CA1029097A - Phase-lock-loop fm-stereo decoder including stereophonic/monophonic blend system for reducing audio distortion - Google Patents

Phase-lock-loop fm-stereo decoder including stereophonic/monophonic blend system for reducing audio distortion

Info

Publication number
CA1029097A
CA1029097A CA205,714A CA205714A CA1029097A CA 1029097 A CA1029097 A CA 1029097A CA 205714 A CA205714 A CA 205714A CA 1029097 A CA1029097 A CA 1029097A
Authority
CA
Canada
Prior art keywords
monophonic
loop
lock
phase
decoder including
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
CA205,714A
Other languages
French (fr)
Inventor
Thomas V. Cornell
Wayne A. Smith
Lester Wilkinson
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Application granted granted Critical
Publication of CA1029097A publication Critical patent/CA1029097A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2209—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders
    • H03D1/2236—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders using a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stereo-Broadcasting Methods (AREA)
CA205,714A 1973-07-27 1974-07-26 Phase-lock-loop fm-stereo decoder including stereophonic/monophonic blend system for reducing audio distortion Expired CA1029097A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00383243A US3825697A (en) 1973-07-27 1973-07-27 Phase-lock-loop fm-stereo decoder including stereophonic/monophonic blend system for reducing audio distortion

Publications (1)

Publication Number Publication Date
CA1029097A true CA1029097A (en) 1978-04-04

Family

ID=23512297

Family Applications (1)

Application Number Title Priority Date Filing Date
CA205,714A Expired CA1029097A (en) 1973-07-27 1974-07-26 Phase-lock-loop fm-stereo decoder including stereophonic/monophonic blend system for reducing audio distortion

Country Status (2)

Country Link
US (1) US3825697A (en)
CA (1) CA1029097A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49134302A (en) * 1973-04-25 1974-12-24
NL165027C (en) * 1973-05-25 Matsushita Electric Ind Co Ltd FOUR-CHANNEL STEREOPHONIC DISPLAY SYSTEM.
US4037057A (en) * 1974-08-01 1977-07-19 Nippon Gakki Seizo Kabushiki Kaisha Noise-cancelling apparatus for FM stereo receiver
US4029906A (en) * 1975-04-18 1977-06-14 Sansui Electric Co., Ltd. Automatic noise reduction system of FM stereo receiver
JPS5838968B2 (en) * 1975-06-06 1983-08-26 ソニー株式会社 Amplifier
JPS5243303A (en) * 1975-10-01 1977-04-05 Pioneer Electronic Corp Reversion circuit of fm stereo
US4107463A (en) * 1977-07-06 1978-08-15 Pearson Edward E Stereophonic noise suppression system
NL186732C (en) * 1978-01-25 1991-02-01 Philips Nv NOISE REDUCTION CIRCUIT FOR STEREO SIGNALS.
JPS5586235A (en) * 1978-12-25 1980-06-28 Toshiba Corp Fm stereo signal demodulator
US5408685A (en) * 1992-04-06 1995-04-18 Ford Motor Company Multipath detector using phase comparison of stereo pilot signal
JP4134301B2 (en) * 2004-02-12 2008-08-20 新潟精密株式会社 FM receiver
ATE526614T1 (en) * 2007-03-19 2011-10-15 Siemens Ag DEVICE AND METHOD FOR AUTOMATIC DETECTION AND DISTINCTION OF SINGLE OR TWO-CHANNEL ELECTRONIC SENSORS CONNECTED TO A TWO-CHANNEL SAFETY COMBINATION
JP2008258749A (en) * 2007-04-02 2008-10-23 Funai Electric Co Ltd Thin television set and audio apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584154A (en) * 1968-06-17 1971-06-08 Clarence Hunter Mcshan Stereo multiplex decoding system with a phase locked loop switching signal control
DE1939422C3 (en) * 1969-08-02 1985-10-03 Interessengemeinschaft für Rundfunkschutzrechte GmbH Schutzrechtsverwertung & Co KG, 4000 Düsseldorf Circuit arrangement for reducing the noise in a stereo broadcast receiver
US3711652A (en) * 1971-03-10 1973-01-16 Gen Electric Monolithic stereo decoder with balanced decoder operation
US3714595A (en) * 1971-03-25 1973-01-30 Warwick Electronics Inc Demodulator using a phase locked loop

Also Published As

Publication number Publication date
US3825697A (en) 1974-07-23

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