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| Number | Title | Issue Date |
| 7321257 | Semiconductor device capable of detecting an open bonding wire using weak current An IC chip has a series regulator built therein. A battery voltage is applied to an input pin. An output of a transistor constituting the series regulator occurs at an output pin via an output pad. A feedback signal derived from an output voltage occurs at an end of... | 01/22/2008 |
| 7034581 | Voltage detecting circuit A voltage detecting circuit that has a stable output even when a battery voltage is low includes first and second terminals connected across poles of a battery, a reference voltage generating circuit, and a comparator for comparing values of the reference voltage an... | 04/25/2006 |
| 6504499 | Analog-to-digital converter having positively biased differential reference inputs An analog-to-digital converter includes a plurality of comparators that each have an output, two analog data inputs coupled to a differential analog data input, and two reference voltage inputs. The two reference voltage inputs are each coupled to a resis... | 01/07/2003 |
| 6424183 | Current comparator The present invention discloses a current comparator having simple, cheap and fast characteristics, especially discloses a current comparator having a small dead zone and excellent driving capability. The current comparator of the present invention compri... | 07/23/2002 |
| 6014044 | Voltage comparator with floating gate MOS transistor This invention relates to a voltage comparator with an input for an analog signal and an output for a digital signal, comprising an inverter which has an input coupled to the comparator input and an output coupled to the comparator output, and comprising ... | 01/11/2000 |
| 5929658 | Current-mode sense amplifier A current-mode sense amplifier includes a current mirror circuit having an input branch controlled by a current input signal to be sensed and an output branch connected to a capacitor. The output branch and gates of current mirror transistors are connecte... | 07/27/1999 |
| 5873053 | On-chip thermometry for control of chip operating temperature Temperatures on a chip, including particular regions of a chip are monitored by sensing changes in sub-threshold conduction of a field effect transistor (FET) integrated on the chip due to changes in charge carrier population distribution with temperature... | 02/16/1999 |
| 5783961 | Inverted amplifying circuit The present invention has an object to provide an inverted amplifying circuit with improved accuracy of output and reduced electric power consumption. In an inverted amplifying circuit according to the present invention, a MOS switch is connected between ... | 07/21/1998 |
| 5684417 | Data sensing apparatus of a read only memory device A data sensing apparatus particularly useful for sensing a ROM device. The apparatus can be used with various voltage level devices because it has an adjustable load. A first load element is connected to the voltage source applied to the ROM device. A sec... | 11/04/1997 |
| 5486779 | Sense amplifier An improved sense amplifier is disclosed employing bleeder and dampening devices coupled in a robust feedback configuration for maintaining a relatively narrow and stable voltage level above the high threshold of the sense amplifier.... | 01/23/1996 |
| 5170076 | Threshold comparator immunized against noise A threshold comparator counts the instances when an alternating periodic signal crosses a level. To prevent false counts due to fluctuations in supply and ground potentials, a dual threshold comparator is constituted by a first inverter and a second inver... | 12/08/1992 |
| 5140187 | Regenerative comparators A comparator includes a differential stage based upon transistors Q3 and Q4, the differential stage being adapted to receive via a pad an input Vin, being a signal to be compared with a reference input Vref received via a second pad.... | 08/18/1992 |
| 5036223 | Inverter circuit and chopper type comparator circuit using the same An inverter circuit according to this invention includes n- and p-type field effect transistors having predetermined wiring resistances and gates and drains connected with each other, a first power source connected to the source of the n-type field effect... | 07/30/1991 |
| 4695748 | Comparing device A comparing device comprises a first CMOS inverter (6) for detecting a difference between a voltage to be compared (Vin) and a reference voltage (Vref), a second CMOS inverter (9) connected directly to the first CMOS inverter (6) and a third CMOS inverter... | 09/22/1987 |
| 4691189 | Comparator with cascaded latches In a comparator circuit, first and second latchable circuits are connected in cascade between the output of an amplifying stage and the input of a decoder to enable the comparator to operate at significantly higher frequencies with lower error levels. An ... | 09/01/1987 |
| 4629911 | Latching comparator A comparator includes a source degenerated latching differential amplifier and an input differential amplifier interconnected in stacked fashion and connected with the input amplifier having inverting and non-inverting outputs coupled respectively for pos... | 12/16/1986 |
| 4617473 | CMOS backup power switching circuit A load circuit is provided with a backup power supply to power the essential functions of the load in the event that its primary power supply fails or is otherwise degraded. The positive terminals of both the primary power supply and the backup power supp... | 10/14/1986 |
| 4532438 | Monolithically integrable MOS-comparator circuit A circuit of a monolithically integrable MOS-comparator has a capacitor, a signal input and a reference input of the comparator being alternatingly connected to the capacitor via respective first and second clock-controlled transfer transistors, a first a... | 07/30/1985 |
| 4500841 | Universal instrument flag receiver A flag receiver circuitry for either a low level or a high level flag input is described. By utilizing the common mode rejection capability that must be incorporated in a differential flag receiver circuit, the same circuit can be connected as a single en... | 02/19/1985 |
| 4443717 | High resolution fast diode clamped comparator An electronic comparator circuit (10) adapted for implementation as an integrated circuit semiconductor device provides high resolution and high speed performance. The circuit comprises a first differential amplifier (12) with clamping diodes (50, 52) tha... | 04/17/1984 |
| 4438349 | Hysteresis circuit having a stable output free from noise superposed on input signal A hysteresis circuit has first and second input terminals and an output terminal. An input signal is supplied to the first input terminal, while the second input terminal receives a reference voltage. Control electrodes of first and second transistors are... | 03/20/1984 |
| 4410813 | High speed CMOS comparator circuit A high speed comparator comprising an operational amplifier and two inverter portions is provided. The output voltage of the operational amplifier biases a control transistor coupled to the first inverter portion which is coupled to the operational amplif... | 10/18/1983 |
| 4403159 | Circuit for evaluating signals A circuit for evaluating signals has an operational amplifier and a comparator, both of which are supplied by a voltage source connected to ground at one side. The reference inputs of the amplifier and comparator are respectively connected to different ta... | 09/06/1983 |
| 4316105 | Comparator A comparator for comparing the relative magnitudes of first and second voltages and for providing a binary output indicative of which of the voltages is the greater. The voltages are applied sequentially to a capacitor during first and second periods resp... | 02/16/1982 |
| 4195240 | Voltage comparator circuit having dead zone Disclosed is a voltage comparator circuit in which an input voltage and a predetermined reference voltage are compared by a differential amplifier to produce a signal corresponding to the difference between both the voltages. The width of a dead zone of t... | 03/25/1980 |
| 4055777 | Window comparator A window comparator comprising two operational amplifiers, a first one with two feedback circuits, each feedback circuit having a diode connected to the amplifier output and poled for forward current conduction of opposite polarity, to provide an algebrai... | 10/25/1977 |
| 4024415 | Detecting device for detecting battery outlet voltage A detecting device for detecting battery output voltage comprises a voltage detector having at least a pair of MOS transistors connected in series such that at least one of said MOS transistors shifts to its conductive state when the battery output voltag... | 05/17/1977 |
