Loading patent…
AssigneeiBiquity Digital Corporation
InventorsBrian William Kroeger, Jeffrey S. Baird
Estimating the term…
A method for transmission of data in a digital audio broadcasting system includes the steps of providing a plurality of orthogonal frequency division multiplexed sub-carriers, with the sub-carriers including data sub-carriers and reference sub-carriers, and modulating the data sub-carriers with a digital signal representative of information to be transmitted. The reference sub-carriers are modulated with a sequence of timing bits, wherein the sequence of timing bits includes an unambiguous block synchronization word, and the number of bits comprising the block synchronization word is less than one half of the number of bits in said timing sequence. Then the orthogonal frequency division multiplexed sub-carriers are transmitted. Receivers that differentially detect the block synchronization word and use the block synchronization word to coherently detect the digital signal representative of information to be transmitted are also included.
A method for transmission of data for a digital audio broadcasting system comprising the steps of:
A method for receiving data in a digital audio broadcasting system, said data being modulated on a plurality of orthogonal frequency division multiplexed sub-carriers, said sub-carriers including data sub-carriers and reference sub-carriers, said data sub-carriers being modulated with a digital signal representative of information to be transmitted, and said reference sub-carriers being modulated with a sequence of timing bits, said sequence of timing bits including an unambiguous block synchronization word, wherein number of bits comprising said block synchronization word is less than one half of the number of bits in said timing sequence, said method comprising the steps of:
Dependencies are inferred from the claim text.