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7613901 |
Comparators in IC with programmably controlled positive / negative hysteresis level and open-drain / push-pull output coupled to crossbar switch or rising / falling edge interrupt generation
An integrated circuit package includes a processing core for operating on a set of instructions to carry out predefined processes. A plurality of comparators perform compare operations within the...
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7576571 |
Potential comparator and test apparatus
The potential comparator includes input wires 3 and 4 that input a differential signal output from a test object 2 , a high-threshold side divided-voltage generating section 5 that acquires...
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7576572 |
Rail-to-rail comparator with hysteresis
A comparator, comprising at least one current stage for providing a first current proportional to a difference between first and second comparator inputs, the first current being provided to an...
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7528758 |
Flash-type analog to digital conversion circuit for comparing an analog input voltage with a plurality of reference voltages
A plurality of reference voltages are generated by a reference voltage generation circuit. A plurality of comparators is supplied respectively with an analog input voltage and any two reference...
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7521977 |
Voltage-controlled oscillator generating output signal finely tunable in wide frequency range and variable delay circuits included therein
A voltage-controlled oscillator includes a plurality of variable delay circuits, wherein a first differential output signal of an adjacent previous stage is provided as a first differential input...
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7439780 |
Chopper type comparator
A comparator includes: a CMOS inverter constituted by a combination of a first p-channel MOS transistor and a first n-channel MOS transistor; a second p-channel MOS transistor connected in parallel...
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7414439 |
Receiver for a switched signal on a communication line
A receiver for receiving a switched signal on a communication line ( 1 ), such as a LIN bus, the signal varying between first and second voltage levels (sup, ground). The receiver comprises a...
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7292083 |
Comparator circuit with Schmitt trigger hysteresis character
A circuit and a method are provided to produce a novel comparator with Schmitt trigger hysteresis character. The circuit includes a current source which controls the magnitude of current flow...
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7233174 |
Dual polarity, high input voltage swing comparator using MOS input transistors
A differential input comparator circuit comprises an input stage comprising dual polarity input voltages and an output stage adapted to output a differential voltage based on the input voltages,...
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7224201 |
Level converter
The invention relates to a level converter for converting a signal (in) comprising a first voltage level (Vint) and supplied to the level converter, to a signal (Out) including a second voltage...
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7212043 |
Line regulator with high bandwidth (BW) and high power supply rejection ration (PSRR) and wide range of output current
Aspects of a method and system for a linear regulator with high bandwidth, PSRR, and a wide range of output current are provided. A method for isolating voltages in a circuit may comprise applying...
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7180798 |
Semiconductor physical quantity sensing device
A semiconductor physical quantity sensing device to perform electrical trimming at low cost by using a CMOS manufacturing process and a small number of terminals. The semiconductor physical...
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7135891 |
Current sense shunt resistor circuit
Current through a wire is sensed with a shunt resistor and a sense resistor in a current divider circuit. The values of the shunt resistor and sense resistor are related to provide a specified gain...
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7102421 |
Dynamically adjustable on-chip supply voltage generation
A voltage regulation scheme for an on-chip voltage generator includes a voltage sensing circuit (VSC) and a configurable buffer circuit (CBC) to regulate the on-chip voltage generator. The CBC...
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7061280 |
Signal detection circuit
So as to compare an amplitude of a differential input signal to a threshold, a signal detection circuit includes first and second matched input signal level-shifters, a comparator threshold...
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7049857 |
Asymmetric comparator for low power applications
A method and structure for comparing an input signal to a reference signal using a comparator comprises a circuit for setting a trip point of a rising edge of an input signal according to a value...
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6956408 |
Drive device for a light-emitting component
A drive device for a light-emitting component including a reference source, which generates a current specification signal specifying a desired current through the light-emitting component, a...
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6879644 |
Method and apparatus for automatically determining a peak voltage level for a data signal propagated on a carrier medium
A method of automatically determining a peak level of a signal propagated on a carrier medium, such as for example POTS wiring, includes detecting a traversal of a noise threshold level by a data...
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6879645 |
Method and apparatus for dynamically varying the noise sensitivity of a receiver
A method of dynamically, and automatically, varying the sensitivity of a receiver coupled to receive signals on a carrier medium, such as for example POTS wiring, includes the step of detecting...
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6828828 |
Dynamic control of switching reference voltage
A reference voltage is moved dynamically towards a voltage level of the last received value. The movement takes place over a predetermined fraction of a bit-time. The amount of movement is limited...
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6762623 |
High-resolution single-ended source-synchronous receiver
Disclosed are novel methods and apparatus for efficiently providing high-resolution single-ended source synchronous receivers. In an embodiment of the present invention, a source-synchronous...
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6748007 |
Method of processing a pulse response with an adaptive threshold and corresponding receiver
A method of processing a pulse response with an adaptive threshold and corresponding receiver. According to the method, an adaptive threshold is calculated that is a function of a maximum reached...
