GB350977A - Arrangement for improving the quality of the balance in duplex systems in simultaneously operated telephone systems - Google Patents

Arrangement for improving the quality of the balance in duplex systems in simultaneously operated telephone systems

Info

Publication number
GB350977A
GB350977A GB37930/29A GB3793029A GB350977A GB 350977 A GB350977 A GB 350977A GB 37930/29 A GB37930/29 A GB 37930/29A GB 3793029 A GB3793029 A GB 3793029A GB 350977 A GB350977 A GB 350977A
Authority
GB
United Kingdom
Prior art keywords
systems
telephone
telegraphy
berlin
telephony
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
GB37930/29A
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.)
HEINRICH NORDHUSEN
Siemens and Halske AG
Siemens Corp
Original Assignee
HEINRICH NORDHUSEN
Siemens and Halske AG
Siemens Corp
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 HEINRICH NORDHUSEN, Siemens and Halske AG, Siemens Corp filed Critical HEINRICH NORDHUSEN
Publication of GB350977A publication Critical patent/GB350977A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/26—Lifting frames, e.g. for lifting vehicles; Platform lifts for selective lifting of parts of vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Dc Digital Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
GB37930/29A 1928-12-11 1929-12-10 Arrangement for improving the quality of the balance in duplex systems in simultaneously operated telephone systems Expired GB350977A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE350977X 1928-12-11

Publications (1)

Publication Number Publication Date
GB350977A true GB350977A (en) 1931-05-28

Family

ID=6265606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37930/29A Expired GB350977A (en) 1928-12-11 1929-12-10 Arrangement for improving the quality of the balance in duplex systems in simultaneously operated telephone systems

Country Status (3)

Country Link
BE (1) BE366013A (enrdf_load_stackoverflow)
FR (1) FR686550A (enrdf_load_stackoverflow)
GB (1) GB350977A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR686550A (fr) 1930-07-28
BE366013A (enrdf_load_stackoverflow)

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