NL194632B - Abonnee-eenheid voor een draadloos digitaal telefooncommunicatiesysteem. - Google Patents

Abonnee-eenheid voor een draadloos digitaal telefooncommunicatiesysteem.

Info

Publication number
NL194632B
NL194632B NL9700007A NL9700007A NL194632B NL 194632 B NL194632 B NL 194632B NL 9700007 A NL9700007 A NL 9700007A NL 9700007 A NL9700007 A NL 9700007A NL 194632 B NL194632 B NL 194632B
Authority
NL
Netherlands
Prior art keywords
communication system
subscriber unit
telephone communication
wireless digital
digital telephone
Prior art date
Application number
NL9700007A
Other languages
English (en)
Other versions
NL9700007A (nl
NL194632C (nl
Inventor
David Norton Critchlow
Moshe Yehushua
Graham Martin Avis
Wade Lyle Heimbigner
Karle Joseph Johnson
George Alan Wiley
Original Assignee
Interdigital Tech 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 US07/394,497 external-priority patent/US5008900A/en
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Priority to NL9700007A priority Critical patent/NL194632C/nl
Publication of NL9700007A publication Critical patent/NL9700007A/nl
Publication of NL194632B publication Critical patent/NL194632B/nl
Application granted granted Critical
Publication of NL194632C publication Critical patent/NL194632C/nl

Links

Classifications

    • 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
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2092—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner with digital generation of the modulated carrier (does not include the modulation of a digitally generated carrier)
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • 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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • 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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03477—Tapped delay lines not time-recursive

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
NL9700007A 1989-08-14 1997-08-26 Abonnee-eenheid voor een draadloos digitaal telefooncommunicatiesysteem. NL194632C (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL9700007A NL194632C (nl) 1989-08-14 1997-08-26 Abonnee-eenheid voor een draadloos digitaal telefooncommunicatiesysteem.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US07/394,497 US5008900A (en) 1989-08-14 1989-08-14 Subscriber unit for wireless digital subscriber communication system
US39449789 1989-08-14
NL9001816 1990-08-13
NL9001816A NL193013C (nl) 1989-08-14 1990-08-13 Abonnee-eenheid voor een draadloos digitaal communicatiesysteem.
NL9700007A NL194632C (nl) 1989-08-14 1997-08-26 Abonnee-eenheid voor een draadloos digitaal telefooncommunicatiesysteem.
NL9700007 1997-08-26

Publications (3)

Publication Number Publication Date
NL9700007A NL9700007A (nl) 1997-12-01
NL194632B true NL194632B (nl) 2002-05-01
NL194632C NL194632C (nl) 2002-09-03

Family

ID=26646732

Family Applications (2)

Application Number Title Priority Date Filing Date
NL9700007A NL194632C (nl) 1989-08-14 1997-08-26 Abonnee-eenheid voor een draadloos digitaal telefooncommunicatiesysteem.
NL9700008A NL194631C (nl) 1989-08-14 1997-08-26 Abonnee-eenheid voor het verwerken van communicatiesignalen in een draadloos telecommunicatiesysteem.

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL9700008A NL194631C (nl) 1989-08-14 1997-08-26 Abonnee-eenheid voor het verwerken van communicatiesignalen in een draadloos telecommunicatiesysteem.

Country Status (1)

Country Link
NL (2) NL194632C (nl)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8505527D0 (en) * 1985-03-04 1985-04-03 Digital Equipment Corp Digitally implemented modulators
EP0235264A4 (en) * 1985-09-03 1990-02-26 Motorola Inc DIGITAL RADIO RECEIVER.
US4825448A (en) * 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system

Also Published As

Publication number Publication date
NL9700008A (nl) 1997-12-01
NL194631B (nl) 2002-05-01
NL9700007A (nl) 1997-12-01
NL194632C (nl) 2002-09-03
NL194631C (nl) 2002-09-03

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V4 Lapsed because of reaching the maximum lifetime of a patent

Effective date: 20100813