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| Number | Title | Issue Date |
| 7990184 | Comparing device having hysteresis characteristics and voltage regulator using the same Embodiments include a comparing device having hysteresis characteristics and a voltage regulator using the same. The voltage regulator includes a comparator which compares a comparison voltage with a reference voltage and outputs a result of the comparison, a switch... | 08/02/2011 |
| 7420340 | Motor speed control circuit A motor speed control circuit which controls a rotational speed of a motor by controlling an amount of current flowing through a drive coil of the motor. The control circuit comprises a reference voltage circuit that generates a reference voltage corresponding to a ... | 09/02/2008 |
| 7400279 | Circuits and methods with comparators allowing for offset reduction and decision operations Circuits and methods may be improved by using ADCs that compensate for the effect of comparator input offset on comparator decisions. Offset compensation may be implemented in an ADC by using an amplifier section between the input of the ADC and a comparator section... | 07/15/2008 |
| 7368937 | Input termination circuits and methods for terminating inputs An input signal provided to an input terminal is terminated by coupling the input terminal to a ground voltage through a pull down transistor if the input signal at the input terminal is at a “high” level and coupling the input terminal to a power voltage throug... | 05/06/2008 |
| 7366275 | Output calibrator with dynamic precision An integrated circuit device having an output driver circuit and a control circuit. The output driver circuit outputs a first signal having a signal level according to a control value. The control circuit is coupled to receive the first signal from the output driver... | 04/29/2008 |
| 7314264 | Ink jet application device and ink jet application method An ink jet application method employed in an ink jet application device so as to apply a certain voltage to an actuator mounted to a nozzle and spray an ink-droplet from the nozzle by a uniform volume, including reading characteristic information for relating a volu... | 01/01/2008 |
| 7262653 | Voltage level detection circuit A voltage level detection circuit is disclosed. The voltage level detection circuit comprises a pull-up unit including a plurality of pull-up devices, each for supplying an internal voltage in response to a signal resulting from a logic operation of a voltage up con... | 08/28/2007 |
| 7259596 | Circuit arrangement for monitoring a voltage A voltage (UE1, UE2), other than a supply voltage (UV1, UV2), is monitored and controlled to avoid damage to circuit components by maintaining a required voltage level. Dissipation power losses are reduced by switching off a monitoring ci... | 08/21/2007 |
| 7253663 | Apparatus and methods for self-biasing differential signaling circuitry having multimode output configurations for low voltage applications The present disclosure relates to a differential signaling circuit including differential signaling circuitry having at least one output and one input, that can operate in multiple mode of operations while using a single, low voltage supply source. Two or more switc... | 08/07/2007 |
| 7227403 | Internal voltage generator for semiconductor device Disclosed is an internal voltage generator, which includes a detecting means for detecting a level of an internal voltage, an oscillator for generating a driving pulse signal in response to an output signal of the detecting means, a first driving unit for outputting... | 06/05/2007 |
| 7196565 | DC level wandering cancellation circuit A DC level wandering cancellation circuit is provided. The DC level wandering cancellation circuit comprises a low pass filter, for receiving an input voltage; a high pass filter coupled to the low pass filter; an amplifier coupled to the high pass filter for receiv... | 03/27/2007 |
| 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 |
| 7164295 | Feedback control system and method A feedback control system and method thereof are provided. The feedback control method includes (a) comparing the level of a reference signal with the levels of first and second signals, (b) if the levels of the first and second signals are lower than the level of t... | 01/16/2007 |
| 7164997 | Bus line current calibration Disclosed herein is a method and system for calibrating line drive currents in systems that generate data signals by varying line drive currents and that interpret the data signals by comparing them to one or more reference voltages. The calibration includes varying... | 01/16/2007 |
| 7157946 | Chopper comparator circuit The conventional chopper comparator circuit has had high power consumption because the gain thereof used to be set high, so that there has been the need for cutting down on power consumption. In view of the problem described, there is provided a chopper comparator c... | 01/02/2007 |
| 7155185 | Apparatus and methods for eliminating DC offset in a wireless communication device Apparatus and methods for eliminating DC offset in a wireless communication device operable on a continuous basis or on a sampled basis. In a receive channel, the output of a forward variable gain amplifier is fed back to an RC circuit to charge the capacitor (C) to... | 12/26/2006 |
| 7148727 | Read-out circuit for infrared detectors The present invention is related to a device comprising a capacitive feedback transimpedance operational amplifier, that comprises a main operational amplifier (with a first input, a second input and an output) and an integrating capacitor, connected between the sec... | 12/12/2006 |
| 7123080 | Differential amplification input circuit An input circuit has a differential amplification circuit which converts a differential signal to a single end signal to output the single end signal, an attenuation circuit which attenuates a first input signal to output the attenuated signal to the differential am... | 10/17/2006 |
| 7116134 | Voltage comparator A voltage comparator with comparing means that are energized upon the occurrence of a clock-edge and that are de-energized when the comparison operation is completed. The comparing means are preceded by a voltage divider (D) for dividing the voltage to be compared a... | 10/03/2006 |
| 7116139 | Apparatus and method for controlling operation of a processor device during startup An apparatus for controlling operation of a processor device during startup of the processor device includes: (a) a signal treating circuit receiving a voltage supply signal at a voltage supply locus; the signal treating circuit using the voltage supply signal for g... | 10/03/2006 |
