IT1284306B1 - UPWARD CONVERTER / DIGIATAL MULTIPLE ACCESS MODULATOR AND RELATED PROCEDURE - Google Patents

UPWARD CONVERTER / DIGIATAL MULTIPLE ACCESS MODULATOR AND RELATED PROCEDURE

Info

Publication number
IT1284306B1
IT1284306B1 IT96RM000188A ITRM960188A IT1284306B1 IT 1284306 B1 IT1284306 B1 IT 1284306B1 IT 96RM000188 A IT96RM000188 A IT 96RM000188A IT RM960188 A ITRM960188 A IT RM960188A IT 1284306 B1 IT1284306 B1 IT 1284306B1
Authority
IT
Italy
Prior art keywords
digiatal
multiple access
related procedure
access modulator
upward converter
Prior art date
Application number
IT96RM000188A
Other languages
Italian (it)
Inventor
Yuda Yehuda Luz
Alan Patrick Rottinghaus
Daniel Morris Lurey
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of ITRM960188A0 publication Critical patent/ITRM960188A0/it
Publication of ITRM960188A1 publication Critical patent/ITRM960188A1/en
Application granted granted Critical
Publication of IT1284306B1 publication Critical patent/IT1284306B1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
IT96RM000188A 1995-04-03 1996-03-25 UPWARD CONVERTER / DIGIATAL MULTIPLE ACCESS MODULATOR AND RELATED PROCEDURE IT1284306B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41538795A 1995-04-03 1995-04-03

Publications (3)

Publication Number Publication Date
ITRM960188A0 ITRM960188A0 (en) 1996-03-25
ITRM960188A1 ITRM960188A1 (en) 1997-09-25
IT1284306B1 true IT1284306B1 (en) 1998-05-18

Family

ID=23645488

Family Applications (1)

Application Number Title Priority Date Filing Date
IT96RM000188A IT1284306B1 (en) 1995-04-03 1996-03-25 UPWARD CONVERTER / DIGIATAL MULTIPLE ACCESS MODULATOR AND RELATED PROCEDURE

Country Status (17)

Country Link
JP (1) JPH10501674A (en)
KR (1) KR100210633B1 (en)
CN (1) CN1064794C (en)
AU (1) AU695320B2 (en)
BR (1) BR9605951A (en)
CA (1) CA2191098C (en)
DE (1) DE19680328T1 (en)
FI (1) FI964824A (en)
FR (1) FR2732535B1 (en)
GB (1) GB2304262A (en)
IL (1) IL117369A0 (en)
IT (1) IT1284306B1 (en)
MX (1) MX9606016A (en)
PL (1) PL180753B1 (en)
SE (1) SE519826C2 (en)
TW (1) TW287335B (en)
WO (1) WO1996031942A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6034969A (en) * 1998-05-26 2000-03-07 Motorola, Inc. Method and system for cross frame transmit combining of transmit signals
JP5414484B2 (en) * 2009-12-01 2014-02-12 三菱電機株式会社 Fourier transform circuit, receiver and Fourier transform method
US8174441B2 (en) * 2010-06-01 2012-05-08 Mediatek Inc. Configurable calculating circuit and receiver having a plurality of configurable calculating circuits
CN102147473B (en) * 2010-12-17 2012-09-26 航天恒星科技有限公司 Common-frequency multi-system satellite navigation signal generation system
CN110995334B (en) * 2019-12-02 2022-04-19 西安航天天绘数据技术有限公司 Space-based frequency hopping data chain system with multi-channel parallel processing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462001A (en) * 1982-02-22 1984-07-24 Canadian Patents & Development Limited Baseband linearizer for wideband, high power, nonlinear amplifiers
GB2135844B (en) * 1983-02-21 1986-08-28 Nippon Telegraph & Telephone Oscillator with variable frequency and phase
EP0216803B1 (en) * 1985-04-04 1993-03-31 Motorola, Inc. Digital zero-if selectivity section
SE463390B (en) * 1989-03-13 1990-11-12 Ericsson Telefon Ab L M VAAGFORMSGENERATOR
US5008900A (en) * 1989-08-14 1991-04-16 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
US5111163A (en) * 1991-05-06 1992-05-05 Hughes Aircraft Company Digital FM modulator
US5351016A (en) * 1993-05-28 1994-09-27 Ericsson Ge Mobile Communications Inc. Adaptively self-correcting modulation system and method
US5412351A (en) * 1993-10-07 1995-05-02 Nystrom; Christian Quadrature local oscillator network
US5386202A (en) * 1993-11-03 1995-01-31 Sicom, Inc. Data communication modulation with managed intersymbol interference
US5412352A (en) * 1994-04-18 1995-05-02 Stanford Telecommunications, Inc. Modulator having direct digital synthesis for broadband RF transmission

Also Published As

Publication number Publication date
TW287335B (en) 1996-10-01
KR100210633B1 (en) 1999-07-15
CN1149941A (en) 1997-05-14
ITRM960188A0 (en) 1996-03-25
GB9624183D0 (en) 1997-01-08
KR970703644A (en) 1997-07-03
CA2191098C (en) 2000-05-02
SE9604433D0 (en) 1996-12-02
WO1996031942A1 (en) 1996-10-10
DE19680328T1 (en) 1997-07-31
AU695320B2 (en) 1998-08-13
PL180753B1 (en) 2001-04-30
FI964824A0 (en) 1996-12-02
ITRM960188A1 (en) 1997-09-25
CA2191098A1 (en) 1996-10-10
GB2304262A (en) 1997-03-12
FI964824A (en) 1996-12-02
PL317897A1 (en) 1997-04-28
MX9606016A (en) 1997-12-31
BR9605951A (en) 1997-08-19
SE519826C2 (en) 2003-04-15
IL117369A0 (en) 1996-07-23
FR2732535A1 (en) 1996-10-04
JPH10501674A (en) 1998-02-10
AU5356696A (en) 1996-10-23
FR2732535B1 (en) 2002-11-29
SE9604433L (en) 1996-12-02
CN1064794C (en) 2001-04-18

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990331