GB255221A - Volume control arrangements for signalling systems - Google Patents

Volume control arrangements for signalling systems

Info

Publication number
GB255221A
GB255221A GB1730825A GB1730825A GB255221A GB 255221 A GB255221 A GB 255221A GB 1730825 A GB1730825 A GB 1730825A GB 1730825 A GB1730825 A GB 1730825A GB 255221 A GB255221 A GB 255221A
Authority
GB
United Kingdom
Prior art keywords
input
signals
resistance
currents
valves
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
Application number
GB1730825A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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
Priority to NL18284D priority Critical patent/NL18284C/xx
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB1730825A priority patent/GB255221A/en
Priority to FR603383D priority patent/FR603383A/fr
Publication of GB255221A publication Critical patent/GB255221A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
GB1730825A 1925-07-06 1925-07-06 Volume control arrangements for signalling systems Expired GB255221A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL18284D NL18284C (enrdf_load_stackoverflow) 1925-07-06
GB1730825A GB255221A (en) 1925-07-06 1925-07-06 Volume control arrangements for signalling systems
FR603383D FR603383A (fr) 1925-07-06 1925-09-14 Perfectionnements aux dispositifs destinés à contrôler l'amplitude des courants transmis dans les systèmes électriques de signalisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1730825A GB255221A (en) 1925-07-06 1925-07-06 Volume control arrangements for signalling systems

Publications (1)

Publication Number Publication Date
GB255221A true GB255221A (en) 1926-07-22

Family

ID=10092891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1730825A Expired GB255221A (en) 1925-07-06 1925-07-06 Volume control arrangements for signalling systems

Country Status (3)

Country Link
FR (1) FR603383A (enrdf_load_stackoverflow)
GB (1) GB255221A (enrdf_load_stackoverflow)
NL (1) NL18284C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR603383A (fr) 1926-04-14
NL18284C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
US2172453A (en) Radio transmitter
US2001622A (en) Method of and means for reducing electrical disturbances
GB393415A (en) Improvements in or relating to receivers for modulated high frequency waves
GB255221A (en) Volume control arrangements for signalling systems
US2043587A (en) Distortionless transmission system
US2252002A (en) Telephone and other electric wave transmission systems
US2538040A (en) Interference reduction circuit for radio pulse receivers
US1737830A (en) Means for and method of volume control of transmission
US2031639A (en) Method of and means for modulation
US2164185A (en) Voice operated repeater
US2073477A (en) Electric wave amplification
GB506791A (en) Improvements in or relating to amplifying systems using negative feedback
US2130485A (en) Diversity radio receiver
US2372101A (en) Feedback circuits
US2141944A (en) Automatic volume control for amplifiers
US2182100A (en) Automatic volume control device for wave transmission systems
US2206080A (en) Transmission control and signaling system
US2468552A (en) Voice operated control circuit for two-way signal transmission systems
US1849189A (en) Gain control apparatus
US1902030A (en) Gain control apparatus
US1737992A (en) Volume-control system
US2505061A (en) Phase inverter circuit
US1837851A (en) Amplifying method and apparatus
US1943478A (en) Transmission level control in telegraph signaling systems
Voglis Design features of advanced scanning sonars based on modulation scanning—Part 1