SG42907A1 - Universal wireless radiotelephone system - Google Patents

Universal wireless radiotelephone system

Info

Publication number
SG42907A1
SG42907A1 SG1996000595A SG1996000595A SG42907A1 SG 42907 A1 SG42907 A1 SG 42907A1 SG 1996000595 A SG1996000595 A SG 1996000595A SG 1996000595 A SG1996000595 A SG 1996000595A SG 42907 A1 SG42907 A1 SG 42907A1
Authority
SG
Singapore
Prior art keywords
radiotelephone system
universal wireless
wireless radiotelephone
universal
wireless
Prior art date
Application number
SG1996000595A
Other languages
English (en)
Inventor
B Waring Partridge Iii
Jesse Eugene Russell
Robert Edward Schroeder
Robert Raymond Miller Iii
Original Assignee
At & T Corp
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
Priority to US08/102,037 priority Critical patent/US5406615A/en
Application filed by At & T Corp filed Critical At & T Corp
Priority to EP94305836A priority patent/EP0700167A1/en
Priority to SG1996000595A priority patent/SG42907A1/en
Priority to FI943686A priority patent/FI943686A/fi
Priority to US08/329,038 priority patent/US5574775A/en
Publication of SG42907A1 publication Critical patent/SG42907A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • 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
    • H04B1/40—Circuits
    • 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
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
SG1996000595A 1993-08-04 1994-08-05 Universal wireless radiotelephone system SG42907A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US08/102,037 US5406615A (en) 1993-08-04 1993-08-04 Multi-band wireless radiotelephone operative in a plurality of air interface of differing wireless communications systems
EP94305836A EP0700167A1 (en) 1993-08-04 1994-08-05 Universal wireless radiotelephone system
SG1996000595A SG42907A1 (en) 1993-08-04 1994-08-05 Universal wireless radiotelephone system
FI943686A FI943686A (fi) 1993-08-04 1994-08-09 Yleispätevä langaton radiopuhelinjärjestelmä
US08/329,038 US5574775A (en) 1993-08-04 1994-10-25 Universal wireless radiotelephone system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/102,037 US5406615A (en) 1993-08-04 1993-08-04 Multi-band wireless radiotelephone operative in a plurality of air interface of differing wireless communications systems
EP94305836A EP0700167A1 (en) 1993-08-04 1994-08-05 Universal wireless radiotelephone system
SG1996000595A SG42907A1 (en) 1993-08-04 1994-08-05 Universal wireless radiotelephone system

Publications (1)

Publication Number Publication Date
SG42907A1 true SG42907A1 (en) 1997-10-17

Family

ID=27236180

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996000595A SG42907A1 (en) 1993-08-04 1994-08-05 Universal wireless radiotelephone system

Country Status (4)

Country Link
US (1) US5406615A (fi)
EP (1) EP0700167A1 (fi)
FI (1) FI943686A (fi)
SG (1) SG42907A1 (fi)

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EP0700167A1 (en) 1996-03-06

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