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6664900 |
Programmable transducer device
A programmable transducer device that includes a signal source (e.g., a sensor) and a transducer output to output a transducer output signal and to receive a control signal from an external control...
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6646479 |
Pulse discriminator
A non-delayed input signal is provided to a first comparator input and, a delayed input signal is applied to a second comparator input. An offset voltage is applied between the delayed and...
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6593779 |
Tunable circuit for detection of negative voltages
The present invention provides a tunable circuit for quickly optimizing an electrical field generated by the F-N tunneling operation. To optimize this electrical field, the charging of a positive...
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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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6498518 |
Low input impedance line/bus receiver
A current sensing circuit connected to a power supply terminal and having at least one input terminal and at least one output terminal includes at least one bipolar transistor having a base,...
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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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6480039 |
Input buffer of an integrated semiconductor circuit
An integrated semiconductor circuit having a first operating mode and a second operating mode has a plurality of input buffers. At least one of the input buffers serves for controlling a changeover...
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6392450 |
Comparing circuit and demodulator circuit using same
A comparing circuit which suppresses an electric power consumption and promptly traces a DC offset when shifting to a receiving mode. The comparing circuit which needs to trace a DC offset...
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6320426 |
Self-calibrating circuit of high speed comparator
A self-calibrating circuit of a high speed comparator, having a first negative phase logic switch, a second negative logic switch, a first positive phase logic switch, a second positive phase logic...
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6281699 |
Detector with common mode comparator for automatic test equipment
A detector circuit for automatic test equipment samples and tests differential signals. The detector circuit includes a pair of impedances connected in series between first and second legs of a...
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6275394 |
Input circuit
There is provided an input circuit with reduced electrical power consumption, which processes an input signal given thereto for removing the noise components contained therein and regulating the...
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6236256 |
Voltage level converters
A voltage level converter for converting an input signal at a first voltage level to an output signal at a second voltage level, the converter comprises: an input for receiving said input signal;...
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6211670 |
Magnetic sensing device for outputting a digital signal as a dynamic representation of an analog signal
A magnetic sensing device comprising a magnetic sensor and a digital circuit is disclosed. The magnetic sensor is operable to output an analog signal as an indication of any movement of an object....
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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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6184723 |
Direct voltage to PTAT current converter for multiple gain control slope for wide dynamic range VGA
A system and method for converting an analog control voltage to a PTAT current. A plurality of differential transistor pairs is provided, each differential pair including a reference transistor and...
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6157222 |
Low power adjustable input threshold circuit
A variable threshold comparator receiving, on an input node, an input signal having a voltage, and providing an output signal on an output node when the voltage of the input signal exceeds a...
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6121806 |
Circuit for adjusting a voltage level in a semiconductor device
A level adjusting circuit for controlling a voltage supplied to a load such as a semiconductor device, which comprises a voltage level detecting circuit, a reference potential generating circuit...
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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...
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6020767 |
CMOS chip to chip settable interface receiver cell
A receiver of signals on cross chip boundaries for coupling chips with different coupling requirements allows changing hysteresis settings with changeable inputs to the receiver for connections...
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6016566 |
Comparator for semiconductor testing device
A comparator circuit for differential output signals which is not affected by a common mode noise on the differential signals. The comparator circuit is advantageously used for testing differential...
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5990708 |
Differential input buffer using local reference voltage and method of construction
A differential input buffer (14) and method of construction are provided. The differential input buffer (14) includes a differential amplifier (54, 56, 50, 52, 62, 64) connected to receive an input...
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5945852 |
CMOS comparator output circuit with high gain and hysteresis
A comparator circuit (100) produces a binary output voltage at an output (109) in response to a time varying input signal received at an input (108). The comparator circuit includes an output...
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5872471 |
Simultaneous bidirectional transmission circuit
In a simultaneous bidirectional transmission circuit for conducting simultaneous two-way communication between LSIs via a transmission line, an input/output circuit connected to the transmission...
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5872468 |
Level detector circuit, interface and method for interpreting and processing multi-level signals
To decode an attenuated multi-level signal (42) in a receive interface (120) of communication apparatus, first (134) and second (150) diode pumps co-operate with a biasing chain to ensure that...
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5854563 |
Process control monitoring system and method therefor
The present invention relates to a process control monitoring system and method. The system and method uses current comparator circuits for monitoring process changes. Process sensitive current...
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5850156 |
Processor supervisory circuit and method having increased range of power-on reset signal stability
For use in a processor supervisory circuit, a power-on reset circuit, a method of producing a power-on reset ("RESET") signal and a power supply including the circuit. The circuit includes: (1) an...
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5847584 |
Threshold detecting device
A threshold detecting device including a detecting stage having a first input supplied with a monitored voltage varying between a first and second value, a second input supplied with a reference...
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5844429 |
Burn-in sensing circuit
An improved burn-in sensing circuit for a semiconductor device generates a signal for indicating a start of a burn-in mode when an external voltage exceeds a predetermined level of a logic...
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