FR2272529A1 - - Google Patents
Info
- Publication number
- FR2272529A1 FR2272529A1 FR7516525A FR7516525A FR2272529A1 FR 2272529 A1 FR2272529 A1 FR 2272529A1 FR 7516525 A FR7516525 A FR 7516525A FR 7516525 A FR7516525 A FR 7516525A FR 2272529 A1 FR2272529 A1 FR 2272529A1
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
- H03F3/3069—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output
- H03F3/3071—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output with asymmetrical driving of the end stage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2253174A GB1512783A (en) | 1974-05-21 | 1974-05-21 | Road vehicle audio system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2272529A1 true FR2272529A1 (enExample) | 1975-12-19 |
| FR2272529B1 FR2272529B1 (enExample) | 1978-06-09 |
Family
ID=10180897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7516525A Expired FR2272529B1 (enExample) | 1974-05-21 | 1975-05-20 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR2272529B1 (enExample) |
| GB (1) | GB1512783A (enExample) |
| IT (1) | IT1035775B (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354067A (en) | 1978-05-17 | 1982-10-12 | Bodysonic Kabushiki Kaisha | Audio-band electromechanical vibration converter |
| US4495638A (en) * | 1978-05-17 | 1985-01-22 | Body Sonic Kabushiki Kaisha | Audio-band electro-mechanical vibration converter |
| AT379275B (de) * | 1982-04-20 | 1985-12-10 | Neutrik Ag | Stereophone wiedergabeanlage in fahrgastraeumen von kraftfahrzeugen |
| JP3324525B2 (ja) * | 1998-10-01 | 2002-09-17 | 株式会社村田製作所 | ３ｄウーハ駆動回路 |
-
1974
- 1974-05-21 GB GB2253174A patent/GB1512783A/en not_active Expired
-
1975
- 1975-05-19 IT IT4965475A patent/IT1035775B/it active
- 1975-05-20 FR FR7516525A patent/FR2272529B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2272529B1 (enExample) | 1978-06-09 |
| IT1035775B (it) | 1979-10-20 |
| GB1512783A (en) | 1978-06-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |