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6985013 |
Voltage to current converter
The invention provides a method and apparatus for performing a voltage to current conversion. In particular, the invention provides a voltage to current converter configured to vary its...
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6977532 |
Dual differential comparator circuit with full range of input swing
The differential comparator circuit for receiving an input voltage within a pre-determined range, amplifying the input voltage, and outputting an output voltage is provided. The circuit includes: a...
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6958926 |
Current switching sensor detector
A sensor for a switching circuit detects the logical state of the switching circuit by monitoring the current flow through the switching circuit. The current flow is conditioned by one or more...
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6957278 |
Reference -switch hysteresis for comparator applications
The present invention concerns an apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a reference output voltage in response to a plurality of...
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6930516 |
Comparator circuits having non-complementary input structures
A non-complementary comparator includes an evaluation element such as a memory cell, a differential amplifier, or another type of circuit capable adapted to perform an evaluation function, and at...
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6924672 |
CMOS comparator output stage and method
A CMOS circuit including a P-channel pull-up transistor (MP) and an N-channel pull-down transistor (MN) includes a first feedback circuit ( 6 ) producing a first delayed signal (V 7 ) on the gate...
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6826635 |
Input/output pad with mornitoring ability and operation method thereof
An I/O pad has a data transmitting circuit, a data monitoring control circuit, and a control selection circuit. The control selection circuit controls the data transmitting circuit at the control...
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6822435 |
Comparator circuit for differential swing comparison and common-mode voltage comparison
A comparator circuit includes at least one transconductance stage that receives two test voltages and two reference voltages. The transconductance stage produces two test currents that are...
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6798253 |
Signal sorting device and method
A current sorter has an input section, a comparing section, and a control section. The input section includes a first input unit and a second input unit and generate a first output signal that is...
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6791371 |
Power-down activated by differential-input multiplier and comparator
A power-down mode is activated when equal voltages are detected on a pair of differential inputs. The voltage difference across the differential inputs is applied to a multiplier, which generates a...
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6791369 |
Clock presence detector comparing differential clock to common-mode voltage
Presence or absence of a differential clock is detected. The voltage of each differential clock line is compared to the common-mode voltage and integrated over time by a capacitor. The capacitor is...
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6782336 |
Test outputs using an idle bus
A test circuit receives a plurality of internal test signals and delivers a group of the plurality of internal test signals onto a bus during an idle state of the bus. The bus is coupled to output...
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6775809 |
Technique for determining performance characteristics of electronic systems
A technique for determining performance characteristics of electronic systems is disclosed. In one exemplary embodiment, the technique may be realized as a method for determining performance...
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6762628 |
METHOD FOR OPERATING A COMPARATOR AND A PRE-AMPLIFIER OF AN INTEGRATED CIRCUIT, WHICH PRE-AMPLIFIER IS CONNECTED IN SERIES TO THE COMPARATOR, AS WELL AS AN INTEGRATED CIRCUIT ARRANGEMENT COMPRISING A COMPARATOR AND A PRE-AMPLIFIER WHICH IS CONNECTED IN SERIES TO THE COMPARATOR
The invention relates to a method for operating a comparator ( 10 ) and a pre-amplifier ( 20 ) of an integrated circuit, which pre-amplifier is connected in series to the comparator, wherein the...
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6747486 |
Comparator
A comparator includes an adjustable offset and particularly dimensioned and configured components. The particular configuration and dimensioning of the comparator ensure that the offset voltage can...
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6744286 |
System and method for comparator threshold adjustment
A system and method are provided for compensating a comparator threshold level. The method comprises: accepting an input signal with an ac component; lowpass filtering the input signal to generate...
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6735552 |
Method of recognizing and correcting errors
A method for error detection and error correction in the monitoring of measurement values is disclosed, in which the value to be tested is checked for plausibility in an evaluation device, for...
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6720827 |
Differential transimpedance amplifier for optical communication
A differential transimpedance amplifier includes a differential transconductance stage to provide a current to a differential transimpedance stage. The differential transimpedance stage includes...
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6694105 |
Burst mode receiving apparatus having an offset compensating function and a data recovery method thereof
A burst mode receiving apparatus having an offset compensating function and a data recovery method thereof, including an intermediate value detector to detect and output an intermediate value of an...
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6677880 |
Chopper type voltage comparator and analog/digital converter using the same
There is provided a chopper type voltage comparator for comparing a sampled input voltage with a ramp voltage that is changed with a time, in which a bias voltage is changed according to the ramp...
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6650147 |
Sense amplifier with extended supply voltage range
A sense amplifier for a memory includes a comparator and a bit line polarization circuit. The comparator receives a first signal representative of a current flowing through a memory cell and a...
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6642750 |
Sequencing circuit for applying a highest voltage source to a chip
A sequencing circuit and sequencing method are provided for applying a highest voltage of first and second system supplies to a chip. The sequencing circuit includes a first transistor coupled...
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6628146 |
Comparator circuit and method
An apparatus and method for comparing two input voltages. The apparatus being a comparator circuit comprising a pair of series connected polycrystalline transistors, two capacitors and a switch,...
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6624667 |
Comparator and analog-to-digital converter
A comparator for an analog-to-digital converter having a tri-state inverter provided on the side where an input of a data register section is located, wherein the need for a switch on the input...
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6617892 |
Single ended interconnect systems
In some embodiments, the invention includes an interconnect system having a single ended driver and a single ended hysteretic receiver. A single ended interconnect is coupled between the single...
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6590570 |
Comparator, display apparatus using comparator for driving system, and driving method for comparator
A comparator which can operate stably against an absolute value distribution of a threshold voltage among MOS transistors and has a wide allowable range against the threshold voltage dispersion and...
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6535028 |
Data bus fault detection circuit and method
A receiver circuit is connected to a differential serial bus having first and second signal conductors. The receiver circuit includes a fault detection circuit which generates a difference signal...
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6522190 |
High efficiency multiple input voltage sources power supply
The present invention provides a highly efficient power supply with redundant multiple input voltage sources. The power supply uses switching transistors, specifically MOSFET's, to create paths for...
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6504403 |
Low voltage differential signal (LVDS) input circuit
Problems associated with using bipolar differential circuits over a wide common mode voltage range are solved using first and second amplifier circuits 3 and 5 , respectively operating over...
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6504499 |
Analog-to-digital converter having positively biased differential reference inputs
An analog-to-digital converter includes a plurality of comparators that each have an output, two analog data inputs coupled to a differential analog data input, and two reference voltage inputs....
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6496772 |
Device for radiometric sensor signal measurement
A device for ratiometric sensor signal measurement has a multiple arrangement of sensors (gas pedal transmitters and throttle valve transmitters air mass flowmeters, etc.) in motor vehicles. The...
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6486710 |
Differential voltage magnitude comparator
A differential voltage magnitude comparator to receive a differential input signal and a differential reference signal, in which a magnitude difference of the differential input signal is compared...
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6462586 |
Selectability of maximum magnitudes for K-winner take all circuit
A k-WTA circuit for selecting inputs which have a maximum-magnitude and outputting the results. k-WTA is very useful in pattern classification such as k-nearest neighbor classifier, Hamming neural...
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6420909 |
Comparators
A circuit compares a first voltage and a second voltage using a comparator. The comparator has a current divider for dividing a bias current in accordance with the values of the first and second...
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6407591 |
Self-configurable clock input buffer compatible with high-voltage single-ended and low-voltage differential clock signals
A dual mode clock input buffer is disclosed. The input buffer includes a first portion for handling a single ended high voltage clock signal and a second portion for handling a differential low...
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6396311 |
Transconductance amplifier circuit
A reference-corrected ratiometric current sensing circuit for sensing a current flowing through a load and a power-controlling pass device includes a sense device, a sense resistor, and a variable...
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6392449 |
High-speed low-power low-offset hybrid comparator
A comparator circuit includes a regenerative stage that uses a relatively small quiescent current combined with a relatively large dynamic current to charge a common-source node in the regenerative...
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6370066 |
Differential output circuit
A differential output circuit is composed of a constant-current circuit section having a reference voltage circuit, an amplification circuit, a resistance, an N-channel MOS transistor and a...
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6362662 |
Analog W.T.A. circuit reject signal
A winner-take-all (WTA) circuit apparatus for comparing two current inputs from a WTA circuit to a threshold current to create a reject signal, to assist in the decision criteria of a...
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6359497 |
Automatic lockup low-voltage biasing circuit
Presented is a low-voltage automatic lock-up biasing circuit with input terminals that accept input voltages, and with an internal node coupled to both input terminals an which takes take the...
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6346847 |
Electronic circuit and corresponding method for trimming an IC
An integrated circuit includes a first access pin and a second access pin, and an electronic circuit for trimming a portion of the integrated circuit. The electronic circuit includes a memory...
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6307406 |
Current comparator for current mode circuits
The present invention is directed to an integrated circuit having a current supply circuit for supplying a reference current and a signal current; at least one current copier circuit for creating a...
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6300804 |
Differential comparator with dispersion reduction circuitry
A differential comparator is disclosed including first and second input amplifier circuits. The input amplifier circuits have respective signal input terminals for receiving respective first and...
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6292031 |
Level shift circuit with common mode level control
There is disclosed a level shift circuit which has a differential input, for receiving input signals, and a differential output, for supplying output signals derived from the input signals. The...
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6278740 |
Multi-bit (2i+2)-wire differential coding of digital signals using differential comparators and majority logic
Differential signaling between integrated circuit chips uses fewer than 2 external wires per bit transmitted. Rather than pairing wires into groups of two, the external wires are part of a larger...
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6271691 |
Chopper type voltage comparison circuit
A chopper type voltage comparison circuit is disclosed which restrain leakage current between an input and output nodes of each amplifying circuit to enable normal voltage comparisons even if a...
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6255898 |
Noise eliminating circuit
A noise eliminating circuit eliminates thermal asperity noise in a reproduction signal generated by a magnetic read head in a disk drive. The noise eliminating circuit includes a differential...
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6232803 |
Tightly controlled output level CMOS-PECL driver
A driver circuit is provided comprising a detection circuit, configured to sense a plurality of different variable operating condition signals, and in accordance therewith, provide a plurality of...
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6215332 |
Semiconductor integrated circuit having power supply voltage detecting function
A first voltage detection circuit detects whether a value of the power supply voltage is lower or higher than a first voltage, and generates a first signal according to the detection result. A...
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6211712 |
CMOS comparator with hysteresis
A comparator with hysteresis having a simplified architecture such that the amount of hysteresis can be readily adjusted. In one aspect, a comparator with hysteresis comprises a first switch for...
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