76198996
Jan 25, 2001
computer software used for embedding and detecting watermarking information and tracking information in electronic signals, namely, digital data streams, and audio, video, audiovisual, and multimedia signals; computer software for tracking radio broadcasts, television broadcasts, multimedia presentations, and audio, video, and multimedia signals communicated over a global computer network; encoders for embedding and transporting watermarking information and tracking information in electronic signals, namely, digital data streams, and audio, video, audiovisual, and multimedia signals; decoders for recovering watermarking information and tracking information from electronic signals, namely, digital data streams, and audio, video, audiovisual, and multimedia signals
Electrical and Scientific Apparatus