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JPS62279582A - Information recording and reproducing device - Google Patents

Information recording and reproducing device

Info

Publication number
JPS62279582A
JPS62279582A JP12317186A JP12317186A JPS62279582A JP S62279582 A JPS62279582 A JP S62279582A JP 12317186 A JP12317186 A JP 12317186A JP 12317186 A JP12317186 A JP 12317186A JP S62279582 A JPS62279582 A JP S62279582A
Authority
JP
Japan
Prior art keywords
information
recording
program
sub
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12317186A
Other languages
Japanese (ja)
Inventor
Tokihiro Takahashi
外喜博 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP12317186A priority Critical patent/JPS62279582A/en
Publication of JPS62279582A publication Critical patent/JPS62279582A/en
Pending legal-status Critical Current

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  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

PURPOSE:To easily retrieve a prescribed program from on the way of a magnetic tape by reading sub-information from a recording medium of a high speed travelling, deciding a ranking, counting the number of the main information of the prescribed ranking and recording it into a prescribed position. CONSTITUTION:A reproducing means 2 reproduces main information and sub- information incidental to the main information from recording medium 1 driven at a high speed by a driving means and a reading means 7 reads the sub- information from the reproducing signal outputted by the means 2. From the sub-information read by the means 7, a control circuit 8 decides the ranking of the sub-information and calculates the number of the main information at the prescribed ranking. A generating circuit 9 is controlled by the circuit 8, generates the signal concerning the number and a recording means 2 records the output signal of the circuit 9 to the prescribed position of the medium 1. Thus, the number of the program as TOC information is made coincident to the number of the program to record the program number in the correct ranking and the prescribed program can be easily retrieved from on the way of the medium 1.

Description

【発明の詳細な説明】 3、発明の詳細な説明 〔産業上の利用分野〕 本発明はR−DATに代表される情報記録再生装置に関
する。
Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an information recording/reproducing device typified by R-DAT.

〔発明の概要〕[Summary of the invention]

本発明においては副情報が所定の序列になっている主情
報の数が検索され、記録媒体の所定位置に記録される。
In the present invention, the number of main information items in which sub information is in a predetermined order is searched and recorded at a predetermined position on a recording medium.

〔従来の技術〕[Conventional technology]

最近規格化がなされたR−DATにおいては、第4図に
示すように、各傾斜トラックの略中央部に主情報として
ディジタル化(P CM)された音声信号が、またその
両端部(図中斜線を施した部分)に主情報に付随する副
情報としてのサブコート信号が、各々記録されるように
なっている。サブコード信号としてはIDコード、記録
日時に関するコード、プログラム番号(PN○)のコー
ド等がある。そして各プログラム(例えば名曲)のサブ
コードエリアにはそのプログラムのプログラム番号が記
録されるが、その磁気テープの始端部付近のサブコード
エリアには、その磁気テープに記録されているプログラ
ムの内容を表すTOC(Table  of  Con
tents)情報が記録される。
In R-DAT, which has been standardized recently, as shown in Figure 4, an audio signal digitized as main information (PCM) is placed approximately at the center of each inclined track, and at both ends (in the figure). Sub-coat signals as sub-information accompanying the main information are recorded in the shaded areas. The subcode signals include an ID code, a code related to the recording date and time, a program number (PN○) code, and the like. The program number of each program (for example, a famous song) is recorded in the subcode area of that program, and the content of the program recorded on the magnetic tape is recorded in the subcode area near the beginning of the magnetic tape. TOC (Table of Con)
tents) information is recorded.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

