Matches 101 - 150 out of 448 < 1 2 3 4 5 6 7 8 9 >
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6204699 Voltage detection circuit  
A voltage detection circuit is capable of detecting a low voltage without malfunctioning, and this so even if the voltage is lower than a minimum operating voltage. The voltage detection circuit...
6198311 Expandable analog current sorter based on magnitude  
A current sorter for sorting a plurality of currents is disclosed. The current sorter comprises an input circuit unit for receiving a plurality of input currents to be sorted, a winner-take-all...
6198422 Low-voltage analog-to-digital converter  
A low-voltage A/D converter is provided which improves resolution by applying a sampling block at input terminal of a comparator to 0.about.Vdd period. The low-voltage A/D converter includes: data...
6188251 Analog voltage maximum selection and sorting circuits  
An analog circuit is provided to output the maximum voltage from among the set of analog voltages produced by a set of voltage sources connected to the input terminals of the circuit. The circuit...
6188264 Automatic threshold level control circuit  
An automatic threshold level control circuit is provided which is capable of controlling the threshold level without causing the DUTY deterioration. The automatic threshold level control circuit...
6163183 Multifunction reset for mixed-signal integrated circuits  
A multifunction reset circuit including low power bandgap, a comparator, and an open drain buffer circuit--with the inclusion of four external components (three resistors and one capacitor) to...
6157219 Amplifier for a semiconductor device and a method of controlling the same  
In an amplifier having an input terminal to which input data is supplied and an output terminal from which output data corresponding to the input data is output, the input and output terminals are...
6118297 Voting circuit and method  
A voting circuit (34) comprises a first variable delay (60) operable to receive a first set of signals in a clock signal and to determine a first delay based on the first set of signals. The first...
6118188 Apparatus and method for switching between two power supplies of an integrated circuit  
A power supply switching circuit employs hysteresis to ensure stable, timely, and accurate transition between a primary power source and a secondary power source of an integrated circuit. A...
6087860 Apparatus and method for generating an envelope for data signals using CMOS  
A CMOS device for generating a waveformn envelope is provided in a network that uses a twisted pair medium, such as a telephone line, to connect stations. The CMOS device receives analog signals...
6087866 Circuit for producing a reset signal  
A circuit for producing a reset signal includes a voltage divider at which a first voltage proportional to a supply voltage can be tapped off. A resistor and a Zener diode disposed in the reverse...
6084439 Peak detector circuit with extended input voltage range  
A detector circuit may detect a peak value of at least one input voltage and may provide the peak value as an output for use by other circuitry capable of being coupled to the detector circuit....
6081140 Control circuit with both positive and negative sensing  
A control circuit is provided which includes a single programmable terminal for controlling a plurality of modes, functions or parameters in a programmable circuit with a minimum of program...
6078213 Method and hardware apparatus for implementing an N-sample median filter  
A hardware apparatus for determining a median sample from n input samples is disclosed. The hardware apparatus includes n(n-1)/2 comparator circuits. The n(n-1)/2 comparator circuits compare each...
6064239 Chopper-type voltage comparator  
A differential input chopper-type voltage comparator for comparing an input voltage signal and a reference voltage signal and outputting a comparison result is provided. The voltage comparator...
6057712 Integrated comparator circuit with four MOSFETS of defined transfer characteristics  
An integrated comparator includes an inverter with a first depletion FET and a first enhancement FET, and a series circuit with a second depletion FET and a second enhancement FET. The second...
6043688 Ratio metric fault tolerant and redundant serial communication system  
A fault tolerant communication system for transmitting a serial data signal through multiple wires regardless of whether one of the wires is open circuited, shorted to ground, shorted to a positive...
6005422 Semiconductor integrated circuit and consumed power reducing method  
A semiconductor integrated circuit and a method for reducing the consumed power are provided. A comparator outputs bits having the same level, which correspond to each other, of a last input stored...
5973515 Differential input stage for wideband reception with high rejection of common mode  
An integrated circuit comprises at least one differential input stage. The differential input stage includes an input circuit and a shaping circuit. The input circuit comprises a first portion and...
5955899 Compact comparator  
A compact electronic comparator circuit is featuring a single amplifier having two loads. The comparator is a symmetrical circuit having a pair of transistors to which positive and negative...
5929661 High speed voltage comparator with matching current sources using current difference amplifiers  
A voltage comparator for comparing a first input voltage to a second input voltage includes a first transistor having a gate to which the first input voltage is applied and a second transistor...
5926043 Output circuit for a semiconductor device  
An output circuit for a semiconductor device that outputs an output voltage based on a received external signal. The output circuit has an interface that receives the external signal, and a...
5913181 Circuit for providing a switch signal to trigger changer in a digital potentiometer  
A comparator which for example can be used for a digital potentiometer is shown. Specifically, a dual differential input circuit with a push/pull amplifier at the output stage is disclosed wherein...
5905387 Analog voltage-signal selector device  
The present invention relates to an analog voltage-signal selector device of the type comprising at least one plurality of comparator circuits operating in parallel and each having at least a first...
5886561 Backup battery switch  
A switching circuit for switching between a main power supply and a battery power supply includes a comparator, a p-channel battery power transfer transistor, a p-channel main power transfer...
