ES2204289B1 - AUDIO CODED BY ANALOG REMASTERIZATION. - Google Patents

Abstract

Audio coded by analog remastering. Compared to the classic protection systems by copying methods, the invention is based on the anti-reproduction by coding of the sound on the master CD, which will be duplicated to all copies made of it, so that said coding generates digital alterations both in the phase and frequency as in the amplitude of the sound, which deform it totally making it unpleasant to the human ear, being necessary a later decoding to access its normal hearing. For said decoding a key (5) is used that incorporates the decoder, provided with a male (3) "jack" type terminal, pluggable into the output (6) for headphones of the playback equipment (7), key (5) provided with in turn of its own output (4) for said headphones, so that without the contest of the key (5) it is impossible to hear the reproduced audio support correctly, said key (5) being specific for each original CD.

Description

Audio coded by remastering analogue

Object of the invention

The present invention relates to a system of encoding to protect audio recordings, in all its Support modes: CD, DVD, audio tapes, video tapes, sound files and in general any media whose Playback is done using a player device Audio.

The practical scope of the invention is located in any company or direct related natural person or indirectly with the creation, recording, production, marketing, etc., audio, both partially and totally, by means of the aforementioned supports, carrying out the analog remastering coding.

Background of the invention

Evidently the lack of protection systems in the fields of audio and video, it implies significant losses inexpensive through pirated copies that are distributed illegally to consumers, obviously at a lower price than The originals.

Specifically in the field of audio and for solve this problem, copy-protection systems are known, which avoid copying of the media by reading and later recording them, based on key encryptions, fingerprints, marks, digital notches, track modification, etc, which prevent the reading of said media where appropriate peripherals controlled and governed by computer systems.

These systems are vulnerable in the first place because according to maximum computing everything digitally protectable it is equally unprotectable, in its second place because it only protect the copy by read-write, remaining Immune all copy process by stamping, burning, etc, that allows current technology, and thirdly because once copying in no case protects its reproduction in any non-intelligent player, such as fixed music equipment or laptops, discman, etc, since these do not have testers smart but instead perform a reproduction "blind" audio recorded on different media.

Description of the invention

The encoded audio system that the invention proposes to solve the problem fully satisfactorily previously exposed, essentially because it is not a copy system but an anti-reproduction system, not existing to date no system operating in this line.

More specifically, it is a system of analog encoding / decoding of sound on the master CD that will be duplicated in all copies made and that will prevent securely and universally hearing any pirated copy that is not accompanied by its corresponding decoder.

Specifically the encoded audio consists basically of a digital encoder using software and a analog decoder via hardware.

The first is responsible for encrypting the sound master through numerous algorithms, each in turn with billions of sequences, which generate digital alterations in both the phase and frequency as in the amplitude of the sound, and at the time of reproduction become analog alterations of it, causing an unpleasant noise to the human ear.

The same algorithms and sequences used for sound coding, they will be recorded in a decoder analogue, in functions of "key", which will henceforth be so called and that is essential to faithfully hear the original recording

Said key integrates an input connection, a circuit implanted in a microchip and an output interface, all this encapsulated in a standard market type plug "jack" or "minijack", to ensure compatibility in All audio player equipment.

The microchip basically consists of a filter analog signal, governed by the recorded algorithm and sequence in an eprom memory.

The key input connection is intended to be introduced in the standard headphone output of the reproductive equipment, or in the case of fixed players that do not have a headphone output or that this is not Bridgeable, an accessory properly integrated into the player

Thus, encoded audio does not prevent copying Pirate stand, but prevents faithful reproduction of sound which contains said copy, if the encrypted key is not available adequate, so that the effectiveness of the protection system is optimal

Other advantages can be synthesized in the following aspects:

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He security system is hermetic and variant, with which the study of coding algorithms and sequences and their decryption is virtually inaccessible to criminals and people not  authorized.

