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GB2319913B - Transmitter and superheterodyne receiver - Google Patents

Transmitter and superheterodyne receiver

Info

Publication number
GB2319913B
GB2319913B GB9803132A GB9803132A GB2319913B GB 2319913 B GB2319913 B GB 2319913B GB 9803132 A GB9803132 A GB 9803132A GB 9803132 A GB9803132 A GB 9803132A GB 2319913 B GB2319913 B GB 2319913B
Authority
GB
United Kingdom
Prior art keywords
transmitter
superheterodyne receiver
superheterodyne
receiver
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 - Fee Related
Application number
GB9803132A
Other versions
GB2319913A (en
GB9803132D0 (en
Inventor
Nozomu Watanabe
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.)
NEC Corp
Original Assignee
NEC 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 claimed from JP5155351A external-priority patent/JPH0715371A/en
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB9803132D0 publication Critical patent/GB9803132D0/en
Publication of GB2319913A publication Critical patent/GB2319913A/en
Application granted granted Critical
Publication of GB2319913B publication Critical patent/GB2319913B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
    • 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
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transceivers (AREA)
GB9803132A 1993-06-25 1994-06-24 Transmitter and superheterodyne receiver Expired - Fee Related GB2319913B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5155351A JPH0715371A (en) 1993-06-25 1993-06-25 Superheterodyne system transmission/reception method and transmitter/receiver
GB9412705A GB2279519B (en) 1993-06-25 1994-06-24 Transmitter/receiver

Publications (3)

Publication Number Publication Date
GB9803132D0 GB9803132D0 (en) 1998-04-08
GB2319913A GB2319913A (en) 1998-06-03
GB2319913B true GB2319913B (en) 1998-07-15

Family

ID=26305120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9803132A Expired - Fee Related GB2319913B (en) 1993-06-25 1994-06-24 Transmitter and superheterodyne receiver

Country Status (1)

Country Link
GB (1) GB2319913B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2350948B (en) * 1999-06-04 2003-10-01 Mitel Semiconductor Ltd Frequency changer and digital tuner

Also Published As

Publication number Publication date
GB2319913A (en) 1998-06-03
GB9803132D0 (en) 1998-04-08

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Legal Events

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

Effective date: 20040624