| Patent Number |
Title Of Patent |
Date Issued |
| 7551694 |
Limiter based analog demodulator |
June 23, 2009 |
| A limiter based analog demodulator includes a power amplifier receiving a base-band signal and a local clock operating at the base-band frequency. A first multiplier receives an output from the power amplifier and the local clock to provide an in phase signal. A quadrature phase shifter |
| 6897797 |
Digital to analog converter with integral intersymbol interference cancellation |
May 24, 2005 |
| A digital to analog converter (DAC) for a communications system with reduced intersymbol interference incorporates dynamic element matching (DEM) with a matching element array having 2M bits for an input corresponding to M+1 levels thereby employing only one half the range of the DEM |
| 6611289 |
Digital cameras using multiple sensors with multiple lenses |
August 26, 2003 |
| An improved digital camera that produces digital images of high qualities without using expensive image sensors and optics is disclosed. The disclosed digital cameras use multiple image sensors with multiple lenses. One of the multiple image sensors is made to be responsive to all in |
| 5965871 |
Column readout multiplexer for CMOS image sensors with multiple readout and fixed pattern noise |
October 12, 1999 |
| An active pixel sensing structure includes an array of pixel unit cells each of which an adapted to alternate between a light sensing mode wherein the cell outputs an image signal and a reset mode wherein the cell outputs a reset signal. The image signal is proportional to light incident |
| 5600280 |
Differential amplifier and variable delay stage for use in a voltage controlled oscillator |
February 4, 1997 |
| A differential amplifier or delay cell for use in a voltage controlled oscillator comprises a pair of clipper transistors coupled across the output nodes of the amplifier for limiting the voltage swing of the output to a transistor threshold and improving the frequency response of the |
| 5559476 |
Voltage controlled oscillator including voltage controlled delay circuit with power supply noise |
September 24, 1996 |
| A VCO includes a ring oscillator formed by connecting a plurality of voltage controlled inverting delay cells together, and a plurality of transistors for providing control voltages to the plurality of voltage controlled inverting delay cells. Preferably, each transistor has a drain |
| 5548238 |
Low power high speed CMOS current switching circuit |
August 20, 1996 |
| A high speed CMOS current switching circuit suitable for use in digital to analog converters for graphic interfaces having high pixel clock rates, and such interfaces as may be used in portable and other battery operated or low power consumption applications. In operation, the current sw |
| 5396133 |
High speed CMOS current switching circuits |
March 7, 1995 |
| A high speed CMOS current switching circuit suitable for use in digital to analog converters for graphic interfaces having high pixel clock rates (high display resolutions), and such interfaces as may be used in portable and other battery operated or low power consumption applications. I |
