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7598762 |
Semiconductor driver circuit with signal swing balance and enhanced testing
A semiconductor driver circuit includes impedance units for generating impedances at data pads, independently of each-other. Thus, signal swing widths of data signals generated at the data pads may...
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7598793 |
Capacitance multiplier circuit
A capacitance multiplier circuit is configured to sense a current through a capacitor in an RC filter of the circuit and to multiply the current so as to achieve a capacitance multiplier effect...
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7592855 |
Trimming circuit and semiconductor device
A trimming circuit is disclosed. The trimming circuit includes a first trimming circuit having resistors and fuses, and a second trimming circuit having a resistor, an NMOS transistor, and a...
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7583127 |
High Q linear controlled variable capacitor using translinear amplifier
A voltage controlled variable capacitor, formed of a larger number of fixed capacitor segments and a corresponding number of switching elements, uses translinear amplifiers to control each...
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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...
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7545197 |
Anti-logarithmic amplifier designs
An anti-exponential amplifier produces an output signal that is an exponential/anti-logarithmic function of an input signal. The amplifier includes three function generators and a low-pass filter....
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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...
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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...
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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...
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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...
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7190205 |
Variable resistance circuit
Values of control signals 61, 62, 63, . . . , 6 n , each inputted to an input terminal for operation control 6 of each of transistor elements 4 constituting a variable resistance portion 2 ,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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7002435 |
Variable capacitance circuit, variable capacitance thin film capacitor and radio frequency device
There is disclosed a variable capacitance circuit which comprises: first to Nth variable capacitance elements C 1 -CN (N is an odd number) sequentially connected in series between an input terminal...
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6963238 |
Level shift circuit
A high-precision and high-performance level shift circuit, which is not adversely influenced by an offset error owned by an operational amplifier. Two sets of resistors ( 4 o ) and ( 4 p ) having...
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6930540 |
Integrated circuit with voltage divider and buffered capacitor
An integrated circuit has a voltage divider that is configured to save current. The circuit includes a capacitor that is inventively connected to a potential sink or potential source by way of a...
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6822502 |
Variable impedance circuit
A variable impedance circuit has an impedance block including a plurality of MOS transistors connected in parallel by switching and having impedances in accordance with powers of 2, the powers...
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6815998 |
Adjustable-ratio global read-back voltage generator
A voltage generation circuit for generating a read-back voltage in response to a supply voltage and a reference voltage. The voltage generation circuit includes a comparator configured to receive...
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6803811 |
Active hybrid circuit
A hybrid circuit has a transfer function having three zeros and four poles that are realized using only two fully-differential amplifiers in combination with a small plurality of resistors and...
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6774703 |
Semiconductor device
Even in the case where the reference voltage of a reference-voltage generating circuit is adjusted by fuses, a number of fuses are required to be disconnected, and the area of fuse circuits tends...
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6754480 |
Baseband analog circuit with improved noise characteristics
A baseband analog circuit includes a demodulator to demodulate a received signal and to output a baseband analog signal, a low-pass filter to filter the demodulated baseband analog signal, and an...
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6686789 |
Dynamic low power reference circuit
A dynamic low power reference circuit includes a reference source for generating a reference voltage and/or a reference current. The reference circuit further includes an activity detector...
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6677801 |
Internal power voltage generating circuit of semiconductor device
An internal power voltage generating circuit of a semiconductor device includes a voltage dividing circuit composed of a single field effect transistor and a plurality of resistances incorporated...
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6674321 |
Circuit configuration for DC-biased capacitors
A capacitive element includes two or more voltage-variable capacitors (varactors). The varactors are configured so that they are coupled in series with respect to an applied AC signal and are...
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6633193 |
Method of forming a switching device and structure therefor
A switching device ( 20 ) is formed to generate a ramp voltage by using a capacitor ( 48 ) formed on the semiconductor die ( 90 ) with the switching device ( 20 ). The switching device ( 20 )...
