公开(公告)号：GB2352944A

公开(公告)日：2001-02-07

申请号：GB0013114

申请日：2000-05-31

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE HYUCK-JAE ,  KIM JAE-HEUNG ,  SHIM JAE RYONG ,  CHAE JONG-SUK ,  KIM JUNG-IM ,  LEE NARM-HEE ,  BANG SEUNG-CHAN ,  KIM TAE-JOONG

IPC: H04L27/20 ,  H04B1/707 ,  H04J11/00 ,  H04J13/12 ,  H04J13/20 ,  H04J13/04 ,  H04L27/34

Abstract: The present invention relates to an apparatus and method for modulating data by employing orthogonal variable spreading factor (OVSF) codes in a mobile communication system. A code generating means generates at least one spreading code to be allocated to a channel and is selected such that two consecutive pairs of in-phase (I) and quadrature (Q) data correspond to two points located on the same point in the phase domain (see figure) or are symmetrical with respect to the zero point (see fig. 9) . Data for transmission is then spread using the generated code and phase rotated by a Walsh rotator such that the phase difference between consecutive points is ninety degrees (90{). The ninety degree phase difference leads to a reduction in the peak to average power ratio (PAPR) of a mobile station. Preferably the orthogonal complex quadrature phase shift keying (OCQPSK) modulation scheme is adopted.

公开(公告)号：DE10027216B4

公开(公告)日：2008-10-16

申请号：DE10027216

申请日：2000-05-31

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： BANG SEUNG-CHAN ,  KIM TAE-JOONG ,  KIM JAE-HEUNG ,  KIM JUNG-IM ,  CHAE JONG-SUK ,  LEE HYUCK-JAE ,  SHIM JAE-RYONG ,  LEE NARM-HEE

IPC: H04L27/20 ,  H04B1/707 ,  H04B7/216 ,  H04J11/00 ,  H04J13/12 ,  H04J13/20

公开(公告)号：HK1033522A1

公开(公告)日：2001-08-31

申请号：HK01104144

申请日：2001-06-15

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： BANG SEUNG-CHAN ,  KIM TAE-JOONG ,  KIM JAE-HEUNG ,  KIM JUNG-IM ,  CHAE JONG-SUK ,  LEE HYUCK-JAE ,  SHIM JAE-RYONG ,  LEE NARM-HEE

IPC: H04L27/20 ,  H04B1/707 ,  H04J11/00 ,  H04J13/12 ,  H04J13/20 ,  H04Q ,  H04B

公开(公告)号：EP1836659A4

公开(公告)日：2011-01-19

申请号：EP04808632

申请日：2004-12-29

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： HWANG JAE-GAK ,  CHOI SEONG-HWAN ,  LEE YONG-JOON ,  KIM SUNG-WOOK ,  CHAE JONG-SUK

IPC: G06Q10/00

CPC classification number: G06Q10/06

公开(公告)号：EP2060025A4

公开(公告)日：2012-06-27

申请号：EP06835588

申请日：2006-12-29

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： CHO HAN BYEOG ,  KIM KYONG HO ,  CHAE JONG-SUK ,  YOON CHUL SIK

IPC: H04B7/185 ,  H04B7/204

CPC classification number: H04W88/06 ,  H04W36/14

公开(公告)号：EP1547197A4

公开(公告)日：2005-09-21

申请号：EP03791465

申请日：2003-08-28

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM BYUNG CHAN ,  PARK JUDERK ,  CHOI HYUNG DO ,  CHAE JONG-SUK

IPC: H01Q13/08 ,  H01Q1/24 ,  H01Q9/04

CPC classification number: H01Q1/243 ,  H01Q9/0421

Abstract: A radiation patch having a shape of linearly-tapered rectangle for a planar inverted F antenna is disclosed. The planar inverted F antenna having a radiation patch includes: a ground unit for grounding a radiation patch; a short unit for shorting the radiation patch; a feeding unit for supplying an electric power to the radiation patch; and a radiation patch for radiating electric power from the feeding unit, wherein the radiation patch having a shape of linearly tapered rectangle and a length and width of tapered sides of radiation patch is determined according to a resonate frequency. As mentioned above, the present invention can be easier to be designed and provide wider bandwidth by providing a linearly tapered rectangle shape of radiation patch in a planar inverted F antenna.

公开(公告)号：EP2283452A4

公开(公告)日：2011-06-08

申请号：EP09734081

申请日：2009-04-22

Applicant: KOREA ELECTRONICS TELECOMM ,  CISC SEMICONDUCTOR DESIGN & CONSULTING GMBH

Inventor： KIM HYUNSEOK ,  LEE HEYUNG SUB ,  LEE SANG YEOUN ,  SHIN DONG-BEOM ,  CHOI SU NA ,  SEONG NAK SEON ,  PYO CHEOL SIG ,  CHAE JONG-SUK ,  PREISHUBER-PFLUEGL DI JOSEF ,  JANEK DI ALEX ,  TSCHISCHE DI DAVID

IPC: G06K7/00 ,  G06F21/00

CPC classification number: G06K7/0008 ,  G06K19/0717 ,  G06K19/07749

公开(公告)号：EP2244205A4

公开(公告)日：2011-04-27

申请号：EP09710052

申请日：2009-02-12

Applicant: KOREA ELECTRONICS TELECOMM ,  CISC SEMICONDUCTOR DESIGN & CONSULTING GMBH

Inventor： KIM HYUNSEOK ,  SEONG NAK-SEON ,  JUNG JAE-YOUNG ,  LEE HEYUNG-SUB ,  PYO CHEOL-SIG ,  CHAE JONG-SUK ,  PREISHUBER-PFLUEGL JOSEF ,  TSCHISCHE DAVID

IPC: G06K7/00

CPC classification number: G06K7/0008 ,  G06K7/10297 ,  G06K19/0723

公开(公告)号：EP2074539A4

公开(公告)日：2011-03-16

申请号：EP07833306

申请日：2007-10-12

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE EUN-JU ,  RYU JAE-HONG ,  JIN GWANG-JA ,  KIM YOUNG-MIN ,  KIM BONG-SOO ,  PYO CHEOL-SIG ,  CHAE JONG-SUK

IPC: G07C9/00 ,  G06F19/00

CPC classification number: G08G1/005 ,  G07C9/00103 ,  G07C9/00111