IL131921A0 - System and method for spectrally shaping transmitted data signals - Google Patents

System and method for spectrally shaping transmitted data signals

Info

Publication number
IL131921A0
IL131921A0 IL13192198A IL13192198A IL131921A0 IL 131921 A0 IL131921 A0 IL 131921A0 IL 13192198 A IL13192198 A IL 13192198A IL 13192198 A IL13192198 A IL 13192198A IL 131921 A0 IL131921 A0 IL 131921A0
Authority
IL
Israel
Prior art keywords
data signals
transmitted data
spectrally shaping
shaping transmitted
spectrally
Prior art date
Application number
IL13192198A
Other languages
English (en)
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 IL131921A0 publication Critical patent/IL131921A0/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H04L25/4927—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using levels matched to the quantisation levels of the channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Dc Digital Transmission (AREA)
IL13192198A 1997-04-08 1998-04-03 System and method for spectrally shaping transmitted data signals IL131921A0 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US4282697P 1997-04-08 1997-04-08
US5231998A 1998-03-31 1998-03-31
PCT/US1998/006650 WO1998045970A1 (en) 1997-04-08 1998-04-03 System and method for spectrally shaping transmitted data signals

Publications (1)

Publication Number Publication Date
IL131921A0 true IL131921A0 (en) 2001-03-19

Family

ID=26719663

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13192198A IL131921A0 (en) 1997-04-08 1998-04-03 System and method for spectrally shaping transmitted data signals

Country Status (11)

Country Link
EP (1) EP0974209A1 (de)
JP (1) JP2002501693A (de)
KR (1) KR20010006101A (de)
CN (1) CN1252195A (de)
AU (1) AU6882498A (de)
BR (1) BR9815183A (de)
CA (1) CA2285073A1 (de)
EA (1) EA001872B1 (de)
IL (1) IL131921A0 (de)
TW (1) TW445733B (de)
WO (1) WO1998045970A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5999109A (en) 1997-06-09 1999-12-07 3Com Corporation Frame-based spectral shaping method and apparatus
EP1129554B1 (de) * 1998-11-14 2004-02-04 STMicroelectronics Asia Pacific Pte Ltd. Verfahren zur effizienten durchführung einer treillisbasierten spektralformung mit vorhersage
AU1250101A (en) * 1999-08-31 2001-03-26 Broadcom Corporation Subdimensional single-carrier modulation
US6778611B1 (en) 1999-08-31 2004-08-17 Broadcom Corporation Subdimensional single-carrier modulation
US6418170B1 (en) * 2000-02-07 2002-07-09 Motorola, Inc. Method and apparatus for achieving 180° phase invariant transmission in a PCM modem system
US6434190B1 (en) 2000-02-10 2002-08-13 Texas Instruments Incorporated Generalized precoder for the upstream voiceband modem channel
US6973579B2 (en) * 2002-05-07 2005-12-06 Interdigital Technology Corporation Generation of user equipment identification specific scrambling code for the high speed shared control channel
TWI411298B (zh) * 2009-03-05 2013-10-01 Realtek Semiconductor Corp Frequency conversion device and conversion method and filter thereof
US11418220B2 (en) 2020-03-20 2022-08-16 Huawei Technologies Co., Ltd. Method, system, and apparatus for a segmented polarization-adjusted convolutional (PAC) code

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040191A (en) * 1987-02-24 1991-08-13 Codex Corporation Partial response channel signaling systems
US5150381A (en) * 1989-02-16 1992-09-22 Codex Corporation Trellis shaping for modulation systems
US5548615A (en) * 1993-05-03 1996-08-20 At&T Corp. Methods and apparatus for rotationally invariant multilevel coding
US5608397A (en) * 1995-08-15 1997-03-04 Lucent Technologies Inc. Method and apparatus for generating DC-free sequences

Also Published As

Publication number Publication date
EA001872B1 (ru) 2001-10-22
JP2002501693A (ja) 2002-01-15
CA2285073A1 (en) 1998-10-15
TW445733B (en) 2001-07-11
EA199900807A1 (ru) 2000-06-26
AU6882498A (en) 1998-10-30
BR9815183A (pt) 2000-10-10
KR20010006101A (ko) 2001-01-26
CN1252195A (zh) 2000-05-03
WO1998045970A1 (en) 1998-10-15
EP0974209A1 (de) 2000-01-26

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