GB368656A - Improvements in or relating to distribution systems for broadcasting and the like - Google Patents
Improvements in or relating to distribution systems for broadcasting and the likeInfo
- Publication number
- GB368656A GB368656A GB23361/31A GB2336131A GB368656A GB 368656 A GB368656 A GB 368656A GB 23361/31 A GB23361/31 A GB 23361/31A GB 2336131 A GB2336131 A GB 2336131A GB 368656 A GB368656 A GB 368656A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potentiometers
- corrected
- choke
- conductors
- circuits
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/82—Wired systems using signals not modulated onto a carrier
- H04H20/83—Wired systems using signals not modulated onto a carrier not sharing the network with any other service
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings
- F16D27/04—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces
- F16D27/06—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces with friction surfaces arranged within the flux
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D2027/002—Electric or electronic circuits relating to actuation of electromagnetic clutches
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
368,656. Distributing music &c. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 19, 1931, No. 23361. Convention date, Aug. 19, 1930. [Class 40 (iv).] A phantommed quad is used for distributing three programmes from wireless receiving sets, talking machines, or microphones, arrangements being provided for accurately balancing the various circuits. As shown the programmes are sent over the side circuits 4, 5 and 6, 7 by transformers 1, 2 and over the phantom by transformer 3. The phantom tap is taken from the mid-point 15 of a low impedance choke 14 connected between the halves 8, 9 of a higher impedance choke shunted across the conductors of a side circuit, and any unbalance is corrected by adjustable resistances 18, 19 connected to taps on choke 14. Differences in resistance of individual conductors are corrected by potentiometers 22, 23, and leakance between the conductors is made uniform by interconnected potentiometers 31, 32. Variations in leakance to ground are corrected by potentiometers 20, 21. Capacity unbalances are corrected by capacities 26, 27 connected between ground and potentiometers 24, 25, and by a capacity 30 connected between potentiometers 28, 29. Switches 33 are provided to enable the various adjustments to be made separately. The distant ends of the side-circuits are terminated by tapped chokes, and a loud-speaker may be connected across either choke or across the mid-points of the two chokes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL368656X | 1930-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB368656A true GB368656A (en) | 1932-03-10 |
Family
ID=19785511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23361/31A Expired GB368656A (en) | 1930-08-19 | 1931-08-19 | Improvements in or relating to distribution systems for broadcasting and the like |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR721788A (en) |
| GB (1) | GB368656A (en) |
| NL (1) | NL53121C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493948A (en) * | 1983-06-27 | 1985-01-15 | The Inteleplex Corporation | Transparent secondary information transmission system for an information transmission system |
| US4528422A (en) * | 1983-06-27 | 1985-07-09 | The Inteleplex Corporation | Transparent secondary information transmission system for an information transmission system |
-
0
- NL NL53121D patent/NL53121C/xx active
-
1931
- 1931-08-19 GB GB23361/31A patent/GB368656A/en not_active Expired
- 1931-08-19 FR FR721788D patent/FR721788A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493948A (en) * | 1983-06-27 | 1985-01-15 | The Inteleplex Corporation | Transparent secondary information transmission system for an information transmission system |
| US4528422A (en) * | 1983-06-27 | 1985-07-09 | The Inteleplex Corporation | Transparent secondary information transmission system for an information transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| NL53121C (en) | |
| FR721788A (en) | 1932-03-08 |
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