Patent ID: 6400408
Filing Date: 2002-06-04
Classification: H04N

Abstract:
A television signal processing device for autonomously determining television program information, comprising:receiving means for receiving a television signal in a receiving channel receivable by the receiving means, and for receiving an information signal comprising data blocks containing data block information, said information signal being receivable recurrently in blanking intervals of the television signal; an information detection stage for detecting data block information identified by a given data block address in each receiving cycle of the received information signal; television program information determining means for determining television program information contained in data block information detected by the information detection stage, and for presetting at least one further data block address for the information detection stage enabling the information detection stage to determine further television program information contained in the information signal; and a switching stage for autonomously switching over the receiving means for the reception of at least one further television signal comprising an information signal in blanking intervals via at least one further receiving channel so as to enable further television program information to be determined autonomously, characterized in that said television signal processing device further comprises: a data block address memory for storing at least one item of television signal identification information, for identifying a received television signal, or receiving channel identification information in correlation with at least one data block address for identifying a data block of an information signal contained in a television signal received in a receiving channel, wherein each time television program information is determined successfully in detected data block information, the television program information determining means autonomously stores the last preset data block address in the data block address memory in correlation with television signal identification information, which identifies the received television signal, or receiving channel identification information, andwherein, after switching over of the receiving means by the switching stage, said television program information determining means applies a data block address stored in the data block address memory in correlation with television signal identification information, which identifies the received television signal, or receiving channel identification information, autonomously to the information detection stage in order to detect data block information identified by the data block address.