Class 327/82 - Plural sources of input signal

Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter wherein multiple input signals are to be
No. of patents: 44
Last issue date: 06/07/2011

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Number	Title	Issue Date
7956652	Semiconductor integrated circuit A semiconductor integrated circuit has a sampling circuit which samples a potential of an input terminal, a dynamic comparator having a standby and a comparison mode which compares the potential of the input terminal and a reference potential, a switch for input sig...	06/07/2011
7375559	Differential comparator with a replica input stage to set the accurate bias current for improved common mode rejection Methods and apparatus for properly biasing differential comparators are provided. Using a feedback relationship, a bias for a main stage that receives a first differential input of the comparator is produced. Separately, a feedback relationship produces a bias for a...	05/20/2008
7061304	Fuse latch with compensated programmable resistive trip point A fuse latch circuit with a current reference generator is described where the resistive switch point of the latch is stabilized against effects of manufacturing processing, operating voltage and temperature. A digital control word is used to select the desired resi...	06/13/2006
6965250	Reduced delay power fail-safe circuit An improved power fail-safe has an effective maximum delay of two gate delays from an input operably powered by a first power supply to a first and a second output operably powered by a second power supply. The first and second outputs have predetermined values duri...	11/15/2005
6956409	Reference voltage detector for power-on sequence in a memory System and method for detecting a reference signal. A preferred embodiment comprises a latch (such as the latch 320) and a filter (such as the filter 325). The latch tracks a reference signal at its input and reflects the reference signal at its output...	10/18/2005
6949964	Sub-micron high input voltage tolerant input output (I/O) circuit A method of providing bias voltages for input output connections on low voltage integrated circuits. As integrated circuit voltages drop generally so does the external voltages that those circuits can handle. By placing input and output devices, in series, external ...	09/27/2005
6822435	Comparator circuit for differential swing comparison and common-mode voltage comparison A comparator circuit includes at least one transconductance stage that receives two test voltages and two reference voltages. The transconductance stage produces two test currents that are proportional to the test voltages and two reference currents. A switching cir...	11/23/2004
6628146	Comparator circuit and method An apparatus and method for comparing two input voltages. The apparatus being a comparator circuit comprising a pair of series connected polycrystalline transistors, two capacitors and a switch, the switch being connected between the point of series conne...	09/30/2003
6617889	Signal amplitude comparator A signal amplitude comparator which includes a first differential input circuit that is biased, is configured to receive an input voltage and is configured to generate a first output current that is a non-linear function of the input voltage, a second dif...	09/09/2003
6335641	Automatic input threshold selector An automatic input threshold selector includes a maximum value level decision circuit, and an input threshold setting circuit. The maximum value level decision circuit decides, among m+1 level layers defined by m maximum value decision levels, a level lay...	01/01/2002
6194953	Circuit configuration for generating an internal supply voltage A circuit configuration generates an internal supply voltage for integrated circuits at two different levels, each of which are constant. The selection of the levels is made solely on the basis of the magnitude of an external supply voltage. As a result, ...	02/27/2001
5973515	Differential input stage for wideband reception with high rejection of common mode An integrated circuit comprises at least one differential input stage. The differential input stage includes an input circuit and a shaping circuit. The input circuit comprises a first portion and a second portion for providing two pairs of differential s...	10/26/1999
5821643	Synchronization control scheme for a plurality of switching circuits, method of operation therefor and battery plant employing the same A synchronization control scheme that provides a drive signal to a plurality of switching circuits and method of operation therefor. The synchronization controller, includes: (1) a plurality of dual threshold relaxation oscillators, coupled to a correspon...	10/13/1998
5714894	Current comparator arrangement A current comparator arrangement has first and second inputs (100, 103), an output (105), and cross-coupled transistors (MP1, MP2) which form a latching circuit. The arrangement also includes current stores (MP3, MP4), the input currents to be compared be...	02/03/1998
5646463	Synchronization control for interrelated DC voltage/battery polarity switching circuits A plurality of battery/voltage polarity switching circuits are constrained to operate in switching synchronism by a timing circuit associated with each polarity switching circuit that are interrelated to one another such that only the fastest response tim...	07/08/1997
5461334	Address transition detector circuit and method of driving same An address transition detector circuit according to the present invention comprises an input terminal, a one-shot pulse generator circuit having an input electrically connected to the input terminal, a first switching device electrically connected between...	10/24/1995
5448188	Signal processing device for providing a signal corresponding to an input signal and for providing a signal which does not correspond to the input signal A signal processing device for selectively producing as an output signal either a signal corresponding to an input signal r a signal which may be a fixed voltage level for muting purposes or a mixed signal. A current switch composed of pairs of differenti...	09/05/1995
5408143	Circuit for processing sensor signals A circuit for unambiguously indicating the presence and comparative values of output signals from a plurality of sensors includes first and second comparators respectively providing first and second comparison signals having high or low logic levels. A so...	04/18/1995
5381054	Multiple input comparator circuit for a switched resistive network A comparator circuit, for a switched resistive network which may be combined with a transconductance amplifier, simultaneously and independently compares a plurality of input voltages to a reference voltage. The circuit comprises a current splitter having...	01/10/1995
