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| Number | Title | Issue Date |
| 7733155 | Low power voltage detection circuit and method therefor In one embodiment, a low power voltage detection circuit includes a first voltage detection device that receives power from an input voltage and a second voltage detection device receives power from an output of the low power voltage detection circuit. ... | 06/08/2010 |
| 7573315 | Control device and method of operating the control device having controller chips and change-over unit A control device contains a plurality of controllers, a common signal output, and a change-over unit. The controllers are coupled on an output side to the common signal output through the change-over unit. A plurality of differentiating elements are disposed upstrea... | 08/11/2009 |
| 7406339 | On-chip detection circuit off-chip mechanical switch's open and close actions An on-chip detection circuit automatically detects when an external switch has been activated. When the device is initialized, the detection circuit measures the operating current and coverts the information into an analog voltage. The analog voltage is then process... | 07/29/2008 |
| 7388410 | Input circuits configured to operate using a range of supply voltages An input circuit includes an input signal transmission circuit configured to output a first transmission signal at a first output node in response to an input signal at an input node, and a Schmitt trigger inverter configured to output a second transmission signal a... | 06/17/2008 |
| 7352230 | Internal voltage trimming circuit for use in semiconductor memory device and method thereof An internal power voltage trimming circuit and its method individually or simultaneously perform level trimming for a plurality of power voltages in a semiconductor memory device. The internal power voltage trimming circuit includes a trimming control signal generat... | 04/01/2008 |
| 7340366 | Method and apparatus of temperature compensation for integrated circuit chip using on-chip sensor and computation means A method and apparatus of temperature compensation for an integrated circuit using on-chip circuits, sensors, and an algorithm. The chip includes an on-chip reference circuit, an on-chip sensor measuring a parameter relative to the reference, and an on-chip computat... | 03/04/2008 |
| 7332904 | On-chip resistor calibration apparatus and method An on-chip resistor is calibrated with a sense circuit that compares a resistance associated with an off-chip resistor to the on-chip resistor via a current-mirror circuit and a comparator. A digital counter circuit evaluates the comparison and adjusts its count suc... | 02/19/2008 |
| 7280410 | System and method for mode register control of data bus operating mode and impedance A DRAM device includes a mode register that is programmed to select one of two modes for operating data bus terminals in the device. A timing circuit generates timing signals in synchronism with the clock signal that correspond to the selected mode. The timing signa... | 10/09/2007 |
| 7265459 | High Q linear controlled variable capacitor A voltage controlled variable capacitor, formed of a larger number of fixed capacitor segments and a corresponding number of switching elements, linearly switches on each switching element, one after the other. Several techniques are disclosed to have only a minimum... | 09/04/2007 |
| 7259609 | Clamping circuit A clamping circuit containing a transistor and a current amplifier. The transistor is designed to turn on when the voltage at a node exceeds (falls below) a specified upper (lower) level. The current amplifier is designed to draw substantial amount of current when t... | 08/21/2007 |
| 7253662 | Method for forming an electric device comprising power switches around a logic circuit and related apparatus A method for forming an electric device having power switches around a logic circuit including: forming a logic circuit on a substrate; forming a plurality of power switches around the logic circuit; and coupling first ends of the power switches to a voltage end, an... | 08/07/2007 |
| 7245146 | Semiconductor device with termination resistance adjusting circuit A semiconductor device includes a transmitter, a termination resistance adjusting section, a transmitter control section and a control signal generating section. The transmitter has two output terminals and operates based on a control current. The termination resist... | 07/17/2007 |
| 7233177 | Precision tuning of a phase-change resistive element The present invention comprises a method and structure for programming an on-chip phase-change resistor to a target resistance. Using an off-chip precision resistor as a reference, a state-machine determines a difference between the resistance of an on-chip resistor... | 06/19/2007 |
| 7221212 | Trimming functional parameters in integrated circuits A trimming structure for trimming functional parameters of an Integrated Circuit—IC—(100) includes a first (115a) and at least one second functional blocks (115b, . . . ,115n) with which a first (Vrg,a) and at lea... | 05/22/2007 |
| 7215185 | Threshold voltage extraction for producing a ramp signal with reduced process sensitivity A system for providing a threshold voltage (VT) includes a VT extractor that extracts the VT for a MOS transistor relative to a first voltage rail. An inversion circuit inverts the extracted VT (e.g., VT+VI... | 05/08/2007 |
| 7196569 | Feedback compensation for logarithmic amplifiers A logarithmic amplifier is compensated by a feedback loop. The feedback loop may control a series of detector cells in response to an output from one or more of the detector cells. The feedback loop may be used to provide frequency compensation to the log amp by adj... | 03/27/2007 |
| 7190205 | Variable resistance circuit Values of control signals 61, 62, 63, . . . , 6n, each inputted to an input terminal for operation control 6 of each of transistor elements 4 constituting a variable resistance portion 2, are controlled based upon an input signal | 03/13/2007 |
| 7177610 | Calibrated low-noise current and voltage references and associated methods A low-noise current reference circuitry includes a voltage source, a current source, and a controller. The voltage source generates a reference voltage. The current source provides a low-noise output current in response to a control signal. The controller provides t... | 02/13/2007 |
| 7161851 | Method and apparatus for generating multiple system memory drive strengths A system and method for generating multiple drive strengths for one or more output signals of a memory controller operable to control a memory subsystem. The system includes a state machine operable to generate an n-bit output representative of a drive strength oper... | 01/09/2007 |
| 7154325 | Using active circuits to compensate for resistance variations in embedded poly resistors Variations in the actual resistance of a target poly resistor in a semiconductor integrated circuit can be compensated for by using an active circuit that provides a negative resistance in parallel with the target resistor. This produces a tuned resistance that is c... | 12/26/2006 |
