GB9927503D0 - A transceiver - Google Patents

A transceiver

Info

Publication number
GB9927503D0
GB9927503D0 GBGB9927503.4A GB9927503A GB9927503D0 GB 9927503 D0 GB9927503 D0 GB 9927503D0 GB 9927503 A GB9927503 A GB 9927503A GB 9927503 D0 GB9927503 D0 GB 9927503D0
Authority
GB
United Kingdom
Prior art keywords
transceiver
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.)
Withdrawn
Application number
GBGB9927503.4A
Other versions
GB2344724A (en
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.)
Central Research Laboratories Ltd
Original Assignee
Central Research Laboratories Ltd
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 Central Research Laboratories Ltd filed Critical Central Research Laboratories Ltd
Publication of GB9927503D0 publication Critical patent/GB9927503D0/en
Publication of GB2344724A publication Critical patent/GB2344724A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/0096—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 where a full band is frequency converted into another full 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H04B1/28—Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
GB9927503A 1998-11-19 1999-11-19 Transceiver operable in two frequency bands Withdrawn GB2344724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9825412.1A GB9825412D0 (en) 1998-11-19 1998-11-19 A transceiver

Publications (2)

Publication Number Publication Date
GB9927503D0 true GB9927503D0 (en) 2000-01-19
GB2344724A GB2344724A (en) 2000-06-14

Family

ID=10842731

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9825412.1A Ceased GB9825412D0 (en) 1998-11-19 1998-11-19 A transceiver
GB9927503A Withdrawn GB2344724A (en) 1998-11-19 1999-11-19 Transceiver operable in two frequency bands

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9825412.1A Ceased GB9825412D0 (en) 1998-11-19 1998-11-19 A transceiver

Country Status (2)

Country Link
GB (2) GB9825412D0 (en)
WO (1) WO2000031886A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105933942A (en) * 2016-06-16 2016-09-07 北京小米移动软件有限公司 Frequency band switching method and device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574775A (en) * 1993-08-04 1996-11-12 Lucent Technologies, Inc. Universal wireless radiotelephone system
DE69615914T2 (en) * 1995-05-16 2002-04-04 Matsushita Electric Ind Co Ltd Radio transmission device for time division multiple access system
JP3100111B2 (en) * 1995-06-26 2000-10-16 株式会社エヌ・ティ・ティ・ドコモ Multiband high frequency circuit for mobile radio
GB2310342A (en) * 1996-02-16 1997-08-20 Northern Telecom Ltd Dual mode radio transceiver front end
US5881369A (en) * 1996-07-03 1999-03-09 Northern Telecom Limited Dual mode transceiver
FI106332B (en) * 1996-12-30 2001-01-15 Nokia Mobile Phones Ltd Infrared link

Also Published As

Publication number Publication date
WO2000031886A1 (en) 2000-06-02
GB9825412D0 (en) 1999-01-13
GB2344724A (en) 2000-06-14

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)