US 6,577,716 (titled Internet radio system with selective replacement capability) has a first claim:
A method for replacing a portion of the content of a radio broadcast that is to be distributed over the Internet, the method comprising: receiving the content of a radio broadcast that has been transmitted by a radio station; identifying, following the step of receiving, a marker associated with the content that is indicative of a change in the type of the content of the radio broadcast from a first content type to a second content type; replacing, following the step of identifying and when the second content type is of a type that is applicable to listeners located within the geographical range of the radio broadcast but unlikely to be applicable to individuals located outside of the geographical range of the radio broadcast, a portion of the content of the received radio broadcast that is of the second content type with content of a selected content type that is applicable to individuals located outside the geographical range of the radio broadcast, said marker being used to determine a point in time at which the portion of the content of the second content type is to be replaced with content of the selected content type, wherein said step of replacing produces a revised content; and providing, following the step of replacing, the revised content of the radio broadcast for distribution over the Internet.
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