Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 8120405 | Method and apparatus for an output buffer with dynamic impedance control A method and apparatus for an output buffer with dynamic impedance control have been disclosed. ... | 02/21/2012 |
| 7977991 | Adjacent channel interference detection apparatus and method To provide an adjacent channel interference detection apparatus having high detection sensitivity and suitable for LSI integration in a small circuit size. The adjacent channel interference detection apparatus (4) includes: two sign inversion detection units ... | 07/12/2011 |
| 7965119 | Device and method for handling metastable signals A method and device for managing metastable signals. The device includes: a first latch and a second latch, a multiple switching point circuit, connected between an output node of the first latch and an input node of the second latch, wherein the multiple switching ... | 06/21/2011 |
| 7928787 | Enable pin using programmable hysteresis improvement An apparatus for providing programmable hysteresis control using an enable pin of a device is disclosed. An enable pin is configured to receive an input signal to enable and disable an associated device responsive to the input signal. A current sink is attached to t... | 04/19/2011 |
| 7902894 | Accurate hysteretic comparator and method A hysteretic comparator is proposed for comparing input signals and producing an output signal VOT with a hysteresis window Vhys. The hysteretic comparator includes a differential input stage with current output (DICO) having input transistors with transc... | 03/08/2011 |
| 7764101 | Schmitt-trigger-based level detection circuit A Schmitt trigger includes A first PMOS transistors having the drains and sources thereof serially connected and coupled between a voltage source and an output end, and having gates thereof coupled to an input end; B first NMOS transistors having the drains and sour... | 07/27/2010 |
| 7605627 | Programmable boosting and charge neutralization A programmable capacitance circuit including an input node; an output node; and a plurality of capacitance stages. Each of the capacitance stages is coupled to the input node and the output node, and wherein each capacitance stage is configured to be switched into a... | 10/20/2009 |
| 7583122 | Receiver of digital signals having a variable hysteresis, in particular for audio digital application Embodiments of the invention relate to a signal receiver inserted between a first and a second voltage reference and having a first and a second input terminal effective to receive differential signals and an output terminal effective to provide a converted signal. | 09/01/2009 |
| 7453299 | Programmable amplifiers with positive and negative hysteresis Programmable dynamic amplifiers with hysteresis are provided. The hysteretic amplifiers have a first input voltage threshold when the output voltage is at a high voltage and a second input voltage threshold when the output voltage is at a low voltage. A multiplexer ... | 11/18/2008 |
| 7433426 | Adaptive hysteresis receiver for a high speed digital signal An adaptive hysteresis receiver processes a high speed digital signal. A differential receiver circuit compares the high speed digital signal to a reference voltage to generate an output signal. A register circuit latches the output signal, according to a clock sign... | 10/07/2008 |
| 7365586 | Hysteresis-type input circuit Hysteresis circuit 10 is composed of three inverters 40, 42, 44. Node NB in hysteresis circuit 10 is connected to the input terminal of transition-detecting part 14 of transmission control part 12. Transition-detecting p... | 04/29/2008 |
| 7362246 | High speed comparator offset correction An offset canceling buffer receives a reference voltage, and provides a modified reference voltage to a comparator. The modified reference voltage operates to cancel any comparator offset. The offset canceling buffer includes a digitally controllable current source ... | 04/22/2008 |
| 7352221 | Programmable amplifiers with positive and negative hysteresis Programmable dynamic amplifiers with hysteresis are provided. The hysteretic amplifiers have a first input voltage threshold when the output voltage is at a high voltage and a second input voltage threshold when the output voltage is at a low voltage. A multiplexer ... | 04/01/2008 |
| 7336107 | Comparator circuit and control method thereof This invention provides a comparator circuit which outputs a stable waveform without oscillation even if a gradient of a change of a comparison input signal is small and determines a magnitude of the comparison input signal within a predetermined threshold value reg... | 02/26/2008 |
| 7337419 | Crosstalk noise reduction circuit and method In a semiconductor device, a method for reducing the effect of crosstalk from an aggressor line to a victim line begins with sensing the occurrence of a voltage change on the aggressor line that can induce a voltage pulse having a pulse magnitude that exceeds a puls... | 02/26/2008 |
| 7323920 | Soft-error rate improvement in a latch using low-pass filtering In a preferred embodiment, the invention provides a circuit and method for reducing soft error events in latches. A low-pass filter is placed between the output of a forward inverter and the inputs of a feedback keeper. The first and second outputs of the low-pass f... | 01/29/2008 |
| 7319620 | Input and output buffers having symmetrical operating characteristics and immunity from voltage variations A pair of self-biased differential amplifiers having a non-symmetrical topology are combined to provide a self-biased differential amplifier having a symmetrical topology. Each of the combined differential amplifiers includes a pair of transistors coupled to each ot... | 01/15/2008 |
| 7292400 | Device for limiting current in a sensor A read/write device for a disk drive is disclosed. The read/write device includes a pre-amplifier and a recording head. The read/write device also includes a write signal path between the pre-amplifier and the recording head. The write signal path includes a write c... | 11/06/2007 |
| 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 through this comparator circuit. It has a first logic device which is turn... | 11/06/2007 |
| 7289381 | Programmable boosting and charge neutralization A programmable capacitance circuit including an input node; an output node; and a plurality of capacitance stages. Each of the capacitance stages is coupled to the input node and the output node, and wherein each capacitance stage is configured to be switched into a... | 10/30/2007 |
