JPS646632Y2 - - Google Patents
Info
- Publication number
- JPS646632Y2 JPS646632Y2 JP1981037744U JP3774481U JPS646632Y2 JP S646632 Y2 JPS646632 Y2 JP S646632Y2 JP 1981037744 U JP1981037744 U JP 1981037744U JP 3774481 U JP3774481 U JP 3774481U JP S646632 Y2 JPS646632 Y2 JP S646632Y2
- Authority
- JP
- Japan
- Prior art keywords
- pole pieces
- pick
- cartridge
- coil
- coils
- 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.)
- Expired
Links
- 239000000696 magnetic material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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)
- Moving Of Heads (AREA)
- Electrophonic Musical Instruments (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981037744U JPS646632Y2 (US06262066-20010717-C00315.png) | 1981-03-18 | 1981-03-18 | |
| US06/351,427 US4493071A (en) | 1981-03-18 | 1982-02-23 | Pickup cartridge |
| CA000397154A CA1173757A (en) | 1981-03-18 | 1982-02-26 | Pickup cartridge |
| GB8207556A GB2096864B (en) | 1981-03-18 | 1982-03-16 | Pick-up cartridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981037744U JPS646632Y2 (US06262066-20010717-C00315.png) | 1981-03-18 | 1981-03-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57151099U JPS57151099U (US06262066-20010717-C00315.png) | 1982-09-22 |
| JPS646632Y2 true JPS646632Y2 (US06262066-20010717-C00315.png) | 1989-02-21 |
Family
ID=12505983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981037744U Expired JPS646632Y2 (US06262066-20010717-C00315.png) | 1981-03-18 | 1981-03-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4493071A (US06262066-20010717-C00315.png) |
| JP (1) | JPS646632Y2 (US06262066-20010717-C00315.png) |
| CA (1) | CA1173757A (US06262066-20010717-C00315.png) |
| GB (1) | GB2096864B (US06262066-20010717-C00315.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4253559B2 (ja) * | 2003-10-21 | 2009-04-15 | 株式会社日立製作所 | 光ピックアップ装置及び光ディスク装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3146319A (en) * | 1960-08-24 | 1964-08-25 | Pickering & Co Inc | Magnetic phonograph pickup with compensating pole piece arrangement |
| US3646279A (en) * | 1970-12-07 | 1972-02-29 | Pickering & Co Inc | Induced magnetic moving iron stereophonic phonograph pickup with replaceable stylus assembly and one common pole piece |
| US4103116A (en) * | 1974-12-05 | 1978-07-25 | Nippon Gakki Seizo Kabushiki Kaisha | Pickup cartridge with moving magnet armature |
-
1981
- 1981-03-18 JP JP1981037744U patent/JPS646632Y2/ja not_active Expired
-
1982
- 1982-02-23 US US06/351,427 patent/US4493071A/en not_active Expired - Lifetime
- 1982-02-26 CA CA000397154A patent/CA1173757A/en not_active Expired
- 1982-03-16 GB GB8207556A patent/GB2096864B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4493071A (en) | 1985-01-08 |
| GB2096864A (en) | 1982-10-20 |
| JPS57151099U (US06262066-20010717-C00315.png) | 1982-09-22 |
| GB2096864B (en) | 1984-09-26 |
| CA1173757A (en) | 1984-09-04 |
