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7616029 |
Hysteresis-based processing for applications such as signal bias monitors
In one embodiment of the invention, a bias signal monitor has two signal comparators that compare two (power supply) voltages at two different bias points and a logic circuit that processes the...
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7609093 |
Comparator with low supply current spike and input offset cancellation
A current control circuit is coupled in parallel with the current paths of a differential comparator circuit to ensure that a substantially constant current is drawn from a current source during...
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7592845 |
Input signal level detection apparatus and method
A method and an input signal level detection apparatus that correctly detect a level of an input signal while consuming low power apparatus including: a full-wave rectifier outputting a full-wave...
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7576570 |
Signal amplitude detection circuitry without pattern dependencies for high-speed serial links
Precision amplitude detection circuitry without pattern dependencies is provided that includes rectifier circuitry to output a rectified voltage signal and delay circuitry to send one or more...
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7570715 |
Digital signal receiving circuit
A delayed peak detector detects a peak level of an input signal IN at timing lagged behind a peak detector, and a peak difference detector detects a peak difference PLD between a delayed peak level...
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7560959 |
Absolute value peak differential voltage detector circuit and method
A peak voltage detector is used to detect the absolute value of the peak differential amplitude of a differential input signal. The peak voltage detector includes a differential amplifier receiving...
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7545181 |
Reduced offset voltage comparator system
A method for comparing two signal with increased accuracy by using a reduced offset voltage comparator that has a offset zero mode and amplify mode. Additional comparators are used to indicate when...
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7541845 |
Signal receiver apparatus and method for detecting logic state represented by an input signal and semiconductor integrated circuit device having the same
In the semiconductor integrated circuit, an apparatus for detecting a logic state represented by an input signal includes a reference signal generating circuit and a determining circuit. The...
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7498794 |
Method and system for sensing current independently of variations in operating conditions
A method for sensing current independently of variations in operating conditions is provided that includes generating a switch signal at a switching element. A reference signal is generated at a...
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7495478 |
Comparator and infrared remote control receiver
A comparator circuit of the present invention includes a comparator section and a current buffer circuit. In a normal mode, a standby current outputted from the comparator section is amplified by a...
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7453290 |
Supply voltage removal detecting circuit, display device and method for removing latent image
A supply voltage removal detecting circuit, a display device and method for removing a latent image when a supply voltage is disconnected, in which the supply voltage removal detecting circuit...
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7446573 |
Comparator systems and methods
In accordance with an embodiment of the present invention, a comparator system includes a plurality of multiplexers adapted to multiplex a number of differential input signals and a number of...
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7362622 |
System for determining a reference level and evaluating a signal on the basis of the reference level
A circuit exhibits a signal input, means for determining a reference level on the basis of properties of a signal received at the signal input. In addition, the circuit further exhibits means for...
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7356106 |
Clock and data recovery circuit
A clock and data recovery (CDR) circuit comprises a phase detector (PD) and a quadrature phase (QP) detector. A frequency detector (FD) is coupled to the PD and QP detector. The FD detects...
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7340186 |
Discrimination phase margin monitor circuit, transmitting/receiving device and communication system
The discrimination phase margin monitor circuit ( 10 ) of the present invention comprises a first discrimination circuit ( 11 and 12 ) discriminating an input data signal using a clock signal...
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7317362 |
Oscillator circuit and oscillation control method
An oscillator circuit is disclosed that includes a first oscillation part configured to output a first oscillation output by charging and discharging a first capacitor, and a second oscillation...
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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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7212042 |
Below-ground sensor interface amplifier
A below-ground sensor interface amplifier is powered by no negative supply voltage, but the amplifier nevertheless senses an input voltage signal below ground potential. The amplifier outputs an...
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7205797 |
Common mode detection and dynamic correction input circuit
A single ended input circuit can receive an input signal and generate a correction voltage corresponding to a common mode voltage of the input signal. A comparison of the input signal can be...
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7183811 |
Comparing circuit, comparator, level determining circuit and threshold voltage setting method
In a comparing circuit, an input signal switching circuit has a first input terminal, a second input terminal, a first output terminal and a second output terminal. The input signal switching...
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7185315 |
Graphical feedback of disparities in target designs in graphical development environment
An apparatus, program product and method visually represent the disparities between a target design such as a DSP program design and a reference system in connection with the display of a graphical...
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7167523 |
Spacial derivative bus encoder and decoder
A method and apparatus for providing efficient and accurate electronic data transmission of information on a data bus in the presence of noise. Data signals are received on a plurality of input...
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7132672 |
Faraday dose and uniformity monitor for plasma based ion implantation
A Faraday dose and uniformity monitor can include a magnetically suppressed annular Faraday cup surrounding a target wafer. A narrow aperture can reduce discharges within Faraday cup opening. The...
