Wave transmission lines and networks – Coupling networks – Electromechanical filter
Reexamination Certificate
2006-06-13
2006-06-13
Summons, Barbara (Department: 2817)
Wave transmission lines and networks
Coupling networks
Electromechanical filter
C333S193000, C333S186000
Reexamination Certificate
active
07061345
ABSTRACT:
Filter circuitry is provided with a series element and a parallel element. The filter circuitry transmits signals that fall within a certain passband and attenuates signals that don't fall within the certain passband. The series element is comprised of a resonance element having antiresonance characteristics, and the parallel element is comprised of a series circuit including an inductor and a capacitor.
REFERENCES:
patent: 1795204 (1931-03-01), Espenschied
patent: 3970972 (1976-07-01), Bunner
patent: 4954793 (1990-09-01), Misu et al.
patent: 5291159 (1994-03-01), Vale
patent: 5760663 (1998-06-01), Pradal
patent: 6201457 (2001-03-01), Hickernell
patent: 51-92147 (1976-08-01), None
patent: 53-52344 (1978-05-01), None
patent: 57-123714 (1982-08-01), None
patent: 58-15316 (1983-01-01), None
patent: 1-194603 (1989-08-01), None
patent: 1-290308 (1989-11-01), None
patent: 6-350390 (1994-12-01), None
patent: 9-116380 (1997-05-01), None
patent: 10-126212 (1998-05-01), None
patent: 2003-298393 (2003-10-01), None
Japan Society for the Promotion of Science 150thCommittee on Acoustic Wave Device Technology, Ohmsha Co., Tokyo, Nov. 30, 1991, pp. 217-227.
Morio Onoe et al., Ohmsha Co., Tokyo, Sep. 20, 1982, pp. 175-188.
Yasuharu Suematsu, Kyoritsu Shuppan Co., Ltd., Tokyo, Oct. 5, 1973, pp. 206-207.
Ibata Koji
Itoh Kenji
Koshinaka Masao
Misu Koichiro
Murai Kouji
Mitsubishi Denki & Kabushiki Kaisha
Summons Barbara
LandOfFree
Filter circuit with series and parallel elements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filter circuit with series and parallel elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter circuit with series and parallel elements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3639575