GB335108A - Telephone system on pupinised cables, particularly with light loading - Google Patents

Telephone system on pupinised cables, particularly with light loading

Info

Publication number
GB335108A
GB335108A GB34296/29A GB3429629A GB335108A GB 335108 A GB335108 A GB 335108A GB 34296/29 A GB34296/29 A GB 34296/29A GB 3429629 A GB3429629 A GB 3429629A GB 335108 A GB335108 A GB 335108A
Authority
GB
United Kingdom
Prior art keywords
band
filters
frequency
amplifier
cycles
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
GB34296/29A
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 and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
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
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB335108A publication Critical patent/GB335108A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/78—Circuit arrangements in which low-frequency speech signals proceed in one direction on the line, while speech signals proceeding in the other direction on the line are modulated on a high-frequency carrier signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB34296/29A 1928-11-10 1929-11-09 Telephone system on pupinised cables, particularly with light loading Expired GB335108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE335108X 1928-11-10

Publications (1)

Publication Number Publication Date
GB335108A true GB335108A (en) 1930-09-18

Family

ID=6218946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34296/29A Expired GB335108A (en) 1928-11-10 1929-11-09 Telephone system on pupinised cables, particularly with light loading

Country Status (3)

Country Link
FR (4) FR654656A (fr)
GB (1) GB335108A (fr)
NL (1) NL38900C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695740A (en) * 1984-09-26 1987-09-22 Xilinx, Inc. Bidirectional buffer amplifier
US4713557A (en) * 1984-09-26 1987-12-15 Xilinx, Inc. Bidirectional buffer amplifier
US6664807B1 (en) 2002-01-22 2003-12-16 Xilinx, Inc. Repeater for buffering a signal on a long data line of a programmable logic device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919238C (de) * 1942-06-24 1954-10-18 Siemens Ag Traegerfrequenzuebertragungssystem

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695740A (en) * 1984-09-26 1987-09-22 Xilinx, Inc. Bidirectional buffer amplifier
US4713557A (en) * 1984-09-26 1987-12-15 Xilinx, Inc. Bidirectional buffer amplifier
US6664807B1 (en) 2002-01-22 2003-12-16 Xilinx, Inc. Repeater for buffering a signal on a long data line of a programmable logic device

Also Published As

Publication number Publication date
FR42216E (fr) 1933-06-15
FR43820E (fr) 1934-09-06
NL38900C (fr)
FR654656A (fr) 1929-04-08
FR37609E (fr) 1930-01-08

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