Class 327/315 - Providing constant input/output amplitude level ratio

Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter including maintenance of the ratio of the
No. of patents: 38
Last issue date: 04/06/2010

Number	Title	Issue Date
7692468	Voltage clamp An active over-voltage clamp system includes at least one over-voltage detector that is responsive to an input voltage and provides a first current. The system also includes a replica over-voltage circuit that provides a second current, and circuitry subtracting the...	04/06/2010
7375574	Semiconductor device A semiconductor device includes a differential level converter circuit that receives a first signal and outputs a second signal of greater amplitude. The differential level converter has a first MISFET pair for receiving the first signal, a second MISFET pair for en...	05/20/2008
7352228	Method and apparatus of a level shifter circuit with duty-cycle correction A method and/or a system of control signal synchronization of a scannable storage circuit is disclosed. In one embodiment, a system includes a first circuit to operate based on a first voltage of a first power supply, a second circuit to operate based on a second vo...	04/01/2008
7239169	Semiconductor apparatus capable of preventing occurrence of multiple reflection, driving method, and setting method thereof A semiconductor apparatus comprises a resistor formed in a driver to connect a driving device to a transmission line connecting the driver to a receiver. The resistor has resistance considerably larger than on-state resistance of the driving device on condition that...	07/03/2007
7161405	Level shift circuit A level shift circuit includes first and second inverters and an inversion circuit. The first inverter has a first input terminal and a first output terminal for generating the output signal. The first inverter includes a first transistor having a first current driv...	01/09/2007
7102410	High voltage level converter using low voltage devices A circuit for converting an input signal at a first voltage level to an output signal at a second voltage level uses only thin oxide transistors. The circuit includes a first unit operating at a first power supply voltage and receiving the input signal, a second uni...	09/05/2006
6784702	Driver circuit with dynamically adjusting output current and input current-limiting function The present invention provides a Driver circuit having dynamically adjusting output current and limiting input current function. This present invention dynamically adjusts the output current provided by the driver unit to reduce this output current in real time. A p...	08/31/2004
6646470	High speed output buffers using voltage followers An output buffer is provided in the form of a voltage follower having a positive input that receives a reference voltage, a negative input and an output coupled together, and a control input that turns the voltage follower on and off. The output is couple...	11/11/2003
6476668	Fast-setting, low power, jammer insensitive, biasing apparatus and method for single-ended circuits A single-ended circuit, such as an LNA (300), in accordance with the present invention includes an input power matching circuit (310) and a bias circuit (305) connected to an output transistor (Qin) which provides the amplification. A degenerat...	11/05/2002
6469543	High speed output buffers using voltage followers An output buffer is provided in the form of a voltage follower having a positive input that receives a reference voltage, a negative input and an output coupled together, and a control input that turns the voltage follower on and off. The output is couple...	10/22/2002
6441639	Circuit module connected to a transmission line including arrangement to suppress reflections at a branch point of the transmission line A signal transmitting circuit includes one or more circuit blocks having a driving circuit and an intra-block transmission line for transmitting a signal produced by the driving circuit, one or more circuit blocks having a receiving circuit and an intra-b...	08/27/2002
6400204	Input stage ESD protection for an integrated circuit An integrated circuit is disclosed in which a steering diode is coupled between an input bond pad and a ground bond pad. The steering diode is reverse biased when a voltage applied to the input bond pad exceeds the voltage at the ground bond pad. A circui...	06/04/2002
6377490	Nonvolatile semiconductor memory device and method for driving the same A memory transistor and a select transistor are disposed side by side on a semiconductor substrate between source/drain diffusion layers thereof, with an intermediate diffusion layer interposed therebetween. The memory transistor includes: a gate insulati...	04/23/2002
6331962	Semiconductor device including voltage down converter allowing tuning in short period of time and reduction of chip area When a tuning mode signal VTUNE is activated, control clock signal TCLK is output, and counter counts up tuning signals TSIG1 to TSIG4. Tuning circuits render conductive the terminals of respective transistors, and reference potential Vref lowers in accor...	12/18/2001
6218894	Voltage and/or current reference circuit A reference circuit contains a PTAT (Proportional To Absolute Temperature) core. In the PTAT core there is a difference between the currents densities flowing through a first and second transistor. This difference results in a difference in junction volta...	04/17/2001
6184737	Signal transmission with reduced ringing of signals A signal-transmission system includes signal-transmission lines connected to a terminal voltage via terminal resistances, open-drain-type transistors outputting signals to the signal-transmission lines, branch lines stemming from the signal-transmission l...	02/06/2001
6144250	Error amplifier reference circuit An error amplifier circuit is provided having a pair of current mirror transistors driven by a pair of current sources, where one of the current mirror transistors operates at a lower current density than the other, and further having a resistor in an emi...	11/07/2000
6069503	High value FET resistors on a submicron MOS technology A method and apparatus of biasing a transistor to perform as a resistive device in an integrated circuit die is disclosed. A base lead of a transistor is coupled to a first lead of the transistor. A voltage is applied to a first lead such that the voltage...	05/30/2000
