CA2575981A1 - Multiplexage a division de distance - Google Patents

Multiplexage a division de distance Download PDF

Info

Publication number: CA2575981A1
Authority: CA; Canada
Prior art keywords: sources; subband; signals; cndot; signal
Prior art date: 2004-08-24
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.): Granted

Application number

CA002575981A

Other languages

English (en)

Other versions

CA2575981C (fr

Inventor

Venkata Guruprasad

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.)

Individual

Original Assignee

Individual

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.)

2004-08-24

Filing date

2005-06-15

Publication date

2006-03-02

2005-03-01 Priority claimed from US11/069,152 external-priority patent/US7106801B1/en

2005-06-15 Application filed by Individual filed Critical Individual

2006-03-02 Publication of CA2575981A1 publication Critical patent/CA2575981A1/fr

2013-10-29 Application granted granted Critical

2013-10-29 Publication of CA2575981C publication Critical patent/CA2575981C/fr

2025-06-15 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

238000001228 spectrum Methods 0.000 claims abstract description 70
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Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Noise Elimination (AREA)
Circuits Of Receivers In General (AREA)
Radar Systems Or Details Thereof (AREA)
Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

CA2575981A 2004-08-24 2005-06-15 Multiplexage a division de distance Expired - Fee Related CA2575981C (fr)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
US60368804P	2004-08-24	2004-08-24
US60/603,688		2004-08-24
US11/069,152		2005-03-01
US11/069,152 US7106801B1 (en)	2005-03-01	2005-03-01	Distance division multiplexing
PCT/US2005/021082 WO2006023012A2 (fr)	2004-08-24	2005-06-15	Multiplexage a division de distance

Publications (2)

Publication Number	Publication Date
CA2575981A1 true CA2575981A1 (fr)	2006-03-02
CA2575981C CA2575981C (fr)	2013-10-29

Family

ID=35968006

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA2575981A Expired - Fee Related CA2575981C (fr)	2004-08-24	2005-06-15	Multiplexage a division de distance

Country Status (4)

Country	Link
EP (1)	EP1782593A4 (fr)
JP (1)	JP4824026B2 (fr)
CA (1)	CA2575981C (fr)
WO (1)	WO2006023012A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8903670B2 (en) *	2005-07-13	2014-12-02	Venkata Guruprasad	Distance-dependent spectra with uniform sampling spectrometry
EP2929142A4 (fr) *	2012-12-07	2016-07-27	Evolution Engineering Inc	Procédé et appareil pour télémétrie électromagnétique de fond de trou à canaux multiples
US9803473B2 (en)	2015-10-23	2017-10-31	Schlumberger Technology Corporation	Downhole electromagnetic telemetry receiver

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ZA965340B (en) *	1995-06-30	1997-01-27	Interdigital Tech Corp	Code division multiple access (cdma) communication system
JP3397282B2 (ja) *	1995-08-14	2003-04-14	日本電信電話株式会社	周波数帯域分割型反響消去装置
ES2386279T3 (es) *	1996-06-27	2012-08-16	Interdigital Technology Corporation	Unidad de abonado y método para controlar la potencia de transmisión durante el establecimiento de un canal en un sistema de comunicación de AMDC
EP0831598B1 (fr) *	1996-09-20	2000-07-26	Siemens Aktiengesellschaft	Système à diversité de polarisation pour communications mobiles avec configuration adaptative des caractéristiques de rayonnement
US7180580B2 (en) *	2004-07-02	2007-02-20	Venkata Guruprasad	Passive distance measurement using spectral phase gradients

2005
- 2005-06-15 WO PCT/US2005/021082 patent/WO2006023012A2/fr not_active Ceased
- 2005-06-15 CA CA2575981A patent/CA2575981C/fr not_active Expired - Fee Related
- 2005-06-15 JP JP2007529836A patent/JP4824026B2/ja not_active Expired - Fee Related
- 2005-06-15 EP EP05760863A patent/EP1782593A4/fr not_active Withdrawn

Also Published As

Publication number	Publication date
CA2575981C (fr)	2013-10-29
EP1782593A2 (fr)	2007-05-09
EP1782593A4 (fr)	2013-03-27
JP2008511250A (ja)	2008-04-10
WO2006023012A3 (fr)	2006-04-06
JP4824026B2 (ja)	2011-11-24
WO2006023012A2 (fr)	2006-03-02

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Legal Events

Date	Code	Title	Description
2010-06-09	EEER	Examination request
2023-01-26	MKLA	Lapsed	Effective date: 20210615