JPS6159478U - - Google Patents

Info

Publication number
JPS6159478U
JPS6159478U JP1984144290U JP14429084U JPS6159478U JP S6159478 U JPS6159478 U JP S6159478U JP 1984144290 U JP1984144290 U JP 1984144290U JP 14429084 U JP14429084 U JP 14429084U JP S6159478 U JPS6159478 U JP S6159478U
Authority
JP
Japan
Prior art keywords
level
lower limit
limit value
circuit
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1984144290U
Other languages
English (en)
Other versions
JPH0423735Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1984144290U priority Critical patent/JPH0423735Y2/ja
Publication of JPS6159478U publication Critical patent/JPS6159478U/ja
Priority to US07/161,349 priority patent/US4791513A/en
Application granted granted Critical
Publication of JPH0423735Y2 publication Critical patent/JPH0423735Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G11B5/4853—Constructional details of the electrical connection between head and arm
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/105—Mounting of head within housing or assembling of head and housing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/11—Shielding of head against electric or magnetic fields
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2651—Manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/4906—Providing winding

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Description

【図面の簡単な説明】
第１図は列車検知装置における受信機の機能構
成を示すブロツク図、第２図は本考案のレベル検
出回路の回路図、第３図は本考案の実施例の動作
状態を示す波形図である。 ５０…レベル検出回路、５１…検出クロツク部
、５１ａ…制御クロツク発振部、５３…シユミツ
ト回路、５５…バツフア回路、５７…フイルター
部、５９…レベル判別器、ＲＨ…上限値レベル検
出用抵抗、ＲＬ…下限値レベル検出用抵抗。

Claims (1)

    【実用新案登録請求の範囲】
  1. 制御クロツク発振部のクロツク周波数によ低抵
    抗を介して制御されるトランジスタに入力電圧の
    下限値を設置する下限値レベル検出用抵抗を直列
    接続した検出クロツク部と、この検出クロツク部
    の下限値レベル検出用抵抗と並列接続した上限値
    レベル検出用抵抗を有するシユミツト回路と、該
    シユミツト回路に接続されたバツフア回路と、こ
    のバツフア回路を介して前記クロツク周波数を選
    別するフイルター部と、該フイルター部の出力信
    号を判定するレベル判別器とから成り、入力電圧
    レベルを上限値以上、上限値と下限値との間、下
    限値以下の三範囲に分割してレベル判定したこと
    を特徴とするレベル検出回路。
JP1984144290U 1984-09-26 1984-09-26 Expired JPH0423735Y2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1984144290U JPH0423735Y2 (ja) 1984-09-26 1984-09-26
US07/161,349 US4791513A (en) 1984-09-26 1988-02-19 Button shaped head for floppy disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984144290U JPH0423735Y2 (ja) 1984-09-26 1984-09-26

Publications (2)

Publication Number Publication Date
JPS6159478U true JPS6159478U (ja) 1986-04-22
JPH0423735Y2 JPH0423735Y2 (ja) 1992-06-03

Family

ID=15358628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984144290U Expired JPH0423735Y2 (ja) 1984-09-26 1984-09-26

Country Status (2)

Country Link
US (1) US4791513A (ja)
JP (1) JPH0423735Y2 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102596C2 (de) * 1990-01-30 1995-08-10 Canon Denshi Kk Magnetkopf

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526514A (en) * 1975-07-04 1977-01-19 Seiko Epson Corp Magnetic head
JPS5330311A (en) * 1976-09-01 1978-03-22 Fujitsu Ltd Production of magnetic head of floating type
JPS5330310A (en) * 1976-09-01 1978-03-22 Fujitsu Ltd Magnetic head assembly of floating type
JPS56501303A (ja) * 1979-10-05 1981-09-10
US4343025A (en) * 1979-10-05 1982-08-03 Nortronics Company, Inc. Transducer arm assembly for floppy disk
US4315293A (en) * 1979-10-05 1982-02-09 Nortronics Company, Inc. Transducer protection guide for diskette insertion and removal
US4327388A (en) * 1980-02-15 1982-04-27 International Business Machines Corporation Transducer-carriage assembly with spring suspension
JPS6346887Y2 (ja) * 1980-07-11 1988-12-05
US4520555A (en) * 1982-09-27 1985-06-04 Magnetic Information Technology, Inc. Apparatus and method for aligning and assembly of a gimbal, magnetic slider head, and flexure arm
JPS5960761A (ja) * 1982-09-30 1984-04-06 Toshiba Corp 磁気ヘツド支持装置
JPS5979417A (ja) * 1982-10-28 1984-05-08 Sony Corp 磁気ヘツド装置

Also Published As

Publication number Publication date
JPH0423735Y2 (ja) 1992-06-03
US4791513A (en) 1988-12-13

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