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4617549 Monolithically integrable MOS-comparator circuit  
An integrated semiconductor circuit for an analog-to-digital converter according to the parallel method, includes a multiplicity of identical comparators and a multiplicity of NOR gates. The...
4612531 Intermeshed resistor network for analog to digital conversion  
In an A/D converter, a resistive network for producing 2 n different voltage steps. The resistive network includes a coarse relatively high impedance resistive string which is subdivided into 2 x ...
4608555 Analog to digital flash converter  
An analog to digital flash converter provides a multiple bit, parallel output arranged in more significant to less significant bits. The converter includes a voltage to current converter for...
4600916 Parallel analog-to-digital converter circuit  
A parallel analog-to-digital converter circuit comprises a plurality of level comparator circuits and a plurality of detectors. The level comparator circuits compare the level of one analog input...
4596976 Integrated circuit analog-to-digital converter  
An analog-to-digital converter in the form of an integrated circuit providing a plurality of parallel-connected sub-converters, each producing one bit of the output word. For any sub-converter, an...
4596978 Parallel comparison type analog to digital converter  
A parallel comparison type A/D converter which can produce a digital output with improved monotonic operation. The A/D converter comprises a plurality of comparators for comparing an analog signal...
4591830 Comparator cell for analog-to-digital flash converter  
A comparator cell for analog-to-digital flash converters is provided that reduces power dissipation and peak voltage drop across a load while improving accuracy. An even number of level sensors are...
4591825 Analog-to-digital-converter and related encoding technique  
A parallel analog-to-digital converter employing a novel binary encoding technique to reduce the errors arising from multiple one-to-zero transitions in comparator outputs. An analog signal to be...
4570121 Video wave codec  
An analog-to-digital converter circuit is disclosed employing a plurality of comparators each having the same reference voltage input. At each comparator stage plus and minus binary "bit weights"...
4559522 Latched comparator circuit  
A latched comparator circuit is disclosed in which a voltage comparator circuit of a differential construction composing a part of the latched comparator circuit is substituted for by a plurality...
4547763 MOS Parallel A/D converter  
For the dynamic compensation of the offset voltage in such converters each non-inverting comparator input (+) is connected via a first transfer transistor (T11, T12, T1p) to the signal input (SE)...
4533903 Analog-to-digital converter  
An analog-to-digital converter for converting an analog input voltage signal to a digital output voltage signal of m upper bits and n lower bits includes at least (2 m +n -1) resistors connected in...
4509036 A/D Converter with bit extension capability using wired-OR outputs  
A parallel comparator includes a plurality of comparator portions each having first and second transistors differentially connected. The first transistors have their bases connected to receive an...
4507649 Flash A/D converter having reduced input loading  
A flash analog-to-digital converter includes 2 N comparator circuits for an N bit resolution. Each comparator comprises a summing capacitor which is alternately connected to a reference ladder and...
4496935 Analog-digital converter with linear characteristic restoration circuit  
A parallel type analog-digital converter having a plural number (1023) of comparators, a first voltage divider comprising a plural number (1023) of resistors (R 1 to R 1023 ) connected in series...
4449118 Switching circuitry as for a flash A/D converter  
A flash type A/D converter has a plurality of transistor switch means for alternately connecting respective ones of a plurality of reference potentials or input signal to a plurality of summing...
4430642 Digital-to-analog converter  
Apparatus for decreasing effect of transition of more significant bits in D/A converter reference of A/D converter. A pair of D/A converters are connected in tandem to eliminate transition of more...
4420743 Voltage comparator using unequal gate width FET's  
The threshold comparator includes a switching FET including a gate electrode and a load FET connected in series across a source of potential where the load FET is configured to provide a saturation...
4417233 Fully parallel threshold type analog-to-digital converter  
A parallel type A/D converter capable of operating at an extremely high speed with a high degree of accuracy and with low power consumption. A plurality of comparators each having a reference...
4393372 Parallel analog-to-digital converter  
In a parallel analog-to-digital converter wherein the comparator inputs are switched between +1/2 the voltage corresponding to the least significant bit and -1/2 said voltage. There is provided a...
4393368 Multithreshold A/D converter utilizing error amplifiers  
A multithreshold A/D converter utilizes a plurality of error amplifiers interspersed in a primary quantizing stage for selectively deriving a signal to be quantized in a secondary stage. Because...
4386339 Direct flash analog-to-digital converter and method  
A direct flash converter has independent parallel analog-to-digital encoders for each bit. Cross-coupled level sensors are coupled to a single comparator within each bit encoder to provide a...
4365236 Digital display circuit displayable in analog fashion  
A display circuit for displaying analog input voltages in a digital fashion using a parallel comparison type analog-digital converter includes a voltage generator for generating a plurality of...
4353059 Multithreshold converter utilizing reference tracking amplifiers  
A multithreshold A/D converter has primary and secondary quantizing stages. The threshold reference voltages for the secondary quantizing stages are obtained by amplifying a threshold reference...
4334745 Exposure indicating device for a camera utilizing analog-digital converter  
An indicator arrangement includes comparators for parallel comparison of an analog input voltage with digitalizing standard voltages to digitalize the input voltage and an indicator for indicating...
4319227 Three state signaling system  
Digital information transmission system components including at least one unit arranged to transmit signal elements in parallel, at least one unit arranged to receive signal elements in parallel,...
4308098 Method of electrically converting an analog signal into a digital representation  
A method is described for electrically converting an analog signal into a digital representation in a manner that maximizes noise rejection. The digital representation is formed from a preselected...
4305064 High density analog-to-digital converter  
Combining integrated injection logic (I 2 L) and linear circuitry permits fabrication of a highly dense analog-to-digital (A-to-D) converter. The heart of the A-to-D converter is a linear-I 2 L...
4295123 Analog-to-digital converter  
An analog to digital converter device is disclosed. The device includes a plurality of serially connected stages representing bits, each stage including generally a source of current or fluid and a...
4276543 Monolithic triple diffusion analog to digital converter  
A parallel analog-to-digital converter having high speed and high resolution, fabricated on a single integrated-circuit chip in such a manner as to avoid problems typically associated with high...
4275386 Binary analog-digital converter  
An analog-digital converter supplying a digital output signal in natural or reflected binary code, having an input stage, n consecutive conversion stages comprising two parallel channels of...
4270118 Parallel analog-to-digital converter  
An analog signal is converted into an n bit digital signal by n comparator circuits which compare the analog input to 2 n -1 reference inputs. Each comparator output alternates as the analog...
4262282 Indicator arrangement utilizing analog-digital converter  
An indicator arrangement includes comparators for parallel comparison of an analog input voltage with digitalizing standard voltages to digitalize the input voltage and an indicator for indicating...
4229729 Analog to digital converter utilizing a quantizer network  
A quantizer network is disclosed for decoding an analog signal and providing a four-bit digital output. The analog input signal is divided or quantized into sixteen discrete voltage ranges and...
4227183 Analog to digital converting device  
In an analog to digital converting device having plural converting stages provided for converting an analog signal to a multi-bit digital signal, the lowest or just preceding converting stages,...
4225854 High density analog-to-binary coded decimal converter  
The combination of integrated injection logic (I 2 L) and linear circuitry permits fabrication of a highly dense analog-to-binary coded decimal (A-to-BCD) converter. The heart of the A-to-BCD...
4220275 Fastener selection system  
An automatic fastener selection apparatus for sensing the composite thickness of a plurality of workpieces, determining which one of a plurality fastener sizes is appropriate for joining the...
4217574 Analog to digital converter having nonlinear amplitude transformation  
An analog to digital converter simultaneously digitizes a gamma corrected analog video signal and removes the gamma correction. The converter has a plurality of parallel analog comparators which...
4194186 Digital hysteresis circuit  
Noise induced hunting is eliminated in successive ranged digital/analog converter bias correction circuits by means of a digital hysteresis circuit. The digital hysteresis circuit comprehends a...
4189714 Analog-to-digital circuit with adjustable sensitivity  
An analog-to-digital converter of the type using a plurality of voltage comparators, each, in response to an applied reference voltage and an analog voltage to be digitized, producing one of two...
4183016 Parallel analog-to-digital converter with increased resolution  
An analog-to-digital converter of the type including a sample-and-hold circuit for sampling an analog signal during predetermined cycles to produce periodically sampled voltages, a source of...
4180806 Arrangement, in particular an analog-digital converter and method of operation thereof  
An arrangement, particularly an analog-digital converter having a resistance line or chain, and a plurality of voltage comparators, each preferably comprising an insulator-layer, field-transistor...
4131885 Parallel-serial analog to digital converters  
In an analog to digital converter in which each sampled portion of an incoming video or other analog signal is converted to a digital character in a plurality of parallel conversions occurring...
4122439 Serial parallel type analog to digital converting device  
A serial parallel type A-D converting device having high accuracy and a simplified multi-stage configuration for correcting errors caused by d.c. drift or gain drift in a preceding stage, so as to...
4110745 Analog to digital converter  
An analog to digital converter used for converting such an analog signal having dc parts of a constant level periodically as a television picture signal, comprising a plurality of comparators...
4091379 Analog to digital wave shaping system  
An analog to digital wave shaping system comprising, a source of analog signals, adaptive threshold circuitry coupled to said source, said adaptive threshold circuitry having an output selected as...
4091378 Arrangement, in particular an analog-digital/digital-analog converter and method of operation thereof  
An arrangement, particularly an analog-digital/digital-analog converter having a resistance line or chain, and a plurality of voltage comparators, each preferably comprising an insulator-layer,...
4086579 Video digital display device with analog input  
An analog-to-digital converter includes a common input amplifying device such as a transistor in differential amplifier relationship with each of a plurality of output amplifying devices, one for...
4084111 Apparatus for the digital control of analog signal  
A digital-analog converter electrically effecting sequential switching between a reference voltage point and each of the connection points formed in a circuit network composed of serially connected...
4058806 Analog/digital converter  
A procedure for the parallel conversion of an analog signal to a cyclic binary code with one comparison to a threshold per channel, or bit, in which each channel is composed of an analog function...