FR733746A - Dispositif destiné, plus particulièrement, au réglage de l'intensité sonore dans les systèmes de transmission à basse fréquence
- Google Patents
Dispositif destiné, plus particulièrement, au réglage de l'intensité sonore dans les systèmes de transmission à basse fréquence
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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Application grantedgrantedCritical
Publication of FR733746ApublicationCriticalpatent/FR733746A/fr
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
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03G—CONTROL OF AMPLIFICATION
H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Circuit For Audible Band Transducer
(AREA)
FR733746D1931-06-241932-02-17Dispositif destiné, plus particulièrement, au réglage de l'intensité sonore dans les systèmes de transmission à basse fréquence
ExpiredFR733746A
(fr)
Dispositif pour empêcher l'accumulation de poussière et d'impuretés dans les coins de chambres, salles, etc. et outil utilisé pour fixer ledit dispositif