ATE204102T1 - Asynchrones modem für variable geschwindigkeiten - Google Patents

Asynchrones modem für variable geschwindigkeiten

Info

Publication number
ATE204102T1
ATE204102T1 AT93902937T AT93902937T ATE204102T1 AT E204102 T1 ATE204102 T1 AT E204102T1 AT 93902937 T AT93902937 T AT 93902937T AT 93902937 T AT93902937 T AT 93902937T AT E204102 T1 ATE204102 T1 AT E204102T1
Authority
AT
Austria
Prior art keywords
frequency
signal
modulated signal
modulator
fsk
Prior art date
Application number
AT93902937T
Other languages
English (en)
Inventor
Robert Frank Marchetto
Todd Alan Stewart
Original Assignee
Glenayre Electronics 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 Glenayre Electronics Inc filed Critical Glenayre Electronics Inc
Application granted granted Critical
Publication of ATE204102T1 publication Critical patent/ATE204102T1/de

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
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • 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
    • H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
    • H04L27/1525—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements using quadrature demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Communication Control (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
AT93902937T 1992-01-22 1993-01-04 Asynchrones modem für variable geschwindigkeiten ATE204102T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/823,842 US5227741A (en) 1992-01-22 1992-01-22 Variable speed asynchronous modem
PCT/US1993/000053 WO1993015551A1 (en) 1992-01-22 1993-01-04 Variable speed asynchronous modem

Publications (1)

Publication Number Publication Date
ATE204102T1 true ATE204102T1 (de) 2001-08-15

Family

ID=25239883

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93902937T ATE204102T1 (de) 1992-01-22 1993-01-04 Asynchrones modem für variable geschwindigkeiten

Country Status (9)

Country Link
US (1) US5227741A (de)
EP (1) EP0623256B1 (de)
KR (1) KR100281430B1 (de)
CN (1) CN1077072A (de)
AT (1) ATE204102T1 (de)
CA (1) CA2126342A1 (de)
DE (1) DE69330554T2 (de)
FI (1) FI943415A7 (de)
WO (1) WO1993015551A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH684860A5 (de) * 1992-04-23 1995-01-13 Haeni Prolectron Ag Verfahren und Schaltungsanordnung zur Uebertragung von binären Datenfolgen.
US5418818A (en) * 1992-09-22 1995-05-23 Glenayre Electronics, Inc. Digital signal processor exciter
US5666378A (en) * 1994-03-18 1997-09-09 Glenayre Electronics, Inc. High performance modem using pilot symbols for equalization and frame synchronization
GB9408321D0 (en) * 1994-04-27 1994-06-15 Philips Electronics Uk Ltd Selective call system and a secondary station for use therein
US5475307A (en) * 1994-07-29 1995-12-12 Pacesetter, Inc. Frequency demodulator and method for asynchronously demodulating sample signals
US5499270A (en) * 1994-08-01 1996-03-12 Pierre Charrier Spectral encoding-decoding system and method thereof
US6049720A (en) * 1996-04-12 2000-04-11 Transcrypt International / E.F. Johnson Company Link delay calculation and compensation system
US5991309A (en) * 1996-04-12 1999-11-23 E.F. Johnson Company Bandwidth management system for a remote repeater network
US5896560A (en) * 1996-04-12 1999-04-20 Transcrypt International/E. F. Johnson Company Transmit control system using in-band tone signalling
US6028891A (en) * 1996-06-25 2000-02-22 Analog Devices, Inc. Asymmetric digital subscriber loop transceiver and method
WO2002084908A2 (en) * 2001-04-13 2002-10-24 Telefonaktiebolaget Lm Ericsson (Publ) Frequency modulation using a zero hz vco
US7158543B1 (en) * 2002-03-29 2007-01-02 Cisco Technology, Inc. V.8bis suppression method and apparatus for modem relay
DE102015213599A1 (de) * 2015-07-20 2017-01-26 Robert Bosch Gmbh Verfahren und Vorrichtung zur Signaluntersuchung
CN108964827B (zh) * 2018-08-17 2020-04-28 盐城工学院 一种基于频移键控的采用cdma技术的近距离无线网络
US20230379638A1 (en) * 2022-05-19 2023-11-23 Sound Furnace, Inc. Real-time binaural audio detection and enhancement
CN116865725A (zh) * 2023-01-09 2023-10-10 深圳曦华科技有限公司 对解调信号的信号处理方法及相关装置和存储介质和程序

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192506B (en) * 1986-07-12 1990-05-30 Stc Plc Demodulation circuit
US5022054A (en) * 1988-11-30 1991-06-04 Motorola, Inc. Digital GMSK modulator with non-integer bit interval handling
US5016259A (en) * 1989-03-03 1991-05-14 The Grass Valley Group, Inc. Low jitter DDFS FSK modulator
GB2234411A (en) * 1989-07-03 1991-01-30 Marconi Instruments Ltd Integrated circuit for digital demodulation
US5105444A (en) * 1989-09-13 1992-04-14 Atlantic Richfield Company System for high speed data tranmission
US5040192A (en) * 1990-02-06 1991-08-13 Hayes Microcomputer Products, Inc. Method and apparatus for optimally autocorrelating an FSK signal

Also Published As

Publication number Publication date
KR100281430B1 (ko) 2001-02-01
DE69330554T2 (de) 2002-06-06
EP0623256A1 (de) 1994-11-09
CN1077072A (zh) 1993-10-06
DE69330554D1 (de) 2001-09-13
KR940704080A (ko) 1994-12-12
WO1993015551A1 (en) 1993-08-05
EP0623256B1 (de) 2001-08-08
FI943415A0 (fi) 1994-07-19
FI943415A7 (fi) 1994-07-19
US5227741A (en) 1993-07-13
EP0623256A4 (en) 1997-05-07
CA2126342A1 (en) 1993-08-05

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Legal Events

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