5955908	Fast, low output impedance, low-impedance, low-power clamp circuit for a switched complementary emitter follower A fast, low output impedance, low-power clamp circuit for a switched complementary emitter follower includes a current mirror circuit and two transistors. In operation, high current is provided to allow for fast switching when turning off the complementar...	09/21/1999
5933040	Method and apparatus for a data detection circuit operating from a low voltage power source A method and apparatus for detecting pulse data is accomplished by a low voltage data detection circuit that includes a preamplifier circuit, an amplification stage, and a scaling circuit. The preamplifier circuit has a differential input, a predefined ga...	08/03/1999
5910749	Current reference circuit with substantially no temperature dependence A bipolar or MOS current reference circuit is provided, which generates a reference current having no temperature dependence and which is able to be operated by a single battery having a supply voltage of approximately 1 V. This circuit includes a first t...	06/08/1999
5657097	Method and apparatus for generating a peaking signal A coring circuit for an input signal in the form of a differential input current having two components in phase opposition. A first pair of cascode transistors biased by a first reference voltage applies a first fraction of each of the components of the d...	08/12/1997
5594688	Nonvolatile semiconductor memory device and method of producing the same A nonvolatile semiconductor memory device has a semiconductor substrate of a first conductivity type, at least a pair of element isolation insulating films and a pair of spaced source/drawn regions of a second conductivity type different from the first co...	01/14/1997
5548226	Fast transmission line implemented with receiver, driver, terminator and IC arrangements A signal transmitting circuit includes one or more circuit blocks having a driving circuit and an intra-block transmission line for transmitting a signal produced by the driving circuit, one or more circuit blocks having a receiving circuit and an intra-b...	08/20/1996
5457406	Bidirectional signal transmission circuit and terminator In such a bidirectional signal transmission circuit in which the transmitter circuit of the logic circuit elements used in the conventional single end transmission circuit can be utilized by setting an impedance of an end circuit to be a value greater tha...	10/10/1995
5444409	Interface circuit for linking microprocessors An interface circuit for linking microprocessors, intended to limit the current (Iout) in the link (L1-L2) by inserting in the link the emitter-collector path of a first transistor (T1) which is in the saturated state during operation. This cir...	08/22/1995
5262688	Operational amplifier circuit An operational amplifier circuit having a phase-compensating capacitor disposed between the output of an amplifier circuit as a first stage and the output of an amplifier circuit as a second stage is provided with a potential holding circuit for maintaini...	11/16/1993
4970409	Voltage multiplier for nonvolatile semiconductor memory A voltage multiplier for a use in a non-volatile semiconductor memory and operated at a low operation voltage with a reduced area comprising a plurality of cascade-connected basic circuits....	11/13/1990
4847518	CMOS voltage divider circuits A CMOS fractional reference source or voltage divider circuit includes a string (chain) of CMOS pairs of transistors connected with their source-drain circuits in series and with ends of the string being connected across an input power (voltage) supply. T...	07/11/1989
4616143	High voltage bootstrapping buffer circuit A logic circuit comprises a first MOS transistor of a first conductive type having a gate connected to an input/output line and a source connected to a first power source, a second MOS transistor of a second conductive type having a gate connected to the ...	10/07/1986
4525675	Ultra linear frequency discriminator circuitry Signals to be discriminated are supplied through a controllable attenuator and power splitter to first and second discriminators with response slopes which are equal and of opposite sign. The outputs of the discriminators are summed and a reference signal...	06/25/1985
4380711	Linearization circuit A two terminal transfer linearization circuit is provided for linearizing the AGC voltage of an AGC amplifier by providing a selectively controllable nonlinear current-vs-voltage response curve with adjustable curvature. A pair of end terminals have a fir...	04/19/1983
4298811	MOS Voltage divider A simple MOS voltage divider uses three enhancement MOS transistors, which includes one load connected to two drivers in parallel. The gate of one driver is connected to the output node, and the other two gates are connected to the supply voltage. The tra...	11/03/1981
4249087	Power supply arrangement for a number of functional units distributed along a transmission line A power supply system for a number of functional units distributed along a transmission in which each unit gets its supply from a constant voltage circuit connected across the transmission line. Each unit may have a low power and a high power state. The p...	02/03/1981
4167681	Microwave power limiter comprising a dual-gate FET A microwave power limiter for generating an output RF signal of substantially constant power level in response to an input RF signal of varying power level comprises a dual gate field effect transistor (FET). The FET is biased such that the RF power outpu...	09/11/1979
4142110	Circuit to eliminate DC bias A passing circuit for coupling a signal portion and suppressing a DC component included in a composite input signal, includes a transistor having a substantially constant output signal for a variable input signal at a predetermined operating point, and bi...	02/27/1979
4077044	Nonvolatile memory semiconductor device Disclosed is a field-effect transistor device which is capable of storing pieces of analogue information in the form of charge stored in a charge-storing means. A memory device according to this invention comprises, drain and source regions in a semi-cond...	02/28/1978
3962591	Voltage doubler circuit A voltage doubler circuit is disclosed which uses only resistive, capacitive and semiconductive components. The circuit, which is extremely rugged and reliable and is ideally suited for miniaturization, includes a pair of transistors for controlling the c...	06/08/1976

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Class 327/315 - Providing constant input/output amplitude level ratio