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DE3107028A1 - Stereo-demodulatorsystem - Google Patents

Stereo-demodulatorsystem

Info

Publication number
DE3107028A1
DE3107028A1 DE19813107028 DE3107028A DE3107028A1 DE 3107028 A1 DE3107028 A1 DE 3107028A1 DE 19813107028 DE19813107028 DE 19813107028 DE 3107028 A DE3107028 A DE 3107028A DE 3107028 A1 DE3107028 A1 DE 3107028A1
Authority
DE
Germany
Prior art keywords
stereo demodulator
demodulator system
stereo
demodulator
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.)
Granted
Application number
DE19813107028
Other languages
English (en)
Other versions
DE3107028C2 (de
Inventor
Yoshimi Iso
Shigeki Inoue
Toshifumi Shibuya
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 JP2279380A external-priority patent/JPS5949743B2/ja
Priority claimed from JP14050780A external-priority patent/JPS5765030A/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE3107028A1 publication Critical patent/DE3107028A1/de
Application granted granted Critical
Publication of DE3107028C2 publication Critical patent/DE3107028C2/de
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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1653—Detection of the presence of stereo signals and pilot signal regeneration

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
DE3107028A 1980-02-27 1981-02-25 Stereo-Demodulator Expired DE3107028C2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2279380A JPS5949743B2 (ja) 1980-02-27 1980-02-27 ステレオ復調装置
JP14050780A JPS5765030A (en) 1980-10-09 1980-10-09 Switching signal generating device for stereo demodulation

Publications (2)

Publication Number Publication Date
DE3107028A1 true DE3107028A1 (de) 1981-12-17
DE3107028C2 DE3107028C2 (de) 1983-07-14

Family

ID=26360065

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3107028A Expired DE3107028C2 (de) 1980-02-27 1981-02-25 Stereo-Demodulator

Country Status (2)

Country Link
US (1) US4392020A (de)
DE (1) DE3107028C2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7671644B2 (en) * 2006-05-24 2010-03-02 Micron Technology Inc. Process insensitive delay line

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962551A (en) * 1974-03-28 1976-06-08 Motorola, Inc. Methods and systems for providing stereo decoding signals
DE3005033A1 (de) * 1979-02-13 1980-08-14 Hitachi Ltd Stereodemodulatorschaltung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589615B2 (ja) * 1974-12-16 1983-02-22 ソニー株式会社 Ｆｍ ステレオフクチヨウホウシキ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962551A (en) * 1974-03-28 1976-06-08 Motorola, Inc. Methods and systems for providing stereo decoding signals
DE3005033A1 (de) * 1979-02-13 1980-08-14 Hitachi Ltd Stereodemodulatorschaltung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DD-Z: radio fernsehen elektronik, Bd. 21, 1972, H. 18, S. 609-610 *

Also Published As

Publication number Publication date
US4392020A (en) 1983-07-05
DE3107028C2 (de) 1983-07-14

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: MUELLER-BOERNER, R., DIPL.-ING., 1000 BERLIN WEY, H., DIPL.-ING., PAT.-ANW., 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee