Tag Archives: multiplexing

Self adaptive power control in wide band code division multiplexing honeycomb system and operation method

Application Number  00129206 Application Date  2000.09.28 Publication Number  1291832 Publication Date  2001.04.18 Priority Information   1999/10/7 US 09/413,991   International Classification  H04B7/005;H04B7/26;H04J13/00   Applicant(s) Name  IBM Corp.   Address     Inventor(s) Name  A.S. Sadry   Patent Agency Code  11038 Patent Agent  wang maohua AbstractA wideband code division multiple access (WCDMA) system includes a base… Read More »

Terminal designs of wavelength-division multiplexing system with online semiconductor optical amplifier

Application Number  00128824 Application Date  2000.09.22 Publication Number  1290083 Publication Date  2001.04.04 Priority Information   1999/9/24 US 09/405,679   International Classification  H04J14/02   Applicant(s) Name  Lucent Technologies Inc.   Address     Inventor(s) Name  S. Benagi;Sun Yan;B.R. Itchenbom   Patent Agency Code  11038 Patent Agent  jiang shixun AbstractSemi-conductor amplifiers may be used in an optical… Read More »

Method for multiplexing transmission information channel in variable position and corresponding application and apparatus

Application Number  00128457 Application Date  2000.11.23 Publication Number  1298261 Publication Date  2001.06.06 Priority Information   1999/11/24 FR 99/14805   International Classification  H04B17/00;H04Q7/20   Applicant(s) Name  Euromitsubishi Telecommunication   Address     Inventor(s) Name  V.A.V. Beletsche   Patent Agency Code  72001 Patent Agent  zou guangxin AbstractThe present invention provides a method for multiplexing several transport channels… Read More »

Code division multichannel multiplexing transmission mode and transmitting and receiving equipment

Application Number  00128328 Application Date  2000.11.24 Publication Number  1298234 Publication Date  2001.06.06 Priority Information   1999/11/29 JP 337403/1999   International Classification  H04J13/00   Applicant(s) Name  Toshiba K.K.   Address     Inventor(s) Name  Komoike Hideo;Serigasawa Mutsumi;Yokoi Tokihiko   Patent Agency Code  11038 Patent Agent  wu lili AbstractThe code division multiplex transmission system according to the… Read More »

Diversity code division multiplexing receiving equipment with only one code division multiplexing receiving part

Application Number: 00119983Application Date: 2000.06.30Publication Number: 1291831Publication Date: 2001.04.18Priority Information: 1999/6/30 JP 184548/99International: H04L1/02;H04B7/02Applicant(s) Name: NEC Corp.Address: Inventor(s) Name: Ogino ToruPatent Agency Code: 72001Patent Agent: wu zengyongAbstract In a diversity CDMA reception apparatus comprising two reception antennas, one of reception levels in two reception antennas is gradually increased during a predetermined time interval while another… Read More »

Method for multiplexing tuner in bidirectional cable system for cable TV

Application Number: 00123436Application Date: 2000.08.16Publication Number: 1338871Publication Date: 2002.03.06Priority Information: International: H04N7/173;H04N7/18Applicant(s) Name: Huanuo Information Technology Co Ltd, BeijingAddress: Inventor(s) Name: Wang BinPatent Agency Code: 72003Patent Agent: chen gongAbstract A method for multiplexing tuner in bidirectional cable TV system is disclosed. The DOCSIS standard is used as transmit data in said TV system. A set… Read More »

Method for correcting timer reference of programs in multiplexing

Application Number: 00123572Application Date: 2000.08.22Publication Number: 1338862Publication Date: 2002.03.06Priority Information: International: H04N5/04Applicant(s) Name: Huawei Technology Co LtdAddress: Inventor(s) Name: Chen Yuepeng;Yao Jun;Peng PengPatent Agency Code: 11127Patent Agent: song zhiqiangAbstract A method for correcting the program timer reference in multiplexing the MPEG-2 streams of data packets includes such steps as determining the fixed delay time of… Read More »

Time division multiplexing channel antenna array system and signal processing method thereof

Application Number: 00124986Application Date: 2000.09.29Publication Number: 1285627Publication Date: 2001.02.28Priority Information: International: G01S3/02;G01S3/16Applicant(s) Name: Qinghua Univ.Address: Inventor(s) Name: Li Yang;Feng Zhenghe;Chen YaqinPatent Agency Code: 11201Patent Agent: liao yuanqiuAbstract The present invention belongs to the field of antenna array design technology for time-division multiplexing channel, including antenna array formed form several antenna units, a MX1 switch array… Read More »

Orthogonal frequency-division multiplexing communication apparatus and propagation path estimating method

Application Number: 00126053Application Date: 2000.08.29Publication Number: 1286541Publication Date: 2001.03.07Priority Information: 1999/8/31 JP 245098/99International: H04J11/00Applicant(s) Name: Matsushita Electric Industrial Co., Ltd.Address: Inventor(s) Name: Imamura OjiPatent Agency Code: 11105Patent Agent: ma yingAbstract A baseband signal obtained from a reception signal is subjected to propagation path distortion compensation using a propagation path estimated value obtained by propagation path… Read More »

Orthogonal frequency-division multiplexing frame synchronization

Application Number: 00126480Application Date: 2000.08.25Publication Number: 1286544Publication Date: 2001.03.07Priority Information: 1999/8/27 GB 9920446.3International: H04J11/00Applicant(s) Name: Mitsubishi Denki K.K.Address: Inventor(s) Name: S. DuncanPatent Agency Code: 72001Patent Agent: wu zengyongAbstract FFT demodulation of OFDM symbols is achieved using a frame synchronisation pulse generated by deriving absolute values of successive complex samples of the OFDM symbol, determining the… Read More »

Apparatus and method for orthogonal frequency division multiplexing communication

Application Number: 00126839Application Date: 2000.09.06Publication Number: 1287421Publication Date: 2001.03.14Priority Information: 1999/9/7 JP 253633/99International: H04J11/00Applicant(s) Name: Matsushita Electric Industrial Co., Ltd.Address: Inventor(s) Name: Suto HiroakiPatent Agency Code: 11105Patent Agent: huang xiaolinAbstract The OFDM reception apparatus according to the present invention comprising:FFT processor for performing a FFT processing on a reception signal;a plurality of demodulators capable of… Read More »

TV supple ment with TV guiding function and multiplexing device embedded with said supplement device

Application Number: 00109562Application Date: 2000.07.05Publication Number: 1288327Publication Date: 2001.03.21Priority Information: International: H04N5/44;H04N7/173Applicant(s) Name: Huaqiao Electronic Enterprise Co., Ltd., XiamenAddress: Inventor(s) Name: Shu Zhongren;Shao Weilie;Zhao ChengwuPatent Agency Code: 35101Patent Agent: zhang songtingAbstract The invention can be used with TV set together and increase program guiding function, watch investigating function and various additive practical functions to the… Read More »

Orthogonal frequency division multiplexing communication apparatus

Application Number: 00104041Application Date: 2000.03.14Publication Number: 1267154Publication Date: 2000.09.20Priority Information: 1999/3/16 JP 070899/99International: H04J11/00Applicant(s) Name: Matsushita Electric Industrial Co., Ltd.Address: Inventor(s) Name: Suto HiroakiPatent Agency Code: 11105Patent Agent: ma yingAbstract The known signal that is transmission data for the pilot carrier is output to multiplier 103 to be subjected to amplitude adjustment (gain control) using… Read More »

Spread spectrum multiaddress system based on orthogonal frequency division multiplexing tech. using directional antenna

Application Number: 00103870Application Date: 2000.03.10Publication Number: 1267153Publication Date: 2000.09.20Priority Information: 1999/3/11 US 09/266,371International: H04J11/00Applicant(s) Name: Lucent Tech. Inc.Address: Inventor(s) Name: R. Laroa;Li Junyi;M. C. VandervinPatent Agency Code: 11038Patent Agent: jiang shixunAbstract A base station within a cell of an orthogonal frequency division multiplexing (OFDM) based spread spectrum multiple access system employs sectorization as a way… Read More »

Spread spectrum multiaddress based on orthogonal frequency division multiplexing tech.

Application Number: 00103869Application Date: 2000.03.10Publication Number: 1267152Publication Date: 2000.09.20Priority Information: 1999/3/11 US 09/267,471International: H04J11/00Applicant(s) Name: Lucent Technologies Inc.Address: Inventor(s) Name: R. Laroa;Li Junyi;M. C. VandervinPatent Agency Code: 11038Patent Agent: jiang shixunAbstract In an orthogonal frequency division multiplexing (OFDM) based spread spectrum multiple access system the entire bandwidth is divided into orthogonal tones, and all of… Read More »

Spread spectrum multiaddress based on orthogonal frequency division multiplexing technique

Application Number: 00103868Application Date: 2000.03.10Publication Number: 1267151Publication Date: 2000.09.20Priority Information: 1999/3/11 US 09/266,370International: H04J11/00Applicant(s) Name: Lucent Technologies Inc.Address: Inventor(s) Name: R. Laroa;Li Junyi;M. C. VandervinPatent Agency Code: 11038Patent Agent: jiang shixunAbstract An orthogonal frequency division multiplexing (OFDM) based spread spectrum multiple access system using offsetting between cells, and in particular, the use of tone offsetting… Read More »