TOC情報として例えばその磁気テープに記録されてい
るプログラムの数(総数)を記録する場合、磁気テープ
を早送り又は巻戻してサブコードを読み取り、プログラ
ムの数を計数することが考えられる。しかしながらこの
ように単にプログラムの数を計数し、記録するだけでは
、プログラム番号が、例えば磁気テープの始端から1.
2,3.6.7のように欠番がある状態で記録されてい
たり、あるいは3,1.2.3.4のように正しい序列
ではない状態で記録されていたりすると、始端から何番
目の曲であるのかを指定して磁気テープの途中から所定
の曲を検索することが困難になる。
For example, when recording the number (total number) of programs recorded on a magnetic tape as TOC information, it is conceivable to fast forward or rewind the magnetic tape, read the subcode, and count the number of programs. However, simply counting and recording the number of programs in this way does not allow the program numbers to vary, for example, from the beginning of the magnetic tape to 1.
If it is recorded with missing numbers like 2, 3, 6.7, or not in the correct order like 3, 1, 2, 3.4, the number from the start It becomes difficult to search for a predetermined song from the middle of the magnetic tape by specifying whether it is a song or not.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は情報記録再生装置において、記録媒体を駆動す
る駆動手段と、高速で駆動される記録媒体から主情報と
主情報に付随する副情報を再生する再生手段と、再生手
段が出力する再生信号から副情報を読み取る読取手段と
、読取手段が読み取った副情報の序列を判定し、所定の
序列にある主情報の数を演算する制御回路と、制御回路
により制御され、数に関する信号を発生する発生回路と
The present invention provides an information recording and reproducing apparatus, including a driving means for driving a recording medium, a reproducing means for reproducing main information and sub information accompanying the main information from a recording medium driven at high speed, and a reproduction signal outputted by the reproducing means. a reading means for reading sub-information from the reading means; a control circuit for determining the order of the sub-information read by the reading means and calculating the number of main information in a predetermined order; and a control circuit that is controlled by the control circuit and generates a signal related to the number. generation circuit.

発生回路が出力する信号を記録媒体の所定位置に記録す
る記録手段とを備えることを特徴とする。
The apparatus is characterized by comprising a recording means for recording the signal outputted by the generating circuit at a predetermined position on a recording medium.

〔作用〕[Effect]

記録媒体が通常の記録再生時における場合より高速で走
行され、副情報が読み取られる。順次読み取られる副情
報の序列(順列)が判定され所定の序列になっている主
情報の数が計数される。計数された主情報の数が所定位
置に記録される。
The recording medium is run at a higher speed than during normal recording and reproduction, and the sub information is read. The order (permutation) of the sub information that is read out sequentially is determined, and the number of main information that is in a predetermined order is counted. The counted number of main information is recorded at a predetermined position.

〔実施例〕〔Example〕

第1図は本発明の情報記録再生装置をR−DATに応用
した場合のブロック図である。同図において1は記録媒
体としての磁気テープであり、回転磁気ヘッド2を有す
る回転ドラム3に略9o度巻回されている。4はロータ
リトランスであり、回転磁気ヘッド2の信号を増幅回路
5に伝達する。
FIG. 1 is a block diagram when the information recording/reproducing apparatus of the present invention is applied to an R-DAT. In the figure, reference numeral 1 denotes a magnetic tape as a recording medium, which is wound around a rotating drum 3 having a rotating magnetic head 2 by approximately 9 degrees. A rotary transformer 4 transmits the signal from the rotating magnetic head 2 to the amplifier circuit 5.

6は変換回路であり、増幅回路5から供給されるRF倍
信号復調してディジタル信号に変換する。
A conversion circuit 6 demodulates the RF multiplied signal supplied from the amplifier circuit 5 and converts it into a digital signal.

7は読取回路であり、変換回路6から入力される信号か
らサブコード信号を読み取り、その読み取った値をマイ
クロコンピュータ等の制御回路8に出力する。9はTO
C信号発生回路であり、制御回路8により制御され、所
定のTOC信号を出力する。このTOC信号は変換回路
10によりRF倍信号変換され、増幅回路11、ロータ
リトランス4を介して回転磁気ヘッド2に供給される。
A reading circuit 7 reads a subcode signal from the signal input from the conversion circuit 6 and outputs the read value to a control circuit 8 such as a microcomputer. 9 is TO
This is a C signal generation circuit, which is controlled by the control circuit 8 and outputs a predetermined TOC signal. This TOC signal is converted into an RF signal by a conversion circuit 10, and is supplied to the rotating magnetic head 2 via an amplifier circuit 11 and a rotary transformer 4.

