DE3687249T2 - Zur synchronisationsherstellung in einem uebergangszustand geeignetes demodulationssystem. - Google Patents

Zur synchronisationsherstellung in einem uebergangszustand geeignetes demodulationssystem.

Info

Publication number
DE3687249T2
DE3687249T2 DE8686111275T DE3687249T DE3687249T2 DE 3687249 T2 DE3687249 T2 DE 3687249T2 DE 8686111275 T DE8686111275 T DE 8686111275T DE 3687249 T DE3687249 T DE 3687249T DE 3687249 T2 DE3687249 T2 DE 3687249T2
Authority
DE
Germany
Prior art keywords
system suitable
demodulation system
transitional state
synchronization production
synchronization
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
DE8686111275T
Other languages
English (en)
Other versions
DE3687249D1 (de
Inventor
Yasuharu Yoshida
Masato Tahara
Manabu Yagi
Toru Matsuura
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.)
NEC Corp
Original Assignee
NEC 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
Priority claimed from JP60178504A external-priority patent/JPH0740679B2/ja
Priority claimed from JP60178501A external-priority patent/JP2526540B2/ja
Priority claimed from JP60178502A external-priority patent/JPH0746790B2/ja
Priority claimed from JP60178503A external-priority patent/JP2534650B2/ja
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE3687249D1 publication Critical patent/DE3687249D1/de
Application granted granted Critical
Publication of DE3687249T2 publication Critical patent/DE3687249T2/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
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
DE8686111275T 1985-08-15 1986-08-14 Zur synchronisationsherstellung in einem uebergangszustand geeignetes demodulationssystem. Expired - Fee Related DE3687249T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP60178504A JPH0740679B2 (ja) 1985-08-15 1985-08-15 デイジタル復調システム
JP60178501A JP2526540B2 (ja) 1985-08-15 1985-08-15 搬送波同期回路
JP60178502A JPH0746790B2 (ja) 1985-08-15 1985-08-15 復調システム
JP60178503A JP2534650B2 (ja) 1985-08-15 1985-08-15 復調装置

Publications (2)

Publication Number Publication Date
DE3687249D1 DE3687249D1 (de) 1993-01-21
DE3687249T2 true DE3687249T2 (de) 1993-04-15

Family

ID=27474830

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686111275T Expired - Fee Related DE3687249T2 (de) 1985-08-15 1986-08-14 Zur synchronisationsherstellung in einem uebergangszustand geeignetes demodulationssystem.

Country Status (5)

Country Link
US (1) US4757266A (de)
EP (1) EP0212582B1 (de)
AU (1) AU584555B2 (de)
CA (1) CA1262266A (de)
DE (1) DE3687249T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU589084B2 (en) * 1986-02-08 1989-09-28 Nec Corporation Multilevel modulator capable of producing a composite modulated signal comprising a quadrature amplitude modulated component and a phase modulated component
GB2207582B (en) * 1987-07-30 1991-04-24 Stc Plc Phase error correction and carrier recovery
US4859956A (en) * 1987-10-30 1989-08-22 Nec Corporation Validity decision circuit capable of correctly deciding validity of an error signal in a multilevel quadrature amplitude demodulator
US4849991A (en) * 1988-06-29 1989-07-18 Bell Communications Research, Inc. Method and circuitry for determining symbol timing for time division multiple access radio systems
US4879728A (en) * 1989-01-31 1989-11-07 American Telephone And Telegraph Company, At&T Bell Laboratories DPSK carrier acquisition and tracking arrangement
JP2771365B2 (ja) * 1991-09-30 1998-07-02 福島日本電気株式会社 搬送波再生回路
GB2323505B (en) * 1994-03-18 1998-11-04 Fujitsu Ltd Radio receiver for use in the reception of digital multiplexing signals
JP2911773B2 (ja) * 1994-03-18 1999-06-23 富士通株式会社 ディジタル多重無線受信装置
US8608088B2 (en) * 2007-12-05 2013-12-17 Wavelogics Ab Data carrier device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5925500B2 (ja) * 1978-03-03 1984-06-18 日本電気株式会社 搬送波再生回路

Also Published As

Publication number Publication date
EP0212582A3 (en) 1989-02-08
US4757266A (en) 1988-07-12
DE3687249D1 (de) 1993-01-21
AU584555B2 (en) 1989-05-25
AU6119886A (en) 1987-02-19
EP0212582A2 (de) 1987-03-04
CA1262266A (en) 1989-10-10
EP0212582B1 (de) 1992-12-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee