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| Number | Title | Issue Date |
| 7439515 | Pipeline processing of pulse pile-up correction in a nuclear medicine imaging system Correction of scintillation event data from a nuclear medicine imaging system for effects of pulse pile-up is carried out by separating event data packets into total energy and individual detector energy data packets, executing pile-up correction algorithms on each ... | 10/21/2008 |
| 7333308 | Control arrangement A control arrangement is operable to control an electrical relay to supply current. The arrangement comprises current supply means and control means operable to provide a relay make signal and a relay break signal to control the state of the relay to respectively ma... | 02/19/2008 |
| 7301514 | Electronic circuit, electronic device, electro-optical device, and electronic apparatus The invention provides an electronic circuit, an electronic device and an electronic apparatus, which are capable of forming a simple circuit. A first buffer circuit is formed of second, third and sixth transistors and a first capacitor. A second buffer circuit is f... | 11/27/2007 |
| 7224130 | Method of operating a lamp containing a fixed phase power controller A method of operating a lamp that has a power controller connected between a terminal and a light emitting element that converts the line voltage to an RMS load voltage. An input to an analog control block is provided in the controller that is independent of a chang... | 05/29/2007 |
| 7197381 | Navigational system and method utilizing sources of pulsed celestial radiation A system and method for navigation utilizing sources of pulsed celestial radiation are provided. A spacecraft, satellite, or other vehicle (12) has a pulse sensor (22) mounted thereto for detecting signal pulses (14) generated by a plurality of ... | 03/27/2007 |
| 7102418 | Method and apparatus for producing a reference voltage The invention relates to a method and an apparatus for producing a reference voltage that is applied to reference voltage inputs on receiver units in order to discriminate between the logic states of a data signal that is transmitted to a receiver end. A transmissio... | 09/05/2006 |
| 6359495 | Anti-saturation integrator and method A perfect integrator emulator includes a first multiplier multiplying an input with a first constant, KNEW, and generating a scaled input, a summer summing the scaled input with a previously generated scaled output and generating an accumulated... | 03/19/2002 |
| 6356125 | Ramp generator A ramp generator for use in a video mixing system to produce various transition effects between edited video frames. The ramp generator produces a ramp signal R according to the equation R=Ah+Bv+C. The ramp signal R corresponds to a video frame comprised ... | 03/12/2002 |
| 6104217 | Power on/off control circuit and method An apparatus for turning power to a device on and off is disclosed. The apparatus comprises a first signal input, a second signal input, a first charge output electrically connected with the first signal input, a transistor electrically connected with the... | 08/15/2000 |
| 5907258 | Fully integrated two axis shock detector The present invention discloses a fully integrated precision HDA shock sense circuit with high-order filters implemented in integrated circuit technology. Filters are integrated with an improved on-chip bias generator so that they can provide stable, trim... | 05/25/1999 |
| 5717350 | Degenerated differential pair waveform builder A degenerated differential pair waveform builder has a single ramp generator control circuit and a plurality of differential pairs. A trigger input is generated and input to the ramp generator control circuit. The ramp generator control circuit then gener... | 02/10/1998 |
| 5689205 | Switched current differentiator A switched current differentiator includes first and second interconnected current memory cells, An input current is applied to terminal (1) and is fed on line (2) to the current memory cells, A first output current is derived from the first current memor... | 11/18/1997 |
| 5634202 | Method and apparatus for integrating a plurality of analog input signals prior to transmitting a communications signal A method and apparatus for integrating a plurality of analog input signals. A first integrator(725) having a first pole frequency integrates a first of the input signals and a second integrator(730) having a second pole frequency different than the first ... | 05/27/1997 |
| 5554952 | Fast responding method and apparatus for three phase A/C voltage sensing An apparatus for generating a sensing signal from a generally periodic multi-phase AC signal is set forth. The apparatus utilizes a plurality of integrator circuits, a single integrator circuit being respectively associated with each phase of the AC signa... | 09/10/1996 |
| 5539916 | DMA control for continuing transfer to input/output device in a cycle steal mode A DMA control system continuously grants permission to access the I/O device and memory to continue data transfer in a cycle steal mode when there is a continuous stream of DMA requests from a number of I/O devices by producing a logical sum of the DMA re... | 07/23/1996 |
| 5525922 | Automatic gain and level control circuit and method An automatic gain and level control output circuit. The inventive circuit (10) includes a first component (12) for multiplying an input signal by a first reference signal to provide a gain adjusted signal. The input signal is level shifted by a second ref... | 06/11/1996 |
| 5450029 | Circuit for estimating a peak or RMS value of a sinusoidal voltage waveform An estimating circuit for application in estimating or deriving the value Vrms2 or Vpeak2, of a line voltage VAC provides fast response time and a substantially ripple free value for these signals by ... | 09/12/1995 |
| 5430406 | Method and apparatus for measurement of time integrals of exponentially decaying pulses The circuit is adapted for integration of pulse signals of the shape U(t)=U0 exp(-t/͌), wherein the time constant ͌ can be determined in advance by a calibration measurement, in particular signals from a scintillation detector. The purpose is... | 07/04/1995 |
| 5008630 | Stationary probability integrator system A stationary probability integrator system for facilitating spectral anals of detected signals by suppressing random frequency background noise, such as ocean disturbances and marine life, and by enhancing spectral signatures of discrete sound sources, s... | 04/16/1991 |
