JPH01177487U

JPH01177487U -

Info

Publication number: JPH01177487U
Application number: JP1988074442U
Authority: JP
Priority date: 1988-06-03
Filing date: 1988-06-03
Publication date: 1989-12-19

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例によるタイマカセ
ツトを示す斜視図、第２図は第１図のタイマカセ
ツトを使用したＶＴＲの回路を示すブロツク図、
第３図はこの考案の他の実施例によるタイマカセ
ツトを示す斜視図、第４図は第３図のタイマカセ
ツトを使用したＶＴＲの回路を示すブロツク図、
第５図は従来のテープカセツトを示す斜視図、第
６図は第５図のテープカセツトを使用したＶＴＲ
の回路を示すブロツク図、第７図は第６図のもの
のフローチヤートである。図において、１……磁気テープ、２……テープ
カセツト、４……メモリ制御回路、５……内部タ
イマメモリ、２１……タイマカセツト、５１……
外部タイマメモリ、５２……接続端子、５３……
磁気記録媒体、５４……磁気ヘツド、５５……磁
気ヘツド用アンプ、５６……メモリ制御回路用バ
ツフア、６２……制御マイコン、６３……ＶＴＲ
。なお、図中同一符号は同一、または相当部分を
示す。 FIG. 1 is a perspective view showing a timer cassette according to an embodiment of this invention, and FIG. 2 is a block diagram showing a circuit of a VTR using the timer cassette of FIG. 1.
FIG. 3 is a perspective view showing a timer cassette according to another embodiment of the invention, and FIG. 4 is a block diagram showing a circuit of a VTR using the timer cassette of FIG. 3.
Figure 5 is a perspective view of a conventional tape cassette, and Figure 6 is a VTR using the tape cassette shown in Figure 5.
FIG. 7 is a flowchart of the circuit shown in FIG. In the figure, 1... magnetic tape, 2... tape cassette, 4... memory control circuit, 5... internal timer memory, 21... timer cassette, 51...
External timer memory, 52... Connection terminal, 53...
Magnetic recording medium, 54...Magnetic head, 55...Amplifier for magnetic head, 56...Buffer for memory control circuit, 62...Control microcomputer, 63...VTR
. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A timer cassette characterized in that part or all of the memory for storing timer reservation information is replaced with a removable, readable and writable external memory, which can be loaded into a VTR together with a tape cassette.