GB2346522B - Method and apparatus for demapping data - Google Patents

Method and apparatus for demapping data

Info

Publication number
GB2346522B
GB2346522B GB9930694A GB9930694A GB2346522B GB 2346522 B GB2346522 B GB 2346522B GB 9930694 A GB9930694 A GB 9930694A GB 9930694 A GB9930694 A GB 9930694A GB 2346522 B GB2346522 B GB 2346522B
Authority
GB
United Kingdom
Prior art keywords
demapping data
demapping
data
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
GB9930694A
Other versions
GB2346522A (en
GB9930694D0 (en
Inventor
Weon Cheol Lee
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.)
LG Electronics Inc
Original Assignee
LG Electronics 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 LG Electronics Inc filed Critical LG Electronics Inc
Publication of GB9930694D0 publication Critical patent/GB9930694D0/en
Publication of GB2346522A publication Critical patent/GB2346522A/en
Application granted granted Critical
Publication of GB2346522B publication Critical patent/GB2346522B/en
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
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB9930694A 1998-12-26 1999-12-24 Method and apparatus for demapping data Expired - Fee Related GB2346522B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980058901A KR100556467B1 (en) 1998-12-26 1998-12-26 Method and apparatus for demapping

Publications (3)

Publication Number Publication Date
GB9930694D0 GB9930694D0 (en) 2000-02-16
GB2346522A GB2346522A (en) 2000-08-09
GB2346522B true GB2346522B (en) 2001-02-14

Family

ID=19565904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9930694A Expired - Fee Related GB2346522B (en) 1998-12-26 1999-12-24 Method and apparatus for demapping data

Country Status (3)

Country Link
KR (1) KR100556467B1 (en)
DE (1) DE19962162B4 (en)
GB (1) GB2346522B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004025826A1 (en) 2004-05-24 2005-12-22 Micronas Gmbh Method for recovering a bit sequence from QPSK or QAM symbols
KR100783807B1 (en) 2006-05-15 2007-12-10 삼성전자주식회사 Method of dcm demapping and dcm demapper using the same
KR20080105355A (en) * 2007-05-30 2008-12-04 엘지전자 주식회사 Method for signal transmitting and apparatus for the same, method for signal receiving and apparatus for the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5519356A (en) * 1995-02-13 1996-05-21 National Semiconductor Corporation Methods and apparatuses for fast decision directed carrier recovery with wide locking range
US5742643A (en) * 1994-11-22 1998-04-21 Mikros Systems Corporation Quantizing and decoding of phase-amplitude modulated signals in hexagonal code
GB2334862A (en) * 1998-02-27 1999-09-01 Daewoo Electronics Co Ltd Mapping symbol points in a quadrature amplitude modulation
GB2340353A (en) * 1998-05-09 2000-02-16 Lg Electronics Inc Method and device for demapping digital video data

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742533A (en) * 1987-01-02 1988-05-03 Motorola, Inc. Soft decision digital communication apparatus
KR0122749B1 (en) * 1993-12-28 1997-11-17 배순훈 Soft decision method using adaptive quantization

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5742643A (en) * 1994-11-22 1998-04-21 Mikros Systems Corporation Quantizing and decoding of phase-amplitude modulated signals in hexagonal code
US5519356A (en) * 1995-02-13 1996-05-21 National Semiconductor Corporation Methods and apparatuses for fast decision directed carrier recovery with wide locking range
GB2334862A (en) * 1998-02-27 1999-09-01 Daewoo Electronics Co Ltd Mapping symbol points in a quadrature amplitude modulation
GB2340353A (en) * 1998-05-09 2000-02-16 Lg Electronics Inc Method and device for demapping digital video data

Also Published As

Publication number Publication date
GB2346522A (en) 2000-08-09
DE19962162A1 (en) 2000-07-06
KR100556467B1 (en) 2006-05-25
DE19962162B4 (en) 2017-08-03
GB9930694D0 (en) 2000-02-16
KR20000042651A (en) 2000-07-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20171224