DEVICE FOR CHANGING CHANNELS IN A DIGITAL TELEVISION RECEPTION SYSTEM

摘要

Device for changing channels in a digital TV reception system with an image display unit in the form of at least one TV set (14) or equivalent for the reception of several TV channels over an incoming communication link (18) and display of the desired TV channel on the screen of the image display unit. The communication link (18) is connected to a memory unit (10) that has two-way coupling with the channel selector of the image display unit. Further, the memory unit (10) is arranged to continuously store in the respective shift register a short sequence of information, corresponding to at least one complete digital image, from several TV channels to which access is desired. In this way the selected TV channel is directly accessible for display on the screen through control by means of a control unit (16) through the channel selector (12) and the memory unit (10).