Oscillators – Frequency stabilization – Temperature or current responsive means in circuit
Reexamination Certificate
2006-03-28
2006-03-28
Mis, David (Department: 2817)
Oscillators
Frequency stabilization
Temperature or current responsive means in circuit
C331S03600C, C331S1170FE, C331S17700V, C331S179000, C331S186000
Reexamination Certificate
active
07019598
ABSTRACT:
An integrated VCO having an improved tuning range over process and temperature variations. There is therefore provided in a present embodiment of the invention an integrated VCO. The VCO comprises, a substrate, a VCO tuning control circuit responsive to a VCO state variable that is disposed upon the substrate, and a VCO disposed upon the substrate, having a tuning control voltage input falling within a VCO tuning range for adjusting a VCO frequency output, and having its tuning range adjusted by the tuning control circuit in response to the VCO state variable.
REFERENCES:
patent: 4211975 (1980-07-01), Kuroda
patent: 4789976 (1988-12-01), Fujishima
patent: 4818903 (1989-04-01), Kawano
patent: 4903329 (1990-02-01), Marik et al.
patent: 5031233 (1991-07-01), Ragan
patent: 5200826 (1993-04-01), Seong
patent: 5311318 (1994-05-01), Dobrovolny
patent: 5329143 (1994-07-01), Chan et al.
patent: 5389898 (1995-02-01), Taketoshi et al.
patent: 5423076 (1995-06-01), Westergren et al.
patent: 5428829 (1995-06-01), Osburn et al.
patent: 5446311 (1995-08-01), Ewen et al.
patent: 5483207 (1996-01-01), Gabara
patent: 5606295 (1997-02-01), Ohara et al.
patent: 5625325 (1997-04-01), Rotzoll et al.
patent: 5630214 (1997-05-01), Yamamoto et al.
patent: 5648744 (1997-07-01), Prakash et al.
patent: 5686864 (1997-11-01), Martin et al.
patent: 5715012 (1998-02-01), Patel et al.
patent: 5717243 (1998-02-01), Lowther
patent: 5737035 (1998-04-01), Rotzoll
patent: 5739587 (1998-04-01), Sato
patent: 5825600 (1998-10-01), Watt
patent: 5828589 (1998-10-01), Degenhardt
patent: 6150891 (2000-11-01), Welland et al.
patent: 6177964 (2001-01-01), Birleson et al.
patent: 6426680 (2002-07-01), Duncan et al.
patent: 2005/0059373 (2005-03-01), Nakamura et al.
patent: 37 23 778 (1988-01-01), None
patent: 195 06 324 (1995-10-01), None
patent: 0 393 717 (1990-10-01), None
patent: 0 393 717 (1990-10-01), None
patent: 0 431 887 (1991-06-01), None
patent: 0 431 887 (1991-06-01), None
patent: 0 535 536 (1993-04-01), None
patent: 0 629 040 (1994-12-01), None
patent: 0 780 853 (1997-06-01), None
patent: 2 058 505 (1981-04-01), None
patent: 62-154607 (1987-07-01), None
patent: WO 97/09786 (1997-03-01), None
patent: WO 98/50956 (1998-11-01), None
Burghartz, J. N. et al., “High-Q Inductors in Standard Silicon Interconnect Technology and its Application to an Integrated RF Power Amplifier,”International Electron Devices Meeting Technical Digest, pp. 1015-1017 (Dec. 10-13, 1995).
Craninckx, J. and Steyaert, M.S., “A 1.8 Ghz Low-Phase-Noise CMOS VCO Using Optimized Hollow Spiral Inductors,”IEEE Journal of Solid-State Circuits, vol. 32, No. 5, IEEE, pp. 736-744 (May, 1997).
Long, J.R. and Copeland, M.A., “The Modeling, Characterization, and Design of Monolithic Inductors for Silicon RF IC's,”IEEE Journal of Solid-State Circuits, vol. 32, No. 5, IEEE, pp. 357-369 (Mar., 1997).
Poole, S.J. et al., “A CMOS Subscriber Line Audio Processing Circuit Including Adaptive Balance,”IEEE International Symposium on Circuits and Systems Proceedings, vol. 2 of 3, IEEE, pp. 1931-1934 (1988).
Yue, C.P. and Wong, S.S., “On-Chip Spiral Inductors with Patterned Ground Shields for Si-Based RF IC's,”IEEE Journal of Solid-State Circuits, vol. 33, No. 5, IEEE, pp. 743-752 (May, 1998).
English-language Abstract of Japanese Patent Publication No. 62-154607, 2 pages (Jul. 9, 1987)—Date of Publication of Application).
Duncan Ralph
Kwan Tom W.
Broadcom Corporation
Mis David
Sterne Kessler Goldstein & Fox P.L.L.C.
LandOfFree
Integrated VCO having an improved tuning range over process... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated VCO having an improved tuning range over process..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated VCO having an improved tuning range over process... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3563604