Patent ID: 8676114

Claim:
A method of generating a digital radio broadcast signal formatted to facilitate specifying content of interest using a digital radio broadcast receiver, the method comprising: arranging first audio content and second audio content for broadcast via a digital radio broadcast signal; structuring first program data associated with the first audio content and second program data associated with the second audio content, the first program data comprising a first Unique File Identifier (UFID) frame comprising a first type code specifying a type of a first item associated with the first audio content, a first ID code identifying the first item, and a first Uniform Resource Locator (URL) address for obtaining information about the first item, the first type code being associated with one of an audio product, a merchandise product, and a subscription service, the second program data comprising a second Unique File Identifier (UFID) frame comprising a second type code specifying a type of a second item associated with the second audio content, a second ID code identifying the second item, and a second Uniform Resource Locator (URL) address for obtaining information about the second item; and generating a digital radio broadcast signal comprising the first and second audio content and the first and second program data for transmission via digital radio broadcast.