JPS4890503A - - Google Patents

Info

Publication number
JPS4890503A
JPS4890503A JP47022098A JP2209872A JPS4890503A JP S4890503 A JPS4890503 A JP S4890503A JP 47022098 A JP47022098 A JP 47022098A JP 2209872 A JP2209872 A JP 2209872A JP S4890503 A JPS4890503 A JP S4890503A
Authority
JP
Japan
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
JP47022098A
Other versions
JPS5116121B2 (ja
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 filed Critical
Priority to JP47022098A priority Critical patent/JPS5116121B2/ja
Priority to DK487572AA priority patent/DK137153B/da
Priority to GB4553872A priority patent/GB1410381A/en
Priority to CA153,125A priority patent/CA1002616A/en
Priority to SE7212781A priority patent/SE384431B/xx
Priority to NLAANVRAGE7213487,A priority patent/NL175870C/xx
Priority to DE2248769A priority patent/DE2248769B2/de
Publication of JPS4890503A publication Critical patent/JPS4890503A/ja
Priority to US05/502,531 priority patent/US3983500A/en
Publication of JPS5116121B2 publication Critical patent/JPS5116121B2/ja
Priority to US05/698,191 priority patent/US4107478A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00992—Circuits for stereophonic or quadraphonic recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
    • H03D3/244—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop combined with means for obtaining automatic gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/006—Systems employing more than two channels, e.g. quadraphonic in which a plurality of audio signals are transformed in a combination of audio signals and modulated signals, e.g. CD-4 systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Power Engineering (AREA)
  • Stereophonic System (AREA)
JP47022098A 1971-10-05 1972-03-03 Expired JPS5116121B2 (ja)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP47022098A JPS5116121B2 (ja) 1972-03-03 1972-03-03
DK487572AA DK137153B (da) 1971-10-05 1972-10-02 Demodulationsanlæg for vinkelmodulerede bølger.
GB4553872A GB1410381A (en) 1971-10-05 1972-10-03 Angle modulated wave demodulation system
CA153,125A CA1002616A (en) 1971-10-05 1972-10-03 Angle modulated wave demodulation system
SE7212781A SE384431B (sv) 1971-10-05 1972-10-04 Demoduleringssystem for vinkelmodulerade vagor
NLAANVRAGE7213487,A NL175870C (nl) 1971-10-05 1972-10-05 Demodulatieschakeling met een fase-regelschakeling.
DE2248769A DE2248769B2 (de) 1971-10-05 1972-10-05 Demodulatorschaltung für winkelmodulierte elektrische Schwingungen
US05/502,531 US3983500A (en) 1971-10-05 1974-09-03 Angle modulated wave demodulation system
US05/698,191 US4107478A (en) 1971-10-05 1976-06-21 Angle modulated wave demodulation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47022098A JPS5116121B2 (ja) 1972-03-03 1972-03-03

Publications (2)

Publication Number Publication Date
JPS4890503A true JPS4890503A (ja) 1973-11-26
JPS5116121B2 JPS5116121B2 (ja) 1976-05-21

Family

ID=12073392

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47022098A Expired JPS5116121B2 (ja) 1971-10-05 1972-03-03

Country Status (1)

Country Link
JP (1) JPS5116121B2 (ja)

Also Published As

Publication number Publication date
JPS5116121B2 (ja) 1976-05-21

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