| 4939472 | Integrating circuit An integrating circuit is configured to feed a correlator output to a first integrating and dumping circuit and to a second integrating and dumping circuit and to subsequently add their respective outputs in a composing circuit. The first integrating and ... | 07/03/1990 |
| 4910416 | Power switch monitor to improve switching time The present invention provides an improved device for minimizing the time delays associated with turning on and off the power switches or power transistors in a standard totem pole configuration. An improved saturation detector monitors each transistor to... | 03/20/1990 |
| 4858169 | Electronic integrator using an operational amplifier and with alleviation of wind-up An electronic integrator employing an algebraically summing operational amplifier which accepts input signals of opposite polarities, relative to a reference voltage, and wherein wind-up is alleviated by diodes which are normally reverse-biased and non-co... | 08/15/1989 |
| 4814714 | Long time constant integrating circuit A method and apparatus for performing integration using a circuit capable of integrating an input signal over a wide linear dynamic range. The circuit modulates the input signal with a biphase signal having positive and negative phases. The modulated sign... | 03/21/1989 |
| 4764752 | Analog to digital converter having no zero or span drift This invention relates to an analog to digital convertor in which zero drift and span drift are eliminated. The first differential amplifier has inputs of an analog voltage which can be switched between its positive input terminals in polarity and a refer... | 08/16/1988 |
| 4730267 | Combination integrate and dump filter and level detector A combination integrate and dump filter comprises an amplifier for performing both the integrate and level detecting functions. Selective circuit configuration (SCC) apparatus is provided and responsive to a first state of a baud signal for providing reac... | 03/08/1988 |
| 4692890 | Method and integrator circuit for integrating signals, in particular for scintillation gamma camera A method and integrator circuit for digitally integrating signals wherein digital signals to be integrated are supplied to a digital adder thereby generating digital adder output signals. Each digital adder output signal is stored and the stored digital a... | 09/08/1987 |
| 4636092 | Diode thermometer A diode thermometer wherein a current source is operated to cause a temperature sensing diode to be subjected to operation at a first current level and then a second current level different from the first current level. A voltage generated from the diode ... | 01/13/1987 |
| 4591856 | Hand off integrator apparatus for signal detection A hand off integrator apparatus utilizing first and second recirculating integrator units in series to integrate a series of input pulses in order to detect the presence of weak signals in a high background noise environment.... | 05/27/1986 |
| 4585934 | Self-calibration technique for charge-coupled device imagers A self-calibration technique which provides detector responsivity normalization for a charge-coupled device, hereinafter referred to as CCD, area imager. The CCD area imager is designed such that the detectors can be electrically decoupled from CCD multip... | 04/29/1986 |
| 4573033 | Filter circuit for digital-to-analog converter A filter circuit smooths the output signal of a digital-to-analog converter by providing linear ramps between adjacent steps of the signal. The circuit measures the voltage difference between two adjacent step levels, amplifies the difference voltage by a... | 02/25/1986 |
| 4517520 | Circuit for converting a staircase waveform into a smoothed analog signal In converting a staircase waveform signal into a smoothed analog signal, this circuit can perform the high-quality conversion without any sophisticated lowpass filter. An input staircase signal is delayed for one stepping interval to produce a differentia... | 05/14/1985 |
| 4361811 | Differential amplifier system Two operational amplifiers are hooked in a different mode by unique circuitry so that the common mode gain is unity and the open loop gain is the same as the open loop gain of the individual amplifiers. Essentially, a negative feedback network feeds the c... | 11/30/1982 |
| 4349769 | Incremental integrator and the resulting servosensors Precision incremental-output integrator of the type comprising: an operational amplifier mounted as analog summing integrator, which sums currents I1 and I2 at the integrator input, characterized by the fact that current I2 | 09/14/1982 |
| 4305150 | On-line channel quality monitor for a communication channel An on-line channel monitor, for measuring Eb /NO, measures the quality of a communication channel while the channel is in use. The channel monitor employs a soft-decision demodulator so as to compare analog signal levels of an AGC co... | 12/08/1981 |
| 4247823 | Low noise, low phase shift analog signal multiplier An analog signal multiplier has a pulse former which forms pulses with heights that are proportional to a first input signal and widths that are proportional to a second input signal, integrates the pulses so formed and at the conclusion of the integratio... | 01/27/1981 |
| 4242638 | Circuit for monitoring the square of the RMS value of a periodic signal A circuit arrangement for monitoring the square of the RMS value of a periodic signal in which an integrator following a squarer is reset to zero at periodic intervals. A first limit detector connected thereto delivers, if the limit set therein is exceede... | 12/30/1980 |
| 4238831 | Pulse interpolation method and apparatus Received periodic pulses of varying amplitude, representing a measured analog signal, are alternately applied to two interpolation channels through gates alternately activated by a flip-flop element responsive to each incoming pulse. Each channel converts... | 12/09/1980 |
| 4227095 | Deviation driver circuit The disclosed deviation driver circuit is capable of producing a difference voltage having a magnitude related to the voltage of a deviation signal provided to the circuit from an external source. The deviation driver circuit of the present invention is c... | 10/07/1980 |
| 4037162 | Pseudo sampling A technique for effectively sampling continuous signals including signals rapid, sharp pulses, by interrogating discrete portions of the signal through integration rather than by conventional samples.... | 07/19/1977 |
| 4030038 | Multiple dumping integrator A multiple dumping integrator having several periodic dumping integrators, ll sharing the same analog-to-digital converter. A selector dumps each periodic dumping integrator in a regular sequence, choosing the longest running such integrator for the next d... | 06/14/1977 |
