JPH0159962U

JPH0159962U -

Info

Publication number: JPH0159962U
Application number: JP15429687U
Authority: JP
Priority date: 1987-10-08
Filing date: 1987-10-08
Publication date: 1989-04-14

Description

[Brief explanation of the drawing]

第１図は本考案のデジタル信号の磁気記録再生
装置の実施例図、第２図は本実施例の説明図でヘ
ツドが磁気テープをスキヤンする軌跡を示す図、
第３図は記録するデジタル信号の説明図、第４図
は従来のヘリカルスキヤン方式による磁気テープ
の記録トラツクを示す図、第５図は記録されるデ
ジタル信号を示す図である。４…時間圧縮回路、１５…ドラムモータのサー
ボ回路、２１…倍率設定回路。 FIG. 1 is an embodiment of the digital signal magnetic recording and reproducing apparatus of the present invention, and FIG. 2 is an explanatory diagram of this embodiment, showing the locus of the head scanning the magnetic tape.
FIG. 3 is an explanatory diagram of a digital signal to be recorded, FIG. 4 is a diagram showing a recording track of a magnetic tape by a conventional helical scan method, and FIG. 5 is a diagram showing a digital signal to be recorded. 4...Time compression circuit, 15...Drum motor servo circuit, 21...Magnification setting circuit.

補正昭６２．１２．１１実用新案登録請求の範囲を次のように補正する
。Amendment December 11, 1982 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】(1) 定速走行する磁気テープに、回転数Ｎｏの
ドラムに載置したヘツドの１スキヤン毎にデジタ
ル信号の記録トラツクを形成する２ヘツドヘリカ
ルスキヤン方式のデジタル信号の磁気記録再生装
置において、ドラムをｎＮｏなる回転数で回転さ
せる回転数可変手段と（ここでｎは正の奇数）、
記録するデジタル信号を１／ｎに時間圧縮し、ヘ
ツドの（ｎ−１）スキヤンおきに記録する信号記
録手段と、前記記録手段で記録された信号を再生
する再生手段とを具備したことを特徴とするデジ
タル信号の磁気記録再生装置。(2) 前記再生手段は、信号を記録したヘツドと
同一ヘツドが次にスキヤンする際に、以前に記録
した信号を再生してモニタリングする手段とした
ことを特徴とする実用新案登録請求の範囲第１項
に記載のデジタル信号の磁気記録再生装置。 [Claims for Utility Model Registration] (1) A digital signal of a two-head helical scan system that forms a recording track of a digital signal on a magnetic tape running at a constant speed for each scan of a head mounted on a drum at a rotational speed No. In the magnetic recording/reproducing device, a rotation speed variable means for rotating the drum at a rotation speed of nNo (where n is a positive odd number);
It is characterized by comprising a signal recording means for time-compressing a digital signal to be recorded to 1/n and recording it every (n-1) scan of the head, and a reproducing means for reproducing the signal recorded by the recording means. A magnetic recording and reproducing device for digital signals. (2) The reproducing means is means for reproducing and monitoring the previously recorded signal when the same head that recorded the signal performs the next scan. The magnetic recording and reproducing device for digital signals according to item 1.

Claims

[Claims for Utility Model Registration] Magnetic recording of digital signals on a magnetic tape running at a constant speed using a two-head helical scan method in which a recording track of a digital signal is formed for each scan of a head mounted on a drum at a rotational speed No. The playback device includes a rotation speed variable means for rotating the drum at a rotation speed of nNo (where n is a positive odd number), time compression of the digital signal to be recorded to 1/n, and (n-1) scan interval of the head. Magnetic recording of digital signals characterized by comprising: a signal recording means for recording the signal on the magnetic head; and a means for reproducing and monitoring the previously recorded signal when the same head that recorded the signal scans the next time. playback device.