Digital enveloping for digital right management and re-broadcasting
Multiple data sets are preprocessed by WF muxing before stored/transported. WF muxed data is aggregated data from multiple data sets. The original data is reassembled via WF demuxing after retrieving a lesser but scalable number of WF muxed data sets. A customized set of WF muxing on multiple digital files as inputs including at least a data message file and a selected digital envelop file, is configured to guarantee at least one of the multiple outputs comprising a weighted sum of all inputs with an appearance to human natural sensors substantially identical to the appearance of the selected digital envelop in a same image, video or audio format. The output file is the file with enveloped or embedded messages. The embedded message may be reconstituted by a corresponding WF demuxing processor at destination with the known a priori information of the original digital envelope.
1. An apparatus comprising:
a memory storing a digital envelope; and
a device having input ports and output ports and configured to receive concurrently M input streams at the input ports, M being an integer greater than 1, perform a wavefront multiplexing transformation on the M input streams, and generate concurrently M output streams at the output ports, the M input streams comprising a first input stream including digital identifiers identifying a copy version for digital right management and a second input stream being the digital envelope, each of the M output streams being a linear combination of the M input streams such that one or more of the M output streams include the wavefront multiplexed digital identifiers and, when presented in a digital format, appear to human perception as having identical features to the digital envelope presented in the digital format,
wherein the digital envelope is a data file known to a destination configured to recover the digital identifiers from a subset of the M output streams, and
wherein the digital envelope is scaled with a magnification factor greater than 1 in the wavefront multiplexing transformation.
2. The apparatus of claim 1 , wherein the digital envelope comprises signals in a format of digital video or digital movie.
3. The apparatus of claim 1 , wherein the magnification factor is image dependent and ranges from 5 to 30.
4. The apparatus of claim 1 , wherein the wavefront multiplexing transformation comprises a Fourier transform or a Hadamard transform.
5. The apparatus of claim 1 , wherein the wavefront multiplexing transformation comprises an orthogonal matrix transform or a non-orthogonal full-rank matrix transform.
6. The apparatus of claim 1 , wherein the one or more of the M output streams are recorded in a digital format.
7. The apparatus of claim 1 , wherein the digital envelope is in a format of a digital document or a format of a digital movie.
8. A method comprising:
storing a digital envelope in a memory;
receiving concurrently M input streams at input ports of a device, M being an integer greater than 1, the M input streams comprising a first input stream including digital identifiers identifying a copy version for digital right management and a second input stream being the digital envelope;
performing a wavefront multiplexing transformation on the M input streams; and
generating concurrently M output streams at output ports of the device, each of the M output streams being a linear combination of the M input streams such that one or more of the M output streams include the wavefront multiplexed digital identifiers and, when presented in a digital format, appear to human perception as having identical features to the digital envelope presented in the digital format,
wherein the digital envelope is a data file known to a destination configured to recover the digital identifiers from a subset of the M output streams, and
wherein the digital envelope is scaled with a magnification factor greater than 1 in the wavefront multiplexing transformation.
9. The method of claim 8 , wherein the digital envelope comprises signals in a format of digital video or digital movie.
10. The method of claim 8 , wherein the magnification factor is image dependent and ranges from 5 to 30.
11. The method of claim 8 , wherein the wavefront multiplexing transformation comprises a Fourier transform or a Hadamard transform.
12. The method of claim 8 , wherein the wavefront multiplexing transformation comprises an orthogonal matrix transform or a non-orthogonal full-rank matrix transform.
13. The method of claim 8 , wherein the one or more of the M output streams are recorded in a digital format.
14. The method of claim 8 , wherein the digital envelope is in a format of a digital document or a format of a digital movie.
15. A system comprising:
a sender comprising:
a memory storing a digital envelope; and
a device having input ports and output ports and configured to receive concurrently M input streams at the input ports, M being an integer greater than 1, perform a wavefront multiplexing transformation on the M input streams, and generate concurrently M output streams at the output ports, the M input streams comprising a first input stream including digital identifiers identifying a copy version for digital right management and a second input stream being the digital envelope, each of the M output streams being a linear combination of the M input streams such that one or more of the M output streams include the wavefront multiplexed digital identifiers and, when presented in a digital format, appear to human perception as having identical features to the digital envelope presented in the digital format,
wherein the digital envelope is a data file known to a destination configured to recover the digital identifiers from a subset of the M output streams, and
wherein the digital envelope is scaled with a magnification factor greater than 1 in the wavefront multiplexing transformation; and
a receiver at the destination to retrieve the M output streams stored in a network storage and to recover the digital identifiers from the subset of the retrieved M output streams, the receiver comprising:
a post-processing device to generate the digital identifiers by performing a wavefront demultiplexing transformation on the subset of the retrieved M output streams based on the digital envelope and the magnification factor, the wavefront demultiplexing transformation being an inverse of the wavefront multiplexing transformation.
16. The system of claim 15 , wherein the digital envelope comprises signals in a format of digital video or digital movie.
17. The system of claim 15 , wherein the magnification factor is image dependent and ranges from 5 to 30.
18. The system of claim 15 , wherein the wavefront multiplexing transformation comprises a Fourier transform or a Hadamard transform.
19. The system of claim 15 , wherein the wavefront multiplexing transformation comprises an orthogonal matrix transform or a non-orthogonal full-rank matrix transform.
20. The system of claim 15 , wherein the digital envelope is in a format of a digital document or a format of a digital movie.