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6614284 |
PNP multiplier
A method and apparatus are directed to emulating an emitter follower with a small PNP transistor that is arranged in a PNP multiplier configuration. The PNP multiplier includes a PNP emitter...
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6597230 |
Electronic device
A circuit for measuring the power supplied by a voltage source supplying a sine-shaped voltage by averaging the multiplication of the instantaneous value of the current supplied by the voltage...
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6518814 |
High-voltage capacitor voltage divider circuit having a high-voltage silicon-on-insulation (SOI) capacitor
A high-voltage capacitive voltage divider circuit includes a high-voltage Silicon-On-Insulator (SOI) capacitor connected between a high-voltage terminal and a low-voltage terminal, and a...
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6507232 |
Semiconductor device which can be set to predetermined capacitance value without increase of delay time
A semiconductor device includes an input and output section, an internal circuit section, and a capacitance section. A signal is inputted to or outputted from the input and output section. The...
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6462609 |
Trimming circuit of semiconductor apparatus
A relatively compact trimming circuit for hypothetically breaking a fuse includes a resistance bypass circuit connected to a node between a resistor and a fuse. The bypass circuit selectively...
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6459320 |
Impedance matching circuit for semiconductor memory device
An importance matching circuit for a semiconductor memory device includes an impedance detector for generating a voltage divided by a medium resistance value between a maximum resistance value and...
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6437629 |
Semiconductor device with circuit for adjusting input/output terminal capacitance
A semiconductor device of the invention comprises: an external terminal; an internal circuit connected to the external terminal; a MOS transistor whose gate terminal or common terminal of the drain...
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6417702 |
Multi-mode current-to-voltage converter
A method and circuit are provided to perform current-to-voltage conversions. The circuit is operational in one linear mode based on channel-length-modulation effects in the saturation region and...
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6396328 |
Variable capacitance circuit
A variable capacitance circuit enables electrostatic capacity to be adjusted as a trimmer capacitor, and that enables a temperature characteristic to be set variably. An input voltage is made to...
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6347392 |
Method for the control of an electronic circuit and control unit for its implementation
A method for the control of an electronic circuit of the type includes at least one access pin to receive and/or deliver control signals, includes the generation, in a control unit, of control...
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6310567 |
Programmable configuration, level and output voltage range circuits and methods for signal processors
A signal processor circuit which receives an input signal and two control words and is programmable to vary the level and the output voltage range of the output signal is provided. The signal...
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6281740 |
Connecting arrangement for selectively presenting resistive properties using transistors
A connecting arrangement includes a number of NMOS transistors that can be activated or deactivated by means of a control voltage, serving as a control signal, connected to the gate terminals of...
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6275090 |
Adaptive resistor trimming circuit
An integrated circuit includes a self-calibrating resistor circuit comprising a resistor string, a comparator, a state machine, a reference voltage source, and a reference current source. The...
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6255868 |
Buffer circuit and hold circuit
An object is to reduce the offset voltage between the input and output in a wide range of output current with a simple circuit configuration. Transistors (Q1), (Q2) and (Q3) have a size ratio of...
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6157241 |
Fuse trim circuit that does not prestress fuses
A fuse trim circuit includes: a fuse 40; and a logic gate 55 having a first input coupled to the fuse 40 and a second input coupled to a logic code such that the logic code bypasses the fuse 40 to...
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6060934 |
Cell including a pseudo-capacitor, in particular for an artificial retina
A cell incorporated in an integrated circuit and having an input node behaves as a capacitor vis-a-vis the relation between the current entering the input node and the pseudo-voltage at the input...
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6058294 |
Adjustable frequency stabilizing internal chip capacitor system
A transmitter system having an adjustable monolithic frequency stabilization and tuning internal capacitor circuit. The transmitter system has a transmitter for generating and transmitting a...
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6040641 |
Method for manufacturing probabilistic switch using multiplicative noise
A method for manufacturing a probabilistic switch using multiplicative noise, which can be used in a probabilistic computer is disclosed. The probabilistic switch, in which the probability varies...
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