JPS6093120U

JPS6093120U - tape recorder

Info

Publication number: JPS6093120U
Application number: JP18549583U
Authority: JP
Inventors: 正美土田
Original assignee: パイオニア株式会社
Priority date: 1983-11-30
Filing date: 1983-11-30
Publication date: 1985-06-25

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 drawings]

第１図は従来のテープレコーダを示す回路図、第２図は
他の従来例を示す回路図、第３図は第２図の構成による
各部の信号波形図、第４図はこの　　−考案によるテー
プレコーダの一実施例を示す回路図、第５図ａ、　ｂは
第４図の構成による各部の信号波形図である。ｌａ、ｌｂ・・・・・・テープエンド検出回路、２１・
・・・・・制御回路、３　ａ、　３　ｂ・・・・・・テ
ープ駆動メカニズム、４・・・・・・ゲート回路、５・
・・・・・微分回路、６・・・・・・ＲＳフリップフロ
ップ。Figure 1 is a circuit diagram showing a conventional tape recorder, Figure 2 is a circuit diagram showing another conventional example, Figure 3 is a signal waveform diagram of each part with the configuration shown in Figure 2, and Figure 4 is based on this invention. A circuit diagram showing an embodiment of a tape recorder, FIGS. 5a and 5b are signal waveform diagrams of various parts according to the configuration shown in FIG. 4. la, lb...Tape end detection circuit, 21.
... Control circuit, 3 a, 3 b ... Tape drive mechanism, 4 ... Gate circuit, 5.
...Differential circuit, 6...RS flip-flop.

Claims

[Scope of utility model registration request]

, first and second tape drive mechanisms;
and a single control circuit for controlling the operating mode of the second tape drive mechanism; first and second tape end detection circuits provided for each of the first and second tape drive mechanisms; the above first and second respectively.
an RS flip-flop connected to the tape drive mechanism of the first tape drive mechanism, and having an output connected to the tape end detection input of the control circuit section, the signal for detecting the tape end of the first tape drive mechanism is sent to the RS flip-flop. A signal whose phase has been inverted is connected to the set input via a differentiator circuit, and a signal for detecting the tape end of the second tape drive mechanism is connected to the reset input of the RS flip-flop. A signal inputted through a differentiating circuit and having its phase inverted is inputted to the set input through the differentiating circuit, and when the first and second tape drive mechanisms are in a mode in which they operate simultaneously, the two phases are inverted. 1. A tape recorder characterized in that the tape recorder is configured to prohibit input of either a normal signal or an inverted signal to the set input and reset input of the RS flip-flop.