GB834572A - Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing apparatus - Google Patents
Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing apparatusInfo
- Publication number
- GB834572A GB834572A GB20347/56A GB2034756A GB834572A GB 834572 A GB834572 A GB 834572A GB 20347/56 A GB20347/56 A GB 20347/56A GB 2034756 A GB2034756 A GB 2034756A GB 834572 A GB834572 A GB 834572A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transducers
- crystals
- lateral movement
- movement
- transducer
- 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
- 239000013078 crystal Substances 0.000 abstract 3
- 229920003023 plastic Polymers 0.000 abstract 2
- 239000004033 plastic Substances 0.000 abstract 2
- 241001422033 Thestylus Species 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R17/08—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)
- Endoscopes (AREA)
- Toys (AREA)
- Recording Measured Values (AREA)
Abstract
834,572. Binaural systems. TELEFUNKEN G.m.b.H. July 2, 1956 [July 2, 1955], No. 20347/56. Class 40 (4). A pick-up or recorder for a binaural record comprises a single stylus 6 which is coupled to one transducer 1 for hill-and-dale movement and to another transducer 2 for lateral movement, the mechanical connection between the stylus and the transducers preventing unwanted coupling between the transducers and at least part of the mechanical connection being made of a plastic such as polyvinylchloride. In Fig. 1 the transducers are torsional piezo-electric crystals and a plastic member 3 transmits vertical movement while being flexible to lateral movement. The member 3 passes through a leaf-spring 4 which transmits lateral movement. The member 3 may be shortened to make the transducer assembly more compact. The connecting members 7 and 8, Fig. 2, may be moulded in one with a rigid body 9. The crystals 1, 2 are embraced by extensions 11, 12 of the members 7, 8, stops 13, 14 abutting against the casing to confine the crystals to torsional movements. Specifications 394,325 and 688,804 are referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE834572X | 1955-07-02 | ||
| DET13358A DE1059680B (en) | 1955-07-02 | 1957-03-14 | Pickup or cutting box for the simultaneous playback or recording of two scripts with mutually perpendicular directions of oscillation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB834572A true GB834572A (en) | 1960-05-11 |
Family
ID=25949742
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20347/56A Expired GB834572A (en) | 1955-07-02 | 1956-07-02 | Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing apparatus |
| GB8176/58A Expired GB888468A (en) | 1955-07-02 | 1958-03-14 | Improvements in or relating to electro-mechanical transducers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8176/58A Expired GB888468A (en) | 1955-07-02 | 1958-03-14 | Improvements in or relating to electro-mechanical transducers |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1059680B (en) |
| GB (2) | GB834572A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3183311A (en) * | 1959-02-24 | 1965-05-11 | Electro Voice | Piezoelectric phonograph pickup with compliant yoke |
| US3218399A (en) * | 1960-04-22 | 1965-11-16 | Ronette Piezo Electrische Ind | Stereophonic pick-up |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE828447C (en) * | 1949-09-17 | 1952-01-17 | Siemens & Halske A G | Electric pickup |
-
1956
- 1956-07-02 GB GB20347/56A patent/GB834572A/en not_active Expired
-
1957
- 1957-03-14 DE DET13358A patent/DE1059680B/en active Pending
-
1958
- 1958-03-14 GB GB8176/58A patent/GB888468A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3183311A (en) * | 1959-02-24 | 1965-05-11 | Electro Voice | Piezoelectric phonograph pickup with compliant yoke |
| US3218399A (en) * | 1960-04-22 | 1965-11-16 | Ronette Piezo Electrische Ind | Stereophonic pick-up |
Also Published As
| Publication number | Publication date |
|---|---|
| GB888468A (en) | 1962-01-31 |
| DE1059680B (en) | 1959-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2429475A1 (en) | SEMICONDUCTOR APPARATUS FOR REPRODUCING ACOUSTIC SIGNALS | |
| US2775460A (en) | Binaural recording system | |
| GB688804A (en) | Improvements in or relating to transducers for use in sound recording and reproducing apparatus | |
| GB834572A (en) | Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing apparatus | |
| GB823911A (en) | Phonograph reproducer | |
| GB789367A (en) | Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing systems | |
| GB919488A (en) | Improvements in or relating to pick-ups | |
| US3067296A (en) | Piezoelectric stereo cartridge | |
| GB863618A (en) | Improvements in or relating to electromechanical transducers | |
| GB897323A (en) | Improvements in or relating to transducer arrangements for use in sound recording and reproducing | |
| GB847758A (en) | Improvements in or relating to sound recording or reproducing pick-up heads | |
| GB830081A (en) | Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing systems | |
| GB678705A (en) | Improvements in phonographs | |
| GB850043A (en) | Improvements in or relating to gramophone pick-ups | |
| GB856596A (en) | Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing systems | |
| US1787911A (en) | Ing machine cosip any | |
| GB859606A (en) | Mechanical-electrical signal converter | |
| FR2234112A1 (en) | High frequency stylus for video recording system - incorporating conductive epoxy cements and high damping membranes | |
| GB927149A (en) | Improvements in or relating to electro mechanical transducers for recording or playing-back grooved record tracks | |
| GB952070A (en) | Improvements in or relating to mounting means for stylus arms for use in pick-up heads for gramophone record playing apparatus | |
| GB308747A (en) | Improvements in talking machines | |
| GB765621A (en) | Improvements in or relating to gramophone pick-ups comprising at least two needles which are externally damped | |
| GB810971A (en) | Improvements in and relating to electro-mechanical transducers | |
| GB913721A (en) | Improvements in or relating to electro-mechanical transducers | |
| GB863889A (en) | Piezoelectric phonograph pickup |