| 7279948 | Schmidt trigger circuit having sensitivity adjusting function and semiconductor device including the same To maintain the noise removal characteristic of a Schmidt trigger circuit stably. There are provided a Schmidt trigger circuit 10 constituted from a Vp/Vn setting unit 11 for determining the threshold level of an input signal and an RS latch unit 12... | 10/09/2007 |
| 7276935 | Input buffer with selectable threshold and hysteresis option An input buffer is configurable for use as a standard buffer with a single switching threshold, selectable to be one of at least two different switching thresholds, or used as a Schmitt trigger circuit with hysteresis, which uses at least two switching thresholds fr... | 10/02/2007 |
| 7271636 | Hysteresis comparator and reset signal generator In some examples, a hysteresis comparator includes a series resistor portion including a plurality of resistors for dividing a power supply voltage, the series resistor portion generating a first midpoint voltage and a second midpoint voltage higher than the first m... | 09/18/2007 |
| 7262649 | Hysteresis comparator A comparator includes a differential amplification circuit having differential input transistors and load transistors, an output transistor for outputting an output value of the comparator, a diode having a cathode connected to a ground, a current output circuit, a ... | 08/28/2007 |
| 7256623 | Frequency programmable feed-forward oscillator and triangle wave generator A frequency programmable feed forward oscillator and triangular wave generator is disclosed having a first input for receiving an input voltage and a second input for receiving an input current. Circuitry within the device responsive to the input voltage scales the ... | 08/14/2007 |
| 7236030 | Method to implement hysteresis in a MOSFET differential pair input stage A simplified comparator circuit (10) having hysteresis and lower power requirements for its implementation. The circuit (10) includes 2 minimum-sized MOSFETs (MN4, MN5) providing feedback from the circuit output to an input device (MN1... | 06/26/2007 |
| 7231325 | System for evaluating a sensor signal The inventive device for evaluating the sensor signal includes the provider for providing the sensor signal, the processor for processing the sensor signal and for providing an information signal comprising information regarding the amplitude course of the sensor si... | 06/12/2007 |
| 7222278 | Programmable hysteresis for boundary-scan testing Disclosed is a Boundary-Scan test receiver for capturing signals during board interconnect testing. The test receiver has a comparator with a first input to receive signals during board interconnect testing, and a second input to receive a reference voltage. A progr... | 05/22/2007 |
| 7202723 | Adjustable switchpoint receiver A signal detector circuit and digital signal receiver implementing the same. In one embodiment the digital signal receiver includes a switch point detector having a detector output and including a transistor array comprising one or more pull-up branches and one or m... | 04/10/2007 |
| 7196561 | Programmable reset signal that is independent of supply voltage ramp rate A PUR circuit for generating a reset signal includes a first node for receiving a reference voltage and a second node for receiving a supply voltage that is referenced with respect to the reference voltage. The circuit further includes a voltage level detector coupl... | 03/27/2007 |
| 7196563 | Comparator and AD conversion circuit having hysteresis circuit A comparator is provided, which compares an input voltage and a reference voltage by using a plurality of inverting circuits connected in series. The comparator includes a first inverting circuit, a second inverting circuit, a feedback path, and a capacitor arranged... | 03/27/2007 |
| 7187223 | Comparator with hysteresis In one embodiment, a comparator is provided with a first differential input stage that receives an input voltage and a reference voltage and produces a first differential output, and a second differential input stage that has differential inputs and produces a secon... | 03/06/2007 |
| 7183826 | High hysteresis width input circuit The present invention is constructed of a first input circuit having a higher logic level VIH made up of a first inverter circuit 22 controlled by an input signal and an N-type MOSFET 16 controlled by a latch circuit 24 which stores a... | 02/27/2007 |
| 7176877 | High voltage pulse driver with capacitive coupling A high voltage driver with capacitive coupling that is useful in the presence of the high power supply ripple common with higher-voltage systems. It permits extreme ranges of duty cycle, but without the limitations of transformer magnetics, or the increased complexi... | 02/13/2007 |
| 7173475 | Signal transmission amplifier circuit A signal transmission amplifier circuit has a transmission gate with an input coupled to an input signal. A cross coupled latch is coupled to an output of the transmission gate and has a signal output. A reference generating circuit is coupled to the cross coupled l... | 02/06/2007 |
| 7173472 | Input buffer structure with single gate oxide An input buffer for interfacing a high voltage signal received at an input node to a low voltage circuit comprising low voltage devices is provided. The buffer includes a threshold adjustment circuit including an inverter coupled to a threshold adjusted output node.... | 02/06/2007 |
| 7170330 | Hysteresis comparator circuit An input voltage is applied to an inverting input terminal of a comparator having no hysteresis. A first constant voltage is divided by resistors to create a reference voltage. The reference voltage is applied to a non-inverting input terminal of the comparator thro... | 01/30/2007 |
| 7170329 | Current comparator with hysteresis A hysteresis current comparator includes a first current comparison unit, a second current comparison unit, and a control circuit connected to the two current comparison units. The first current comparison unit compares a first reference current with an input curren... | 01/30/2007 |
| 7167032 | Self-adjusting Schmitt trigger A Schmitt trigger includes a PMOS transistor and an NMOS transistor, each having a gate coupled to an output voltage terminal. The Schmitt trigger is configured such that an input voltage that switches on the PMOS transistor determines a low voltage threshold and an... | 01/23/2007 |
| 7157941 | Differential switching circuit and digital-to-analog converter A differential switching circuit has a first transistor connected between a first output node and a common node and a second transistor connected between a second output node and the common node. A switching driver generates first and second driving signals in respo... | 01/02/2007 |