| 7154733 | Low cost squib driver for airbag application A circuit and a method are given, to realize a very efficient driver device for igniters or squibs as used e.g. in airbag applications. Special attention has been turned to include secure and always reliable operating features into the device and at the same time to... | 12/26/2006 |
| 7152009 | Parameter correction circuit and parameter correction method In a parameter correction circuit in an LSI, a reference resistor element with high precision having a resistance value set to a target value is connected to an external terminal of the LSI. A constant current from a mirror circuit connected to a current supply flow... | 12/19/2006 |
| 7123729 | Dual use of an integrated circuit pin and the switching of signals at said pin In a signal processing system with an IC having an intrinsic signal provided at a pin of the IC, a first operational function (de-emphasis) for the signal is provided at the pin, and further along in the signal flow path, a second operational function (variable atte... | 10/17/2006 |
| 7122980 | Motor driving apparatus and motor driving method A motor driving apparatus includes a comparator, a threshold controller, a position determining unit, a phase-switching controller, and a current output unit. While the rotor is stopped, the phase-switching controller supplies a predetermined phase of winding with a... | 10/17/2006 |
| 7119640 | Chua's circuit and it's use in a hyperchaotic circuit The present invention provides an improved Chua's circuit providing current mode operation, access to all state variables, minimum use of grounded passive elements, and freedom from passive component matching comprising a dual output current conveyer based inductor ... | 10/10/2006 |
| 7117378 | Adaptive voltage scaling digital processing component and method of operating the same There is disclosed a digital circuit comprising a digital processing component, an adjustable power supply and power supply adjustment circuitry. The digital processing component is capable of operating at a plurality of selected clock frequencies, wherein a maximum... | 10/03/2006 |
| 7113020 | Capacitance multiplier circuit exhibiting improving bandwidth A monolithic capacitance multiplication circuit serves to reduce the required die area when larger capacitance values are needed such as in filter and loop frequency compensation circuits. A current mirror/cascoding device arrangement reduces the effective series re... | 09/26/2006 |
| 7106120 | PCMO resistor trimmer Using programmable resistance material for a matching resistor, a resistor trimming circuit is designed to reversibly trim a matching resistor to match a reference resistor. The programmable resistance materials such as metal-amorphous silicon metal materials, phase... | 09/12/2006 |
| 7107469 | Power down processing islands A structure and associated method of processing data on a semi-conductor device comprising an input island, a processing island, and an output island formed on the semiconductor device. The input island is adapted to accept a specified amount of data and enable a me... | 09/12/2006 |
| 7088274 | Difference amplifier for digital-to-analog converter An improved circuit is provided that buffers the output of a DAC while improving the bandwidth and linearity of the circuit. A DAC comprises an output signal of a switched DAC circuit coupled to an inverting node of an output buffer configured as a difference amplif... | 08/08/2006 |
| 7084663 | Impedance adjustment circuit, impedance adjustment method, and semiconductor device An impedance adjustment circuit has an external resistor, a comparator which compares the potential of one terminal of the external resistor with a predetermined voltage, a counter whose counted value changes in accordance with an output from the comparator and whic... | 08/01/2006 |
| 7084691 | Mono-polarity switchable PCMO resistor trimmer Using programmable resistance material for a matching resistor, a resistor trimming circuit is designed to reversibly trim a matching resistor to match a reference resistor. The programmable resistance materials such as metal-amorphous silicon metal materials, phase... | 08/01/2006 |
| 7073087 | Transition signal control unit and DMA controller and transition signal control processor using transition signal control unit Transition signal control for creating asynchronous timing is provided using a transition signal control circuit, which includes Muller C elements each with an inverter. The control device is constituted by a machine ring including n-stages of transition signal cont... | 07/04/2006 |
| 7061296 | Circuit arrangement for generating a digital clock signal A circuit arrangement for generating a digital clock signal which manages without a crystal oscillator and has a low current consumption. The circuit arrangement includes: a transistor circuit having a first, n-channel FET transistor and a second, p-channel FET tran... | 06/13/2006 |
| 7053696 | Semiconductor device with resistor element A semiconductor device includes first, second, third and fourth resistor elements. The first to fourth resistor elements have first ends commonly connected to a first node, and operate in one of first and second operation modes which are switchable. The first and se... | 05/30/2006 |
| 7049875 | One-pin automatic tuning of MOSFET resistors Methods and apparatus for automatic tuning of MOSFET resistors providing accuracy and linearity throughout process and temperature variations. In accordance with the methods, the source and drain of a MOSFET device are biased in a balanced manner around a common mod... | 05/23/2006 |
| 7049797 | Semiconductor integrated circuit device In a semiconductor integrated circuit device, having a pair of voltage step-down power supply circuits for active and standby conditions, a first reference voltage is formed by amplifying a fixed voltage formed in a fixed voltage generating circuit with an amplifyin... | 05/23/2006 |
| 7038538 | Folded cascode high voltage operational amplifier with class AB source follower output stage An operational amplifier comprises multiple stages. A differential input stage that includes an adaptive high voltage differential pair generates up and down output currents in response to up and down input voltages. The differential input stage includes adaptive co... | 05/02/2006 |
| 7038486 | Semiconductor integrated circuit device A plurality of sets of circuits are provided, each of which generates an impedance code through the use of an impedance control circuit in association with a resistive element connected to an external terminal, and each of which varies the impedance in accordance wi... | 05/02/2006 |
| 7031683 | Apparatus and methods for calibrating signal-processing circuitry A calibration circuitry includes an adjustable capacitor, a voltage generator, a reference voltage generator, and a controller. The reference voltage generator provides a reference voltage. The voltage generator provides a measurement voltage that depends on the cap... | 04/18/2006 |
