DE69429779T2 - Digitale kommunikationseinrichtung unter verwendung einer vierfachen differenzfrequenzumtastung - Google Patents

Digitale kommunikationseinrichtung unter verwendung einer vierfachen differenzfrequenzumtastung

Info

Publication number
DE69429779T2
DE69429779T2 DE69429779T DE69429779T DE69429779T2 DE 69429779 T2 DE69429779 T2 DE 69429779T2 DE 69429779 T DE69429779 T DE 69429779T DE 69429779 T DE69429779 T DE 69429779T DE 69429779 T2 DE69429779 T2 DE 69429779T2
Authority
DE
Germany
Prior art keywords
digital
peak
glitch
digitized
bandwidth
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.)
Expired - Fee Related
Application number
DE69429779T
Other languages
English (en)
Other versions
DE69429779D1 (de
Inventor
Reynolds Sutton
Grau, Jr
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.)
GRAU JUN
Proxim Wireless Corp
Original Assignee
GRAU JUN
Proxim Wireless 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 GRAU JUN, Proxim Wireless Corp filed Critical GRAU JUN
Application granted granted Critical
Publication of DE69429779D1 publication Critical patent/DE69429779D1/de
Publication of DE69429779T2 publication Critical patent/DE69429779T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04L27/144—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
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7156—Arrangements for sequence synchronisation
    • H04B2001/71566—Tracking
DE69429779T 1993-10-15 1994-10-17 Digitale kommunikationseinrichtung unter verwendung einer vierfachen differenzfrequenzumtastung Expired - Fee Related DE69429779T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/136,749 US5412687A (en) 1993-10-15 1993-10-15 Digital communications equipment using differential quaternary frequency shift keying
PCT/US1994/012184 WO1995010893A1 (en) 1993-10-15 1994-10-17 Digital communications equipment using differential quaternary frequency shift keying

Publications (2)

Publication Number Publication Date
DE69429779D1 DE69429779D1 (de) 2002-03-14
DE69429779T2 true DE69429779T2 (de) 2002-10-24

Family

ID=22474200

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69429779T Expired - Fee Related DE69429779T2 (de) 1993-10-15 1994-10-17 Digitale kommunikationseinrichtung unter verwendung einer vierfachen differenzfrequenzumtastung

Country Status (9)

Country Link
US (1) US5412687A (de)
EP (1) EP0723720B1 (de)
JP (1) JPH09505700A (de)
CN (1) CN1074215C (de)
AT (1) ATE212769T1 (de)
AU (1) AU681205B2 (de)
CA (1) CA2174142A1 (de)
DE (1) DE69429779T2 (de)
WO (1) WO1995010893A1 (de)

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Also Published As

Publication number Publication date
JPH09505700A (ja) 1997-06-03
EP0723720A4 (de) 2000-07-05
ATE212769T1 (de) 2002-02-15
CA2174142A1 (en) 1995-04-20
AU681205B2 (en) 1997-08-21
CN1138394A (zh) 1996-12-18
WO1995010893A1 (en) 1995-04-20
US5412687A (en) 1995-05-02
AU8124394A (en) 1995-05-04
EP0723720B1 (de) 2002-01-30
EP0723720A1 (de) 1996-07-31
DE69429779D1 (de) 2002-03-14
CN1074215C (zh) 2001-10-31

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