12は磁気テープ1と回転ドラム3を駆動する駆動回路
である。
A drive circuit 12 drives the magnetic tape 1 and the rotating drum 3.

しかしてその作用は第2図のフローチャー1・に示すよ
うになる。制御回路8に所定の入力を行うと、制御回路
8は駆動回路12に制御信号を出力し、回転ドラム3を
所定の速度で回転させるとともに、磁気テープ1を通常
の記録再生時における場合より高速で巻戻す。磁気テー
プ1がその始端まで巻戻されたとき、制御回路8は値A
を1にセットし、磁気テープ1を高速で早送りさせる。
The operation is as shown in flowchart 1 in FIG. When a predetermined input is made to the control circuit 8, the control circuit 8 outputs a control signal to the drive circuit 12, causing the rotary drum 3 to rotate at a predetermined speed, and the magnetic tape 1 to be rotated at a higher speed than during normal recording and playback. to rewind. When the magnetic tape 1 is rewound to its starting end, the control circuit 8 receives the value A.
is set to 1, and the magnetic tape 1 is fast-forwarded at high speed.

このとき再生手段としての回転磁気ヘッド2から出力さ
れる再生信号がロータリトランス4、増幅回路5を介し
て変換回路6に入力される。変換回路6は入力されたR
F倍信号ディジタル信号に復調して読取回路7に出力す
る。読取回路7は再生ディジタル信号を読み取り、その
中からプログラム番号(PNO)を読み出す。プログラ
ム番号が読み取られたとき、制御回路8はその値が値A
(A=1)と等しいか否かを判断し1等しい場合は値A
を1つインクリメントして(A=2として)次に読み取
られるプログラム番号と比較する。斯がる動作が読み取
られたプログラム番号と値Aとが不一致となるまで(あ
るいは磁気テープ1の終端に達するまで)行なわれる。
At this time, a reproduction signal outputted from a rotary magnetic head 2 serving as reproduction means is inputted to a conversion circuit 6 via a rotary transformer 4 and an amplifier circuit 5. The conversion circuit 6 receives the input R
The signal is demodulated into an F-fold digital signal and output to the reading circuit 7. The reading circuit 7 reads the reproduced digital signal and reads out the program number (PNO) from it. When the program number is read, the control circuit 8 determines that its value is the value A.
(A=1) and if it is equal to 1, the value A
is incremented by one (A=2) and compared with the program number to be read next. This operation is continued until the read program number and the value A do not match (or until the end of the magnetic tape 1 is reached).

読み取ったプログラム番号と値Aが不一致になったとき
値Aは1つディクリメントされる。これにより値Aが、
1.2.3・・・の正しい序列でプログラム番号が付さ
れているプログラムの数(総数)と一致させられる。
When the read program number and value A do not match, value A is decremented by one. As a result, the value A becomes
1.2.3... are matched with the number of programs (total number) assigned program numbers in the correct order.

次に制御回路8は駆動回路12を制御し、磁気テープ1
を始端まで巻戻させる。始端まで巻戻した後制御回路8
は装置をアフレコモートに設定し、磁気テープ1を通常
の記録時の速度で走行させる。
Next, the control circuit 8 controls the drive circuit 12 so that the magnetic tape 1
rewind to the beginning. After rewinding to the starting end, the control circuit 8
The apparatus is set to dubbing mode, and the magnetic tape 1 is run at a normal recording speed.

このとき制御回路8はTOC信号発生回路9に制御信号
を出力し、計数した値Aに対応したディジタル信号をT
OC信号として変換回路10に出力させる。変換回路1
0はこの信号をRF倍信号変換して増幅回路11、ロー
タリトランス4を介して記録手段としての回転磁気ヘッ
ド2に供給させる。回転磁気ヘッド2は音声信号エリア
に対向しているとき再生系に接続されるが、サブコード
エリアに対向しているとき記録系に接続され、値A(正
しい序列で記録されているプログラムの数)がTOC情
報として記録される。
At this time, the control circuit 8 outputs a control signal to the TOC signal generation circuit 9, and outputs a digital signal corresponding to the counted value A to the TOC signal generation circuit 9.
It is output to the conversion circuit 10 as an OC signal. Conversion circuit 1
0 converts this signal into an RF multiplied signal and supplies it to the rotating magnetic head 2 as a recording means via the amplifier circuit 11 and the rotary transformer 4. The rotating magnetic head 2 is connected to the reproduction system when facing the audio signal area, but is connected to the recording system when facing the subcode area, and has a value of A (the number of programs recorded in the correct order). ) is recorded as TOC information.

TOC情報の書込みが終了したとき、制御回路8は駆動
回路12を制御し、磁気テープ1を始端まで巻戻させる
When writing of the TOC information is completed, the control circuit 8 controls the drive circuit 12 to rewind the magnetic tape 1 to the starting end.

従って例えば第3図(a)に示すように、磁気テープ1
の始端(BOT)から終端(EOT)まで1.2.3.
4.5と正しい序列でプログラム番号が記録されている
場合は、記録されているプログラムの総数(5)がTO
C情報として記録される6−力筒3図(b)に示すよう
に1.2.3.6.7と途中の番号が欠落している場合
は、欠落する直前までのプログラムの数(3)がTOC
情報として記録される。他方第3図(c)に示すように
、3,1.2.3.4とプログラム番号が1から始まっ
ていないときは高速再生が行なわれず、直ちにそのTO
C情報としてそのプログラムの数がOと記録される。
Therefore, for example, as shown in FIG. 3(a), the magnetic tape 1
From the start end (BOT) to the end end (EOT) of 1.2.3.
If the program numbers are recorded in the correct order such as 4.5, the total number of recorded programs (5) is TO
If the number 1.2.3.6.7 and the intermediate numbers recorded as C information are missing as shown in Figure (b), the number of programs (3 ) is TOC
Recorded as information. On the other hand, as shown in Figure 3(c), if the program number does not start from 1 (3, 1, 2, 3, 4), high-speed playback is not performed and the TO
The number of programs is recorded as O as C information.

尚以上においては磁気テープ1を一旦始端まで巻戻した
後、高速(早送り)再生してプログラム番号を読み出す
ようにしたが、巻戻し際中に読出すようにすることもで
きる。この場合巻戻し開始点のプログラム番号をNとす
るとき、プログラム番号がN、N−1、・・・2,1と
なった場合のみ始端から高速再生を実行し、N+1、N
+2・・・のプログラム番号を読み出すようにし、その
他の場合は直ちにTOC情報としての数を0と記録する
ようにしてもよい。このようにすると動作時間をより短
縮することができる。
In the above description, the magnetic tape 1 is once rewound to the starting end and then reproduced at high speed (fast forward) to read out the program number, but it is also possible to read the program number during rewinding. In this case, when the program number at the start point of rewinding is N, high-speed playback is executed from the starting point only when the program number becomes N, N-1, ... 2, 1, N+1, N
The program number +2, etc. may be read out, and in other cases, the number may be immediately recorded as 0 as TOC information. In this way, the operating time can be further shortened.

本発明はR−DAT以外に、8ミリビデオテ一プレコー
ダ等他の情報記録再生装置においても応用が可能である
The present invention can be applied not only to R-DAT but also to other information recording and reproducing apparatuses such as 8 mm video tape recorders.

〔効果〕〔effect〕

以上の如く本発明は情報記録再生装置において。 As described above, the present invention relates to an information recording/reproducing apparatus.

