JPS59138033U

JPS59138033U - tape recorder

Info

Publication number: JPS59138033U
Application number: JP3313483U
Authority: JP
Inventors: 宏正鈴木
Original assignee: アルパイン株式会社
Priority date: 1983-03-08
Filing date: 1983-03-08
Publication date: 1984-09-14

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図は本考案に使用されるコンビネーションヘッドと
磁気テープとの関係を示す説明図、第２図は従来の回路
図、第３図は第２図における波形整形回路の詳細図、第
４図は一定の周波数を通常の走行状態にて磁気テープに
一定のレベルにて録音したものを、早送り状態（巻き戻
し状態も含む）で再生したもののレベルと巻き取りスピ
ードとの関係あ説明図、第５図は本考案の実施例に係る
回路図、第６図は第５図における入力信号取り出し部の
詳細図である。１・・・再生用ヘッド、２・・・録音用ヘッド、３・・
・コンビネーションヘッド、１０・・・走行制御回路、
１１・・・入力信号取り出し部、１２・・・入力信号増
幅器、１３・・・入力レベル検出回路、１４・・・検出
動作制御回路、１５・・・録音状態検出回路、１６・・
・走行状態検出回路。、ヰ５図　　ア・・、２　　ロー１口 ↓埜／ｌｚ／１３　　　　　　ノ居ぼ（４ジ轡」Figure 1 is an explanatory diagram showing the relationship between the combination head and magnetic tape used in the present invention, Figure 2 is a conventional circuit diagram, Figure 3 is a detailed diagram of the waveform shaping circuit in Figure 2, and Figure 4. is an explanatory diagram showing the relationship between the level and winding speed when a certain frequency is recorded at a certain level on a magnetic tape under normal running conditions and played back in fast forward mode (including rewind mode). FIG. 5 is a circuit diagram according to an embodiment of the present invention, and FIG. 6 is a detailed diagram of the input signal extraction section in FIG. 5. 1... Playback head, 2... Recording head, 3...
・Combination head, 10... travel control circuit,
DESCRIPTION OF SYMBOLS 11... Input signal extraction part, 12... Input signal amplifier, 13... Input level detection circuit, 14... Detection operation control circuit, 15... Recording state detection circuit, 16...
・Running status detection circuit. ,ヰ5Figure A... ,2 Low 1 mouth↓埜/lz/13 ノいbo (4ji 轡)

Claims

[Scope of utility model registration request]

1. A playback signal can be detected in a tape recorder using a combination head in which a playback head and a recording head are integrated adjacent to each other and the gap between the playback head is shifted from the mechanical center. a recording head; an input signal extraction section for extracting a playback signal from the recording head;
an input signal amplifier that receives and amplifies the output signal of the input signal output/output section; and a running control circuit that receives the output signal from the input signal amplifier and detects the input l/bel and controls the tape running state. an input level detection circuit that supplies an output signal, and a detection operation control circuit that controls the operation of the input level detection circuit in response to a signal from a running detection section that detects a fast forwarding state of the magnetic tape and a normal tape running state. A tape recorder comprising: