Adaptive and progressive audio stream descrambling
A process for distributing digital audio sequences in streams including data sequences containing digital audio blocks including modifying at least a part of the data sequences in an original stream to produce a modified stream in a same nominal format as the original stream, transmitting the modified stream, and reconstructing the original stream with the aid of a decoder, wherein reconstruction of the original stream is adaptive and progressive as a function of information coming from a digital profile of a target.
1 - 21 . (canceled)
22 . A process for distributing digital audio sequences in streams comprising data sequences containing digital audio blocks comprising:
modifying at least a part of the data sequences in an original stream to produce a modified stream in a same nominal format as the original stream,
transmitting the modified stream, and
reconstructing the original stream with the aid of a decoder, wherein reconstruction of the original stream is adaptive and progressive as a function of information coming from a digital profile of a target.
23 . The process according to claim 22 , wherein the modification produces a modified main stream and complementary information that permits reconstruction of the original stream by a decoder by transmitting the modified stream and transmitting to target equipment a subpart of the complementary modification information, which subpart is determined as a function of information coming from a data profile of the target.
24 . The process according to claim 23 , wherein the modified main stream is recorded or available on the target equipment prior to transmission of the complementary information on the target equipment.
25 . The process according to claim 23 , wherein the modified main stream is recorded on a physical support to be transmitted to the target equipment prior to the transmission of the complementary information on the target equipment.
26 . The process according to claim 23 , wherein the modified main stream and the complementary information are transmitted together in real time.
27 . The process according to claim 23 , wherein determination of the subpart is achieved by granular scalability.
28 . The process according to claim 23 , wherein the quantity of information contained in the subpart corresponds to a level of scalability determined as a function of the target profile.
29 . The process according to claim 23 , wherein the type of information contained in the subpart corresponds to a level of scalability determined as a function of the target profile.
30 . The process according to claim 23 , wherein the complementary modification information comprises at least one digital routine suitable for executing a function.
31 . The process according to claim 30 , wherein functions transmitted to each target are personalized for each target as a function of a session.
32 . The process according to claim 23 , wherein the complementary information is subdivided into at least two subparts.
33 . The process according to claim 32 , wherein the subparts of the complementary information are distributed by different media.
34 . The process according to claim 32 , wherein the subparts of the complementary information are distributed by the same media.
35 . The process according to claim 23 , wherein all or part of the complementary information is transmitted on a physical vector.
36 . The process according to claim 23 , wherein the complementary information is transmitted online.
37 . The process according to claim 22 , further comprising digital blocks in conformity with a given digital audio norm or with a standard.
38 . The process according to claim 22 , wherein at least a part of the profile is stored on equipment of the target.
39 . The process according to claim 23 , wherein the type of information contained in the subpart is updated as a function of the behavior of the target during connection to server or as a function of habits or as a function of data communicated by a third party.
40 . The process according to claim 22 , further comprising a prior analog/digital conversion stage with a structured format, which is applied to an analog audio signal.
41 . A system for distributing digital audio sequences comprising a server including a device that broadcasts a stream modified in conformity with claim 22 and a plurality of pieces of equipment provided with a descrambling circuit, wherein the server also comprises a recorder of the digital profile of each target and an analyzer of the profile of each of the targets of a modified stream, the analyzer ordering the nature of the complementary information transmitted to each of the analyzed targets.
42 . A system according to claim 41 , wherein the level (quality, quantity, type) of complementary information is determined for each target as a function of the state of its profile at a moment the main stream is listened to.