JPS5362501A - Scanning needle - Google Patents

Scanning needle

Info

Publication number
JPS5362501A
JPS5362501A JP13721676A JP13721676A JPS5362501A JP S5362501 A JPS5362501 A JP S5362501A JP 13721676 A JP13721676 A JP 13721676A JP 13721676 A JP13721676 A JP 13721676A JP S5362501 A JPS5362501 A JP S5362501A
Authority
JP
Japan
Prior art keywords
scanning needle
reproduce
configuring
hold
life
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
JP13721676A
Other languages
Japanese (ja)
Other versions
JPS5757771B2 (en
Inventor
Kosei Wada
Kunio Goto
Toshio Kaneshiro
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 JP13721676A priority Critical patent/JPS5362501A/en
Priority to NLAANVRAGE7712557,A priority patent/NL179765C/en
Priority to GB16226/80A priority patent/GB1596664A/en
Priority to DE2751164A priority patent/DE2751164C2/en
Priority to DE2759874A priority patent/DE2759874C2/en
Priority to FR7734505A priority patent/FR2371742A1/en
Priority to CA291,013A priority patent/CA1097806A/en
Priority to GB47733/77A priority patent/GB1596663A/en
Priority to DE19772760017 priority patent/DE2760017C2/en
Priority to US05/852,366 priority patent/US4199782A/en
Publication of JPS5362501A publication Critical patent/JPS5362501A/en
Priority to US06/031,035 priority patent/US4273967A/en
Priority to NL8003297A priority patent/NL8003297A/en
Priority to FR8012771A priority patent/FR2453462B1/en
Priority to CA355,308A priority patent/CA1114949A/en
Priority to US06/221,922 priority patent/US4497052A/en
Priority to NL8105033A priority patent/NL8105033A/en
Publication of JPS5757771B2 publication Critical patent/JPS5757771B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07—Heads for reproducing capacitive information
    • G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: To make long the life and also to reproduce the information signal with a good SN ratio over a long period of time, by configuring so as to hold a specified form of the main signal converter portion independently of the attrition degree.
COPYRIGHT: (C)1978,JPO&Japio
JP13721676A 1976-11-17 1976-11-17 Scanning needle Granted JPS5362501A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
JP13721676A JPS5362501A (en) 1976-11-17 1976-11-17 Scanning needle
NLAANVRAGE7712557,A NL179765C (en) 1976-11-17 1977-11-15 NEEDLE FOR DISPLAYING INFORMATION SIGNALS REGISTERED ON A RECORD MEDIUM.
DE19772760017 DE2760017C2 (en) 1976-11-17 1977-11-16 Stylus for scanning an information signal recorded as changes in the geometric shape of a recording track
US05/852,366 US4199782A (en) 1976-11-17 1977-11-16 Stylus for reproducing capacitive videodisc
DE2751164A DE2751164C2 (en) 1976-11-17 1977-11-16 Playback needle for converting an information signal into electrical capacitance fluctuations
DE2759874A DE2759874C2 (en) 1976-11-17 1977-11-16 Display needle with an electrode for scanning information
FR7734505A FR2371742A1 (en) 1976-11-17 1977-11-16 READING POINT FOR THE REPRODUCTION OF RECORDED SIGNALS ON A RECORDING MEDIUM
CA291,013A CA1097806A (en) 1976-11-17 1977-11-16 Stylus for reproducing information signals recorded on a recording medium
GB47733/77A GB1596663A (en) 1976-11-17 1977-11-16 Stylus for reproducing information signals recorded on a recording medium
GB16226/80A GB1596664A (en) 1976-11-17 1977-11-16 Stylus for reproducing information signals recorded on a recording medium
US06/031,035 US4273967A (en) 1976-11-17 1979-04-18 Stylus for reproducing capacitive videodisc
NL8003297A NL8003297A (en) 1976-11-17 1980-06-05 Stylus for high density video recording medium - has elliptical structure with front edges forming outline of electrode surface with inclined section
FR8012771A FR2453462B1 (en) 1976-11-17 1980-06-09 READING POINT FOR REPRODUCING SIGNALS RECORDED ON A RECORDING MEDIUM
CA355,308A CA1114949A (en) 1976-11-17 1980-07-03 Stylus for reproducing information signals recorded on a recording medium
US06/221,922 US4497052A (en) 1976-11-17 1980-12-30 Stylus for reproducing information signals recorded on a recording medium
NL8105033A NL8105033A (en) 1976-11-17 1981-11-06 Playback needle for signals on groove recording medium - has electrode divided into rectangular and trapezoidal section for contact surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13721676A JPS5362501A (en) 1976-11-17 1976-11-17 Scanning needle

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP5514677A Division JPS5363001A (en) 1977-05-13 1977-05-13 Scanning stylus
JP3204082A Division JPS6027110B2 (en) 1982-03-01 1982-03-01 scanning needle

Publications (2)

Publication Number Publication Date
JPS5362501A true JPS5362501A (en) 1978-06-05
JPS5757771B2 JPS5757771B2 (en) 1982-12-06

Family

ID=15193493

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13721676A Granted JPS5362501A (en) 1976-11-17 1976-11-17 Scanning needle

Country Status (2)

Country Link
JP (1) JPS5362501A (en)
FR (1) FR2453462B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53120418A (en) * 1977-03-25 1978-10-20 Rca Corp Record disc stylus and making method thereof
JPS5843637U (en) * 1981-09-18 1983-03-24 三洋電機株式会社 scanning needle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371961A (en) * 1980-11-21 1983-02-01 Rca Corporation Capacitive information system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49121515A (en) * 1973-03-22 1974-11-20
JPS5017917A (en) * 1973-06-18 1975-02-25
JPS51104813A (en) * 1975-03-13 1976-09-17 Sony Corp PITSUKUATSUPUSOCHI

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1392632A (en) * 1972-10-26 1975-04-30 Emi Ltd Styli
GB1524032A (en) * 1974-11-18 1978-09-06 Rca Corp Video disc stylus
US4331976A (en) * 1976-04-08 1982-05-25 Victor Company Of Japan, Ltd. High density recording system using side-by-side information and servo tracks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49121515A (en) * 1973-03-22 1974-11-20
JPS5017917A (en) * 1973-06-18 1975-02-25
JPS51104813A (en) * 1975-03-13 1976-09-17 Sony Corp PITSUKUATSUPUSOCHI

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53120418A (en) * 1977-03-25 1978-10-20 Rca Corp Record disc stylus and making method thereof
JPS5812654B2 (en) * 1977-03-25 1983-03-09 ア−ルシ−エ− コ−ポレ−ション Record stocking needle
JPS5843637U (en) * 1981-09-18 1983-03-24 三洋電機株式会社 scanning needle

Also Published As

Publication number Publication date
FR2453462A1 (en) 1980-10-31
FR2453462B1 (en) 1985-09-27
JPS5757771B2 (en) 1982-12-06

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