Patent ID: 9245309
Filing Date: 2016-01-26
CPC Classification: G06K,G06T,G10L,H04N

Claim Text:
1. A method for a machine or group of machines to provide feedback regarding potential detectability by a decoder of a watermark message produced by a watermarking encoder, the method comprising: extracting a watermark signal embedded within an output signal of the watermarking encoder, the extracted watermark signal including the watermark message; enhancing the extracted watermark signal into an enhanced watermark signal; adding the enhanced watermark signal to an audio signal; receiving a watermark detectability indication corresponding to detectability of the watermark message in the enhanced watermark signal added to the audio signal; transforming the watermark detectability indication into an enhancement indication corresponding to a prescribed enhancement to the extracted watermark signal in which the watermark message is included, wherein the transforming the watermark detectability indication into the enhancement indication includes: comparing the watermark detectability indication to a threshold, determining a number of times that the watermark detectability indication equals or exceeds the threshold, crediting detection of the watermark message for a time period when the determined number of times that the watermark detectability indication equals or exceeds the threshold equals or exceeds a predetermined number in the time period, determining the enhancement indication based on whether detection of the watermark has been credited; and transmitting the enhancement indication such that the enhancing of the extracted watermark signal is based on the enhancement indication.