JPH0496157U - - Google Patents

Info

Publication number
JPH0496157U
JPH0496157U JP1991010620U JP1062091U JPH0496157U JP H0496157 U JPH0496157 U JP H0496157U JP 1991010620 U JP1991010620 U JP 1991010620U JP 1062091 U JP1062091 U JP 1062091U JP H0496157 U JPH0496157 U JP H0496157U
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
JP1991010620U
Other languages
Japanese (ja)
Other versions
JP2515741Y2 (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
Publication of JPH0496157U publication Critical patent/JPH0496157U/ja
Application granted granted Critical
Publication of JP2515741Y2 publication Critical patent/JP2515741Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/006—Signal sampling
    • H03D2200/0062—Computation of input samples, e.g. successive samples
    • 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
    • H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP1991010620U 1981-03-26 1991-03-01 乗積復調装置 Expired - Lifetime JP2515741Y2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/247,800 US4388595A (en) 1981-03-26 1981-03-26 Apparatus and method for removing bias distortion from a product demodulator
US247,800 1981-03-26

Publications (2)

Publication Number Publication Date
JPH0496157U true JPH0496157U (2) 1992-08-20
JP2515741Y2 JP2515741Y2 (ja) 1996-10-30

Family

ID=22936434

Family Applications (2)

Application Number Title Priority Date Filing Date
JP57046444A Pending JPS57170654A (en) 1981-03-26 1982-03-25 Product demodulator and product demodulating method
JP1991010620U Expired - Lifetime JP2515741Y2 (ja) 1981-03-26 1991-03-01 乗積復調装置

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP57046444A Pending JPS57170654A (en) 1981-03-26 1982-03-25 Product demodulator and product demodulating method

Country Status (2)

Country Link
US (1) US4388595A (2)
JP (2) JPS57170654A (2)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451792A (en) * 1981-10-23 1984-05-29 Motorola, Inc. Auto-tuned frequency discriminator
US4479092A (en) * 1981-11-20 1984-10-23 At&T Bell Laboratories Digital frequency-shift keyed demodulator
JPS5892162A (ja) * 1981-11-27 1983-06-01 Hitachi Ltd タイミング位相制御方法及びその装置
GB2127992B (en) * 1982-09-28 1986-04-16 Audim Sa Cross-correlator
GB8332897D0 (en) * 1983-12-09 1984-01-18 Plessey Co Plc Fm detection
US4682174A (en) * 1985-10-07 1987-07-21 Motorola, Inc. Moving target indicator using a surface acoustic wave device
US4843615A (en) * 1987-05-08 1989-06-27 Harris Corp. CPFSK communication system employing nyquist-filtered modulator/demodulator
FR2621756A1 (fr) * 1987-10-13 1989-04-14 Labo Electronique Physique Circuit formant un filtre actif r.c. pour application coupe-bande ou passe-tout
FR2622752B1 (fr) * 1987-10-30 1990-02-23 Labo Electronique Physique Circuit formant un filtre actif r.c. pour application coupe-bande
US4795923A (en) * 1987-11-25 1989-01-03 Tektronix, Inc. Adjustable delay circuit
US5420888A (en) * 1992-05-21 1995-05-30 International Business Machines Corporation System and method for split phase demodulation of frequency shift keyed signals
JPH0758551A (ja) * 1993-08-10 1995-03-03 Sony Corp 周波数復調回路
JPH0983588A (ja) * 1995-09-18 1997-03-28 Mitsubishi Electric Corp 復調器及び変復調システム及び復調方法
US5661433A (en) * 1996-06-27 1997-08-26 Motorola, Inc. Digital FM demodulator
WO2002062221A1 (en) 2001-02-07 2002-08-15 East Carolina University Hearing assessment via computer network
EP1643704B1 (en) * 2004-09-30 2007-10-31 Sony Deutschland GmbH Frequency-shift-keying demodulator and method of frequency-shift-keying
US7274232B2 (en) * 2005-03-17 2007-09-25 Realtek Semiconductor Corp. Variable delay clock synthesizer
CN1841921A (zh) * 2005-04-03 2006-10-04 鸿富锦精密工业（深圳）有限公司 倍频电路
JP4583240B2 (ja) * 2005-05-20 2010-11-17 Ｏｋｉセミコンダクタ株式会社 Ｆｓｋ復調器
US10368785B2 (en) 2008-10-24 2019-08-06 East Carolina University In-ear hearing test probe devices and methods and systems using same
US11621701B2 (en) 2014-03-21 2023-04-04 Dynaspot Corp. Filter that minimizes in-band noise and maximizes detection sensitivity of exponentially-modulated signals
US10320365B2 (en) * 2014-03-21 2019-06-11 Dynaspot Corp. Filter that minimizes in-band noise and maximizes detection sensitivity of exponentially-modulated signals
US11025230B2 (en) 2014-03-21 2021-06-01 Dynaspot Corp. Filter that minimizes in-band noise and maximizes detection sensitivity of exponentially-modulated signals

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162611A (en) * 1979-06-05 1980-12-18 Mitsubishi Electric Corp Amplitude and phase adjuster

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387220A (en) * 1965-02-23 1968-06-04 Automatic Elect Lab Apparatus and method for synchronously demodulating frequency modulated differentially coherent duobinary signals
US3764927A (en) * 1971-12-07 1973-10-09 Gen Datacomm Ind Inc Wide band frequency discriminator
US3778727A (en) * 1972-05-11 1973-12-11 Singer Co Crystal controlled frequency discriminator
JPS5178975A (en) * 1974-12-30 1976-07-09 Matsushita Electric Industrial Co Ltd Isohenchohoho
JPS5233460A (en) * 1975-09-10 1977-03-14 Sony Corp Fm demodulator
IT1052696B (it) * 1975-12-18 1981-07-20 Cselt Centro Studi Lab Telecom Procedimento e dispositivo numerico per la correzione adattativa della fase nella demodulazione coerente di segnali numerici

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162611A (en) * 1979-06-05 1980-12-18 Mitsubishi Electric Corp Amplitude and phase adjuster

Also Published As

Publication number Publication date
JPS57170654A (en) 1982-10-20
US4388595A (en) 1983-06-14
JP2515741Y2 (ja) 1996-10-30

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