Wave transmission lines and networks – Plural channel systems – With balanced circuits
Patent
1978-03-20
1979-01-30
Gensler, Paul L.
Wave transmission lines and networks
Plural channel systems
With balanced circuits
328139, 328167, 330126, H03H 746
Patent
active
041375106
ABSTRACT:
A frequency band dividing filter comprises at least two unit circuits connected in cascade connection of at least two stages, and at least one supplemental delay circuit. Each of the unit circuits comprises a low-pass filter having a specific filtering frequency band with a steep cut-off characteristic, a delay circuit connected in parallel with said low-pass filter and having a frequency phase characteristic substantially equal to the frequency phase characteristic of said low-pass filter in the pass band thereof, and a subtraction circuit connected to the output sides of said low-pass filter and said delay circuit thereby to carry out subtraction of the outputs of said low-pass filter and said delay circuit. The supplemental delay circuit is connected in parallel with the second stage unit circuit, which is connected to the first stage unit circuit in cascade connection, and has the same characteristic as the characteristic of the delay circuit of the second stage unit circuit.
REFERENCES:
patent: 2651673 (1953-09-01), Fredendall
patent: 2760011 (1956-08-01), Berry
patent: 2851661 (1958-09-01), Buland
patent: 3207854 (1965-09-01), Johnson
patent: 3590284 (1971-06-01), Yamane
patent: 3769611 (1973-10-01), Scaggs
Gensler Paul L.
Victor Company of Japan Ltd.
LandOfFree
Frequency band dividing filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frequency band dividing filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency band dividing filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1152831