BE710815A - - Google Patents
Info
- Publication number
- BE710815A BE710815A BE710815DA BE710815A BE 710815 A BE710815 A BE 710815A BE 710815D A BE710815D A BE 710815DA BE 710815 A BE710815 A BE 710815A
- Authority
- BE
- Belgium
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
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/16—Mounting or connecting stylus to transducer with or without damping means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
- H04R21/04—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Vibration Prevention Devices (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61627667A | 1967-02-15 | 1967-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE710815A true BE710815A (US06818201-20041116-C00086.png) | 1968-06-17 |
Family
ID=24468740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE710815D BE710815A (US06818201-20041116-C00086.png) | 1967-02-15 | 1968-02-15 |
Country Status (7)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3836794A (en) * | 1969-08-01 | 1974-09-17 | Denki Onkyo Co Ltd | Piezoelectric transformers |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2519185A (en) * | 1947-03-21 | 1950-08-15 | Brush Dev Co | Phonograph pickup |
| US2594948A (en) * | 1947-10-30 | 1952-04-29 | Brush Dev Co | Electromechanical transducer unit |
| US2879413A (en) * | 1956-08-21 | 1959-03-24 | Sonotone Corp | Phonograph pickups |
| US3377439A (en) * | 1958-04-03 | 1968-04-09 | Erie Technological Prod Inc | Binaural piezoelectric pickup |
-
1967
- 1967-02-15 US US616276A patent/US3475565A/en not_active Expired - Lifetime
-
1968
- 1968-02-02 GB GB5343/68A patent/GB1217912A/en not_active Expired
- 1968-02-08 NL NL6801815A patent/NL6801815A/xx unknown
- 1968-02-14 DE DE19681622074 patent/DE1622074A1/de active Pending
- 1968-02-14 CH CH218468A patent/CH486182A/de not_active IP Right Cessation
- 1968-02-14 FR FR1555073D patent/FR1555073A/fr not_active Expired
- 1968-02-15 BE BE710815D patent/BE710815A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1217912A (en) | 1971-01-06 |
| NL6801815A (US06818201-20041116-C00086.png) | 1968-08-16 |
| US3475565A (en) | 1969-10-28 |
| FR1555073A (US06818201-20041116-C00086.png) | 1969-01-24 |
| CH486182A (de) | 1970-02-15 |
| DE1622074A1 (de) | 1970-10-29 |