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It is universally compatible with Reproductive equipment

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Maximum simplicity from an operational point of view and extreme difficulty from the constructive, thus becoming a complex system and Deterrent as far as plagiarism is concerned.

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Symbol and seal of legality, creating the collective awareness of legal purchase and in turn creating collective distrust of the purchase of illegal plagiarism.

Description of the drawings

To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of it, is accompanied as part member of that description, a set of drawings where with illustrative and non-limiting nature, what has been represented next:

Figure 1.- Shows a representation schematic and interior of the key that participates in an audio encoded by analog remastering performed in accordance with the object of the present invention.

Figure 2.- Shows a first example of practical realization of the key with the complementary equipment Audioplayer.

Figure 3.- Shows a similar representation to that of figure 2, in which the key is multiple, in numerical match with the CD trays that the player.

Figure 4.- Shows a detail in perspective of the accessory for the necessary reproductive equipment when this last one lacks headphone output or that output is not bridgeable

Figure 5.- Shows a block diagram corresponding to the coding process.

Figure 6.- Shows, according to a representation similar to figure 5, the decoding process.

Preferred Embodiment of the Invention

In view of the figures outlined you can be observed as the encoded audio that the invention proposes is based on the use of a key constituted by means of a capsule (1) that houses inside a microchip (2), assisted by a male jack (3) and a headphone output (4), of so that, as seen in figure 2, the device in its set, which has been globally referenced with (5), is Connectable through its male jack (3) to the jack input female and universal (6) of the audio player equipment (7) that concerned, said key (5) acting as an intercom bridge between the equipment itself (7) and the earphones, which in turn They will be connected to the outlet (4) of the key.

In the case of a reproductive device (7 ') multi-entry, that is to say of several mouths, like the one represented in the Figure 3, the key (5 ') will be modified in this regard, being equally multiple, to automatically select the key corresponding in numerical order with the manual chosen CD or automatically for the audition, as follows from the observation of the aforementioned figure 3.

In the case of reproductive equipment without headphone output or with non-bridged output, the accessory shown in figure 4, complementary to the equipment player (7) and consisting of a small housing (8) interconnectable to said equipment (7) and provided with housing or jack female (9) for the key (5).

Figure 5 depicts the process of audio coding in which starting from the master audio u original (10) the software (11) is encoded audio, obtaining the encoded master audio (12), which is proceeds to the creation (13) of the decoder key (5).

In the decoding process, shown in the Figure 6, from the encoded master audio (12) it it introduces in the reproductive equipment (7), while in its exit audio (14) the decoder key (5) is implanted to be able to access a decoded audition (15).

Obviously and from the basic elements previously mentioned, different components and different integrated circuits, as well as different software, for get keys or key capsules with different aspects and numbers of connections.

Claims (4)

1. Audio coded by analog remastering, characterized in that from an original master audio (10), on any support mode such as CD, DVD or others, with the collaboration of an encoding phase of the audio software (11), it is transformed into an encoded master audio (12) for which a specific decoder key (5) is established that allows the conversion of the encoded master audio (12) into a decoded hearing (15), so that security derives from anti-reproduction of the audio in the absence of the corresponding key. 2. Audio coded by analog remastering, according to claim 1, characterized in that said coding, which aims to encrypt the master sound by means of numerous algorithms that generate digital alterations both in phase and frequency and in amplitude of the sound, is complementary to the same data of decoding existing in an analog decoder (5) or key, provided with respect to a microchip (2) carrier of the decryption software. 3. Audio coded by analog remastering, according to claim 2, characterized in that when the playback equipment (7) incorporates an output (6) for earphones, the key (5), provided with a male jack (3), is connected to said input (6), while the key (5) has an output (4) for said earphones. 4. Audio coded by analog remastering, according to claim 2, characterized in that when the playback equipment lacks headphone output or said output is not bridged, with the playback equipment (7) an accessory (8) collaborates that is inserted into the output of audio of the equipment and that is equipped with an input (9) for the corresponding decoder key (5).