Preserving audio data collection privacy in mobile devices



Techniques are disclosed for using the hardware and/or software of the mobile device to obscure speech in the audio data before a context determination is made by a context awareness application using the audio data. In particular, a subset of a continuous audio stream is captured such that speech (words, phrases and sentences) cannot be reliably reconstructed from the gathered audio. The subset is analyzed for audio characteristics, and a determination can be made regarding the ambient environment.




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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    US-2010063803-A1March 11, 2010GH Innovation, Inc.Spectrum Harmonic/Noise Sharpness Control

NO-Patent Citations (3)

    DANIEL P.W. ELLIS, ET AL.: "Minimal-Impact Audio-Based Personal Archives.", 《CARPE "04: PROCEEDINGS OF THE FIRST ACM WORKSHOP ON CONTINUOUS ARCHIVAL AND RETRIEVAL OF PERSONAL EXPERIENCES》, 15 October 2004 (2004-10-15), XP011149418, DOI: doi:10.1109/MMUL.2006.75
    ROBERT G. MALKIN: "The CLEAR 2006 CMU Acoustic Environment Classification System", 《MULTIMODAL TECHNOLOGIES FOR PERCEPTION OF HUMANS LECTURE NOTES IN COMPUTER SCIENCE》, vol. 4122, 31 December 2007 (2007-12-31), pages 323 - 330
    UTA CHRISTOPH, ET AL.: "Automatic context detection of a mobile user", 《WIRELESS INFORMATION NETWORKS AND SYSTEMS (WINSYS), PROCEEDINGS OF THE 2010 INTERNATIONAL CONFERENCE ON》, vol. 1, no. 6, 28 July 2010 (2010-07-28), pages 26 - 28, XP031936589

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    Publication numberPublication dateAssigneeTitle