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

Claim 0:
1. A physical adapter comprising:
at least one physical interface configured to receive at least one data stream, the at least one data stream comprising:
an encrypted data stream comprising 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;
a first security module to decrypt the encrypted data stream to obtain a decrypted rendition of the signal at the first level of quality;
a decoder configured to reconstruct the rendition of the signal at the second, higher level of quality; and
a first synchronisation module to receive decrypted data from the first security module and the reconstruction data indicating how to reconstruct the rendition of the signal at the second, higher level of quality and to output synchronised data for the decoder,
wherein the decoder is configured to receive the decrypted rendition of the signal at the first level of quality and at least synchronised reconstruction data for reconstruction of the rendition of the signal at the second, higher level of quality,
wherein the physical interface is further configured to output to the signal processing equipment at least the reconstructed rendition of the signal and/or data derived from the reconstructed rendition of the signal,
wherein an encoder is configured to encode the reconstructed rendition of the signal at the second, higher level of quality prior to the output 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, the encoder being connected to and separate from the decoder,
wherein the physical adapter is configured to be connectable to the signal processing equipment and, when connected to the signal processing equipment, the physical adapter is configured to increase the quality of the rendition of the signal relative to the first level of quality by outputting to the signal processing equipment at least the reconstructed rendition of the signal and/or data derived from the reconstructed rendition of the signal.