Intermediate frequency planning in radio transmitters and...

Details Intermediate frequency planning in radio transmitters and... Intermediate frequency planning in radio transmitters and...

2005-04-05

2005-04-05

Trinh, Sonny (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

Plural receivers

C455S296000, C455S147000

Reexamination Certificate

active

06876839

ABSTRACT:
A method of intermediate frequency (i.f.) planning for radio transmitters and receivers involves predicting which i.f. or i.f. range will result in spurious emissions to or response from one or more “avoidance bands” being sources of unwanted signals or frequency bands closed to transmission, whereby to choose an i.f. or i.f. band which minimises such i.f. bands. The method may be carried out by computer software which may be embedded in a transmitter/receiver having means for varying its i.f.

REFERENCES:
patent: 4206412 (1980-06-01), Tsurumaru
patent: 5564097 (1996-10-01), Swanke
patent: 5689819 (1997-11-01), Nishimura et al.
patent: 5752174 (1998-05-01), Matai et al.
patent: 5794131 (1998-08-01), Cairns
patent: 6567654 (2003-05-01), Coronel Arredondo et al.
patent: 20030068995 (2003-04-01), Louis et al.
patent: 20030193923 (2003-10-01), Abdelgany et al.
patent: 2 250 877 (1992-06-01), None
patent: 2 250 877 (1992-05-01), None

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