| 7106107 | Reliability comparator with hysteresis A comparator circuit includes a reference generator connecting to a first source providing a first voltage. The reference generator is operative to generate a reference signal and includes a control circuit selectively operable in at least a first mode or a second m... | 09/12/2006 |
| 7102409 | DC level wandering cancellation circuit A DC level wandering cancellation circuit is provided. The DC level wandering cancellation circuit comprises a low pass filter, for receiving an input voltage; a high pass filter coupled to the low pass filter; an amplifier coupled to the high pass filter for receiv... | 09/05/2006 |
| 7075339 | Semiconductor output circuit device Comparison circuits are provided, corresponding to a plurality of pull up transistors, each for comparing a voltage at an output node and each respective reference voltage different in voltage level from other, and for adjusting a drive current of a corresponding ou... | 07/11/2006 |
| 7034619 | Monolithic array amplifier with periodic bias-line bypassing structure and method A bias-line bypassing structure comprises a plurality of bias-line bypass circuits forming a periodic structure at least partially around each of a plurality of amplification units to reduce RF current flow between the amplification units and a grid-bias network. Ea... | 04/25/2006 |
| 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 high-speed level detection without demanding the substantial power consumptio... | 04/25/2006 |
| 6998879 | Level determination circuit determining logic level of input signal An input circuit in a DRAM includes a differential amplifier circuit amplifying a potential difference between a potential of an input signal and a reference potential, an inverter outputting an inversion signal of an output signal of the differential amplifier circ... | 02/14/2006 |
| 6960980 | Power converter with shunt resistor A power converter includes a shunt resistor constituted by a shunt resistance and a plurality of main electrodes made of a sheet-like resistive material. In the shunt resistor, plates lower in volume electric resistivity than the resistive material, higher in therma... | 11/01/2005 |
| 6957278 | Reference -switch hysteresis for comparator applications The present invention concerns an apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a reference output voltage in response to a plurality of reference voltages. The second circuit may be configured to generate... | 10/18/2005 |
| 6949961 | Power switch structure with low RDSon and low current limit In one embodiment, a power switch device (33) includes a first MOSFET device 41 and a second MOSFET device (42). A split gate structure (84) including a first gate electrode (48,87) controls the first MOSFET device (41). A s... | 09/27/2005 |
| 6943596 | Power-on reset circuit for use in low power supply voltage applications Systems and methods are disclosed for a power-on reset used in low power supply voltage applications (i.e., having a full operating power supply voltage of less than about 2.0 volts). One embodiment of the reset circuit comprises a differential voltage generation ci... | 09/13/2005 |
| 6937083 | Analog signal conditioning circuit having feedback offset cancellation Analog signal conditioning circuitry is provided for processing an analog signal generated by a sensor to remove DC offset. The signal conditioning circuitry includes an amplifier having the first input receiving an analog input signal and a second input receiving a... | 08/30/2005 |
| 6933753 | Sensor signal output circuit A sensor signal output circuit includes a first differential amplifier, a first load resistor, a first transistor, a second transistor and a limiter section. The limiter section includes at least a second differential amplifier, which includes an input end coupled t... | 08/23/2005 |
| 6930550 | Self-biasing differential buffer with transmission-gate bias generator A self-biasing differential buffer generates a self-bias voltage from its inputs. A first amplifier receives a first input signal on gates of four transistors—p and n-channel drive transistors in a drive branch and p and n-channel bias-generating transistors in a ... | 08/16/2005 |
| 6879198 | Differential input receiver with hysteresis A differential input receiver with hysteresis on both sides of the reference voltage may include a two-input, one-output differential amplifier including two input transistors having a common terminal connected together. The control terminal of each transistor may b... | 04/12/2005 |
| 6870406 | Output driver circuit An output driver circuit includes an input stage to which an input voltage is applied, and an output stage to which an output voltage is applied, input stage and output stage being connected by at least one supply voltage terminal and/or at least one ground terminal... | 03/22/2005 |
| 6753705 | Edge sensitive detection circuit An edge sensitive detection circuit includes a filter module and a soft latch module. The filter module is operably coupled to receive an input logic signal that corresponds to the triggering of an event and produces a pulse signal in response to an edge of the inpu... | 06/22/2004 |
| 6744280 | Voltage output differential (VOD) correction circuit for differential drivers System and methods are provided for monitoring circuit performance and correcting for variations in current reference signals to maintain a desired Voltage Output Differential (VOD) between the two differential output signals. A voltage signal associated with VOD is... | 06/01/2004 |
| 6617890 | Measuring power supply stability A system for measuring the stability of a power signal from a power supply includes a threshold violation detector. The threshold violation detector includes a comparator and an indicator. The comparator has a power signal input, a threshold signal input,... | 09/09/2003 |
| 6590422 | Low voltage differential signaling (LVDS) drivers and systems LVDS drivers and analog-to-digital (ADC) systems are provided which facilitate easy alteration (e.g., replacement of a selectable resistor Rsel) of differential current levels and differential voltages in response to altered loads. These driver... | 07/08/2003 |
| 6586972 | Transistor-mismatch-insensitive current comparator cell This invention relates to a method and apparatus for converting a current signal into a two-level output voltage depending on a reference current signal. In one embodiment, a first current, which is the reference current signal is applied to the apparatus... | 07/01/2003 |
