Patent ID: 9547753
Date: 2017-01-17
CPC Classifications: G06F,H04N

Claim:
1. A method of embedding watermarks into a host content, comprising: obtaining a payload of a first watermark message for embedding into the host content; obtaining a payload of a second watermark message that is different from the payload of the first watermark message for embedding into the host content, the second watermark message having a different number of symbols than the first watermark message; and embedding the first and the second watermark messages into the host content in a coordinated fashion such that the embedded first watermark message has a pre-defined relationship with the embedded second watermark message in a particular domain, wherein the symbols of the first watermark message are embedded in interleaved embedding opportunities with the symbols of the second watermark message in the particular domain, and wherein the pre-defined relationship comprises a ratio of the interleaved embedding opportunities allocated to the symbols of the first watermark message to the symbols of the second watermark message, the ratio selected to achieve a particular watermark extraction reliability of the first watermark message.