JPS5379334A - Memory unit - Google Patents

Memory unit

Info

Publication number
JPS5379334A
JPS5379334A JP15484976A JP15484976A JPS5379334A JP S5379334 A JPS5379334 A JP S5379334A JP 15484976 A JP15484976 A JP 15484976A JP 15484976 A JP15484976 A JP 15484976A JP S5379334 A JPS5379334 A JP S5379334A
Authority
JP
Japan
Prior art keywords
memory unit
address
tracks
track
search
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
JP15484976A
Other languages
English (en)
Other versions
JPS6222186B2 (ja
Inventor
Kazuo Shigematsu
Takeshi Maeda
Zenji Tsutsumi
Seiichi Mita
Seiji Yonezawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15484976A priority Critical patent/JPS5379334A/ja
Publication of JPS5379334A publication Critical patent/JPS5379334A/ja
Publication of JPS6222186B2 publication Critical patent/JPS6222186B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP15484976A 1976-12-24 1976-12-24 Memory unit Granted JPS5379334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15484976A JPS5379334A (en) 1976-12-24 1976-12-24 Memory unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15484976A JPS5379334A (en) 1976-12-24 1976-12-24 Memory unit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP29481586A Division JPS62275324A (ja) 1986-12-12 1986-12-12 アクセス方法

Publications (2)

Publication Number Publication Date
JPS5379334A true JPS5379334A (en) 1978-07-13
JPS6222186B2 JPS6222186B2 (ja) 1987-05-16

Family

ID=15593234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15484976A Granted JPS5379334A (en) 1976-12-24 1976-12-24 Memory unit

Country Status (1)

Country Link
JP (1) JPS5379334A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103134A (en) * 1980-12-17 1982-06-26 Matsushita Electric Ind Co Ltd Optical disk
JPS6133224U (ja) * 1984-07-27 1986-02-28 日本電気ホームエレクトロニクス株式会社 光記録カ−ド
JPS63122071A (ja) * 1986-11-11 1988-05-26 Sony Corp デイスク状記録媒体

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103134A (en) * 1980-12-17 1982-06-26 Matsushita Electric Ind Co Ltd Optical disk
JPH0250535B2 (ja) * 1980-12-17 1990-11-02 Matsushita Electric Ind Co Ltd
JPS6133224U (ja) * 1984-07-27 1986-02-28 日本電気ホームエレクトロニクス株式会社 光記録カ−ド
JPH0348729Y2 (ja) * 1984-07-27 1991-10-17
JPS63122071A (ja) * 1986-11-11 1988-05-26 Sony Corp デイスク状記録媒体

Also Published As

Publication number Publication date
JPS6222186B2 (ja) 1987-05-16

Similar Documents

Publication Publication Date Title
NL7600921A (nl) Associatief geheugen met gescheiden associeerba- re blokken.
AT355353B (de) Hierarchische speicheranordnung
SE7614101L (sv) Energiupptagande stativ
SE7603038L (sv) Lagerenhet
SE7604427L (sv) Anordning for forflyttning av foremal i hyllor
IT978277B (it) Cortina fotorivelatrice ad alta densita
IT1061077B (it) Macchina rincalzatrice in particolare macchina per rincalzare e li vellare binari
DK1177A (da) Sporskifte
DD131873A5 (de) Zweigang-planetengetriebe
SE425019B (sv) Roterande deplacementkompressor med kapacitetsreglering
SE7714502L (sv) Vinkelhastighetskonstant universalled
SE7713767L (sv) Varvtalsregulator
FR2345591A1 (fr) Disque tournant redondant
AR205584A1 (es) Disposicion de fijacion de la velocidad de platos giradiscos
IT1083415B (it) Complesso giocattolo comprendente una torre di controllo con una pluralita di segmenti di pista
IT967335B (it) Generatore di gas ad alta velocita
BR7508488A (pt) Aperfeicoamento em anei com duas pistas coletoras
AT332257B (de) Antriebsanordnung beim turbinenspinnen
JPS5379334A (en) Memory unit
SE7704382L (sv) Regleringsanordning for strommen av ett gasformigt medium i en ledning
AT339359B (de) Gleisstopfmaschine mit vorkopfverdichter
FR2330114A1 (fr) Perfectionnements aux memoires associatives
JPS5379335A (en) Memory unit
IT938780B (it) Cescia volante adatta in partico lar modo per laminati ad alta velocita
SE405158B (sv) Vinkelhastighetskonstant universalled