JPH01253871A - Recording device - Google Patents

Abstract

PURPOSE:To copy main information finite number of times by providing an input interfacing means and a generation information updating means, and updating generation information and recording it together with the main information when the generation information satisfies a prescribed condition. CONSTITUTION:When it is assumed that a signal inputted to the input interface part 1 has a sound signal and the generation information as discrimination information, this sound information is given code converting processing necessitated for recording by a generation information processing part 2. On the other hand, the generation information of the inputted signal is detected and is decided whether to satisfy the prescribed condition or not by the generation information processing part 2. The result of this decision is outputted to a system control part 6, and in a case that recording is permitted, the generation information is updated by a generation information processing part 3, and is outputted to a recording signal synthesizing processing part 4. Then, after it is synthesized with the sound signal having been given the code converting processing by the processing part 4 according to the instruction of the control part 6, it is modulated into a recording signal by an interface part 5, and is recorded on a recording medium 7.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a recording device that can control the first generation update when copying information and the copying function itself in equipment for recording and reproducing information.

2. Description of the Related Art In recent years, various measures have been taken to prevent unauthorized copying of information.

For example, an audio signal recording device based on the PC or M system is equipped with means for detecting the originalization frequency, and by setting different originalization frequencies for those that permit copying and those that prohibit copying, copies are made only at the originalization frequency of the former. Methods are used to make it possible to copy the digital signal directly, or to control the recording of the main information using identification information indicating whether copying is possible, which is input along with the audio signal of the main information. . In addition, as a method of prohibiting the copying of commercially available music software, by cutting a specific frequency band of the audio signal with a steep filter, the recording device can be equipped with a means to detect this. was suggested.

Problems to be Solved by the Invention However, with the above configuration, the quality of the music, which is the main information, may be degraded, or the sampling frequency at which copying is permitted or the main information with identification information that permits copying may deteriorate. can be copied as many times as you like, and
It is possible to update the generation through repetition permanently, and the original copyright may be eroded by the circulation of a large number of copies, while the main information cannot be copied at all if copying is not permitted. There was a peak between h and h in which it was not possible to control the number of copies of information or the generation update caused by repeating copies from a copy.

The present invention is to provide a recording device that extends beyond the above-mentioned points and controls the number of copies by controlling recording according to copy generation information input together with the main information.

Means for resolving the problem In order to solve the above-mentioned discrepancies, the recording device of the present invention includes an input interface means for receiving copy generation information input together with the main information, and recording the main information according to the generation information. comprising means for controlling and means for updating generation information;
The output information of the substitute information updating means is recorded together with the main information.

Effect of the present invention With the above-described configuration, the recording of main information whose generation information does not satisfy a predetermined condition is prohibited, and if the generation information satisfies the predetermined condition, the generation information is updated and recorded together with the main information, so that the generation information can be copied a finite number of times. This makes it possible to control generation updates through copying.

Embodiment Hereinafter, a recording apparatus according to an embodiment of the present invention will be described with reference to the drawings.

The figure shows the configuration of an embodiment in which the present invention is applied to an audio signal recording apparatus using the PGM system.

, 41, 1 is an input interface section that receives copy generation information that is input together with the main information, 2 is a main 1 blue report processing section, 3 is a generation information processing section, 4 is a recording signal synthesis processing section, and 5 is a recording section. An interface section, 6, a system control section, and 7 a recording medium.

In FIG. 1, following the signal flow, first, if the signal input to the input interface unit 1 is an audio signal and has generation information as its identification information, then the audio signal is input to the main information processing unit 2. Coding and modulation processing necessary for recording is performed.

On the other hand, the generation information processing section 3 detects the generation information of the input signal and determines whether or not it satisfies a predetermined condition.

The results of the determination are output to the system control unit, etc., and if recording is permitted, the generation information is updated in the generation information processing unit 3 and output to the recording signal synthesis processing unit 4. After being synthesized with the audio signal subjected to the encoding and modulation processing in the recording signal synthesis processing section 4, it is recorded in the recording interface section 6, modulated into a green signal, and recorded on the recording medium 7. When recording is prohibited, updating of the generation information and child code modulation processing in the main information processing section 2 are prohibited by a command from the system control section "5."

Effects of the Invention As described above, the present invention includes an input interface means for receiving copy generation information input together with the main information, a means for controlling recording of the main information in accordance with the above-mentioned subsidy information ff1K, and a means for updating the generation information. By recording the output information of the above-mentioned 1-cut i information updating means together with the main information, recording of the main information whose generation information does not satisfy a predetermined condition is prohibited, and if the generation information satisfies the predetermined condition, the generation information is By updating and recording the main information together with the main information, the main information can be copied a finite number of times.

Furthermore, if it is determined that copying is possible based on the generation information, a new record is made +iJ: =t'C
Normally information is increased by one, but under certain conditions the first generation information is not updated, or conversely, the generation can be traced back.You can update the shipping cost by copying according to any specification during system design. It can also be controlled.

[BRIEF DESCRIPTION OF THE DRAWINGS] The figure is a block diagram showing the configuration of an embodiment of the present invention applied to a P (4) system audio signal recording device. 1. Input interface unit; 2...
・Main information processing department, 3...1 Sodai information processing department, 4.
... Recording signal synthesis processing section, 5 ... Recording interface section, 6 ... System control section,
···recoding media.

Claims (3)

[Claims] (1) An input interface means for receiving copy generation information input together with the main information, a means for controlling recording of the main information according to the generation information, and a means for updating the generation information; A recording device that records output information along with main information. (2) The recording apparatus according to claim 1, wherein the output information of the generation information updating means is combined with the main information and recorded. (3) The recording device according to claim 1, wherein an audio signal is recorded as the main information.