JPH09139058A - Information recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly perform the program search of desired information at the time of reproduction after recording analog signals of FM broadcasting, etc. SOLUTION: The device is used to record inputted main information 11 and also the control information 12 for every information unit of the information 11. It is provided with a timer 6 which measures the input time of the main information 11, a control information producing means 7 which produces the control information 12, and a recording means 9 which records the information 11 and the control information 12 on a recording medium 1. In this case, the means 7 is constituted so as to divide the information unit of the information 11 and produce the control information 12 including at least the music number every time the timer 6 measures a specified time. By this constitution, an increased music number is recorded every specified time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording device capable of recording data such as music on a disc-shaped recording medium.

[0002]

2. Description of the Related Art Conventionally, in the case of recording an analog signal, a method of recording the song number of a song has been disclosed in JP-A-62-60151.
Japanese Unexamined Patent Publication (Kokai) No. H10-264, pp. 157-334 is known. For example, DAT
When an analog signal is recorded using a (digital audio player) or an MD (mini disk player), if the silent portion continues for a predetermined time, the song number is automatically increased and recorded in the silent portion. On the other hand, at the time of reproduction, the song number is called to find the beginning of the song. FIG. 5 is a block diagram showing a conventional information recording apparatus when the recording medium is an optical disk. In FIG. 5, 1 is an optical disc having a predetermined track form as a recording medium, 2 is an AD converter for converting an analog input signal 13 into a digital signal 14, and 3 is a compression process for the digital signal 14, and outputs main information 11. Signal compression means 4 to perform main information 1
Main information storing means for accumulating 1 and outputting at a predetermined timing, 10 is a silent section detecting means for detecting a silent section of the analog input signal 13, and 7 divides an information unit of the main information 11 and includes at least a song number. Management information generating means for generating the management information 12, 8 is management information storing means for storing the management information 12 and outputting at a predetermined timing, 5 is a signal output from the main information storing means 4 and the management information storing means 8. Signal modulating means for performing modulation processing, and 9 is recording means for recording the output of the signal modulating means 5 on the optical disc 1. In FIG.
The analog input signal 13 is converted into a digital signal 14 by the AD converter 2 and then compressed by the signal compression means 3 to generate the main information 11. At this time, the management information generation means 7 divides the information unit of the main information 11 and generates the management information 12 every time the silence section detection means 10 detects a silence section of the analog input signal 13. With such a configuration, the main information 11 is stored in the main information storage means 4 and the management information 12 is stored.
Are stored in the management information storage means 8, output at a predetermined timing, modulated by the signal modulation means 5, and recorded on the optical disc 1 by the recording means 9.

FIG. 6 is a diagram schematically showing a method of recording and reproducing an analog signal and then playing back to the beginning of a piece of music by a conventional information recording apparatus. As shown in FIG. 6, in the conventional information recording apparatus, the music number is increased and recorded in a silent portion between music pieces. For example, the beginning of the Xth music piece is performed by calling the music piece number X.

However, when songs are connected to each other as in live recording or FM broadcasting, there is no silent portion between the songs, and the song number is not increased and recorded. FIG. 7 is a diagram schematically showing the relationship between program contents and song numbers when an FM broadcast program is recorded for one hour on an MD. In an FM broadcast program, since there are almost no silent portions between songs, the song numbers are not increased and recorded between the songs. As shown in FIG. 7, the song numbers are recorded only at the recording start point. In many cases Therefore, in order to find the beginning of the music 7, the cue operation must be continuously used.

[0005]

In this information recording apparatus, when songs are connected to each other as in live recording or FM broadcasting, there is no silent portion between songs and the song number is not increased and recorded. For this reason, when performing the cue reproduction of a desired music, the cue operation must be continuously used, and there is a problem that it takes a considerable time.
The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an information recording apparatus capable of increasing and recording a music number every predetermined time.

[0006]

In order to solve this problem, the recording / reproducing apparatus of the present invention comprises a timer for measuring the input time of main information, a management information generating means for generating management information,
A recording means for recording the main information and the management information on a recording medium is provided, and the management information generating means is configured to divide the information unit of the main information and generate the management information every time the timer measures a predetermined time. It was done. As a result, the song number is increased and recorded every predetermined time.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is an apparatus for recording management information for each information unit of the main information together with the input main information, and measures the input time of the main information. A timer, a management information generation unit that generates management information, and a recording unit that records the main information and the management information in a recording medium are provided. The management information generation unit is configured to store the main information each time the timer measures a predetermined time. An information recording device characterized by dividing management information into information units and generating management information. The management information generation means divides the information unit of main information every time a timer measures a predetermined time, and management information is generated. To be done.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of an information recording apparatus in the case where the recording medium is an optical disk. The same components as those of the conventional example are denoted by the same reference numerals as those in FIG. 5 and their explanations are omitted. In FIG. 1, 6 is a timer for measuring the input time of the analog input signal 13.

