Portable devices and methods employing digital watermarking
View Patent ↗Media objects are transformed into active, connected objects via identifiers embedded into them or their containers. In the context of a user's playback experience, a decoding process extracts the identifier from a media object and possibly additional context information and forwards it to a server. The server, in turn, maps the identifier to an action, such as returning metadata, re-directing the request to one or more other servers, requesting information from another server to identify the media object, etc. The server may return a higher fidelity version of content from which the identifier was extracted. In some applications, the higher fidelity version may be substituted for the original media object and rendered to provide higher quality output. The linking process applies to broadcast objects as well as objects transmitted over networks in streaming and compressed file formats.
1. In a portable wireless device that includes a sensor to capture image or audio data, a method comprising:
capturing audio in the device to provide an audio signal;
extracting data from the captured audio from the audio signal, the extracted data serving to identify the audio signal, wherein the extracted data is obtained from a digital watermark steganographically embedded in the audio signal;
wirelessly transferring the extracted data to a remote location; and
wirelessly receiving data separate from yet corresponding to the extracted data from the remote location, wherein the extracted data provides identification of the audio signal and the separate data corresponds to the extracted data through a database that associates the identification of the audio signal with the separate data.
2. The method of claim 1 wherein the data corresponding to the extracted data comprises a higher fidelity version of the audio.
3. The method of claim 1 which further includes indexing a database with reference to at least a portion of a digital watermark decoded from the audio signal to obtain information corresponding to the audio signal, and returning the information to the portable wireless device.
4. The method of claim 3 which further includes indexing a database with reference to at least a portion of the decoded watermark to obtain a computer address corresponding thereto, and receiving content data from said computer address at a destination device.
5. The method of claim 4 in which the destination device is co-located with the portable device.
6. The method of claim 5 in which the destination device comprises the portable device.
7. The method of claim 2 including:
substituting the higher fidelity version for at least a part of the captured data to create a new data object; and
rendering the new data object on an output device.