CATV converter having improved tuning circuits

Details CATV converter having improved tuning circuits CATV converter having improved tuning circuits

1984-09-24

1986-10-21

Ng, Jin F.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency conversion between signal source and receiver

455191, 455301, 455315, 455340, H04B 118, H03J 126, H03J 116

Patent

active

046190007

ABSTRACT:
The disclosure describes an improved CATV converter that incorporates an intermediate frequency filter and amplifier unit that includes first and second tunable circuits. Each tunable circuit has a fixed capactive element and a variable inductance means for tuning the tunable circuit. The first and second tuned circuit are transmissively coupled to one another through a slit in a shield which otherwise shields one tunable circuit from another. The intermediate frequency filter and amplifier unit also includes an FET for amplifying a narrow band intermediate frequency signal and a third tunable circuit comprising the output capacitance of the FET and a variable inductance means for tuning the third tunable circuit.

REFERENCES:
patent: 3226645 (1965-12-01), Harwood et al.
patent: 3309613 (1967-03-01), Bell
patent: 3333198 (1967-07-01), Mandell et al.
patent: 3624515 (1971-11-01), Rezek
patent: 3643168 (1972-02-01), Manicki
patent: 3742131 (1973-06-01), Rogeness
patent: 4204166 (1980-05-01), Araki
patent: 4214212 (1980-07-01), Dipietromaria
patent: 4352209 (1982-09-01), Ma
patent: 4490699 (1984-12-01), Yanagida
patent: 4520507 (1985-05-01), Moon

Affiliated with

Also associated with

Rating

CATV converter having improved tuning circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with CATV converter having improved tuning circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CATV converter having improved tuning circuits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1293662