Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – Combining of plural signals
Patent
1996-05-31
1998-01-13
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific input to output function
Combining of plural signals
327334, 327355, G06G 742
Patent
active
057083851
ABSTRACT:
A weighted addition circuit contains a plurality of resistances, each of which is connected to a common output at one terminal and to different input voltages at the other terminal. The voltage at the common output terminal is a balance voltage of the input resistances. The common output terminal is connected to an amplifier having an odd number of stages of inverters and a feedback resistance connecting the output of the last inverter stage to the input of the first inverter stage. Grounded low pass capacitors and/or balance resistors are also be included in the amplifier to improve the stability of the circuit and prevent undesirable oscillation. Providing a circuit containing a balance voltage of the parallel-connected input resistances allows for precise weighted addition of any number of inputs while still maintaining a small and simple circuit structure.
REFERENCES:
patent: 3757234 (1973-09-01), Ohlson
patent: 3970774 (1976-07-01), Bazin et al.
patent: 5394107 (1995-02-01), Shou et al.
patent: 5453711 (1995-09-01), Yamamoto
patent: 5457417 (1995-10-01), Shou et al.
patent: 5465064 (1995-11-01), Shou et al.
patent: 5469102 (1995-11-01), Shou et al.
patent: 5490099 (1996-02-01), Shou et al.
patent: 5500618 (1996-03-01), Comer
patent: 5532580 (1996-07-01), Shu et al.
patent: 5568080 (1996-10-01), Shou et al.
Mims III "Engineer's Mini-Notebook Op Amp Circuits" Siliconcepts 1985 U.S.A., p. 18.
"The Bases of MOS Integration Circuit", Figure 5-26 in page 154 and Figure 5-28 in page 155, HARA, Kindai Kagaku-sha, 1992 (Title translated by applicant).
Shou Guoliang
Taktori Sunao
Yamamoto Makoto
Callahan Timothy P.
Sharp Kabushiki Kaisha
Yozan Inc.
Zweizig Jeffrey
LandOfFree
Weighted addition circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Weighted addition circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weighted addition circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-329666