IT1025916B - Dispositivo di correzione di soglia per sistemi di trasmissione con modulazione a spostamento di frequenza - Google Patents

Dispositivo di correzione di soglia per sistemi di trasmissione con modulazione a spostamento di frequenza

Info

Publication number
IT1025916B
IT1025916B IT29714/74A IT2971474A IT1025916B IT 1025916 B IT1025916 B IT 1025916B IT 29714/74 A IT29714/74 A IT 29714/74A IT 2971474 A IT2971474 A IT 2971474A IT 1025916 B IT1025916 B IT 1025916B
Authority
IT
Italy
Prior art keywords
frequency shift
correction device
transmission systems
threshold correction
shift modulation
Prior art date
Application number
IT29714/74A
Other languages
English (en)
Italian (it)
Original Assignee
Hoffmann Electronics Corp
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 Hoffmann Electronics Corp filed Critical Hoffmann Electronics Corp
Application granted granted Critical
Publication of IT1025916B publication Critical patent/IT1025916B/it

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
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/148—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radio Transmission System (AREA)
  • Manipulation Of Pulses (AREA)
IT29714/74A 1974-10-23 1974-11-21 Dispositivo di correzione di soglia per sistemi di trasmissione con modulazione a spostamento di frequenza IT1025916B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/517,384 US3947769A (en) 1974-10-23 1974-10-23 Threshold correction system in FSK transmissions

Publications (1)

Publication Number Publication Date
IT1025916B true IT1025916B (it) 1978-08-30

Family

ID=24059588

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29714/74A IT1025916B (it) 1974-10-23 1974-11-21 Dispositivo di correzione di soglia per sistemi di trasmissione con modulazione a spostamento di frequenza

Country Status (6)

