BR7807530A - Conjunto transdutor telefonico e processo para a sua fabricacao - Google Patents
Conjunto transdutor telefonico e processo para a sua fabricacaoInfo
- Publication number
- BR7807530A BR7807530A BR7807530A BR7807530A BR7807530A BR 7807530 A BR7807530 A BR 7807530A BR 7807530 A BR7807530 A BR 7807530A BR 7807530 A BR7807530 A BR 7807530A BR 7807530 A BR7807530 A BR 7807530A
- Authority
- BR
- Brazil
- Prior art keywords
- manufacturing
- transducer assembly
- telephone transducer
- telephone
- assembly
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/006—Interconnection of transducer parts
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Telephone Set Structure (AREA)
- Brushless Motors (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84394277A | 1977-10-20 | 1977-10-20 | |
| US89005278A | 1978-03-27 | 1978-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR7807530A true BR7807530A (pt) | 1979-07-31 |
Family
ID=27126455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR7807530A BR7807530A (pt) | 1977-10-20 | 1978-11-16 | Conjunto transdutor telefonico e processo para a sua fabricacao |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS582518B2 (xx) |
| AR (1) | AR215527A1 (xx) |
| AU (1) | AU520337B2 (xx) |
| BE (1) | BE871399A (xx) |
| BR (1) | BR7807530A (xx) |
| CA (1) | CA1122694A (xx) |
| ES (1) | ES474377A1 (xx) |
| IT (1) | IT1099746B (xx) |
| MX (1) | MX145282A (xx) |
| NL (1) | NL7810464A (xx) |
| NZ (1) | NZ188681A (xx) |
| PT (1) | PT68664A (xx) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5440839Y2 (xx) * | 1975-06-12 | 1979-11-30 |
-
1978
- 1978-10-11 AU AU40627/78A patent/AU520337B2/en not_active Expired
- 1978-10-16 IT IT28793/78A patent/IT1099746B/it active
- 1978-10-17 PT PT68664A patent/PT68664A/pt unknown
- 1978-10-17 AR AR274113A patent/AR215527A1/es active
- 1978-10-18 NZ NZ188681A patent/NZ188681A/xx unknown
- 1978-10-19 NL NL7810464A patent/NL7810464A/xx not_active Application Discontinuation
- 1978-10-19 CA CA313,798A patent/CA1122694A/en not_active Expired
- 1978-10-20 JP JP53128681A patent/JPS582518B2/ja not_active Expired
- 1978-10-20 BE BE2057364A patent/BE871399A/xx unknown
- 1978-10-20 ES ES474377A patent/ES474377A1/es not_active Expired
- 1978-10-20 MX MX175317A patent/MX145282A/es unknown
- 1978-11-16 BR BR7807530A patent/BR7807530A/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT7828793A0 (it) | 1978-10-16 |
| JPS5470704A (en) | 1979-06-06 |
| NZ188681A (en) | 1983-07-15 |
| AR215527A1 (es) | 1979-10-15 |
| ES474377A1 (es) | 1979-04-16 |
| JPS582518B2 (ja) | 1983-01-17 |
| BE871399A (nl) | 1979-04-20 |
| CA1122694A (en) | 1982-04-27 |
| PT68664A (en) | 1978-11-01 |
| AU4062778A (en) | 1980-04-17 |
| MX145282A (es) | 1982-01-20 |
| NL7810464A (nl) | 1979-04-24 |
| AU520337B2 (en) | 1982-01-28 |
| IT1099746B (it) | 1985-09-28 |
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