Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2006-07-25
2006-07-25
Barnie, Rexford (Department: 2819)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S129000, C330S136000, C330S252000, C330S253000, C330S284000, C330S285000, C455S115200, C455S126000
Reexamination Certificate
active
07081796
ABSTRACT:
A low noise amplifier (500) includes a first transconductance device (326) having a control electrode for receiving a first input signal, and a first current electrode; a first load device (322) having a first terminal coupled to a first power supply voltage terminal and a second terminal coupled to the first current electrode of the first transconductance device (326) and forming a first output voltage signal; a second transconductance device (336) having a control electrode for receiving a second input signal, and a second current electrode; a second load device (332) having a first terminal coupled to the first power supply voltage terminal and a second terminal coupled to the first current electrode of the second transconductance device (336) and forming a second output voltage signal; and an attenuation device (340) coupled between the first current electrodes of the first (326) and second (336) transconductance devices and having a control input terminal for receiving a control voltage thereon.
REFERENCES:
patent: 3984783 (1976-10-01), Bickley
patent: 4317083 (1982-02-01), Boyd
patent: 4344043 (1982-08-01), Harford
patent: 5384501 (1995-01-01), Koyama et al.
patent: 6035186 (2000-03-01), Moore et al.
patent: 6047167 (2000-04-01), Yamashita
patent: 6278321 (2001-08-01), Franck
patent: 6342813 (2002-01-01), Imbornone et al.
patent: 6366166 (2002-04-01), Belot
patent: 6414547 (2002-07-01), Shkap
patent: 6480058 (2002-11-01), Blanken
patent: 6489838 (2002-12-01), Tsinker
patent: 6529100 (2003-03-01), Okanobu
patent: 6605996 (2003-08-01), Yu et al.
patent: 6639468 (2003-10-01), Belot
patent: 6735420 (2004-05-01), Baldwin
patent: 6735424 (2004-05-01), Larson et al.
patent: 6756848 (2004-06-01), Garcia et al.
patent: 2003/0155972 (2003-08-01), Ngo et al.
patent: 0 711 031 (1996-08-01), None
patent: 1 134 890 (2001-09-01), None
Thomas H. Lee, The Design of CMOS Radio-Frequency Integrated Circuits, Cambridge University Press, 1998, unknown month, pp. 288-295.
Hornak, Tom, “Using Polyphase Filters As Image Attenuators.” RF Signal Processing, www.rfdesign.com, pp. 26-34, Jun. 2001.
Lee, Thomas H., “The Design of CMOS Radio-Frequency Integrated Circuits.” The Press Syndicate of the University of Cambridge, New York, NY, pp. 556-561, 1998, unknown month.
“900MHZ Image-Reject Transceivers,” Maxim Integrated Products, Sunnyvale, California, 19-1234, Rev. 5, 8/03pp. 1-14, Aug. 2003.
Barnie Rexford
Larson Newman Abel Polanky & White, LLP
Nguyen Khai
Silicon Laboratories Inc.
LandOfFree
Radio frequency low noise amplifier with automatic gain control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radio frequency low noise amplifier with automatic gain control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio frequency low noise amplifier with automatic gain control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3608384