Digital set-top terminal configured to receive analog signals

Details Digital set-top terminal configured to receive analog signals Digital set-top terminal configured to receive analog signals

H - Electricity

04

N

H04N 5/46 (2006.01) H04N 5/44 (2006.01) H04N 5/445 (2006.01)

Patent

CA 2586339

Systems and methods are disclosed in which analog television channels can be passed through digital set-top terminals. In some embodiments, among others, a switch and a splitter are included in a digital set-top terminal. The splitter is configured to receive a broadcast signal, and direct the broadcast signal to a first path and a second path. The first path has digital tuning circuitry, which processes the broadcast signal to produce an output signal for display on a television. The switch is located in the second path. The switch receives the broadcast signal from the splitter and the output signal from the digital tuning circuitry. The switch then selects between the broadcast signal and the output signal from the digital tuning circuitry. The selected signal is then output to a television.

L'invention concerne des systèmes et des procédés permettant de recevoir des chaînes de télévision analogiques par l'intermédiaire de boîtiers décodeurs numériques. Dans certaines formes de réalisation, un commutateur et un diviseur sont inclus dans le boîtier décodeur. Le diviseur est conçu pour recevoir un signal diffusé et diriger celui-ci vers un premier et un second chemin. Le premier chemin comporte un circuit de syntonisation numérique qui traite le signal afin de produire un signal de sortie destiné à être affiché par une télévision. Le commutateur, qui se situe dans le second chemin, reçoit le signal diffusé provenant du diviseur et le signal de sortie provenant du circuit de syntonisation numérique. Le commutateur effectue ensuite une sélection entre le signal diffusé et le signal de sortie, puis le signal sélectionné est affiché par une télévision.

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