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GB1519058A - Signal wave transmission - Google Patents

Signal wave transmission

Info

Publication number
GB1519058A
GB1519058A GB2992175A GB2992175A GB1519058A GB 1519058 A GB1519058 A GB 1519058A GB 2992175 A GB2992175 A GB 2992175A GB 2992175 A GB2992175 A GB 2992175A GB 1519058 A GB1519058 A GB 1519058A
Authority
GB
United Kingdom
Prior art keywords
intelligence
july
waveform
counter
quatrain
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
GB2992175A
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.)
Arthur D Little Inc
Original Assignee
Arthur D Little Inc
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 US05/590,941 external-priority patent/US4106007A/en
Application filed by Arthur D Little Inc filed Critical Arthur D Little Inc
Publication of GB1519058A publication Critical patent/GB1519058A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J9/00—Multiplex systems in which each channel is represented by a different type of modulation of the carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5466—Systems for power line communications using three phases conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

1519058 Selective Signalling ARTHUR D LITTLE Inc 16 July 1975 [17 July 1974 1 July 1975] 29921/75 Heading G4H [Also in Division H4] Digital intelligence is transmitted by combining an intelligence waveform with a carrier waveform (e.g. power wave for remote metering or switching) so as to modify the timing of occurrence of parts of the carrier (e.g. zerocrossings) and produce a composite waveform in which the intelligence is conveyed and detected by the variations in intervals between preselected locations of the composite wave. The composite wave shown dotted has "quatrain" sequences of increased, unchanged, decreased, unchanged durations between successive zero-crossings which is detected (Fig. 4, not shown) by counting the quatrains in a 2-bit counter (36) to gate 1 MHz clock pulses to an up-down counter (40) thereby recovering the intelligence for temporary storage (52), bits being subtracted from counter (40) at the end of each quatrain to discriminate against noise.
GB2992175A 1974-07-17 1975-07-16 Signal wave transmission Expired GB1519058A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48945074A 1974-07-17 1974-07-17
US05/590,941 US4106007A (en) 1974-07-17 1975-07-01 Method and apparatus for transmitting intelligence over a carrier wave

Publications (1)

Publication Number Publication Date
GB1519058A true GB1519058A (en) 1978-07-26

Family

ID=27049719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2992175A Expired GB1519058A (en) 1974-07-17 1975-07-16 Signal wave transmission

Country Status (6)

Country Link
JP (1) JPS5134607A (en)
CH (1) CH598722A5 (en)
DE (1) DE2531837C3 (en)
FR (1) FR2279273A1 (en)
GB (1) GB1519058A (en)
NL (1) NL176418C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006639A1 (en) * 1988-11-29 1990-06-14 Vsesojuzny Nauchno-Issledovatelsky Institut Elektrifikatsii Selskogo Khozyaistva Device for transmission of information through a three-phase power line
CN114978242A (en) * 2022-05-13 2022-08-30 青岛启超微信息科技有限公司 Current carrier modulation system and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ196231A (en) * 1980-02-18 1985-04-30 Sangamo Weston Transmission of digital data on power lines:data phase modulates dual coherent carrier frequencies
ZA81769B (en) * 1980-02-18 1982-02-24 Sangamo Weston Receivers suitable for use in remotely-operable switching devices and data transmission systems
DE3545601A1 (en) * 1985-12-21 1987-07-02 Gen Service Electronics Gmbh METHOD FOR TRANSMITTING BIT SIGNALS, BIT SIGNAL SIGNALS AND BIT SIGNAL RECEIVERS FOR CARRYING OUT THE METHOD AND BY THE METHOD OF RECORDING EXAMPLES

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040209A (en) * 1973-08-16 1975-04-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006639A1 (en) * 1988-11-29 1990-06-14 Vsesojuzny Nauchno-Issledovatelsky Institut Elektrifikatsii Selskogo Khozyaistva Device for transmission of information through a three-phase power line
CN114978242A (en) * 2022-05-13 2022-08-30 青岛启超微信息科技有限公司 Current carrier modulation system and method
CN114978242B (en) * 2022-05-13 2024-05-07 青岛启超微信息科技有限公司 Current carrier modulation system and method

Also Published As

Publication number Publication date
NL7508566A (en) 1976-01-20
NL176418B (en) 1984-11-01
FR2279273A1 (en) 1976-02-13
CH598722A5 (en) 1978-05-12
DE2531837A1 (en) 1976-01-29
NL176418C (en) 1985-04-01
FR2279273B1 (en) 1979-02-16
DE2531837B2 (en) 1977-05-26
JPS5134607A (en) 1976-03-24
DE2531837C3 (en) 1979-06-21

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Legal Events

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

Effective date: 19920716