5872467 Dynamic comparator with improved pre-charge/set-up time  
A multiple bit dynamic comparator is described which includes logic gates that function to turn-off particular devices that are directly connected to the comparator output node and thereby isolate...
5847598 Differential amplifier  
This invention is directed to providing a differential amplifier that can increase voltage gain at low frequency and that can be applied in signal processing circuits of high accuracy. Such a...
5838171 Low power real-time clock circuit having system and battery power arbitration  
A circuit for power arbitration, low battery voltage detection, and the operation of battery backed circuitry for systems in which the system power supply voltage range overlaps that of a battery...
5828265 Degenerated differential pair with controllable transconductance  
A differential pair with input transistors and provided with a variable degeneration resistor. The degeneration resistor comprises a series arrangement of two branches of coupled resistors which...
5821779 Constant frequency computer bus  
A constant frequency computer bus includes a sinusoidal wave generator that generates a sinusoidal wave. The sinusoidal wave generator is coupled to a reference line and a plurality of bus lines,...
5821780 Comparator operable with low power supply voltage  
A comparator includes a sampling section for respectively obtaining first and second voltage signals from first and second target voltage signals. An amplifier section includes first and second...
5796274 Fault tolerant MOSFET driver  
A MOSFET switched, redundant power supply has a back-to-back MOSFET switch connecting respectively each power supply to a single load. Each power supply has a positive and negative gate voltage...
5789949 Wide common mode range comparator and method  
A transconductance amplifier suitable for the input stage of a comparator with the capability of amplifying input signals with common mode voltage components in a range including the entirety of...
5787124 Quadrature detector and amplitude error correction method for quadrature detector  
A method for correcting an amplitude error between an I signal and a Q signal which are outputted from a quadrature detector including a first multiplier for multiplying a reference signal and a...
5787339 Radiocommunication system operating in a time shared control  
A radiocommunication system comprises an input/output stage section of the system, which includes a first and a second differential circuits each having a differential transistor pair and a current...
5770954 Current comparator with intrinsic limitation of absorption to the lowest current level  
A method and a respective circuit arrangement capable of markedly limiting the absorption of current by a current comparator circuit. The invention consists in limiting the absorption of current...
5757210 Comparator with latch  
A latchable comparator including a comparator and a circuit having a reset input. When the comparator produces a first state, it is latched when the reset input is in the non-reset state. In this...
5745233 Voltage detecting circuit  
A voltage detecting circuit is capable of detecting the voltage to be detected at high precision, is small in size, and is low in manufacturing cost. A first photo coupler and a second photo...
5742200 Environmentally rugged optical sensor with improved noise cancellation  
A noise cancellation system which balances the photocurrents derived by a measurement signal and a reference signal of a sensor. The invention has application in any measurement device which...
5661421 Semiconductor integrated data matching circuit  
A semiconductor integrated circuit for effecting data matching at high speed is provided in a simple circuit. The semiconductor integrated circuit includes a first input terminal and a second input...
5635864 Comparator circuit  
A high speed analog-to-digital converter employs a comparator having first and second units cross coupled in a positive feedback loop. The units are alternately connected to an input voltage and a...
5625304 Voltage comparator requiring no compensating offset voltage  
A method and apparatus is provided for comparing a first input voltage to a second input voltage. In one embodiment of the invention, a first input voltage is transformed into a first current...
5604451 Sense amplifier circuit  
A highly stable sense amplifier circuit for a RAM and ROM includes a bias generating circuit capable of changing a bias voltage corresponding to voltage shifts of data lines, and an amplifying...
5600275 Low-voltage CMOS comparator with offset cancellation  
A CMOS comparator which includes a capacitor connected in an electrical path between two amplification stages. The comparator also includes a voltage source, and a switch is provided between the...
RE35434 Bipolar-MOS comparator circuit with saturation prevention  
An electronic comparator circuit having a high speed during switch phase and combining the advantages of bipolar technology with those of CMOS technology. The circuit consists of a differential...
5589785 Low-voltage CMOS comparator  
A MOS comparator which includes a capacitor connected in an electrical path between two amplification stages. The comparator also includes a voltage source, and a switch is provided between the...
5576646 Transconductor circuit with high-linearity double input and active filter thereof  
The invention relates to a transconductor circuit with a double input and a single output, comprising two input transistors (M1, M2) whose primary conduction terminals (D1, S1, D2, S2) are...
5550496 High speed I/O circuit having a small voltage swing and low power dissipation for high I/O count applications  
An interchip high speed I/O circuit having a low voltage swing and on-chip transmission line terminations. The present invention provides a high speed I/O circuit that uses a small voltage swing to...
5546068 Sense amplifier  
There is disclosed an integrated circuit including a sense amplifier. The sense amplifier is capable of encoding 2 n levels of output characteristic into a bit pattern of n corresponding bits. The...
5539340 Circuit for detecting pulses, and video recorder comprising the circuit  
A circuit for detecting pulses in an electric input signal, which pulses are superposed on a specific reference level (U ref ), has an input terminal for receiving the electric input signal, at...
Matches 101 - 150 out of 448 < 1 2 3 4 5 6 7 8 9 >