5272393	Voltage converter of semiconductor device In a voltage converter provided in a semiconductor device and supplying an internal supply voltage to a circuit in the semiconductor device, a circuit is provided for generating a first voltage whose dependency on an external supply voltage is regulated t...	12/21/1993
5262681	Trigger source switching circuit A trigger source switching circuit including a first switch system for a high frequency region, and a second switch system for a low frequency region. The first switch system is composed of a plurality of semiconductor switches having good frequency and i...	11/16/1993
5235224	Current detecting circuit using pulse transformer A detecting circuit is provided with at least one transformer, in which a first transformer is connected at its primary winding to an input power source and has two windings at its output portion to control the operation of two transistors respectively mo...	08/10/1993
5191235	Semiconductor integrated circuit device having substrate potential detection circuit A node potential V1 which is obtained by the division of an internal reference potential and a substrate potential and another node potential V2 which is obtained by the division of the internal reference potential and the ground potential are compared wi...	03/02/1993
5184028	Current compensating charge pump circuit A charge pump circuit (10) has been provided for maintaining the currents sunk by each of the bottom current sources (12, 14) substantially equal to the current sourced from a first upper current source (16). The present invention maintains the voltage ac...	02/02/1993
5182471	Hysteresis comparator In a hysteresis comparator for comparing an input Vin1 with another input Vin2, the comparator comprises a pair of first and second transistors. The gate of the first transistor is supplied with the input Vin1 and the gate of the second transistor is supp...	01/26/1993
5113091	Apparatus and method for comparing signals An amplifier includes an input circuit for alternately selecting input signals to be compared and a first bias circuit for producing self-bias when one of the input signals is selected. A second bias circuit stores the self-bias for use in the amplifier w...	05/12/1992
5047751	Power supply voltage monitoring circuit A power supply voltage monitoring circuit for use in a semiconductor circuit which is used with a plurality of power supply systems and is operable by switching the high and low power supply voltages, includes at least two power supply lines, a reference ...	09/10/1991
4871931	Logic circuit resistant to errors due to supply fluctuations An improved logic circuit is disclosed, of the type in which one or more input signals, generated by one or more input signal generator circuits, are referenced to a threshold voltage, determined by a threshold voltage generator circuit, to determine whet...	10/03/1989
4857761	Circuit for monitoring a plurality of analog quantities A circuit for monitoring a plurality of analog quantities which provides signals for exceeding of threshold values and utilizes a differential amplifier. One input of the differential amplifier is connected to a reference voltage source and the other inpu...	08/15/1989
4806789	Power select circuit A first node is connected to an external power source via a switch. A second node is connected to an internal power source whose voltage is lower than that of the external power source. The first and second nodes are connected to an output node via first ...	02/21/1989
4739658	Level sensing system A monitoring unit for remotely monitoring liquid levels in a container includes a common probe, a reference probe, and four sensing probes, each mounted to the container in electrical contact with liquid within the container. A liquid level sensing unit m...	04/26/1988
4665326	Voltage comparator A voltage comparator for an analog to digital converter is provided which includes several differential amplifier stages connected in cascade that determine the existence of a voltage difference between the two input signals and amplify this voltage diffe...	05/12/1987
4649292	CMOS power-on detecting circuit A CMOS power on detection circuit is described which includes pairs of complementary MOS transistors being connected in series between two supply lines. Each pair of transistors includes a long and a short channel transistor. Biasing the transistors by th...	03/10/1987
4587439	Pulse generator comprising at least two voltage comparison circuits A pulse generator for generating pulses having pulse edges at instants at which a varying amplitude input voltage is equal to one of at least two threshold values produced by a voltage source. The pulse generator has at least two voltage comparison circui...	05/06/1986
4555791	Method and apparatus for determination of the state of an all-or-none modulated alternating signal in a perturbed environment The state of an all-or-none modulated useful signal subjected to a perturbed environment is determined, on reception, through the use of non-modulated reference signals subjected to the same environment. The reference signals have respective frequencies n...	11/26/1985
4513207	Alternating comparator circuitry for improved discrete sampling resistance control A pair of comparators, each having the same reference potential at a first input, each have a second input alternatingly receiving different ones of first and second signals relating to the magnitude of a parameter to be controlled. The results of a first...	04/23/1985
4346339	Apparatus for automatic regulation of AC power A closed loop phase control circuit. The circuit senses the temperature of a load circuit. It also senses the line voltage on each line of a multi-phase system. The sensed line voltage is full-wave rectified. Comparators for each phase compare an input si...	08/24/1982
4224539	FET Voltage level detecting circuit There is provided a voltage level detecting circuit useful as power-up/power-down voltage indicator for a field effect transistor integrated circuit. A constant voltage reference generator is provided by a depletion type transistor in series with two enha...	09/23/1980
4215282	Temperature compensated sense amplifier for PROMs and the like A sense amplifier and sensing scheme for sensing the normal or blown condition of fuses in a programmable read only memory (PROM) or similar device. A sensing circuit is provided with a threshold level separating high and low input levels indicative of th...	07/29/1980
4205240	Device for progressive electrical switching The switching device delivers an electrical output signal having a mean amplitude which changes progressively from the amplitude of a first signal to that of a second signal. One control signal produced by a logical unit is applied to each control input o...	05/27/1980

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Class 327/82 - Plural sources of input signal