GB860662A - Improvements in or relating to carrier telephone systems - Google Patents

Improvements in or relating to carrier telephone systems

Info

Publication number
GB860662A
GB860662A GB3329/58A GB332958A GB860662A GB 860662 A GB860662 A GB 860662A GB 3329/58 A GB3329/58 A GB 3329/58A GB 332958 A GB332958 A GB 332958A GB 860662 A GB860662 A GB 860662A
Authority
GB
United Kingdom
Prior art keywords
channel
carrier
frequency
band
pass
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
GB3329/58A
Other languages
English (en)
Inventor
Harry Bernard Law
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.)
Post Office
Original Assignee
Post Office
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 to NL235664D priority Critical patent/NL235664A/xx
Application filed by Post Office filed Critical Post Office
Priority to GB3329/58A priority patent/GB860662A/en
Priority to US788957A priority patent/US3089920A/en
Priority to DEP22142A priority patent/DE1133764B/de
Priority to NL235664A priority patent/NL113554C/xx
Publication of GB860662A publication Critical patent/GB860662A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/18—Frequency-division multiplex systems in which all the carriers are amplitude-modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • H04J1/045—Filters applied to frequency transposition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB3329/58A 1958-01-31 1958-01-31 Improvements in or relating to carrier telephone systems Expired GB860662A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL235664D NL235664A (https=) 1958-01-31
GB3329/58A GB860662A (en) 1958-01-31 1958-01-31 Improvements in or relating to carrier telephone systems
US788957A US3089920A (en) 1958-01-31 1959-01-26 Carrier telephone systems
DEP22142A DE1133764B (de) 1958-01-31 1959-01-30 Traegerfrequenz-Einseitenband-UEbertragungssystem
NL235664A NL113554C (https=) 1958-01-31 1959-01-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3329/58A GB860662A (en) 1958-01-31 1958-01-31 Improvements in or relating to carrier telephone systems

Publications (1)

Publication Number Publication Date
GB860662A true GB860662A (en) 1961-02-08

Family

ID=9756268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3329/58A Expired GB860662A (en) 1958-01-31 1958-01-31 Improvements in or relating to carrier telephone systems

Country Status (4)

Country Link
US (1) US3089920A (https=)
DE (1) DE1133764B (https=)
GB (1) GB860662A (https=)
NL (2) NL113554C (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137455A (en) * 1982-10-30 1984-10-03 Pioneer Electronic Corp Multiplexing procedures

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3342941A (en) * 1962-06-18 1967-09-19 Toyo Tsushinki Kabushiki Kaish Multi-channel carrier transmission system
US3418580A (en) * 1964-11-04 1968-12-24 Air Force Usa Voice signal processing and phase equalizing for ssb system
US4512025A (en) * 1982-11-23 1985-04-16 The United States Of America As Represented By The United States Department Of Energy Increasing capacity of baseband digital data communication networks
US4819263A (en) * 1986-06-30 1989-04-04 Cellular Communications Corporation Apparatus and method for hands free telephonic communication
JPS63141417A (ja) * 1986-12-03 1988-06-13 Fujitsu Ltd 無線送受信装置のチャンネル増減方式
US5634202A (en) * 1993-11-09 1997-05-27 Motorola, Inc. Method and apparatus for integrating a plurality of analog input signals prior to transmitting a communications signal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408462A (en) * 1943-06-08 1946-10-01 Bell Telephone Labor Inc Telephone system
DE969925C (de) * 1951-04-21 1958-07-31 Standard Elek K Ag Anordnung zur UEbertragung von Signalimpulsen durch Amplitudenaenderung des dauernd uebertragenen Traegers eines Traegerfrequenzkanals
DE972509C (de) * 1952-03-03 1959-08-06 Telefunken Gmbh Verfahren zur Ruf- und Wahlzeichenuebertragung in Traegerfrequenzsystemen
DE973062C (de) * 1952-03-03 1959-11-19 Telefunken Gmbh Verfahren zur Ruf- und Wahlzeichenuebertragung in Traegerfrequenzsystemen
US2832817A (en) * 1952-07-21 1958-04-29 Raibourn Paul Intelligence transmission system
DE958483C (de) * 1955-11-29 1957-02-21 Telefunken Gmbh UEbertragungssystem zur zusaetzlichen drahtlosen UEbertragung von Unterlagerungs- bzw. UEberlagerungstelegrafie ueber eine Funkverbindung
US2855462A (en) * 1955-12-22 1958-10-07 Itt Multichannel signal system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137455A (en) * 1982-10-30 1984-10-03 Pioneer Electronic Corp Multiplexing procedures

Also Published As

Publication number Publication date
NL235664A (https=)
NL113554C (https=) 1966-09-15
US3089920A (en) 1963-05-14
DE1133764B (de) 1962-07-26

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