GB2130054A - Apparatus for converting transmitting and reconverting a sampled signal - Google Patents

Apparatus for converting transmitting and reconverting a sampled signal

Info

Publication number
GB2130054A
GB2130054A GB08333702A GB8333702A GB2130054A GB 2130054 A GB2130054 A GB 2130054A GB 08333702 A GB08333702 A GB 08333702A GB 8333702 A GB8333702 A GB 8333702A GB 2130054 A GB2130054 A GB 2130054A
Authority
GB
United Kingdom
Prior art keywords
unit
sample
samples
frequency
signal
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.)
Granted
Application number
GB08333702A
Other versions
GB8333702D0 (en
GB2130054B (en
Inventor
Tore Torstensson-Fjallbrant
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8333702D0 publication Critical patent/GB8333702D0/en
Publication of GB2130054A publication Critical patent/GB2130054A/en
Application granted granted Critical
Publication of GB2130054B publication Critical patent/GB2130054B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Radio Relay Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Transmitters (AREA)

Abstract

An apparatus for converting a signal sampled uniformely in the time domain to a signal sampled in the frequency domain, with certain samples excluded, transmitting the non-uniformly sampled signal and reconverting the transmitted signal to a uniformly sampled signal in the time domain comprises at the transmitter end a delay chain (Fa), a time-frequency converter (TFC), a logic unit (LO) and change-over switch (01) for excluding certain samples by control from the logic unit (LO) and comprises at the receiver end two calculation units (B1 and, respectively, B2) and between the same two identical series connections, each of which includes a delay circuit (F1 and, respectively, F2), a multiplication unit (M1 and, respectively, M2) and an addition unit (S1 and, respectively, S2), of which the first calculation unit (B1) converts frequency samples to amplitude sample, which is fed to one (F1-M1-S1) of the series connections for generating excluded samples, and to phase sample, which is fed to the remaining one (F2-M2-S2) of the series connections, and the second calculation unit (B2) reconverts amplitude sample and phase sample to frequency sample. In a subsequent series connection of delay unit (F3), multiplication unit (M3) and addition unit (S3) the frequency sample is reconverted back to uniformly distributed samples in the time domain.
GB08333702A 1982-04-27 1983-04-26 Apparatus for converting transmitting and reconverting a sampled signal Expired GB2130054B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8202629A SE430739B (en) 1982-04-27 1982-04-27 DEVICE FOR TRANSFORMATION, TRANSFER AND RE-TRANSFORMATION OF A COMPLETE SIGNAL
PCT/SE1983/000165 WO1983003935A1 (en) 1982-04-27 1983-04-26 Apparatus for converting, transmitting and reconverting a sampled signal

Publications (3)

Publication Number Publication Date
GB8333702D0 GB8333702D0 (en) 1984-01-25
GB2130054A true GB2130054A (en) 1984-05-23
GB2130054B GB2130054B (en) 1986-01-08

Family

ID=20346653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08333702A Expired GB2130054B (en) 1982-04-27 1983-04-26 Apparatus for converting transmitting and reconverting a sampled signal

Country Status (5)

Country Link
EP (1) EP0106877A1 (en)
JP (1) JPS59500791A (en)
GB (1) GB2130054B (en)
SE (1) SE430739B (en)
WO (1) WO1983003935A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506912A1 (en) * 1985-02-27 1986-08-28 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover METHOD FOR TRANSMITTING AN AUDIO SIGNAL
ATE73591T1 (en) * 1987-09-30 1992-03-15 Thomson Brandt Gmbh METHOD OF TRANSMITTING AN AUDIO SIGNAL.
ES2044616T3 (en) * 1989-10-06 1994-01-01 Telefunken Fernseh & Rundfunk PROCEDURE FOR THE TRANSMISSION OF A SIGN.

Also Published As

Publication number Publication date
WO1983003935A1 (en) 1983-11-10
JPS59500791A (en) 1984-05-04
EP0106877A1 (en) 1984-05-02
GB8333702D0 (en) 1984-01-25
GB2130054B (en) 1986-01-08
SE8202629L (en) 1983-10-28
SE430739B (en) 1983-12-05

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Legal Events

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