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7106188 |
Method and system for providing an activation signal based on a received RF signal
A method and apparatus are described for providing an activation signal based on a received radio frequency (RTF) signal. The apparatus includes an RF receiver configured to admit a received RF...
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7091793 |
Variable decision threshold apparatus
A variable decision threshold apparatus includes a comparator for receiving the electrical signal and for comparing it to a threshold level. A signal strength monitor monitors the strength of the...
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7088433 |
Self reference type distance measuring method and distance measuring apparatus using an optical pulse
A distance measuring apparatus measure the distance to a target by measuring the time required for an emitted beam of light to go to and return from the target. The light receiving section of the...
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7068079 |
Circuit device with clock pulse detection facility
The invention refers to a circuit device ( 1 ) with at least one connection ( 3 b ), to which a clock pulse (/CLK, /CLK T ) can be applied, whereby the circuit device ( 1 ) also comprises a clock...
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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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7034579 |
High-speed signal level detector
A high-speed signal level detector employs the high gain and high bandwidth of an inverter to perform a comparison. The high-speed signal level detector is capable of achieving the desired...
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6911858 |
Comparator with offset canceling function and D/A conversion apparatus with offset canceling function
A comparator with an offset canceling function and a D/A conversion apparatus capable of canceling an input/output offset with high accuracy using this comparator. To eliminate unbalance between...
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6885223 |
Overvoltage detector
An overvoltage circuit detects differences between the supply voltage from a first circuit and the operating voltage of a second circuit. The circuit may detect when the power supply value of the...
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6838913 |
Charge/discharge current detection circuit and variable resistor
A charge/discharge current detection circuit includes a detection resistance that converts a charge current and a discharge current to a detection voltage, a level shifter circuit that level-shifts...
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6831453 |
Determining the magnitude of pulses
The magnitude of a pulse in a signal having both positive and negative polarity pulses (for example, a ternary PDH signal) is determined by measuring the magnitude of multiple samples of the...
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6812790 |
Signal read circuit
In a signal read circuit including a plurality of circuit rows each having a charge amplifier connected to a photoelectric conversion element PD and a CDS circuit 2 S for performing correlated...
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6781428 |
Input circuit with switched reference signals
An input circuit includes a comparator circuit and a multi-reference circuit. The input circuit receives an input signal and generates an output signal as a function of the input signal and a...
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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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6731230 |
Method to smooth transitions in an ADC for current regulation
The present invention is directed at providing methods in a circuit for smoothing transitions relating to a signal processing function. A reference signal is produced that relates to a DAC output...
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6710605 |
Method and apparatus for detecting valid signal information
An apparatus and method for detecting the presence of a valid signal includes an offset generator coupled to a pair of data slicers and an XOR gate. The offset generator is configured to both add...
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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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6693466 |
Comparator circuit and infrared signal receiving apparatus
The present invention has an object to control easily the pulse width of an output by operating a limiting circuit appropriately even if the power voltage is low. A limiting circuit is provided on...
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6681355 |
Analog boundary scan compliant integrated circuit system
An anlog boundary scan compliant integrated circuit system carries out a test more reliably and cuts down on power dissipated during normal operation. To perform a test of whether or not an...
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6664815 |
Output driver circuit with current detection
An output driver circuit that can be used to determine whether a repeater buffer is the only device driving a bus low. According to the invention, the current through the output driver circuit of...
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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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6651036 |
RMS-to-DC converter with fault detection and recovery
A circuit that provides the root-mean-square (RMS) value of an input signal and that detects and independently recovers from an output fault condition is provided. The circuit includes...
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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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6639432 |
Self calibrating, zero power precision input threshold circuit
An apparatus comprising one or more input circuits. The input circuit may be configured to generate an output signal in response to (i) an input signal and (ii) an input threshold. The input...
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6636081 |
Voltage-comparing device with analog-signal converter
A voltage-comparing device applied in a cursor-control input device is provided. The voltage-comparing device includes an analog-signal converter obtaining an initial reference voltage for the...
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6600353 |
Receiver apparatus and method of propagating a signal
An apparatus and method permits quick response to a transition at an input port and subsequent propagation of the transition to the output port while being able to process a wide variety of input...
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6586984 |
Method for preventing damage to IO devices due to over voltage at pin
A circuit which provides that a source voltage and a pad voltage are band-limited and source-followed down in order to get them into the input range of a comparator, the output of which signals an...
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6580285 |
Output buffer circuit with switching speed control circuit
Provided is a semiconductor device including an input/output buffer or an output buffer with a buffer transistor. The device can control the switching speed of the buffer transistor into a proper...
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