FR2112432B1 - - Google Patents
Info
- Publication number
- FR2112432B1 FR2112432B1 FR7129955A FR7129955A FR2112432B1 FR 2112432 B1 FR2112432 B1 FR 2112432B1 FR 7129955 A FR7129955 A FR 7129955A FR 7129955 A FR7129955 A FR 7129955A FR 2112432 B1 FR2112432 B1 FR 2112432B1
- Authority
- FR
- France
- 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.)
- Expired
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
- H04R19/00—Electrostatic transducers
- H04R19/06—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R19/10—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)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8143070U JPS499044Y1 (en) | 1970-08-17 | 1970-08-17 | |
JP9642270A JPS4933641B1 (en) | 1970-11-04 | 1970-11-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2112432A1 FR2112432A1 (en) | 1972-06-16 |
FR2112432B1 true FR2112432B1 (en) | 1974-10-11 |
Family
ID=26422457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7129955A Expired FR2112432B1 (en) | 1970-08-17 | 1971-08-17 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3731009A (en) |
DE (1) | DE2141251B2 (en) |
FR (1) | FR2112432B1 (en) |
GB (1) | GB1314506A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2364767A1 (en) * | 1972-12-28 | 1974-07-11 | Micro Labo Co | ELECTROMAGNETIC CARTRIDGE INSERT |
NL7313455A (en) * | 1973-10-01 | 1975-04-03 | Philips Nv | MICROPHONE WITH ELECTROSTATIC CAPSULE. |
US4179589A (en) * | 1976-07-13 | 1979-12-18 | Kenkichi Tsukamoto | Phono cartridge |
US7095626B2 (en) * | 2003-05-29 | 2006-08-22 | Interplex Nas Inc. | Openable one-piece electrical RF shield and method of manufacturing the same |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1804364A (en) * | 1930-07-12 | 1931-05-05 | Pacent Electric Company Inc | Pickup |
US2033479A (en) * | 1931-08-21 | 1936-03-10 | Edmund G Murphy | Electric phonograph pickup |
US2864897A (en) * | 1958-02-17 | 1958-12-16 | Hoffman Electronics Corp | Universal phonograph pickup head or the like |
US3005060A (en) * | 1958-03-03 | 1961-10-17 | Weathers Paul | Signal transducing systems |
US3649775A (en) * | 1969-08-14 | 1972-03-14 | Sony Corp | Electro-static phonograph pickup |
-
1971
- 1971-08-17 GB GB3850571A patent/GB1314506A/en not_active Expired
- 1971-08-17 FR FR7129955A patent/FR2112432B1/fr not_active Expired
- 1971-08-17 US US00172591A patent/US3731009A/en not_active Expired - Lifetime
- 1971-08-17 DE DE2141251A patent/DE2141251B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
US3731009A (en) | 1973-05-01 |
GB1314506A (en) | 1973-04-26 |
DE2141251A1 (en) | 1972-02-24 |
DE2141251B2 (en) | 1975-11-20 |
FR2112432A1 (en) | 1972-06-16 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |