GB544268A - Facsimile signal inverter - Google Patents

Facsimile signal inverter

Info

Publication number
GB544268A
GB544268A GB1632/41A GB163241A GB544268A GB 544268 A GB544268 A GB 544268A GB 1632/41 A GB1632/41 A GB 1632/41A GB 163241 A GB163241 A GB 163241A GB 544268 A GB544268 A GB 544268A
Authority
GB
United Kingdom
Prior art keywords
amplifier
modulated
full
carrier current
transformer
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
GB1632/41A
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.)
Creed and Co Ltd
Original Assignee
Creed and Co Ltd
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 Creed and Co Ltd filed Critical Creed and Co Ltd
Publication of GB544268A publication Critical patent/GB544268A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00095—Systems or arrangements for the transmission of the picture signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimiles In General (AREA)
GB1632/41A 1940-02-16 1941-02-07 Facsimile signal inverter Expired GB544268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US319251A US2278692A (en) 1940-02-16 1940-02-16 Facsimile signal inverter

Publications (1)

Publication Number Publication Date
GB544268A true GB544268A (en) 1942-04-03

Family

ID=23241465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1632/41A Expired GB544268A (en) 1940-02-16 1941-02-07 Facsimile signal inverter

Country Status (3)

Country Link
US (1) US2278692A (enrdf_load_stackoverflow)
BE (1) BE442948A (enrdf_load_stackoverflow)
GB (1) GB544268A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532566A (en) * 1945-10-26 1950-12-05 Millman Jacob Photoelectric gate control for pulse-echo systems
US2729699A (en) * 1951-01-18 1956-01-03 Faximile Inc Facsimile system wherein the recording is a modification of the copy
US2657258A (en) * 1951-01-18 1953-10-27 Faximile Inc Facsimile system wherein the recording is a modification of the copy

Also Published As

Publication number Publication date
BE442948A (enrdf_load_stackoverflow)
US2278692A (en) 1942-04-07

Similar Documents

Publication Publication Date Title
US2057613A (en) Diversity factor receiving system
US3626417A (en) Hybrid frequency shift-amplitude modulated tone system
US2397830A (en) Harmonic control system
US2070418A (en) Multiplex cable code telegraphy with diversity reception
US2291369A (en) Polar carrier telegraph system
US2578714A (en) Sound and facsimile multiplex system
US3470472A (en) Transceiver using common compression amplifier for transmission and reception
GB540185A (en) System of transmission of electrical waves
GB544268A (en) Facsimile signal inverter
GB1011706A (en) Improvements in colour television transmitters
US4030034A (en) Overdrive protection circuit for power line carrier systems and the like
US2276863A (en) Signaling by modulated waves
US3772598A (en) Transmission system for the transmission of pulses
US2389919A (en) Augmented automatic gain control
US2186895A (en) Telegraph system
US2279242A (en) Facsimile signal inverter
GB413647A (en) Improvements in or relating to carrier wave transmission systems
GB388213A (en) Improvements in or relating to modulated carrier wave signal transmitting and receiving systems
US2851685A (en) Duplex radio communication
US2535611A (en) Frequency modulated picture receiver
US2446565A (en) Radio receiver noise reducing circuit
US2194935A (en) Radio volume control
US2961615A (en) High-level modulated signal amplifier system
US2806136A (en) Controlled modulation circuit
US2233769A (en) Low frequency modulation expander