The operation of the recording / reproducing apparatus of the present embodiment having the above-described configuration when recording on an optical disc will be described below.

In FIG. 1, the management information generating means 7 divides the information unit of the main information 11 every time the timer 6 elapses for a predetermined time, and generates the management information 12 including at least the song number.

According to the above construction, the music number is increased and recorded every predetermined time. FIG. 2 is a flow chart of the present embodiment when the music number is increased and recorded every 5 minutes.
The recording start point is set to N = 1 (step 1), and music number 1 is generated (step 2). When it is determined that 5 minutes have passed (step 3), N = N + 1 is set (step 4),
A song number N = N + 1 is generated (step 5). The same operation is repeated until the end of recording. When it is determined that the recording is completed (step 6), the recording of the main information is completed (step 7), the management information is then recorded (step 8), and the recording is completed.

FIG. 3 and FIG. 4 show the F
It is the figure which showed typically the method of performing the cue reproduction of a desired music after recording a 1-hour program of M broadcasting on MD, and music numbers are recorded every 5 minutes. FIG. 3 shows a method of performing cue reproduction of a music piece in advance when it is known in the program guide or the like in which time zone the music piece to be broadcast is broadcast. For example, if the song to be listened to (tune 7 in FIG. 3) is broadcast approximately 45 minutes after the start of recording, song number 10 ((45 minutes / 5 minutes) is used to find the beginning of song 7.
By calling (+ 1 = 10) and performing the cue operation, it is possible to find the beginning of the music 7. Also, FIG.
It shows how to find the song you want to listen to if you do not know at what time during the program. In the conventional MD, the music to be listened to was searched for by repeating the cue operation and the PLAY (playback) operation, but according to the present embodiment, the music number is sequentially called from the beginning and played back (skip playback), so that the program is reproduced. You can quickly find the song you want to listen to by listening to the part of. That is, in FIG. 4, by skipping and reproducing every 5 minutes, it is possible to search for a desired song (song 7 in FIG. 4) in a short time. In addition, it is possible to grasp in a short time what kind of music is broadcast in this program and what kind of program content this program has, but by performing skip reproduction.

As described above, according to the above embodiment, F
Even when an analog signal such as M is recorded, since the music number is increased and recorded at every predetermined time, it is possible to find the music desired to be reproduced in a short time.

In the above embodiment, the case in which the music number is recorded every 5 minutes has been described, but the number is not limited to 5 minutes and can be set to any time. Further, in the above-described embodiment, the method of recording the analog signal in the MD is described, but the method is not limited to the analog signal or the MD, and is also applicable to the case of recording a digital signal in the DAT or the like. can do. Furthermore, in the above-described embodiment, the recording medium is described as an optical disc, but the recording medium is not limited to the optical disc, and may be applied to a semiconductor memory, for example.

[0015]

As described above, according to the present invention, even when an analog signal such as an FM signal is recorded, the song number is increased and recorded at every predetermined time. can do. It is also possible to roughly understand the recorded contents by calling and reproducing the song numbers in order. In addition, since the music number is increased during recording, it is not necessary to separately record the music number when performing editing such as division erasing, which improves operability.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an embodiment of the present invention.

FIG. 3 is a diagram schematically showing an operation for performing cueing reproduction using the recording / reproducing apparatus of the present invention.

FIG. 4

FIG. 5 is a block diagram showing a configuration of a conventional recording / reproducing apparatus.

FIG. 6 is a diagram schematically showing an operation for performing cueing reproduction using a recording / reproducing apparatus of a conventional example.

FIG. 7

[Explanation of symbols]

 1 Optical Disc 2 AD Converter 3 Signal Compressing Means 4 Main Information Storage Means 5 Signal Modulating Means 6 Timer 7 Management Information Generating Means 8 Management Information Storage Means 9 Recording Means 11 Main Information 12 Management Information 13 Analog Input Signals

Claims (1)

[Claims] 1. A device for recording management information for each information unit of the main information together with input main information, the timer measuring the input time of the main information, and the management information generation for generating the management information. Means, comprising a recording means for recording the main information and the management information in a recording medium, the management information generating means divides the information unit of the main information each time the timer measures a predetermined time, An information recording device for generating the management information.