Patent ID: 11924450
Assignee: V-NOVA INTERNATIONAL LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A method at a physical adapter, the method comprising:
receiving at least one data stream via at least one physical interface of the physical adapter;
processing the at least one data stream to output:
an encrypted data stream comparing data usable to derive a rendition of a signal at a first level of quality in a tiered hierarchy including multiple levels of quality; and
a reconstruction data stream comprising reconstruction data produced by processing a rendition of the signal at a second, higher level of quality in the tiered hierarchy, wherein the reconstruction data is indicative of a difference between the rendition of the signal at the second, higher level of quality and a further rendition of the signal at the second, higher level of quality, wherein the further rendition of the signal is derived from up-sampling the rendition of the signal at the first level of quality;
decrypting the encrypted data stream to derive a decrypted rendition of the signal at the first level of quality;
synchronizing the decrypted rendition of the signal at the first level of quality with the reconstruction data to output synchronized data for decoding;
decoding, at a decoder, the synchronized data to reconstruct the rendition of the signal at the second, higher level of quality, said rendition being reconstructed from the decrypted rendition of the signal at the first level of quality and the synchronized data; and
outputting at least the reconstructed rendition of the signal and/or data derived from the reconstructed rendition of the signal,
wherein the reconstructed rendition of the signal at the second, higher level of quality is encoded at an encoder that is different from the decoder prior to said outputting of said reconstructed rendition of the signal at the second, higher level of quality and/or the data derived from the reconstructed rendition of the signal at the second, higher level of quality,
wherein the physical adapter is configured to be connectable to signal processing equipment and, when connected to the signal processing equipment, to enhance the functionality of the signal processing equipment, the physical adapter being configured to increase the quality of the rendition of the signal relative to the first level of quality when the at least the reconstructed rendition of the signal and/or data derived from the reconstructed rendition of the signal is output to the signal processing equipment.