DE3879138T2 - Digitales vormodulationsfilter. - Google Patents

Digitales vormodulationsfilter.

Info

Publication number
DE3879138T2
DE3879138T2 DE8888202889T DE3879138T DE3879138T2 DE 3879138 T2 DE3879138 T2 DE 3879138T2 DE 8888202889 T DE8888202889 T DE 8888202889T DE 3879138 T DE3879138 T DE 3879138T DE 3879138 T2 DE3879138 T2 DE 3879138T2
Authority
DE
Germany
Prior art keywords
digital pre
modulation filter
modulation
filter
digital
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
DE8888202889T
Other languages
English (en)
Other versions
DE3879138D1 (de
Inventor
Dasler Gerrit Van
Hendrikus Leonardus Verstappen
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE3879138D1 publication Critical patent/DE3879138D1/de
Application granted granted Critical
Publication of DE3879138T2 publication Critical patent/DE3879138T2/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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
DE8888202889T 1987-12-21 1988-12-15 Digitales vormodulationsfilter. Expired - Fee Related DE3879138T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8703084A NL8703084A (nl) 1987-12-21 1987-12-21 Digitaal premodulatiefilter.

Publications (2)

Publication Number Publication Date
DE3879138D1 DE3879138D1 (de) 1993-04-15
DE3879138T2 true DE3879138T2 (de) 1993-09-02

Family

ID=19851122

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888202889T Expired - Fee Related DE3879138T2 (de) 1987-12-21 1988-12-15 Digitales vormodulationsfilter.

Country Status (5)

Country Link
US (1) US5319676A (de)
EP (1) EP0322038B1 (de)
JP (1) JPH01282947A (de)
DE (1) DE3879138T2 (de)
NL (1) NL8703084A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2643762B2 (ja) * 1993-04-12 1997-08-20 日本電気株式会社 ディジタル化直交変調器
US5386202A (en) * 1993-11-03 1995-01-31 Sicom, Inc. Data communication modulation with managed intersymbol interference
US5633893A (en) * 1994-09-29 1997-05-27 Ericsson Inc. Digital modulation method with controlled envelope variation
US5729575A (en) * 1995-06-20 1998-03-17 Motorola, Inc. Transmitter and receiver system and method utilizing a pilot carrier notch data encoded signal
US6373901B1 (en) * 1996-04-04 2002-04-16 Motorola, Inc. Method and apparatus for conditioning modulated signals using window expansion

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141072A (en) * 1976-12-28 1979-02-20 Xerox Corporation Frequency domain automatic equalizer using minimum mean square error correction criteria
NL7709917A (nl) * 1977-09-09 1979-03-13 Philips Nv Systeem voor datatransmissie met behulp van een hoekgemoduleerde draaggolf van constante amplitude.
US4261053A (en) * 1979-04-02 1981-04-07 Satellite Business Systems PSK Modulator with reduced adjacent channel interference
NL189588C (nl) * 1981-04-01 1993-05-17 Philips Nv Zender voor hoekgemoduleerde signalen.
NL8201533A (nl) * 1982-04-13 1983-11-01 Philips Nv Een zender ingericht voor het zenden van fm gemoduleerde signalen.
US4731800A (en) * 1986-10-03 1988-03-15 Hycom Incorporated Raised-cosine filtering for modems
US4757519A (en) * 1987-10-02 1988-07-12 Hewlett-Packard Digital premodulation filter

Also Published As

Publication number Publication date
DE3879138D1 (de) 1993-04-15
NL8703084A (nl) 1989-07-17
EP0322038B1 (de) 1993-03-10
EP0322038A1 (de) 1989-06-28
JPH01282947A (ja) 1989-11-14
US5319676A (en) 1994-06-07

Similar Documents

Publication Publication Date Title
DE3889276D1 (de) Digitaler Vormodulationsfilter.
DE3866096D1 (de) Antiemboliefilter.
DE3851053T2 (de) Fir digitale filteranordnung.
DE3884619D1 (de) Digitaler neigungsmesser.
DE3850646D1 (de) Keramisches Filter.
DE3852888D1 (de) Filteranordnung.
DE68921161D1 (de) Programmierbares digitales Filter.
DE3850990T2 (de) Filterelement.
DE3763929D1 (de) Filtercigarette.
DE3773361D1 (de) Filteranordnung.
DE3881793D1 (de) Digitaler demodulator.
FI880627A (fi) Filter foer crt-bildskaerm.
DE3776631D1 (de) Filteranordnung.
DE3772337D1 (de) Filteranordnung.
DE69018497D1 (de) Digitales Filter.
DE3882802D1 (de) Digitales gitterfilter.
DE3879138T2 (de) Digitales vormodulationsfilter.
NO166612C (no) Sigarettfilter.
DE3867885D1 (de) Digitales zwischenfrequenzfilter.
DE3778078D1 (de) Adaptives digitales filter.
FI890034A (fi) Digital dqpsk-dekodardelkrets.
DE3884212D1 (de) Filterungstechniken.
DE3861780D1 (de) Halbmaskenfoermig ausgebildeter schwebstoffilter.
DE3679190D1 (de) Nichtrekursives digitalfilter.
DE3770996D1 (de) Filteranordnung.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8339 Ceased/non-payment of the annual fee