JPS5933111U

JPS5933111U - magnetic recording and reproducing device

Info

Publication number: JPS5933111U
Application number: JP12635782U
Authority: JP
Inventors: 憲一佐藤; 賢西村
Original assignee: 三洋電機株式会社
Priority date: 1982-08-20
Filing date: 1982-08-20
Publication date: 1984-03-01

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図は磁気抵抗効果型ヘッドの構造説明図、第２図は
マルチトラックヘッド部の各磁気抵抗効果ヘッドの配置
説明図、第３図は従来の固定ヘッド弐ＰＣＭ磁気記録再
生装置のブロック図、第４図はコンパクトカセット規格
のテープの寸法およびテープのトラックと各磁気抵抗効
果型ヘッドとの関係説明図、第５図はこの考案の磁気記
録再生装置の１実施例の一部のブロック図である。４・・・チー７’、５ａ、　　５ｒ・・・ＭＲヘッド、
６・・・マルチトラックヘッド部、１０・・・増幅部、
１１ａ〜１１ｒ・・・電圧増幅器、１２・・・波形整形
部、１３ａ〜１３ｒ・・・波形整形回路、１６・・・デ
ジタル信号処理部、１７・・・デジタル／アナログ変換
部、１８・・・平滑部、２０・・・移相部、２１Ｃ〜２
１ｅ・・・移相回路、２２・・・加算部、２３・・・加
算回路、２４・・・補正部、２５・・・周波数特性補正
回路。Fig. 1 is an explanatory diagram of the structure of a magnetoresistive head, Fig. 2 is an explanatory diagram of the arrangement of each magnetoresistive head in a multi-track head section, and Fig. 3 is a block diagram of a conventional fixed head two PCM magnetic recording/reproducing device. , FIG. 4 is an explanatory diagram of the dimensions of a compact cassette standard tape and the relationship between the tape tracks and each magnetoresistive head, and FIG. 5 is a partial block diagram of an embodiment of the magnetic recording/reproducing device of this invention. It is. 4...Chi 7', 5a, 5r...MR head,
6... Multi-track head section, 10... Amplification section,
11a-11r... Voltage amplifier, 12... Waveform shaping section, 13a-13r... Waveform shaping circuit, 16... Digital signal processing section, 17... Digital/analog conversion section, 18... Smooth part, 20... Phase shift part, 21C~2
1e... Phase shift circuit, 22... Addition section, 23... Addition circuit, 24... Correction section, 25... Frequency characteristic correction circuit.

Claims

[Scope of utility model registration request]

A plurality of magnetoresistive heads are arranged in the running direction of the medium for reading audio signals recorded on a magnetic recording medium by converting them into PCM signals and audio signals recorded as analog signals, respectively, and outputting digital playback signals and analog playback signals, respectively. a multi-track head section arranged in orthogonal directions, an amplification section including a plurality of amplification circuits for amplifying the digital playback signal and the analog playback signal of each of the heads, and the digital playback signal via each of the amplification circuits. a waveform shaping section provided with a plurality of waveform shaping circuits that shape the waveform of a reproduced signal; a digital signal processing section that digitally processes the digital reproduction signal via each of the waveform shaping circuits and generates a reproduced PCM signal; A main reproduction processing system consisting of a digital/analog conversion section that converts a PCM signal into analog and outputs an analog conversion signal, and a smoothing section that smoothes the analog conversion signal and outputs a digital side reproduction audio signal, and each of the above-mentioned amplifier circuits. a phase shift unit including a plurality of phase shift circuits that adjust the phase of the analog playback signal; Magnetic recording comprising a sub-reproduction processing system consisting of an addition section provided with an addition circuit, and a correction section provided with a plurality of frequency characteristic correction circuits for correcting the frequency characteristics of the analog addition signal and outputting an analog-side playback audio signal. playback device.