WO2005004424A8 - An apparatus and method for code modulating digital signal - Google Patents

An apparatus and method for code modulating digital signal

Info

Publication number
WO2005004424A8
WO2005004424A8 PCT/CN2003/000600 CN0300600W WO2005004424A8 WO 2005004424 A8 WO2005004424 A8 WO 2005004424A8 CN 0300600 W CN0300600 W CN 0300600W WO 2005004424 A8 WO2005004424 A8 WO 2005004424A8
Authority
WO
WIPO (PCT)
Prior art keywords
waveform
fundamental wave
frequency
controller
digital signal
Prior art date
Application number
PCT/CN2003/000600
Other languages
French (fr)
Chinese (zh)
Other versions
WO2005004424A3 (en
WO2005004424A2 (en
Inventor
Jianguo Ye
Original Assignee
Jianguo Ye
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 Jianguo Ye filed Critical Jianguo Ye
Priority to AU2003257775A priority Critical patent/AU2003257775A1/en
Publication of WO2005004424A2 publication Critical patent/WO2005004424A2/en
Publication of WO2005004424A3 publication Critical patent/WO2005004424A3/en
Publication of WO2005004424A8 publication Critical patent/WO2005004424A8/en

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
    • 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
    • H04L27/12—Modulator circuits; Transmitter circuits

Abstract

The invention discloses an apparatus for code modulating digital signal. The appartus can tridimensionally code modulate the digital signal which needs to transmit, it comprises: characteristic fundamental wave frequency controller fi(t), characteristic fundamental wave waveform controller Zm, characteristic fundamental wave amplitude controller Vr(t), frequency and waveform controlled fundamental wave generator, D/A converter and buffering-gain controlled amplifier. In which, under controlling of characteristic fundamental wave frequency controller f(t) and characteristic fundamental wave waveform controller Zm, the frequency and waveform controlled fundamental wave generator generates frequency-modulation and waveform­ modulation(modulating waveform) signal Zm,f = Π Zm {2Πf i (t)}. Then by using the D/A converter, the frequency and waveform controlled fundamental wave generator converts the digital signal expressed by frequency-modulation and waveform-modulation(modulating-waveform) signal Zm,f into analog signal. At last under controlling of characteristic fundamental wave amplitude controller Vr(t), the buffering-gain controlled amplifier amplitude modulates the analog signal Zm,f outputted by D/A converter so as to form modulated characteristic fundamental-wave signal output. In addition, the invention also discloses a method for code modulating the digital signal.
PCT/CN2003/000600 2003-07-01 2003-07-28 An apparatus and method for code modulating digital signal WO2005004424A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003257775A AU2003257775A1 (en) 2003-07-01 2003-07-28 An apparatus and method for code modulating digital signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 03148201 CN1259791C (en) 2003-07-01 2003-07-01 Modulating device and method for digital signal coding
CN03148201.5 2003-07-01

Publications (3)

Publication Number Publication Date
WO2005004424A2 WO2005004424A2 (en) 2005-01-13
WO2005004424A3 WO2005004424A3 (en) 2005-03-24
WO2005004424A8 true WO2005004424A8 (en) 2005-04-28

Family

ID=29786029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2003/000600 WO2005004424A2 (en) 2003-07-01 2003-07-28 An apparatus and method for code modulating digital signal

Country Status (3)

Country Link
CN (1) CN1259791C (en)
AU (1) AU2003257775A1 (en)
WO (1) WO2005004424A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9109831B2 (en) 2007-07-11 2015-08-18 AIR LIQUIDE GLOBAL E&C SOLUTIONS US Inc. Process and apparatus for the separation of a gaseous mixture
EP2530866B1 (en) 2009-03-27 2017-07-26 Sony Corporation Division of bit streams to produce spatial paths for multicarrier transmission

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121412A (en) * 1989-01-03 1992-06-09 Motorola, Inc. All-digital quadrature modulator
US5146473A (en) * 1989-08-14 1992-09-08 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system

Also Published As

Publication number Publication date
CN1469608A (en) 2004-01-21
CN1259791C (en) 2006-06-14
WO2005004424A3 (en) 2005-03-24
AU2003257775A1 (en) 2005-01-21
WO2005004424A2 (en) 2005-01-13

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