The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2013
Filed:
Apr. 15, 2010
John C. Peiffer, New Port Richey, FL (US);
Michael A. Hicks, Clearwater, FL (US);
David H. Wright, Safety Harbor, FL (US);
Paul M. Mears, Safety Harbor, FL (US);
Venugopal Srinivasan, Palm Harbor, FL (US);
Daozheng LU, Dunedin, FL (US);
Paul C. Kempter, Palm Harbor, FL (US);
John C. Peiffer, New Port Richey, FL (US);
Michael A. Hicks, Clearwater, FL (US);
David H. Wright, Safety Harbor, FL (US);
Paul M. Mears, Safety Harbor, FL (US);
Venugopal Srinivasan, Palm Harbor, FL (US);
Daozheng Lu, Dunedin, FL (US);
Paul C. Kempter, Palm Harbor, FL (US);
The Nielsen Company (US), LLC, Schaumburg, IL (US);
Abstract
Methods and apparatus for identifying a digital audio signal are described. An example apparatus for identifying a digital audio signal includes an input to receive the digital audio signal, which includes data from a broadcast or a stored digital program signal. The example apparatus also includes a detector to receive the digital audio signal from the input and determine whether the received digital audio signal is uncompressed as received at the input; a decoder to receive the digital audio signal from the detector when the digital audio signal is compressed as received at the input and identify any first program-identifying code in an auxiliary field of the compressed digital audio signal; and a code reader to receive the digital audio signal from the detector when the digital audio signal is uncompressed as received at the input and receive the digital audio signal from a decompressor when the digital audio signal is compressed as received at the input. Additionally, the code reader is to identify any second program-identifying code in a decompressed or uncompressed portion of the digital audio signal when the first program-identifying code is not identified in the auxiliary field or when the digital audio signal is uncompressed as received at the input.