AT299317B - Frequency division multiplex system for the transmission of telephone and videophone channels - Google Patents

Frequency division multiplex system for the transmission of telephone and videophone channels

Info

Publication number
AT299317B
AT299317B AT1169270A AT1169270A AT299317B AT 299317 B AT299317 B AT 299317B AT 1169270 A AT1169270 A AT 1169270A AT 1169270 A AT1169270 A AT 1169270A AT 299317 B AT299317 B AT 299317B
Authority
AT
Austria
Prior art keywords
videophone
telephone
channels
transmission
frequency division
Prior art date
Application number
AT1169270A
Other languages
German (de)
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
Application granted granted Critical
Publication of AT299317B publication Critical patent/AT299317B/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)
AT1169270A 1970-01-29 1970-12-29 Frequency division multiplex system for the transmission of telephone and videophone channels AT299317B (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
AT299317B true AT299317B (en) 1972-06-12

Family

ID=25758559

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1169270A AT299317B (en) 1970-01-29 1970-12-29 Frequency division multiplex system for the 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
IT992878B (en) * 1972-08-11 1975-09-30 Siemens Ag SYSTEM FOR TRANSMITTING TELEVISION AND TELEPHONE BANDS TOGETHER ON WIDE BAND GLASS FREQUENCY 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
NL151867B (en) 1976-12-15
NL7100956A (en) 1971-08-02
JPS50524B1 (en) 1975-01-09
GB1328002A (en) 1973-08-22
CH524936A (en) 1972-06-30
SE415817B (en) 1980-10-27
FR2077084A5 (en) 1971-10-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee