JPS5398814A - Grooveless medium disc for information recording - Google Patents

Grooveless medium disc for information recording

Info

Publication number
JPS5398814A
JPS5398814A JP1332277A JP1332277A JPS5398814A JP S5398814 A JPS5398814 A JP S5398814A JP 1332277 A JP1332277 A JP 1332277A JP 1332277 A JP1332277 A JP 1332277A JP S5398814 A JPS5398814 A JP S5398814A
Authority
JP
Japan
Prior art keywords
grooveless
information recording
medium disc
information signals
electrostaic
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
JP1332277A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5732415B2 (2
Inventor
Kosei Wada
Toshio Kaneshiro
Ichiro Ueno
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP1332277A priority Critical patent/JPS5398814A/ja
Priority to NLAANVRAGE7801387,A priority patent/NL173104C/xx
Priority to GB5033/78A priority patent/GB1600431A/en
Priority to NLAANVRAGE7801440,A priority patent/NL173797C/xx
Priority to FR7803570A priority patent/FR2384316B1/fr
Priority to CA296,450A priority patent/CA1106061A/en
Priority to GB5035/78A priority patent/GB1600432A/en
Priority to CA000296451A priority patent/CA1119296A/en
Priority to FR7803571A priority patent/FR2382742B1/fr
Priority to DE2805323A priority patent/DE2805323C2/de
Priority to DE2805322A priority patent/DE2805322C2/de
Priority to FR7819900A priority patent/FR2384317B1/fr
Publication of JPS5398814A publication Critical patent/JPS5398814A/ja
Priority to US06/055,752 priority patent/US4327430A/en
Priority to US06/186,297 priority patent/US4420827A/en
Publication of JPS5732415B2 publication Critical patent/JPS5732415B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP1332277A 1977-02-09 1977-02-09 Grooveless medium disc for information recording Granted JPS5398814A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
JP1332277A JPS5398814A (en) 1977-02-09 1977-02-09 Grooveless medium disc for information recording
NLAANVRAGE7801387,A NL173104C (nl) 1977-02-09 1978-02-07 Informatiesignaalregistratiemedium van roterende soort en inrichting voor het registreren van informatiesignalen daarop.
CA000296451A CA1119296A (en) 1977-02-09 1978-02-08 Information signal recording medium of the rotary type
NLAANVRAGE7801440,A NL173797C (nl) 1977-02-09 1978-02-08 Informatiesignaalregistreermedium met een plat oppervlak, en registreerinrichting voor een dergelijk medium.
FR7803570A FR2384316B1 (fr) 1977-02-09 1978-02-08 Support d'enregistrement de signaux video et audio et dispositif pour realiser des enregistrements sur ce support
CA296,450A CA1106061A (en) 1977-02-09 1978-02-08 Rotary recording medium with intermediate pits
GB5035/78A GB1600432A (en) 1977-02-09 1978-02-08 Information signal recording medium of rotary type and apparatus for recording information signal thereon
GB5033/78A GB1600431A (en) 1977-02-09 1978-02-08 Information signal recording medium of rotary type and apparatus for recording information signal thereon
FR7803571A FR2382742B1 (fr) 1977-02-09 1978-02-08 Support pour enregistrer des signaux video et audio et dispositif pour realiser des enregistrements sur ce support
DE2805323A DE2805323C2 (de) 1977-02-09 1978-02-09 Drehbarer Informationssignal-Aufzeichnungsträger und Aufzeichnungsanordnung für den Aufzeichnungsträger
DE2805322A DE2805322C2 (de) 1977-02-09 1978-02-09 Drehbarer Informationssignal-Aufzeichnungsträger und Aufzeichnungsanordnung zur Herstellung des Informationssignal-Aufzeichnungsträgers
FR7819900A FR2384317B1 (fr) 1977-02-09 1978-07-04 Dispositif d'enregistrement, notamment de signaux d'information, sur des supports tournants
US06/055,752 US4327430A (en) 1977-02-09 1979-07-06 Information signal recording medium of rotary type with overlapped tracks
US06/186,297 US4420827A (en) 1977-02-09 1980-09-11 Disc reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1332277A JPS5398814A (en) 1977-02-09 1977-02-09 Grooveless medium disc for information recording

Publications (2)

Publication Number Publication Date
JPS5398814A true JPS5398814A (en) 1978-08-29
JPS5732415B2 JPS5732415B2 (2) 1982-07-10

Family

ID=11829911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1332277A Granted JPS5398814A (en) 1977-02-09 1977-02-09 Grooveless medium disc for information recording

Country Status (1)

Country Link
JP (1) JPS5398814A (2)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53103715A (en) * 1977-02-23 1978-09-09 Victor Co Of Japan Ltd Grooveless disc for information recording medium
JPS56107306A (en) * 1978-11-16 1981-08-26 Rca Corp Record disk

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046429A (2) * 1973-08-31 1975-04-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046429A (2) * 1973-08-31 1975-04-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53103715A (en) * 1977-02-23 1978-09-09 Victor Co Of Japan Ltd Grooveless disc for information recording medium
JPS56107306A (en) * 1978-11-16 1981-08-26 Rca Corp Record disk

Also Published As

Publication number Publication date
JPS5732415B2 (2) 1982-07-10

Similar Documents

Publication Publication Date Title
JPS5363002A (en) Signal recording system and disk type medium for recording signal
JPS5432307A (en) Magnetic reproducer
JPS52123606A (en) Recorder/reproducer
JPS5369006A (en) Reproducer of disc form signal recording media
JPS5224027A (en) Record regenerator
JPS5398814A (en) Grooveless medium disc for information recording
JPS53144707A (en) Signal detecting system by variable thresholds
JPS53111706A (en) Recording and reproducing system for audio signals
JPS52135613A (en) Information recording media
JPS52129221A (en) Magnetic reproducing unit
JPS5275426A (en) Video signal recording apparatus
JPS53118102A (en) Cleaner of reproducing stylus
JPS5266338A (en) Pattern information record/play system
JPS52141605A (en) Record disk reproduction device
JPS53105123A (en) Recording regenerative method for information signal
JPS53110510A (en) Data recording method for recording medium featuring plural fixed length recording units
JPS5315807A (en) Detecting circuit for magnetically recorded information
JPS52104907A (en) Information signal reproducing system
JPS53125809A (en) Recording and reproducing method for mode signals
JPS5462810A (en) Recording-reproducing system
JPS53125816A (en) Recording system for information recorded medium disc
JPS51129208A (en) Polylayer magnetic recording reproducing method
JPS5329105A (en) Record stylus abration degree detector
JPS53103715A (en) Grooveless disc for information recording medium
JPS5431706A (en) Magnetic recorder-reproducer