IT1132276B - Generatore di funzione tangenziale,particolarmente utile per decodificare segnali stereo con modulazione di ampiezza - Google Patents

Generatore di funzione tangenziale,particolarmente utile per decodificare segnali stereo con modulazione di ampiezza

Info

Publication number
IT1132276B
IT1132276B IT23862/80A IT2386280A IT1132276B IT 1132276 B IT1132276 B IT 1132276B IT 23862/80 A IT23862/80 A IT 23862/80A IT 2386280 A IT2386280 A IT 2386280A IT 1132276 B IT1132276 B IT 1132276B
Authority
IT
Italy
Prior art keywords
particularly useful
amplitude modulation
function generator
stereo signals
decoding stereo
Prior art date
Application number
IT23862/80A
Other languages
English (en)
Other versions
IT8023862A0 (it
Inventor
Charles James Marik
Original Assignee
Motorola 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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of IT8023862A0 publication Critical patent/IT8023862A0/it
Application granted granted Critical
Publication of IT1132276B publication Critical patent/IT1132276B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
    • H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
    • H04H20/47—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems
    • H04H20/49—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems for AM stereophonic broadcast systems
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor
    • G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Algebra (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
IT23862/80A 1979-08-02 1980-08-01 Generatore di funzione tangenziale,particolarmente utile per decodificare segnali stereo con modulazione di ampiezza IT1132276B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/063,273 US4278839A (en) 1979-08-02 1979-08-02 Tangent function generator for AM stereo

Publications (2)

Publication Number Publication Date
IT8023862A0 IT8023862A0 (it) 1980-08-01
IT1132276B true IT1132276B (it) 1986-07-02

Family

ID=22048117

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23862/80A IT1132276B (it) 1979-08-02 1980-08-01 Generatore di funzione tangenziale,particolarmente utile per decodificare segnali stereo con modulazione di ampiezza

Country Status (9)

Country Link
US (1) US4278839A (it)
EP (1) EP0032947B1 (it)
JP (1) JPS612992B2 (it)
BR (1) BR8008726A (it)
CA (1) CA1144240A (it)
DE (1) DE3068873D1 (it)
IT (1) IT1132276B (it)
MX (1) MX148496A (it)
WO (1) WO1981000497A1 (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199371A (en) * 1981-06-03 1982-12-07 Hitachi Ltd Gamma correcting circuit
JPS647736A (en) * 1987-06-30 1989-01-11 Pioneer Electronic Corp Am stereoscopic demodulation circuit
US5239699A (en) * 1991-02-06 1993-08-24 Motorola, Inc. Am-fm combined stereo receiver
DE4340012B4 (de) * 1993-11-24 2004-04-22 Blaupunkt-Werke Gmbh Demodulator
JP5473669B2 (ja) 2010-02-23 2014-04-16 ルネサスエレクトロニクス株式会社 クロック生成回路と半導体装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708693A (en) * 1971-05-19 1973-01-02 Ferrex Corp Gamma corrector
US3740539A (en) * 1972-02-28 1973-06-19 Tektronix Inc Programmable function generator
US4015079A (en) * 1973-06-12 1977-03-29 Tokyo Shibaura Electric Co., Ltd. Gamma correction circuit
US3982115A (en) * 1975-01-31 1976-09-21 Tektronix, Inc. Electronically programmable function generator
SE389578B (sv) * 1975-04-01 1976-11-08 Asea Ab Funktionsgenerator
US4032797A (en) * 1975-08-06 1977-06-28 The Solartron Electronic Group Limited Quantising circuit
US4172966A (en) * 1978-02-23 1979-10-30 Motorola, Inc. AM stereophonic receiver

Also Published As

Publication number Publication date
EP0032947A1 (en) 1981-08-05
BR8008726A (pt) 1981-06-09
DE3068873D1 (de) 1984-09-13
IT8023862A0 (it) 1980-08-01
WO1981000497A1 (en) 1981-02-19
JPS56500984A (it) 1981-07-16
MX148496A (es) 1983-04-26
EP0032947B1 (en) 1984-08-08
CA1144240A (en) 1983-04-05
US4278839A (en) 1981-07-14
JPS612992B2 (it) 1986-01-29
EP0032947A4 (en) 1982-01-08

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