US Patent 11792447 Watermarking with phase shifting

Apparatus, devices, systems, methods, and articles of manufacture are disclosed for watermarking with phase shifting. Example watermark decoding apparatus disclosed herein are to identify watermark components in a media signal, determine a phase shift pattern associated with the watermark components in the media signal, the phase shift pattern based on one or more phase references, and detect a symbol of a watermark based on the phase shift pattern, the watermark associated with the watermark components in the media signal.