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:
Jul. 05, 2011
Filed:
Jan. 31, 2008
Raghuram Krishnapuram, Bangalore, IN;
Nandita J. Mahajan, New Delhi, IN;
L. Venkat Subramaniam, Gurgaon, IN;
Vivek Tyagi, New Delhi, IN;
Tanveer A. Faruquie, New Delhi, IN;
Raghuram Krishnapuram, Bangalore, IN;
Nandita J. Mahajan, New Delhi, IN;
L. Venkat Subramaniam, Gurgaon, IN;
Vivek Tyagi, New Delhi, IN;
Tanveer A. Faruquie, New Delhi, IN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Techniques for protecting information in an audio file are provided. The techniques include obtaining an audio file, detecting information bearing one or more segments in a speech signal, wherein the information comprises information sought for protection, encrypting the information sought for protection by scrambling the one or more segments using a scrambling filter, and selectively decrypting an amount of the encrypted information, wherein the amount of the encrypted information to be decrypted depends on user access privilege, and wherein selectively decrypting the amount of the encrypted information protects said amount of the encrypted information. Techniques are also provided for protecting information in an audio file.