DE69630894D1 - Magnetische kommunikationssystem mit geringer reichweite - Google Patents

Magnetische kommunikationssystem mit geringer reichweite

Info

Publication number
DE69630894D1
DE69630894D1 DE69630894T DE69630894T DE69630894D1 DE 69630894 D1 DE69630894 D1 DE 69630894D1 DE 69630894 T DE69630894 T DE 69630894T DE 69630894 T DE69630894 T DE 69630894T DE 69630894 D1 DE69630894 D1 DE 69630894D1
Authority
DE
Germany
Prior art keywords
inductive coupling
base unit
communication system
long range
magnetic field
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 - Lifetime
Application number
DE69630894T
Other languages
English (en)
Other versions
DE69630894T2 (de
Inventor
Vincent Palmero
J Cobler
R Butler
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.)
Aura Communications Inc
Original Assignee
Aura Communications 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 Aura Communications Inc filed Critical Aura Communications Inc
Publication of DE69630894D1 publication Critical patent/DE69630894D1/de
Application granted granted Critical
Publication of DE69630894T2 publication Critical patent/DE69630894T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H04B5/48—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
    • H04M1/6066—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone including a wireless connection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/385—Transceivers carried on the body, e.g. in helmets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive loop type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/737—Characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
DE69630894T 1995-05-18 1996-05-17 Magnetisches kommunikationssystem mit geringer reichweite Expired - Lifetime DE69630894T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US44401795A 1995-05-18 1995-05-18
US444017 1995-05-18
PCT/US1996/007144 WO1996037052A1 (en) 1995-05-18 1996-05-17 Short-range magnetic communication system

Publications (2)

Publication Number Publication Date
DE69630894D1 true DE69630894D1 (de) 2004-01-08
DE69630894T2 DE69630894T2 (de) 2004-09-02

Family

ID=23763148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69630894T Expired - Lifetime DE69630894T2 (de) 1995-05-18 1996-05-17 Magnetisches kommunikationssystem mit geringer reichweite

Country Status (9)

Country Link
US (4) US5771438A (de)
EP (1) EP0872032B1 (de)
JP (1) JPH11505395A (de)
KR (1) KR19990014897A (de)
CN (1) CN1178406C (de)
AT (1) ATE255300T1 (de)
CA (1) CA2221364A1 (de)
DE (1) DE69630894T2 (de)
WO (1) WO1996037052A1 (de)

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CA2221364A1 (en) 1996-11-21
US7254366B2 (en) 2007-08-07
US5771438A (en) 1998-06-23
MX9708893A (es) 1998-03-31
KR19990014897A (ko) 1999-02-25
WO1996037052A1 (en) 1996-11-21
EP0872032B1 (de) 2003-11-26
DE69630894T2 (de) 2004-09-02
US6459882B1 (en) 2002-10-01
CN1178406C (zh) 2004-12-01
US20050164636A1 (en) 2005-07-28
ATE255300T1 (de) 2003-12-15
CN1190506A (zh) 1998-08-12
JPH11505395A (ja) 1999-05-18
EP0872032A1 (de) 1998-10-21
US20030050011A1 (en) 2003-03-13

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