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| Number | Title | Issue Date |
| 7868665 | Integrated circuit and sensor for imaging New sensors and different embodiments of multi-channel integrated circuit are provided. The new high energy and spatial resolution sensors use both solid state and scintillator detectors. Each channel of the readout chip employs low noise charge sensitive preamplifi... | 01/11/2011 |
| 7724039 | Conversion circuit for converting differential signal into signal-phase signal A conversion circuit for converting a differential signal into a single-phase signal 1 has a source-follower amplifier 10 and a source-grounded amplifier 20. The source-follower amplifier 10 outputs a non-inverted signal IN of the differe... | 05/25/2010 |
| 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 rectified waveform by performing a full-wave rectification on a first ... | 09/22/2009 |
| 7541844 | Current weighted voltage interpolation buffer A voltage interpolation buffer for interpolating voltages by adjusting ratio of bias currents includes a first difference voltage to current unit for outputting corresponding difference current according to a first voltage, a first bias current and voltage of a volt... | 06/02/2009 |
| 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 to the first p-channel MOS transistor in an analog input period, and... | 10/21/2008 |
| 7417472 | Multi-channel integrated circuit A multi-channel integrated circuit is provided in which each channel has an analog section and a digital section. Each channel of the readout chip employs low noise charge sensitive amplifier at its input followed by other circuitry such as shaper, pole-zero, peak h... | 08/26/2008 |
| 7368993 | Transconductance circuit with improved linearity A transconductance circuit, comprising: first and second field effect transistors, each having a drain, a source and a gate; wherein the first transistor is in a first current flow path between first and second nodes of the circuit, and is biased so as to operate in... | 05/06/2008 |
| 7336085 | Current sensing circuit A circuit arrangement for detecting a load current through a load includes a main transistor, a sensing transistor through which a load current flows that is a measure of the load current flowing through the main transistor. In addition, a resistance is connected in... | 02/26/2008 |
| 7332939 | Comparator system and method for comparing an input signal with a reference level using said system A comparator system for comparing a level of an input signal with a level of a reference signal comprises a first comparator configured to input the input signal to one of input terminals thereof and the reference signal to the other of input terminals thereof, a se... | 02/19/2008 |
| 7315588 | System and method for enhanced acquisition for large frequency offsets and poor signal to noise ratio A system and method is herein described for the wide band acquisition of a high performance waveform in an environment with poor signal to noise ratio. The waveform acquired has a preamble with a plurality of frequency modulated Maximum Length Sequences and a period... | 01/01/2008 |
| 7298181 | Highest supply selection circuit A power supply monitoring circuit that monitors and delivers the highest voltage power supply to an IC system includes a voltage comparator that receives two different power supply voltages, and outputs a first signal to the gate of a first switching transistor conn... | 11/20/2007 |
| 7295044 | Receiver circuits for generating digital clock signals A digital clock generation circuit (and a method for operating the same). The digital clock generation circuit includes a first, a second, a third differential comparator circuits. The first differential comparator circuit receives the positive differential clock si... | 11/13/2007 |
| 7224155 | Method and apparatus for current limitation in voltage regulators A circuit for limiting a power current from a power-controlling pass device, the power-controlling pass device being coupled to a supply voltage, comprises the following. A sense device is coupled to the supply voltage with the sense device being configured to draw ... | 05/29/2007 |
| 7217930 | Dose detector and dosimeter A dose detector includes a semiconductor radiation detector; a dose counter; and a check counter. The dose detector detects that the semiconductor radiation detector is outputting white noise even in a radiation shielded area and judges that the semiconductor radiat... | 05/15/2007 |
| 7212905 | Method for operating a motor vehicle In a method for operating a motor vehicle, a target region is determined which is disposed forward of the motor vehicle and an operating recommendation (36) is outputted to the driver in dependence upon the detection. An arrival probability (PCOL) of the moto... | 05/01/2007 |
| 7173405 | Method and apparatus for current limitation in voltage regulators with improved circuitry for providing a control voltage A circuit for limiting a power current from a power-controlling pass device, the power-controlling pass device being coupled to a supply voltage, comprises the following. A sense device is coupled to the supply voltage with the sense device being configured to draw ... | 02/06/2007 |
| 7126386 | Multi-channel integrated circuit A multi-channel integrated circuit is provided in which each channel has an analog section and a digital section. Each channel of the readout chip employs low noise charge sensitive amplifier at its input followed by other circuitry such as shaper, pole-zero, peak h... | 10/24/2006 |
| 7123058 | Signal detecting circuit and method therefor A stable, low power consumption signal detecting circuit may include: a delay circuit, which receives a base clock signal and generates multiple versions thereof having time delay relationships thereto, respectively; dual amplifiers, which detect valid ones of input... | 10/17/2006 |
| 7053671 | Low-jitter differential-to-single-ended data conversion circuits Circuitry is provided for converting differential digital data to single-ended digital data. Differential data signals have complementary pairs of signals that are referenced to each other. Single-ended signals are referenced to ground. The circuitry can be used on ... | 05/30/2006 |
