JPS62147107U

JPS62147107U -

Info

Publication number: JPS62147107U
Application number: JP3270986U
Authority: JP
Priority date: 1986-03-07
Filing date: 1986-03-07
Publication date: 1987-09-17

Description

[Brief explanation of the drawing]

第１図はこの考案の１実施例のブロツク図、第
２図は従来の磁気テープ装置のブロツク図である
。２はバツフアメモリ、３は磁気テープ、４は書
き込みヘツド、５は書き込み回路、６は読み取り
ヘツド、７は読み取りチエツク回路、８は制御回
路、９はカウンタ回路、１０は回数設定スイツチ
、１１は比較器、１２は警告ランプ。なお、図中
、同一符号は同一、又は相当部分を示す。 FIG. 1 is a block diagram of one embodiment of this invention, and FIG. 2 is a block diagram of a conventional magnetic tape device. 2 is a buffer memory, 3 is a magnetic tape, 4 is a write head, 5 is a write circuit, 6 is a read head, 7 is a read check circuit, 8 is a control circuit, 9 is a counter circuit, 10 is a number setting switch, 11 is a comparator , 12 is a warning lamp. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A buffer memory that temporarily stores write data sent from the host, a write head and write circuit that write this data in predetermined blocks on a magnetic tape, and a read head and read check that read and check the blocks following writing. In a magnetic tape device that employs a method of rewriting the corresponding block when a read error occurs, the magnetic tape device has a counter circuit that counts the number of rewrites;
A magnetic tape device comprising: a switch for setting a permissible number of rewrites; and a comparison circuit and a display for indicating that the number of rewrites exceeds the permissible number.