JPS58501568A - ディジタルｆｓｋモデムにおける等時性歪を減少するゼロクロス補間器 - Google Patents

ディジタルｆｓｋモデムにおける等時性歪を減少するゼロクロス補間器

Info

Publication number
JPS58501568A
JPS58501568A JP57502542A JP50254282A JPS58501568A JP S58501568 A JPS58501568 A JP S58501568A JP 57502542 A JP57502542 A JP 57502542A JP 50254282 A JP50254282 A JP 50254282A JP S58501568 A JPS58501568 A JP S58501568A
Authority
JP
Japan
Prior art keywords
value
sample
signal
interval
difference
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
JP57502542A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0526378B2 (enExample
Inventor
アールケ・ピーター・エイチ
スタツフアー・マイケル・ケイ
Original Assignee
アドバンスト・マイクロ・ディバイシズ・インコ−ポレ−テッド
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 アドバンスト・マイクロ・ディバイシズ・インコ−ポレ−テッド filed Critical アドバンスト・マイクロ・ディバイシズ・インコ−ポレ−テッド
Publication of JPS58501568A publication Critical patent/JPS58501568A/ja
Publication of JPH0526378B2 publication Critical patent/JPH0526378B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/156—Demodulator circuits; Receiver circuits with demodulation using temporal properties of the received signal, e.g. detecting pulse width
    • H04L27/1566—Demodulator circuits; Receiver circuits with demodulation using temporal properties of the received signal, e.g. detecting pulse width using synchronous sampling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP57502542A 1981-09-24 1982-07-23 ディジタルｆｓｋモデムにおける等時性歪を減少するゼロクロス補間器 Granted JPS58501568A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/305,015 US4412339A (en) 1981-09-24 1981-09-24 Zero-crossing interpolator to reduce isochronous distortion in a digital FSK modem

Publications (2)

Publication Number Publication Date
JPS58501568A true JPS58501568A (ja) 1983-09-16
JPH0526378B2 JPH0526378B2 (enExample) 1993-04-15

Family

ID=23178937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57502542A Granted JPS58501568A (ja) 1981-09-24 1982-07-23 ディジタルｆｓｋモデムにおける等時性歪を減少するゼロクロス補間器

Country Status (6)

Country Link
US (1) US4412339A (enExample)
EP (1) EP0088771B1 (enExample)
JP (1) JPS58501568A (enExample)
DE (1) DE3276346D1 (enExample)
IT (1) IT1152630B (enExample)
WO (1) WO1983001159A1 (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479092A (en) * 1981-11-20 1984-10-23 At&T Bell Laboratories Digital frequency-shift keyed demodulator
DE3223345A1 (de) * 1982-06-23 1984-01-05 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und anordnung zum demodulieren eines frequenzmodulierten eingangssignals
EP0146652B1 (de) * 1983-12-24 1987-09-02 Deutsche ITT Industries GmbH Digitaler FM-Demodulator für digitalisierte FM-Signale
NL8401310A (nl) * 1984-04-24 1985-11-18 Philips Nv Inrichting voor het opwekken van een kloksignaal.
BE901232A (fr) * 1984-12-07 1985-06-07 Itt Ind Belgium Systeme de radiocommunication.
US4635277A (en) * 1985-10-21 1987-01-06 Rockwell International Corporation Digital clock recovery circuit apparatus
US5005189A (en) * 1989-01-23 1991-04-02 Hackett Jr Charles M Detection of digital signals received from multipath channels
GB2232853A (en) * 1989-05-31 1990-12-19 Philips Electronic Associated Zero crossing detector arrangements
US5272448A (en) * 1991-11-20 1993-12-21 Numa Technologies, Inc. Method and apparatus to perform digital demodulation by measuring periods between zero crossings
CA2124114C (en) * 1991-11-20 1999-03-30 Mark D. Hedstrom Digital demodulator
US5159281A (en) * 1991-11-20 1992-10-27 Nsi Partners Digital demodulator using numerical processor to evaluate period measurements
US5263054A (en) * 1992-05-21 1993-11-16 International Business Machines Corporation Method and system for interpolating baud rate timing recovery for asynchronous start stop protocol
US5329242A (en) * 1992-10-22 1994-07-12 Myers Glen A Method and apparatus for signal demodulation using time-intervals
US5315284A (en) * 1992-12-23 1994-05-24 International Business Machines Corporation Asynchronous digital threshold detector for a digital data storage channel
US6278747B1 (en) * 1998-03-13 2001-08-21 International Business Machines Corporation Method and apparatus for performing digital detection of data stored on an optical medium
US6775084B1 (en) 2000-02-14 2004-08-10 Stmicroelectronics, Inc. Circuit and method for determining the phase difference between a sample clock and a sampled signal
US6366225B1 (en) * 2000-02-14 2002-04-02 Stmicroelectronics, Inc. Circuit and method for determining the phase difference between a sample clock and a sample signal by linear approximation
US6983298B2 (en) * 2001-03-28 2006-01-03 Texas Instruments Incorporated Method and apparatus for linear interpolation using gradient tables
EP2013565B1 (en) 2006-04-28 2014-02-26 Orica Explosives Technology Pty Ltd Methods of controlling components of blasting apparatuses, blasting apparatuses, and components thereof
US8352526B1 (en) * 2006-06-16 2013-01-08 Xilinx, Inc. Direct digital synthesis with reduced jitter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547846A (en) * 1977-06-20 1979-01-20 Nec Corp Discrimination system for digital amplitude, polarity and code

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846708A (en) * 1973-03-15 1974-11-05 Bell Telephone Labor Inc Digital demodulation of frequency-shift keyed data signals
US3943346A (en) * 1974-07-22 1976-03-09 Rca Corporation Digital interpolator for reducing time quantization errors
DE2658957A1 (de) * 1976-03-03 1977-09-08 Ibm Detektorschaltung fuer den traeger bei digitaler datenuebertragung
FR2377729A1 (fr) * 1977-01-14 1978-08-11 Thomson Csf Dispositif de decodage de signaux numeriques, et systeme comportant un tel dispositif
US4313173A (en) * 1980-06-10 1982-01-26 Bell Telephone Laboratories, Incorporated Linear interpolator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547846A (en) * 1977-06-20 1979-01-20 Nec Corp Discrimination system for digital amplitude, polarity and code

Also Published As

Publication number Publication date
WO1983001159A1 (en) 1983-03-31
IT8223423A1 (it) 1984-03-24
US4412339A (en) 1983-10-25
IT1152630B (it) 1987-01-07
DE3276346D1 (en) 1987-06-19
JPH0526378B2 (enExample) 1993-04-15
EP0088771A1 (en) 1983-09-21
EP0088771A4 (en) 1984-07-26
IT8223423A0 (it) 1982-09-24
EP0088771B1 (en) 1987-05-13

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