Country Link
US (1) US3947769A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS561826B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1024602A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2289076A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1529806A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1025916B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55113911A (en) 1979-02-26 1980-09-02 Nissan Motor Co Ltd Karman vortex flow meter
JPS562728A (en) * 1979-06-21 1981-01-13 Matsushita Electric Ind Co Ltd Binary processing circuit
US4385328A (en) * 1979-10-26 1983-05-24 Sony Corporation Data extracting circuit
DE3008076C2 (de) * 1980-03-03 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur Empfängerabschaltung bei kleinem Signal-Geräusch-Abstand für ein digital moduliertes Funksystem mit Frequenzmodulation
JPS57184356A (en) * 1981-05-08 1982-11-13 Seiko Epson Corp Fsk demodulating circuit
US4459474A (en) * 1981-05-18 1984-07-10 Walton Charles A Identification system with separation and direction capability and improved noise rejection
US4471312A (en) * 1981-06-02 1984-09-11 Texas Instruments Incorporated Integrated circuit demodulator for FSK signals
US4481642A (en) * 1981-06-02 1984-11-06 Texas Instruments Incorporated Integrated circuit FSK modem
US4409593A (en) * 1982-01-11 1983-10-11 General Electric Company Threshold-less collision detection and bit arbitration in a CFSK data system
JPS5952417A (ja) * 1982-09-16 1984-03-27 Toshiba Corp デ−タ抜取回路
JPS59127542A (ja) * 1983-01-10 1984-07-23 東京電力株式会社 位相パルス信号のレベル検定方法
US4531235A (en) * 1983-06-20 1985-07-23 Motorola, Inc. Diversity signal strength indicator and site selection apparatus for using same
US4703476A (en) * 1983-09-16 1987-10-27 Audicom Corporation Encoding of transmitted program material
US4736391A (en) * 1986-07-22 1988-04-05 General Electric Company Threshold control with data receiver
CA1290083C (en) * 1987-06-10 1991-10-01 Grass Valley Group, Inc. (The) Analog "blue" signal detector
WO1989002200A1 (en) * 1987-08-28 1989-03-09 Case/Datatel Adaptive jitter-tracking method and system
US4873700A (en) * 1987-10-14 1989-10-10 National Semiconductor Corporation Auto-threshold/adaptive equalizer
US5036525A (en) * 1987-10-14 1991-07-30 National Semiconductor Corp. Adaptive equalizer
US4926442A (en) * 1988-06-17 1990-05-15 International Business Machines Corporation CMOS signal threshold detector
US5025456A (en) * 1989-02-02 1991-06-18 At&T Bell Laboratories Burst mode digital data receiver
US5052021A (en) * 1989-05-19 1991-09-24 Kabushiki Kaisha Toshiba Digital signal decoding circuit and decoding method
US5132829A (en) * 1989-12-18 1992-07-21 Bell Telephone Laboratories Inc. Tone spacing and power level monitor for fsk lightwave systems
US5121407A (en) * 1990-09-27 1992-06-09 Pittway Corporation Spread spectrum communications system
US5475342A (en) * 1993-04-19 1995-12-12 Nippon Telegraph And Telephone Corporation Amplifier for stably maintaining a constant output
GB9419630D0 (en) * 1994-09-29 1994-11-16 Philips Electronics Uk Ltd Receiver having an adjustable symbol slice demodulator
US6215514B1 (en) * 1997-06-27 2001-04-10 Trilithic, Inc. Ingress monitoring system
JP2009280209A (ja) * 1999-06-23 2009-12-03 Panasonic Corp 自転車スタンド
US6735260B1 (en) * 2000-04-17 2004-05-11 Texas Instruments Incorporated Adaptive data slicer
US7068725B2 (en) * 2000-07-10 2006-06-27 Garmin At, Inc. Bit detection threshold in a TDMA burst communication system
US6968019B2 (en) * 2000-11-27 2005-11-22 Broadcom Corporation IF FSK receiver
US6512799B2 (en) 2001-02-06 2003-01-28 University Of South Alabama Digital communication system and method for increased bit rates
US7061995B2 (en) * 2001-10-31 2006-06-13 Intel Corporation Apparatus and method to generate an adaptive slicer threshold for binary data
EP1313277A1 (en) * 2001-11-16 2003-05-21 Agilent Technologies, Inc. (a Delaware corporation) Method for determining the magnitude of AMI-pulses by calculating the median value
JP2004064196A (ja) * 2002-07-25 2004-02-26 Renesas Technology Corp スライス回路
WO2005071828A1 (en) * 2004-01-22 2005-08-04 The Regents Of The University Of Michigan Demodulatr, chip and method for digitally demodulating an fsk signal
US7792514B2 (en) * 2007-06-08 2010-09-07 Seiko Epson Corporation Envelope detector for AM radio
US8428528B2 (en) * 2007-10-24 2013-04-23 Biotronik Crm Patent Ag Radio communications system designed for a low-power receiver
US8086200B2 (en) * 2007-10-24 2011-12-27 Biotronik Crm Patent Ag Radio communications system designed for a low-power receiver
JP4911209B2 (ja) * 2009-09-15 2012-04-04 横河電機株式会社 タイミング検出装置
US10250418B2 (en) * 2016-08-02 2019-04-02 Keyssa Systems, Inc. EHF receiver architecture with dynamically adjustable discrimination threshold

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476990A (en) * 1944-01-05 1949-07-26 Creed & Co Ltd Automatic gain control
US2999925A (en) * 1959-01-28 1961-09-12 Page Comm Engineers Inc Variable decision threshold computer
GB1074514A (en) * 1963-02-21 1967-07-05 Plessey Uk Ltd Improvements in or relating to telegraph receiving apparatus
US3348153A (en) * 1964-02-17 1967-10-17 Ibm Frequency-shift receiver insensitive to distortion and selective fading
US3473131A (en) * 1965-06-04 1969-10-14 Radiation Inc Level shift correction circuits
US3751636A (en) * 1972-06-01 1973-08-07 Rca Corp Signal transition detection circuit

Also Published As

Publication number Publication date
FR2289076A1 (fr) 1976-05-21
US3947769A (en) 1976-03-30
FR2289076B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-04-28
JPS5148256A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-04-24
DE2456664B2 (de) 1977-06-23
JPS561826B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-01-16
DE2456664A1 (de) 1976-04-29
CA1024602A (en) 1978-01-17
GB1529806A (en) 1978-10-25

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