CH524936A - Method for frequency division multiplex transmission of telephone and videophone channels - Google Patents

Method for frequency division multiplex transmission of telephone and videophone channels

Info

Publication number
CH524936A
CH524936A CH1901170A CH1901170A CH524936A CH 524936 A CH524936 A CH 524936A CH 1901170 A CH1901170 A CH 1901170A CH 1901170 A CH1901170 A CH 1901170A CH 524936 A CH524936 A CH 524936A
Authority
CH
Switzerland
Prior art keywords
videophone
telephone
channels
frequency division
division multiplex
Prior art date
Application number
CH1901170A
Other languages
German (de)
Inventor
Kuegler Eberhard
Original Assignee
Siemens Ag
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 claimed from DE19702003980 external-priority patent/DE2003980C/en
Priority claimed from DE19702004011 external-priority patent/DE2004011B2/en
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of CH524936A publication Critical patent/CH524936A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Time-Division Multiplex Systems (AREA)
CH1901170A 1970-01-29 1970-12-22 Method for frequency division multiplex transmission of telephone and videophone channels CH524936A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702003980 DE2003980C (en) 1970-01-29 Frequency division multiplex system for the transmission of telephone and videophone channels
DE19702004011 DE2004011B2 (en) 1970-01-29 1970-01-29 FREQUENCY MULTIPLEX SYSTEM FOR TRANSMISSION OF TELEPHONE AND VIDEO-PHONE CHANNELS

Publications (1)

Publication Number Publication Date
CH524936A true CH524936A (en) 1972-06-30

Family

ID=25758559

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1901170A CH524936A (en) 1970-01-29 1970-12-22 Method for frequency division multiplex transmission of telephone and videophone channels

Country Status (7)

Country Link
JP (1) JPS50524B1 (en)
AT (1) AT299317B (en)
CH (1) CH524936A (en)
FR (1) FR2077084A5 (en)
GB (1) GB1328002A (en)
NL (1) NL151867B (en)
SE (1) SE415817B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1446351A (en) * 1972-08-11 1976-08-18 Siemens Ag Telecommunications transmission systems
JPS5326528U (en) * 1976-08-14 1978-03-07

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048952B (en) * 1956-08-27 1959-01-22 Felten & Guilleaume Gmbh 12 MHz carrier frequency system built from an already existing 4 MHz carrier frequency system (V 960)
DE1025457B (en) * 1956-08-29 1958-03-06 Felten & Guilleaume Gmbh 12 MHz carrier frequency system built from an already existing 4 MHz system

Also Published As

Publication number Publication date
JPS50524B1 (en) 1975-01-09
FR2077084A5 (en) 1971-10-15
NL151867B (en) 1976-12-15
SE415817B (en) 1980-10-27
NL7100956A (en) 1971-08-02
AT299317B (en) 1972-06-12
GB1328002A (en) 1973-08-22

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Legal Events

Date Code Title Description
PL Patent ceased