| 7022998 | Radiation dose rate measurement A method and apparatus are provided for determining radiation dose rates at selected locations within an environment. Incident gamma ray energy and count rate are measured at one or more measured locations within the environment to obtain a measured spectrum for tho... | 04/04/2006 |
| 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 first differential comparator for receiving the input voltage within... | 12/20/2005 |
| 6937098 | Translinear amplifier In a translinear amplifier, where the output voltage difference is kept at the same relative difference as the input voltage difference and which is normally formed by two current balancing circuits and some form of an amplifier stage, said amplifier stage is drasti... | 08/30/2005 |
| 6906559 | Method and apparatus for gamma ray detection A high sensitivity, three-dimensional gamma ray detection and imaging system is provided. The system uses the Compton double scatter technique with recoil electron tracking. The system preferably includes two detector subassemblies; a silicon microstrip hodoscope an... | 06/14/2005 |
| 6838914 | Semiconductor device As devices are often different in the characteristics from one another, semiconductor chips based on the devices have discrepancies in the performance. A semiconductor device having a semiconductor switching element and a drive controlling means (1) for gener... | 01/04/2005 |
| 6806744 | High speed low voltage differential to rail-to-rail single ended converter A method and system is arranged to convert a differential low-voltage input signal (e.g. LVDS or RSDS) into a single-ended output signal. An operational trans-conductance amplifier (OTA) is configured to convert the input signal into a current. A trans-impedance sta... | 10/19/2004 |
| 6788114 | Comparator with high-voltage inputs in an extended CMOS process for higher voltage levels A circuit and method are given, to realize a high voltage comparator, which generates an output signal for follow-up processing in the low-voltage domain. The high-voltage comparison task is essentially replaced by a current comparison, implemented as a combination ... | 09/07/2004 |
| 6759701 | Transistor circuit MOS transistors A and B form a transistor circuit (an inverter in this case). A MOS transistor D is one for interrupting leakage current that has a channel length longer than those of the MOS transistors A and B. Under the action of an enable terminal (Enable), the ... | 07/06/2004 |
| 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 threshold may be set in response to a control input.... | 10/28/2003 |
| 6570934 | Single-end-zero receiver circuit An object of the invention is to prevent an erroneous operation of the internal circuits due to glitches and to dispense with a circuit as a countermeasure against glitches. There are provided a low-value threshold detector, a high-value threshold detecto... | 05/27/2003 |
| 6445218 | Comparator with offset voltage A comparator according to the present invention can generate an output signal of low or high level by comparing a first and second input voltages that have a common voltage. An input stage circuit of a comparator according to the present invention receive... | 09/03/2002 |
| 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 reference current source for providing a varying reference... | 05/28/2002 |
| 6333648 | Readout chip for nuclear applications A multi-channel readout chip is provided in which each channel has an analog section and a digital section. Each channel of the readout chip employs low noise charge sensitive amplifier inputs with self triggering output. The trigger threshold can be adju... | 12/25/2001 |
| 6316971 | Comparing and amplifying detector circuit A comparing detector circuit capable of operating regardless of input voltages thereto includes a first pair of transistors to which first and second input signal voltages are input for functioning as a buffer; a second pair of transistors constructing a ... | 11/13/2001 |
| 6285222 | Power-on reset circuit, and semiconductor device A /POR circuit which can detect a power-on of a power supply voltage without fail even in a case where a potential of the power supply rises gently and which produces a /POR signal having a waveform sufficient for initializing internal circuits, as well a... | 09/04/2001 |
| 6252433 | Single event upset immune comparator A single event upset immune analog comparator which comprises simple comparators with either open-collector, or non-open-collector outputs. Input voltage and/or current compensation may also be provided by duplicating external reference circuitry for pres... | 06/26/2001 |
| 6150849 | Readout chip for nuclear applications A multi-channel readout chip is provided in which each channel has an analog section and a digital section. Each channel of the readout chip employs low noise charge sensitive amplifier inputs with self triggering output. The trigger threshold can be adju... | 11/21/2000 |
| 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 direction are connected between the supply voltage and grou... | 07/11/2000 |
| 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 input sample with every other input sample. The comparator ... | 06/20/2000 |
| 5923219 | Automatic threshold control circuit and signal amplifying circuit for amplifying signals by compensating for low-frequency response of photodetector An automatic threshold control circuit includes a bottom detection circuit, a relative peak detection circuit, and a voltage divider circuit. The bottom detection circuit detects an absolute minimum level of an input signal, and the relative peak detectio... | 07/13/1999 |
| 5909132 | Resistance bridge and its use in conversion systems An electrical network creates a differential voltage signal and comprises a plurality of first impedance elements of substantially equal values which are connected to form an impedance bridge. The impedance of at least one of the first impedance elements ... | 06/01/1999 |
