GB1328002A - Frequency multiplex telecommunications systems - Google Patents

Frequency multiplex telecommunications systems

Info

Publication number
GB1328002A
GB1328002A GB2028471A GB2028471A GB1328002A GB 1328002 A GB1328002 A GB 1328002A GB 2028471 A GB2028471 A GB 2028471A GB 2028471 A GB2028471 A GB 2028471A GB 1328002 A GB1328002 A GB 1328002A
Authority
GB
United Kingdom
Prior art keywords
khz
transmission
telecommunications systems
videophone
frequency
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
GB2028471A
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.)
Siemens AG
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/de
Priority claimed from DE19702004011 external-priority patent/DE2004011B2/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1328002A publication Critical patent/GB1328002A/en
Expired legal-status Critical Current

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)
GB2028471A 1970-01-29 1971-04-19 Frequency multiplex telecommunications systems Expired GB1328002A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702003980 DE2003980C (de) 1970-01-29 Frequenzmultiplexsystem zur Übertragung von Fernsprech- und Videophonkanälen
DE19702004011 DE2004011B2 (de) 1970-01-29 1970-01-29 Frequenzmultiplexsystem zur uebertragung von fernsprech und videophonkanaelen

Publications (1)

Publication Number Publication Date
GB1328002A true GB1328002A (en) 1973-08-22

Family

ID=25758559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2028471A Expired GB1328002A (en) 1970-01-29 1971-04-19 Frequency multiplex telecommunications systems

Country Status (7)

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

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 (xx) * 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 (de) * 1956-08-27 1959-01-22 Felten & Guilleaume Gmbh Aus einem bereits bestehenden 4-MHz-Traegerfrequenzsystem (V 960) aufgebautes 12-MHz-Traegerfrequenzsystem
DE1025457B (de) * 1956-08-29 1958-03-06 Felten & Guilleaume Gmbh Aus einem bereits bestehenden 4-MHz-System aufgebautes 12-MHz-Traegerfrequenzsystem

Also Published As

Publication number Publication date
SE415817B (sv) 1980-10-27
CH524936A (de) 1972-06-30
AT299317B (de) 1972-06-12
NL7100956A (xx) 1971-08-02
NL151867B (nl) 1976-12-15
FR2077084A5 (xx) 1971-10-15
JPS50524B1 (xx) 1975-01-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee