Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7916876 | System and method for reconstructing high frequency components in upsampled audio signals using modulation and aliasing techniques A system and method is disclosed for reconstructing high frequency components of a digital audio signal using a harmonic enhancer in a baseband integrated circuit of a receiver handset. The original spectrum of the digital audio signal is upsampled in a times two (2... | 03/29/2011 |
| 7532045 | Low-complexity active transconductance circuit An active transconductance is provided by converting an input voltage into a current, and providing the current to a node which is maintained at a generally fixed voltage. Current is mirrored from the fixed voltage node to an output node. Such an active transconduct... | 05/12/2009 |
| 7400184 | Current mode multiplier based on square root voltage-current relationship of MOS transistor A current mode multiplier circuit is provided based on the square root voltage-current relationship of an MOS transistor. The circuit includes first, second and third MOS transistors with a common aspect ratio, and first and second current sources that respectively ... | 07/15/2008 |
| 7145393 | Operational amplifier with class-AB+B output stage An operational amplifier is provided that includes a Class-AB stage and a Class-B stage coupled in parallel with each other to form an output stage. The Class-AB stage is operable to drive an output load. The Class-B stage is also operable to drive the output load a... | 12/05/2006 |
| 7126423 | Differential difference amplifier for amplifying small signals close to zero volts A differential difference amplifier is provided for amplifying an input signal having a magnitude close to zero (or a negative supply voltage) and adding an offset voltage to the amplified input signal. ... | 10/24/2006 |
| 7102400 | Phase locked loop charge pump and method of operation A charge pump includes a current source capable of generating a reference current. The charge pump also includes a first current mirror capable of conducting a first current. The charge pump further includes a second current mirror capable of conducting a second cur... | 09/05/2006 |
