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7535280 Apparatus and method for shifting a signal from a first reference level to a second reference level  
An apparatus for shifting a received signal at a first reference level to an output signal at a second reference level; the received signal including information-indicating signal values; includes:...
7321242 Integrated circuit with breakdown voltage multiplier  
An apparatus and method for driving an output signal in a high speed integrated circuit. The apparatus and methods enable the output voltage swing from the driver to exceed the breakdown voltage of...
7307456 Automatic status assignment logic circuit apparatus for bay devices  
In accordance with the present invention, the circuit apparatus has a first and a second connection point each for respectively connecting to the first bay and second bay for communicating with...
6903576 Voltage level translator for translating low to high voltage levels in digital integrated circuits  
An improved low voltage to high voltage translator for digital electronic circuits providing reduced rise times, fall times and transition times that remain independent of operating conditions....
6696858 Level-shifting circuit  
A semiconductor integrated circuit device includes a level-shifting circuit, a current mirror circuit and a switch circuit. The level-shifting circuit level-shifts an input signal having a first...
6693457 Ultra high speed flip-flop  
An ultra high speed Emitter Coupled Logic (ECL) flip-flop is provided and a method of operating the same. The ECL flip-flop provides for clock levels that operate at logic levels above the data...
6693463 Current mode device and an arrangement  
The invention relates to a current mode device (CMD). The CMD comprises a first, a second and a third pairs of voltage controlled current sources (CCS). The first pair has an active load that is...
6693464 Low-voltage current mode logic circuits and methods  
A current mode logic (CML) circuit includes an emitter follower circuit, a CML gate, and a Schottky diode that is coupled between the emitter follower circuit and the CML gate. Methods and other...
6593774 CMOS-interfaceable ECL integrated circuit with tri-state and adjustable amplitude outputs  
An improved ECL circuit, based upon an ECL circuit of conventional design, functions as the required transceiver for the bi-directional data transmission between a computer and an electronic device...
6518789 Circuit configuration for converting logic levels  
The circuit configuration for converting logic levels has a bipolar input stage and a CMOS output stage. The bipolar input stage is equipped to process ECL and CML logic levels. The CMOS-logic...
6424172 Circuit structure for synthesizing time-continual filters  
This invention relates to a circuit structure of the feedforward type with programmable zeroes, particularly for synthesizing time-continual filters. This structure comprises a pair of...
6400181 Method and circuitry for the transmission of signals  
In a method and in a circuit arrangement for transmitting signals from an output of a first circuit to an input of a second circuit, where the circuits have a first and a second operating voltage...
6278293 Circuit and method for a transistor-transistor logic (TTL) compatible output drive  
A circuit (10) for providing TTL logic signals at an output (24) employs dual pull up devices (20, 30) at the output. The first device (20) is a bipolar transistor that acts as an emitter-follower...
6255857 Signal level shifting circuits  
A signal level shifting circuit comprises an emitter-follower transistor with a base supplied with an input signal, a collector coupled to a supply voltage, and an emitter coupled via a level...
6191619 Translators and methods for converting differential signals to single-ended signals  
High-speed signal translators are provided to convert differential input signals (e.g., ECL signals) to single-ended output signals (e.g., CMOS signals). An exemplary translator is formed with...
6191635 Level shifting circuit having a fixed output common mode level  
The invention relates to an electronic circuit, and in particular embodiments to a level shifting circuit having an output common mode voltage independent of the input common mode voltage, and...
6172523 Apparatus and method for converting a non-logic-family signal level to a logic-family signal level  
A system and method for translating a non-logic-family signal level into a logic-family signal level, the system comprising: a source of a non-logic-family signal that can assume a first and a...
6127847 High-speed bipolar-to-CMOS logic converter circuit  
A high-speed bipolar-to-CMOS logic converter circuit, including an input stage, including a differential amplifier meant to be connected to a bipolar-logic circuit portion and to be supplied by the...
6091266 Circuit arrangement for a digital circuit using differential logic  
Circuits using differential logic are employed in high-speed optical communications systems. An essential problem in the design of large-scale integrated circuits for this purpose is the control of...
5939922 Input circuit device with low power consumption  
An input circuit includes a pair of common-base circuits having respective transistors including respective bases to which differential signals transmitted through a transmission line are input and...
5739704 Logic selection circuit  
A logic selection circuit for selectively matching the transistor logic type of a first interfacing circuit with the transistor logic type of a second interfacing circuit. The logic selection...
5684414 Voltage level interface circuit with separate reference signal input and folded cascode structure  
A low-voltage, high-speed voltage level interface circuit for signal level translation between circuits operating at different supply voltages. The circuit utilizes a folded cascode structure with...
5684416 Low voltage bipolar transistor logic circuit  
A semiconductor integrated circuit device has a differential logic circuit formed by multi-stage series-gating logic circuits each composed of bipolar transistors whose emitters are connected in...
5572152 Logic circuit with the function of controlling discharge current on pull-down and emitter coupled logic circuit  
A first current switch circuit 1a outputs a first logic signal and a complementary signal thereof in response to an input logic signal. A pull-up transistor Q10 has a base receiving the first logic...
5532619 Precision level shifter w/current mirror  
A level shifter circuit for converting an input signal referenced to the least positive power supply (typically ground) to an output signal referenced to a higher, more usable voltage. The level...
5479115 Signal processing device and level converter circuit  
There is disclosed a signal processing device which includes a pre-processing circuit (31) for performing a serial-to-parallel conversion on an intermediate signal (M 2 ) at a PECL level, the...
5428305 Differential logic level translator circuit with dual output logic levels selectable by power connector options  
Switching between two logic circuits that produce outputs at different respective logic levels is accomplished by means of a common input differential switch that has a branch in each logic...
5402015 Cable connection between a PC and a sewing machine  
A cable connection between a PC and a sewing machine for transmitting data in the form of different voltage levels, wherein the cable connection for connection to the PC has an RS 232 C port and...
5399926 Connected processing systems including mutual power off and signal path disconnect detection  
An interface circuit is designed to connect a first logic circuit such as a microcontroller with a second similar microcontroller using three wires and allowing for simultaneous transfer of data...
5359241 ECL circuit  
A flip-flop circuit of ECL structure includes an ECL circuit portion and a level shift circuit portion including a circuit having a pair of resistors. The ECL circuit portion applies a differential...
5300833 Low voltage biCMOS circuit having ECL and TTL input buffers and no intervening level-shift circuits  
In the conventional configuration, when using circuits with different logical amplitude levels in mixture, the level converter circuit has been necessarily required, and this has been an element...
5250860 Three-level cascode differential current switch  
A three-level input voltage level conversion circuit for three-level emitter coupled logic (ECL) cascode circuit provides three unique input levels. The input voltage level conversion circuit has a...
5237220 Master-slice type ECL circuit  
A master-slice type emitter coupled logic circuit includes a first and a second inverter circuit and a two-input AND circuit which receives output signals from the first and second inverter...
5126597 High speed IC device empolying non-threshold logic circuits to provide logic gates having different power and load requirements  
A unitary semiconductor integrated circuit is constructed using a non-threshold logic NTL circuit for a circuit which has a light load or a light load driving capability, using an NTL circuit...
5126601 Driver and receiver for a differential-signal electrical interface  
Driver and receiver circuits for a differential-signal electrical interface contain comparators and resistive networks to eliminate the need for operational amplifiers, thus lowering cost and...
5043603 Input buffer circuit  
When an input terminal, which is connected to an input transistor, is opened, a transistor having an emitter connected to the input transistor conducts to supply constant current to a constant...
5034631 TTL compatible output circuit with a high switching speed  
An output circuit compatible with TTL-type circuits, manufactured without Schottky devices comprises an intermediate stage (11) and an output stage (12). In the output stage, a first transistor...
5023482 ISL to TTL translator  
An ISL clamped NPN transistor and a PNP interface transistor are merged together in a single semiconductive isolation island. The two transistors are laterally separated from each other along a...
4942316 Cascode logic circuit including a positive level shift at the input of the top logic stage  
A logic circuit family derived from the conventional 2 level single-ended cascode logic circuit. The basic logic circuit performing a 2--2 OA/AI logic function shown in the attached drawing is...
4928024 Referenceless ECL logic circuit  
An ECL transistor pair is connected in parallel with a third transistor. A complementary signal is applied to the transistor pair. A high level of a signal that is applied to the third transistor...
4871929 ECL logic gate  
An ECL logic gate includes an input stage, an output stage, and a multifunction current mirror circuit. The input stage includes a plurality of input transistors, a reference transistor, and an...
4845387 Non-stacked ECL type and function  
A logic circuit which includes first and second differentially connected amplifying devices having first and second complementary output voltage nodes. Means for limiting the output voltage swing...
4825108 Voltage translator with restricted output voltage swing  
A voltage translator containing a bipolar transistor (Q1), a rectifier (10), a resistor (R1), and a first clamp (12) converts an input voltage (V I ) into one or more output voltages of restricted...
4810908 Semiconductor logic circuit comprising clock driver and clocked logic circuit  
A semiconductor logic circuit comprises a clock driver circuit and a clocked circuit which carries out a clocked operation responsive to an output of the clock driver circuit, where an output logic...
4797582 Bidirectional interface circuit having a unipolar port and a bipolar port for logic signals  
The invention relates to the transmission of logic signals. The circuit comprises a port D connected to a line for the transmission of unipolar logic signals and a port (D+, D-) connected to a pair...
4789797 Temperature-compensated interface circuit between "OR-tied" connection of a PLA device and a TTL output buffer  
An interface circuit (110) for interfacing between an "OR-tied" connection (P) of a programmable logic array device (10) and a TTL output buffer (36) includes a first bandgap generator (40), a high...
4737664 Logic gates realized in differential cascode ECL technology  
A semiconductor circuit arrangement in ECL technology for realizing logic conjunctions between more than three input variables includes at least two series-gating stages having at least two ECL...
4725744 Input buffer circuit and logic circuit using the buffer circuit  
A logic circuit including an input transistor receiving the input signal at its emitter, an output transistor in emitter-follower configuration receiving the signal from the collector of the input...
4714841 Double-sided logic input differential switch  
A logic circuit adapted for fabrication as an integrated circuit is formed having a differential amplifier operating with a constant current source and an appropriate voltage source, and having...
4709169 Logic level control for current switch emitter follower logic  
A logic circuit network with circuitry for independently controlling at least one of the logic levels generated thereby, comprising, in one embodiment, a logic circuit with an output current node,...
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