JPS613532U

JPS613532U - magnetic tape device

Info

Publication number: JPS613532U
Application number: JP8109785U
Authority: JP
Inventors: デイーター・シユタルク; オツトー・クランク
Original assignee: リツエンツイア・パテント・フエルヴアルツングス・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング
Priority date: 1976-08-13
Filing date: 1985-05-31
Publication date: 1986-01-10
Also published as: JPS5322730A; ATA563877A; AT354764B; GB1542195A; MY8100006A; FR2361714A1; FR2361714B1; IT1085715B; HK1380A

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、本考案の特徴を有する磁気テープ装置の主要
部を示すブ冶ツク図、第２図は、本考案において設けら
れた発光素子を制御するリング回路の回路図、第３図は
、本考案により設けられた表示装置全体の実施例を示す
ブロック図、第４図は、第１図によるリング回路の制御
に適した切換可能なクロツク発振器を示す回路図である
。２・・・操作素子、４，７・・・制御装置、８，１５，
１７，１９，２１・・・発光素子、３３・・・クロック
発振器、３４・・・リング回路。FIG. 1 is a block diagram showing the main parts of a magnetic tape device having the features of the present invention, FIG. 2 is a circuit diagram of a ring circuit for controlling a light emitting element provided in the present invention, and FIG. FIG. 4 is a circuit diagram showing a switchable clock oscillator suitable for controlling the ring circuit according to FIG. 1; 2... Operating element, 4, 7... Control device, 8, 15,
17, 19, 21... Light emitting element, 33... Clock oscillator, 34... Ring circuit.

Claims

[Scope of claims for utility model registration] 1. Displaying the running direction and running speed of the magnetic tape;
The display device comprises a light-emitting device having a plurality of light-emitting elements arranged side by side, and the light-emitting device device sequentially and continuously emits light in accordance with the movement of the magnetic tape by a control device. , in a magnetic tape device that makes it possible to recognize the running direction and running speed of the magnetic tape, an electronically controllable light emitting element 8 is used, and the light emitting element is turned on and off by an electronic ring circuit 4. 4 is shifted or stepped by a clock oscillator 33, the direction of this shift or step control is switchable by a switching device, and the clock oscillator 33 is switchable between two fixed frequencies by the switching device. ,
The switching device is also connected to the operating element 2 of the magnetic tape unit, the connection being such that: - the direction of the shift or step control corresponds to the respective tape running direction, and when the tape running speed is slow, ;Magnetic tape 2'' that generates a frequency of 112:-
115, 17, 19, 2175 (, 1, 7 circuits 34, When all the light emitting elements are connected in sequence in a direction corresponding to the tape running direction during a certain period, A magnetic tape device according to claim 1, in which the magnetic tape device is cut off successively in the same direction, as claimed in claim 1.3 The ring circuit is formed from a clock-controlled shift register, and each light-emitting element 15, 17, 19 . 2
1 for each stage of the shift register (flip-flop 1
1, 12, 13, 14), and the final stage 14
The output signal of the shift register is inverted and fed back to the input of the first stage 11. Each stage has a first input side J,
In addition to K, there are also clocked second inputs A, B,
C, D, the second, third and final stages 12,
13, 1.4 are each connected to the second input of the preceding stage, the output Q of the first stage 11 is inverted and connected to the second input D of the final stage 14, A control input M is provided in order to supply the shift register with the logic states present at the second inputs A, B, C, D instead of the logic states present at the first inputs K, J, under clock control. , the control inputs M of all stages 11, 12, 13, 14 are interconnected and coupled to the operating element of the magnetic tape device for controlling the shift direction of the shift register, A magnetic tape device according to scope 2. 4 A clock oscillator with a first inverter 36 and a second inverter 37 connected downstream thereof is used, with a resistor 39 connected in series thereto between the input side and the output side of the second inverter 37. A capacitor 40 is provided, a connection point between the resistor 39 and the capacitor 40 is connected to the input side of the first inverter directly or via another resistor 38, and one end of the capacitor 40- is connected to the voltage divider 4.
1.42 to the output side of the second inverter, one end of the voltage divider is connected to the output side 44 of the second inverter 37, and the other end is connected via a diode 47 to the output side 44 of the second inverter 37. , can be selectively connected to a potential corresponding to a logic state, and the terminal of the capacitor 40 facing toward the output side of the second inverter 37 is connected to the midpoint of the voltage divider. The magnetic tape device according to item 1.