An analog-to-digital converter apparatus for analog source signals of one polarity, includes one comparator formed from transistors, a block of digitally addressable voltage sources to set a reference voltage of the comparator, an asynchronous n-bit digital counter, a block of digitally addressable voltage sources to set the potential to be applied to the signal source, a digital control unit, a block storing the calibration data for an input capacitor of the comparator, and a base-2 multiplier ...

Included are embodiments of a method for converting a received analog signal into a digital signal. Some embodiments of the method can include receiving an analog signal; periodically dividing the received analog signal into a plurality of discrete signals at a predetermined interval, wherein each of the plurality of divided signals is associated with a voltage; and quantizing the voltage associated with at least one of the plurality of divided signals. Other systems and methods are also provide...

An analog-to-digital converter apparatus for analog source signals of one polarity, includes one comparator formed from transistors, a block of digitally addressable voltage sources to set a reference voltage of the comparator, an asynchronous n-bit digital counter, a block of digitally addressable voltage sources to set the potential to be applied to the signal source, a digital control unit, a block storing the calibration data for an input capacitor of the comparator, and a base-2 multiplier ...

A control unit for a transportation device has a processing unit that is supplied with power by a first supply voltage and has a signal converter for converting input analog signals to digital signals. The signal converter has an analog converter stage for generating a modified signal from the analog signal and a digital converter stage for generating a digital signal from the modified signal. The analog converter stage has a signal integration stage connected to a signal amplitude comparator; a...

A voltage-to-time conversion circuit compares a ramp-wave voltage, which steps up at a certain gradient, with each of a reference voltage, an input voltage, and a reference voltage, and produces a PB pulsating signal representing the times which the voltages require for having a predetermined relationship to the ramp-wave voltage. An encoder circuit converts the times into coded data items according to the ratios of the times to a common unit time. A normalization circuit determines a conversion...

An analog/digital (A/D) converting circuit is provided that stabilizes system operation, reduces power consumption in an analog circuit region and uses a selected metal-to-metal capacitor, which has a small parasitic capacitance value. The A/D converting circuit includes a first sample/hold amplifier for sampling/holding an analog input signal, a switch for selecting one of a signal outputted from the first sample/hold amplifier and a feedback signal and an A/D sub-converter for converting an an...

A method and system by which multiple ADC architectures can be emulated comprises, a number of electrical components commonly used in a variety of ADC architectures, routing an analog input through a number of switches, and selectively connecting and disconnecting the switches to emulate one of multiple possible ADC architectures.

An analog to digital converter provides a device for characterizing, in digital terms, a first quantity having a magnitude which varies as a function of a second quantity. An output signal is generated having more than two values, the output signal indicating the magnitude of the first quantity in comparison to a reference level and the change in the magnitude of the first quantity as a function of the second quantity.

An untreated polarizer layer which inherently exhibits liquid crystal alignment-promoting characteristics is placed on an untreated front and/or rear substrate and respective electrode layer in contact with the liquid crystal so that the polarizer layer can serve the dual function of polarizing and liquid crystal alignment means in the display, thereby simplifying display construction. If desired, the polarizer layer itself may be rubbed or otherwise mechanically treated in situ on the substrate...

A sigma-delta difference-of-squares RMS-to-DC converter and method for performing such a conversion in which a square of an analog feedback signal is combined differentially with a square of an analog input signal, thereby producing an analog product signal that includes at least one signal component corresponding to a difference between such signal squares. This analog product signal is filtered and digitized to produce a digital output signal to be available for use downstream in or with the h...