FR708641A - Method and device for wireless multiple telegraphy - Google Patents

Method and device for wireless multiple telegraphy

Info

Publication number
FR708641A
FR708641A FR708641DA FR708641A FR 708641 A FR708641 A FR 708641A FR 708641D A FR708641D A FR 708641DA FR 708641 A FR708641 A FR 708641A
Authority
FR
France
Prior art keywords
wireless multiple
telegraphy
multiple telegraphy
wireless
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
Other languages
French (fr)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR708641A publication Critical patent/FR708641A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J9/00—Multiplex systems in which each channel is represented by a different type of modulation of the carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Near-Field Transmission Systems (AREA)
  • Optical Communication System (AREA)
  • Selective Calling Equipment (AREA)
  • Facsimiles In General (AREA)
FR708641D 1930-01-03 1930-12-31 Method and device for wireless multiple telegraphy Expired FR708641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE540850T 1930-01-03

Publications (1)

Publication Number Publication Date
FR708641A true FR708641A (en) 1931-07-27

Family

ID=6559068

Family Applications (1)

Application Number Title Priority Date Filing Date
FR708641D Expired FR708641A (en) 1930-01-03 1930-12-31 Method and device for wireless multiple telegraphy

Country Status (5)

Country Link
US (1) US1886263A (en)
AT (1) AT127989B (en)
DE (2) DE540850C (en)
FR (1) FR708641A (en)
GB (2) GB359812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538829A (en) * 1945-04-21 1951-01-23 Rca Corp Multiplex telegraph system using frequency discrimination

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464837A (en) * 1946-05-02 1949-03-22 Florian J Werthmann Radio teletype system
US2993958A (en) * 1956-10-17 1961-07-25 American Telephone & Telegraph Radiant energy receiving system
DE1066631B (en) * 1956-11-08
FR2506544A1 (en) * 1981-05-19 1982-11-26 Jeumont Schneider METHOD FOR DETERMINING THE STATE OF AN ALTERNATIVE SIGNAL MODULATED IN ALL OR NOTHING IN A DISTURBED ENVIRONMENT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538829A (en) * 1945-04-21 1951-01-23 Rca Corp Multiplex telegraph system using frequency discrimination

Also Published As

Publication number Publication date
DE528682C (en) 1932-11-15
AT127989B (en) 1932-04-25
GB359812A (en) 1931-10-29
DE540850C (en) 1934-01-05
GB355164A (en) 1931-08-20
US1886263A (en) 1932-11-01

Similar Documents

Publication Publication Date Title
FR708641A (en) Method and device for wireless multiple telegraphy
FR771090A (en) Radio communication method and apparatus
FR715035A (en) Wireless telegraphy receiving method and device
FR820277A (en) Communication method and device for railway vehicles
FR675362A (en) Device for high frequency communications in duplex traffic
FR771397A (en) Carrier device for parachutes
FR711544A (en) Advanced device for the penis
FR681290A (en) Method and device for the transmission of news by telegraph
FR628518A (en) Frequency change method for radio signaling and device for carrying out this method
FR717191A (en) Method and device for wireless transmission of signals
FR36385E (en) Automatic receiving apparatus for wireless telephony and telegraphy
FR701592A (en) Method and device for plowing
FR652990A (en) Method and device for posting without postponements
FR639571A (en) Automatic receiving apparatus for wireless telephony and telegraphy
FR641224A (en) Detector device for telegraphy and wireless telephony
FR717245A (en) Control device for wireless telegraphy apparatus
FR726208A (en) Receiving device for television
FR635041A (en) Method and device for radio transmission
FR720686A (en) Transmission device
FR738774A (en) Method for wireless transmission of news
FR716791A (en) Transmitter for teleprinters and similar devices
FR714665A (en) Frequency selector device
FR590468A (en) Advanced device for wireless telegraphy
FR683734A (en) Intensity adjustment device for wireless receivers
FR723536A (en) Pumping method and production device