GB9213455D0 - A filter circuit arrangement - Google Patents

A filter circuit arrangement

Info

Publication number
GB9213455D0
GB9213455D0 GB929213455A GB9213455A GB9213455D0 GB 9213455 D0 GB9213455 D0 GB 9213455D0 GB 929213455 A GB929213455 A GB 929213455A GB 9213455 A GB9213455 A GB 9213455A GB 9213455 D0 GB9213455 D0 GB 9213455D0
Authority
GB
United Kingdom
Prior art keywords
filter circuit
circuit arrangement
arrangement
filter
circuit
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.)
Granted
Application number
GB929213455A
Other versions
GB2257335B (en
GB2257335A (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.)
Pulse Finland Oy
Original Assignee
LK Products Oy
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 LK Products Oy filed Critical LK Products Oy
Publication of GB9213455D0 publication Critical patent/GB9213455D0/en
Publication of GB2257335A publication Critical patent/GB2257335A/en
Application granted granted Critical
Publication of GB2257335B publication Critical patent/GB2257335B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B1/38—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
    • H04B1/44—Transmit/receive switching
    • 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
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
    • 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
    • H04B1/44—Transmit/receive switching
    • H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals
GB9213455A 1991-06-25 1992-06-24 A switching and filtering circuit for a radio apparatus Expired - Fee Related GB2257335B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI913086A FI913086A0 (en) 1991-06-25 1991-06-25 KOPPLINGSANORDNING AV FILTER FOER SIMPLEX-TRAFIK.

Publications (3)

Publication Number Publication Date
GB9213455D0 true GB9213455D0 (en) 1992-08-05
GB2257335A GB2257335A (en) 1993-01-06
GB2257335B GB2257335B (en) 1995-04-12

Family

ID=8532789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9213455A Expired - Fee Related GB2257335B (en) 1991-06-25 1992-06-24 A switching and filtering circuit for a radio apparatus

Country Status (2)

Country Link
FI (1) FI913086A0 (en)
GB (1) GB2257335B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI97086C (en) * 1994-02-09 1996-10-10 Lk Products Oy Arrangements for separation of transmission and reception
AU4405397A (en) * 1996-09-10 1998-04-02 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for suppressing transmitter overtones and receiver blocking signals in a radio transceiver
JPH11154804A (en) * 1997-11-20 1999-06-08 Hitachi Ltd High frequency circuit device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055807A (en) * 1976-03-25 1977-10-25 Motorola, Inc. Antenna switch
US5023935A (en) * 1989-11-17 1991-06-11 Nynex Corporation Combined multi-port transmit/receive switch and filter

Also Published As

Publication number Publication date
GB2257335B (en) 1995-04-12
FI913086A0 (en) 1991-06-25
GB2257335A (en) 1993-01-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000624