記録媒体を駆動する駆動手段と、高速で駆動される記録
媒体から主情報と主情報に付随する副情報を再生する再
生手段と、再生手段が出力する再生信号から副情報を読
み取る読取手段と、読取手段が読み取った副情報の序列
を判定し、所定の序列にある主情報の数を演算する制御
回路と、制御回路により制御され、数に関する信号を発
生する発生回路と、発生回路が出力する信号を記録媒体
の所定位置に記録する記録手段とを偉えるようにしたの
で、R−DAT等においてTOC情報としてのプログラ
ムの数を、正しい序列でプログラム番号を記録したプロ
グラムの数と一致させることができ、磁気テープの途中
から所定のプログラムを検索することが容易になる。
A driving means for driving a recording medium, a reproducing means for reproducing main information and sub information accompanying the main information from the recording medium driven at high speed, and a reading means for reading the sub information from a reproduction signal outputted by the reproducing means. A control circuit that determines the order of the sub information read by the reading means and calculates the number of main information in a predetermined order, a generator circuit that is controlled by the control circuit and generates a signal related to the number, and an output from the generator circuit. Since the recording means for recording signals at a predetermined position on the recording medium is improved, the number of programs as TOC information in R-DAT etc. must match the number of programs whose program numbers are recorded in the correct order. This makes it easy to search for a predetermined program from the middle of the magnetic tape.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の情報記録再生装置のブロック図、第2
図はそのフローチャート、第3図はその磁気テープの説
明図、第4図はR−DATの磁気テープの説明図である
。 1・・・磁気テープ 2・・・回転磁気ヘッド 3・・・回転ドラム 4・・・ロータリトランス 6・・・変換回路 7・・・読取回路 8・・・制御回路 9・・・TOC信号発生回路 10・・・変換回路 12・・・駆動回路 以上
FIG. 1 is a block diagram of the information recording and reproducing apparatus of the present invention, and FIG.
The figure is a flowchart, FIG. 3 is an explanatory diagram of the magnetic tape, and FIG. 4 is an explanatory diagram of the R-DAT magnetic tape. 1... Magnetic tape 2... Rotating magnetic head 3... Rotating drum 4... Rotary transformer 6... Conversion circuit 7... Reading circuit 8... Control circuit 9... TOC signal generation Circuit 10...conversion circuit 12...driver circuit or higher

Claims (1)

【特許請求の範囲】[Claims] 記録媒体を駆動する駆動手段と、高速で駆動される該記
録媒体から主情報と該主情報に付随する副情報を再生す
る再生手段と、該再生手段が出力する再生信号から該副
情報を読み取る読取手段と、該読取手段が読み取った該
副情報の序列を判定し、所定の序列にある該主情報の数
を演算する制御回路と、該制御回路により制御され、該
数に関する信号を発生する発生回路と、該発生回路が出
力する該信号を該記録媒体の所定位置に記録する記録手
段とを備えることを特徴とする情報記録再生装置。
A driving means for driving a recording medium, a reproducing means for reproducing main information and sub information accompanying the main information from the recording medium driven at high speed, and reading the sub information from a reproduction signal outputted by the reproducing means. a reading means, a control circuit that determines the order of the sub information read by the reading means and calculates the number of the main information in a predetermined order, and is controlled by the control circuit and generates a signal related to the number. An information recording/reproducing apparatus comprising: a generating circuit; and recording means for recording the signal output from the generating circuit at a predetermined position on the recording medium.
JP12317186A 1986-05-27 1986-05-27 Information recording and reproducing device Pending JPS62279582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12317186A JPS62279582A (en) 1986-05-27 1986-05-27 Information recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12317186A JPS62279582A (en) 1986-05-27 1986-05-27 Information recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS62279582A true JPS62279582A (en) 1987-12-04

Family

ID=14853940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12317186A Pending JPS62279582A (en) 1986-05-27 1986-05-27 Information recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS62279582A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01211387A (en) * 1988-02-19 1989-08-24 Alpine Electron Inc System for recording magnetic tape
JPH0224891A (en) * 1988-07-14 1990-01-26 Pioneer Electron Corp Digital audio tape recorder
WO1998007158A1 (en) * 1996-08-13 1998-02-19 Sony Corporation Device and method for managing recorded program information and device and method for recording and reproducing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01211387A (en) * 1988-02-19 1989-08-24 Alpine Electron Inc System for recording magnetic tape
JPH0224891A (en) * 1988-07-14 1990-01-26 Pioneer Electron Corp Digital audio tape recorder
WO1998007158A1 (en) * 1996-08-13 1998-02-19 Sony Corporation Device and method for managing recorded program information and device and method for recording and reproducing
US6327417B1 (en) 1996-08-13 2001-12-04 Sony Corporation Apparatus and method for reconstructing a tape library containing program information corresponding to programs recorded on a magnetic tape

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