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Class Information
Number: 327/351
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific input to output function > Logarithmic > With cascade network
Description: Subject matter including an arrangement of two or more similar circuits or stages in which an output of one circuit provides an input to the next circuit.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616044 |
Logarithmic temperature compensation for detectors |
Nov. 10, 2009 |
| 7557636 |
Geometric ladder circuit with linear-in-dB transfer function |
Jul. 7, 2009 |
| 7417485 |
Differential energy difference integrator |
Aug. 26, 2008 |
| 7375577 |
Mixer capable of detecting or controlling common mode voltage thereof |
May. 20, 2008 |
| 7340227 |
Wireless communication system and semiconductor integrated circuit |
Mar. 4, 2008 |
| 7330064 |
Geometric ladder circuit with linear-in-dB transfer function |
Feb. 12, 2008 |
| 7268609 |
Logarithmic detector or logarithmic amplifier having chopper stabilized logarithmic intercept |
Sep. 11, 2007 |
| 7196569 |
Feedback compensation for logarithmic amplifiers |
Mar. 27, 2007 |
| 7010283 |
Signal waveform detection circuit |
Mar. 7, 2006 |
| 7002395 |
Demodulating logarithmic amplifier |
Feb. 21, 2006 |
| 6911859 |
Method and apparatus for conversionless direct detection |
Jun. 28, 2005 |
| 6842062 |
Integrated electronic circuit including non-linear inductor devices |
Jan. 11, 2005 |
| 6753725 |
Low pass filter |
Jun. 22, 2004 |
| 6734712 |
Logarithmic amplifier |
May. 11, 2004 |
| 6731918 |
Signal strength detecting device with little temperature dependence |
May. 4, 2004 |
| 6265928 |
Precision-controlled logarithmic amplifier |
Jul. 24, 2001 |
| 6249170 |
Logarithmic gain control circuit and method |
Jun. 19, 2001 |
| 6229375 |
Programmable low noise CMOS differentially voltage controlled logarithmic attenuator and method |
May. 8, 2001 |
| RE37138 |
Log-polar signal processing |
Apr. 17, 2001 |
| 6066976 |
Apparatus and method for improved dynamic range |
May. 23, 2000 |
| 5880618 |
CMOS differential voltage controlled logarithmic attenuator and method |
Mar. 9, 1999 |
| 5839060 |
Logarithmic level detector and a radio receiver |
Nov. 17, 1998 |
| 5793244 |
Logarithmic conversion circuit |
Aug. 11, 1998 |
| 5680070 |
Programmable analog array and method for configuring the same |
Oct. 21, 1997 |
| 5677561 |
Temperature compensated logarithmic detector |
Oct. 14, 1997 |
| 5631594 |
Tunable logarithmic amplifier circuit using cascaded triple-tail cells |
May. 20, 1997 |
| 5561392 |
Logarithmic amplifier employing cascaded full-wave rectifiers including emitter-coupled pairs with unbalanced emitter degeneration as logarithmic elements |
Oct. 1, 1996 |
| 5521542 |
Logarithmic amplifier circuit using triple-tail cells |
May. 28, 1996 |
| 5506537 |
Logarithmic amplifying circuit based on the bias-offset technique |
Apr. 9, 1996 |
| 5489868 |
Detector cell for logarithmic amplifiers |
Feb. 6, 1996 |
| 5481218 |
Logarithmic converter |
Jan. 2, 1996 |
| 5475328 |
Logarithmic intermediate frequency amplifier circuit operable on low voltage |
Dec. 12, 1995 |
| 5471173 |
Cascaded amplifier having temperature compensation |
Nov. 28, 1995 |
| 5471166 |
Logarithmic amplifying circuit using quadritail cells |
Nov. 28, 1995 |
| 5467046 |
Logarithmic intermediate-frequency amplifier |
Nov. 14, 1995 |
| 5451895 |
Wideband amplifier with logarithmic output characteristic |
Sep. 19, 1995 |
| 5414313 |
Dual-mode logarithmic amplifier having cascaded stages |
May. 9, 1995 |
| 5298811 |
Synchronous logarithmic amplifier |
Mar. 29, 1994 |
| 5177381 |
Distributed logarithmic amplifier and method |
Jan. 5, 1993 |
| 5070303 |
Logarithmic amplifier/detector delay compensation |
Dec. 3, 1991 |
| 5057717 |
Logarithmic amplifier circuit |
Oct. 15, 1991 |
| 5049829 |
Logarithmic amplifier with sequentially limiting amplifier stages |
Sep. 17, 1991 |
| 4990803 |
Logarithmic amplifier |
Feb. 5, 1991 |
| 4933641 |
Extended dynamic range logarithmic if amplifying apparatus and method |
Jun. 12, 1990 |
| 4908529 |
Logarithmic amplifier comprising MESFET distributed amplifiers connected in cascade |
Mar. 13, 1990 |
| 4885483 |
Logarithmic amplifier |
Dec. 5, 1989 |
| 4812772 |
Spectrum analyzer and logarithmic amplifier therefor |
Mar. 14, 1989 |
| 4716316 |
Full wave, self-detecting differential logarithmic rf amplifier |
Dec. 29, 1987 |
| 4691381 |
Receiver for amplitude modulated signals |
Sep. 1, 1987 |
| 4531069 |
Logarithmic amplifiers |
Jul. 23, 1985 |
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