Global Patent Index - EP 0974209 A1

EP 0974209 A1 2000-01-26 - SYSTEM AND METHOD FOR SPECTRALLY SHAPING TRANSMITTED DATA SIGNALS

Title (en)

SYSTEM AND METHOD FOR SPECTRALLY SHAPING TRANSMITTED DATA SIGNALS

Title (de)

VERFAHREN UND GERÄT ZUM SPEKTRALEN FORMEN EINES GESENDETEN DATENSIGNALS

Title (fr)

SYSTEME ET METHODE POUR CONFERER UNE FORME SPECTRALE A DES SIGNAUX DE DONNEES TRANSMIS

Publication

EP 0974209 A1 (EN)

Application

EP 98914478 A

Priority

  • US 9806650 W
  • US 4282697 P
  • US 5231998 A

Abstract (en)

[origin: WO9845970A1] A system transmits digital information bits, which are encoded into a predefined number of signed symbols per frame from a transmitter (40) over a network (46) to a receiver, wherein the transmitted signed symbols have a desired spectral shape; the digital information bits being divided into a first predetermined number of magnitude information bits and a second predetermined number of sign information bits per frame, the transmitter including: a magnitude mapping device (50) for mapping the magnitude information bits to the predefined number of symbols; a sign bit encoder (52) for encoding the sign information bits into the predefined number of encoded symbol sign bits per frame; and a signal point selector (54), responsive to the magnitude mapping device and the sign bit encoder, which combines the symbol magnitudes and the encoded symbol sign bits to form the predefined number of transmitted signed symbols per frame.

IPC 1-7 (main, further and additional classification)

H04B 14/04; H04K 1/10

IPC 8 full level (invention and additional information)

H03M 5/00 (2006.01); H04B 14/04 (2006.01); H04L 25/49 (2006.01); H04L 27/18 (2006.01)

CPC (invention and additional information)

H04B 14/04 (2013.01); H04L 25/4927 (2013.01)

Citation (search report)

See references of WO 9845970A1

Designated contracting state (EPC)

DE ES FI GB SE

EPO simple patent family

WO 9845970 A1 19981015; AU 6882498 A 19981030; BR 9815183 A 20001010; CA 2285073 A1 19981015; CN 1252195 A 20000503; EA 001872 B1 20011022; EA 199900807 A1 20000626; EP 0974209 A1 20000126; IL 131921 D0 20010319; JP 2002501693 A 20020115; KR 20010006101 A 20010126; TW 445733 B 20010711

INPADOC legal status


2004-06-16 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031031

2000-05-31 [RIN1] INVENTOR (CORRECTION)

- Inventor name: EYUBOGLU, M., VEDAT

2000-05-31 [RIN1] INVENTOR (CORRECTION)

- Inventor name: KIM, DAE-YOUNG

2000-05-31 [RIN1] INVENTOR (CORRECTION)

- Inventor name: TUNG,CHIEN-CHENG

2000-01-26 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991108

2000-01-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FI GB SE