CH546528A - ELECTROMECHANICAL CARTRIDGE. - Google Patents

ELECTROMECHANICAL CARTRIDGE.

Info

Publication number: CH546528A
Authority: CH; Switzerland
Prior art keywords: electromechanical; cartridge; electromechanical cartridge
Prior art date: 1972-08-18

Application number

CH1767572A

Other languages

German (de)

Original Assignee

Fonofilm Ind A S

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.)

1972-08-18

Filing date

1972-12-05

Publication date

1974-02-28

1972-12-05 Application filed by Fonofilm Ind A S filed Critical Fonofilm Ind A S

1974-02-28 Publication of CH546528A publication Critical patent/CH546528A/en

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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R11/12—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Knitting Machines (AREA)
Reciprocating, Oscillating Or Vibrating Motors (AREA)

CH1767572A 1972-08-18 1972-12-05 ELECTROMECHANICAL CARTRIDGE. CH546528A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US281810A US3878342A (en)	1972-08-18	1972-08-18	Replaceable stylus for stereophonic phonograph pickup

Publications (1)

Publication Number	Publication Date
CH546528A true CH546528A (en)	1974-02-28

Family

ID=23078883

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH1767572A CH546528A (en)	1972-08-18	1972-12-05	ELECTROMECHANICAL CARTRIDGE.

Country Status (6)

Country	Link
US (1)	US3878342A (en)
JP (2)	JPS4960504A (en)
CH (1)	CH546528A (en)
DE (2)	DE7242940U (en)
GB (1)	GB1384968A (en)
HK (1)	HK74676A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5832398Y2 (en) *	1976-04-30	1983-07-18	パイオニア株式会社	Electromagnetic cartridge
JPS538102A (en) *	1976-07-12	1978-01-25	Torio Kk	Pickup cartridge
US4272652A (en) *	1978-05-25	1981-06-09	Nippon Atsudenki K.K.	Moving coil type stereophonic pickup cartridge
FR2502882A1 (en) *	1981-03-26	1982-10-01	Mimran Guy	Record disc reproduction stylus - has needle point in longitudinal axis of stylus supported at centre by suspension in annular magnet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3294405A (en) *	1963-12-11	1966-12-27	Audio Dynamics Corp	Phonograph pick-up
US3538266A (en) *	1967-10-06	1970-11-03	Micro Seiki Co Ltd	Magnetic pickup with inducing magnet axially aligned with the armature
DK124049B (en) *	1969-03-25	1972-09-04	Fonofilm Ind As	Magnetic pick-up.
US3694586A (en) *	1969-11-03	1972-09-26	Joseph F Grado	Toroidal armature stereophonic pickup
JPS4937527B1 (en) *	1971-02-23	1974-10-09

1972
- 1972-08-18 US US281810A patent/US3878342A/en not_active Expired - Lifetime
- 1972-11-22 DE DE19727242940U patent/DE7242940U/en not_active Expired
- 1972-11-22 DE DE2257284A patent/DE2257284A1/en active Pending
- 1972-12-05 CH CH1767572A patent/CH546528A/en not_active IP Right Cessation
1973
- 1973-06-22 GB GB2991973A patent/GB1384968A/en not_active Expired
- 1973-08-17 JP JP48091818A patent/JPS4960504A/ja active Pending
1976
- 1976-12-02 HK HK746/76*UA patent/HK74676A/en unknown
1980
- 1980-08-18 JP JP11331180A patent/JPS5635595A/en active Pending

Also Published As

Publication number	Publication date
JPS5635595A (en)	1981-04-08
DE7242940U (en)	1973-04-05
DE2257284A1 (en)	1974-03-07
HK74676A (en)	1976-12-10
JPS4960504A (en)	1974-06-12
GB1384968A (en)	1975-02-26
US3878342A (en)	1975-04-15

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Legal Events

Date	Code	Title	Description
1986-11-28	PL	Patent ceased