GB1314483A - Method and arrangement for processing a periodical signal - Google Patents

Method and arrangement for processing a periodical signal

Info

Publication number
GB1314483A
GB1314483A GB999371A GB999371A GB1314483A GB 1314483 A GB1314483 A GB 1314483A GB 999371 A GB999371 A GB 999371A GB 999371 A GB999371 A GB 999371A GB 1314483 A GB1314483 A GB 1314483A
Authority
GB
United Kingdom
Prior art keywords
frequency
periodical
signal
arrangement
processing
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
GB999371A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB1314483A publication Critical patent/GB1314483A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/16—Networks for phase shifting
    • H03H11/22—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H03H19/002—N-path filters

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Filters And Equalizers (AREA)

Abstract

1314483 Phase shifting arrangements TELEFONAKTIEBOLAGET L M ERICSSON 19 April 1971 [23 April 1970] 9993/71 Heading H3F A difference frequency is generated from first and second periodical signals, and at least one third periodical signal is generated from periodical samples of the difference frequency signal so as to be phase shifted from the first periodical signals. A signal of frequency f is combined in mixer G with frequency 3f 0 (where 3f 0 > 2f); filter H selects the frequency (3f 0 -f) and this is applied to a sampling circuit A, in which the waveform is sampled at the frequency 9f 0 . This output is applied to three gates B1, B2, B3 which are driven respectively by successive first, second and third pulses from a pulse source of frequency 9f 0 . The outputs are smoothed by filters C1, C2, C3, respectively, and comprise the frequency f with respective phase-shifts of 0, 120 and 240 degrees.
GB999371A 1970-04-23 1971-04-19 Method and arrangement for processing a periodical signal Expired GB1314483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE561570A SE341200B (en) 1970-04-23 1970-04-23

Publications (1)

Publication Number Publication Date
GB1314483A true GB1314483A (en) 1973-04-26

Family

ID=20266838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB999371A Expired GB1314483A (en) 1970-04-23 1971-04-19 Method and arrangement for processing a periodical signal

Country Status (4)

Country Link
FR (1) FR2086279B1 (en)
GB (1) GB1314483A (en)
NL (1) NL7105464A (en)
SE (1) SE341200B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758204A (en) * 1955-08-16 1956-08-07 Hughes Aircraft Co Wide-band phase shifter network
FR1427458A (en) * 1964-03-20 1966-02-04 Bbc Brown Boveri & Cie Frequency and amplitude dependent target value transmitter
FR1458627A (en) * 1965-09-30 1966-03-04 Oxymill Sa Variable frequency polyphase electric current generator
CH429888A (en) * 1965-11-18 1967-02-15 Bbc Brown Boveri & Cie Converter circuit for speed control of brushless motors in both directions of rotation
GB1178935A (en) * 1967-09-13 1970-01-21 Philips Electronic Associated Low-Frequency Generator

Also Published As

Publication number Publication date
FR2086279B1 (en) 1975-07-04
NL7105464A (en) 1971-10-26
DE2117927A1 (en) 1971-11-18
SE341200B (en) 1971-12-20
DE2117927B2 (en) 1972-10-12
FR2086279A1 (en) 1971-12-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees