second memory contains instructions for causing said central unit to carry out a method of processing the said digital signals according to the following steps: a) upon verifying a determined event the said tuner is commanded to tune into a first receivable broadcasting station, b) the relative received television signal is examined and it is determined whether it contains digital signals inserted in the vertical flyback periods of the teletext type, c) in the affirmative case the digital signal of the teletext type is analysed and it is determined whether in said signal a special page is available, identified by a predetermined code, within which information is contained for identifying the pages which contain standardised information on television programs, d) in the affirmative case said pages are examined and the data contained in such is stored, e) the tuner is commanded to tune into a second receivable broadcasting station, and the previous steps b, c, d are repeated, therefore the tuner is commanded to tune into a third broadcasting station and so up till completion of all the receivable broadcasting stations available, or rather of all the broadcasting stations tied to a @ tuning program number @ , f) the information stored in this way, relative to the television programs provided by the broadcasting stations scanned according to the previous steps are analysed and classified, and g) the receiver is pre-set to display on said display device, every time that a determined first key or button comprised in said command means is pressed, in particular said key or button which also serves to recall the receiver from the @ stand-by @ condition, a list of television programs made available by said broadcasting stations, listing them in order beside the relative tuning program numbers, the co-ordinates of which have been stored as mentioned above. <IMAGE></p> |
