BE543553A - - Google Patents
Info
- Publication number
- BE543553A BE543553A BE543553DA BE543553A BE 543553 A BE543553 A BE 543553A BE 543553D A BE543553D A BE 543553DA BE 543553 A BE543553 A BE 543553A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L5/00—Automatic control of voltage, current, or power
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/46—Volume control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
- H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F99/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Electrophonic Musical Instruments (AREA)
- Toys (AREA)
- Light Receiving Elements (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Control Of Amplification And Gain Control (AREA)
- Optical Recording Or Reproduction (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL337573X | 1954-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE543553A true BE543553A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=19784593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE543553D BE543553A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1954-12-13 |
Country Status (7)
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB697851A (en) * | 1950-06-06 | 1953-09-30 | British Thomson Houston Co Ltd | Improvements relating to the utilisation of the photo-electric effect in semi-conductors |
-
0
- NL NL193174D patent/NL193174A/xx unknown
- BE BE543553D patent/BE543553A/xx unknown
- NL NL107295D patent/NL107295C/xx active
-
1955
- 1955-12-09 DE DEN11575A patent/DE1046100B/de active Pending
- 1955-12-09 GB GB35401/55A patent/GB828688A/en not_active Expired
- 1955-12-10 JP JP3210055A patent/JPS335064B1/ja active Pending
- 1955-12-12 CH CH337573D patent/CH337573A/de unknown
- 1955-12-12 FR FR1144663D patent/FR1144663A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH337573A (de) | 1959-04-15 |
| FR1144663A (fr) | 1957-10-16 |
| DE1046100B (de) | 1958-12-11 |
| NL107295C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| NL193174A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| GB828688A (en) | 1960-02-24 |
| JPS335064B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1968-07-08 |