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Efficient apparatus and method for audio signature generation using recognition history

  • US 10,278,017 B2
  • Filed: 06/30/2017
  • Issued: 04/30/2019
  • Est. Priority Date: 05/16/2014
  • Status: Active Grant
First Claim
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1. A method for monitoring audio information by a user device, the user device performing audio content recognition of any received audio content, the user device including (i) a scheduling logic unit, (ii) a probe that captures ambient audio content, and (iii) an audio signature generator that generates audio signatures for subsequent use in audio content recognition, the method comprising:

  • (a) maintaining in the scheduling logic unit a set of reusable scheduling rules that define one or more conditions that were present when previous audio content recognition of audio content received by the user device is determined as being successful, the determination of successful audio content recognition being when an audio signature of the audio content previously received by the user device matches a previously stored audio signature, wherein the previous audio content is audio content of media content that is broadcast to multiple users, and wherein the set of scheduling rules are not associated with scheduled broadcast times of any audio content, and wherein the one or more conditions in the scheduling rules are reusable over time without requiring any subsequent determination of a successful audio content recognition, and wherein the one or more conditions in the scheduling rules are unrelated to any time windows of a timestamp of audio signatures;

    (b) receiving in the scheduling logic unit currently present conditions of the user device;

    (c) comparing in the scheduling logic unit the currently present conditions of the user device to the set of scheduling rules to determine when the currently present conditions match any scheduling rules; and

    (d) capturing ambient audio content by the user device via the probe and generating audio signatures of the captured audio content using the audio signature generator when a match occurs in step (c), and inhibiting capturing audio content by the user device and/or inhibiting generating audio signatures when a match does not occur in step (c),wherein the inhibiting of capturing audio content and/or the inhibiting of generating audio signatures both inhibit performing audio content recognition because no audio signatures are available to perform the subsequent audio content recognition, andwherein the captured ambient audio content is audio content of media content that is broadcast to multiple users.

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