Importance

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Abstract

A method for program guide update includes: at an electronic device, acquiring program guide update data; comparing whether the program guide update data is the same as local program guide data; if not, comparing whether a quantity of program items contained in the program guide update data is the same as a quantity of program items contained in the local program guide data; recording primary item information and focus item information in a visual range of the program guide if the quantity of program items contained in the program guide update data is different from the quantity of program items contained in the local program guide data; updating the program guide according to the program guide update data; setting a visual range of an updated program guide according to the primary item information; and setting a focus item of the updated program guide according to the focus item information.

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First Claim