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7474126 Parallel bipolar logic devices and methods for using such  
Various logic gates and methods for using such are disclosed herein. For example, some embodiments of the present invention provide parallel differential logic gates. Such logic gates include two...
7408384 Drive circuit of computer system for driving a mode indicator  
A drive circuit of a computer system is for driving a mode indicator. The computer system includes a first port and a second port. The mode indicator includes a first receiving end and a second...
7339402 Differential amplifier with over-voltage protection and method  
Circuitry for preventing damage to bipolar transistors in integrated circuit amplifier circuitry during slew-limited operation includes first and second transistors, each having first, second, and...
7312639 Universal single-ended parallel bus  
A high speed data communication system uses a single-ended bus architecture with a reference signal extracted from a differential periodic signal that is transmitted along with single-ended data....
7301371 Transmitter of a semiconductor device  
Embodiments of the present invention provide a transmitter of a semiconductor device, which can output signals corresponding to input signals having various common mode levels and amplitudes. The...
7250790 Circuit for providing a logic gate function and a latch function  
An electronic circuit for providing a logic gate function includes a differential signal input, a combining stage, a discriminating stage and a differential signal output. The discriminating stage...
7218145 Level conversion circuit  
An input circuit (a first transistor pair) that receives complementary input signals is connected to a latch circuit (a second transistor pair) that converts the amplitude of an input signal into...
7202706 Systems and methods for actively-peaked current-mode logic  
A method and apparatus for creating high speed logic circuits in a CMOS environment using current steering logic cells with actively-peaked NMOS or PMOS loads and the biasing of these logic cells...
7202696 Circuit for temperature and beta compensation  
A compensation circuit is disclosed. The compensation circuit includes a driver stage having an output, a differential output device including a base coupled to the output of the driver stage, and...
7187212 System and method for providing a fast turn on bias circuit for current mode logic transmitters  
A system and method is disclosed for providing a fast turn on bias circuit that permits a fast transition from an idle “power down” state to an active “power up” state in current mode logic...
7187208 Complimentary metal oxide silicon low voltage positive emitter coupled logic buffer  
A low voltage positive emitter coupled logic (LV-PECL) buffer fabricated in the complimentary oxide metal silicon (CMOS) process. The LV-PECL buffer in CMOS is operable for a wide frequency range...
7187207 Leakage balancing transistor for jitter reduction in CML to CMOS converters  
The CML (current mode logic) to CMOS converter with a leakage balancing transistor for jitter reduction includes: a differential input stage; an output stage having a first branch coupled to a...
7154301 Apparatus and method for a low jitter predriver for differential output drivers  
A method and apparatus for a low jitter predriver for differential output drivers. In one embodiment, the predriver comprises a pull-up circuit having at least one pull-up device of a first device...
7148724 Signal output circuit  
The signal output circuit 1 includes a first and a second emitter follower circuit, and a comparator 20 . The comparator 20 receives output signals from the first and the second emitter...
7145366 Electronic circuit with a differential pair of transistors and logic gate comprising such a circuit  
An electronic circuit includes at least one differential pair of transistors, a control transistor switch, a first current source and a second current source. The second current source is connected...
7132848 Power management circuit  
A power management circuit. A logic cell switched between normal and standby modes according to a power control signal includes a plurality of first NMOS transistors coupled between at least one...
7106093 Semiconductor device  
A semiconductor device having a plurality of cascaded IC's ( 14, 15, 16 ), wherein the matching impedance between a signal transmission path ( 12 ) connected to an external signal transmission path...
7098697 Low voltage high-speed differential logic devices and method of use thereof  
A circuit topology for high speed low voltage logic circuits is disclosed that reduces the number of levels of stacked active circuit elements from 3 to 2. Circuits providing a variety of logic...
7038495 Low jitter high speed CMOS to CML clock converter  
Provided is a circuit to convert input CMOS level signals having a predetermined duty cycle to CML level signals having a higher duty cycle. The circuit includes two differential transistor pairs...
7030660 Line driver  
A line driver which is especially suitable for wirebound data transmission at high bit rates, comprising several parallel-connected driver stages ( 3 ) respectively comprising a first pair of...
6937054 Programmable peaking receiver and method  
Methods and structures are disclosed herein for programmably adjusting a peaking function of a differential signal receiver. The disclosed method includes inputting a pair of differential signals...
6911847 Current switching type of high-speed logic circuit which generates output pair of differential signals each having accurately matched rise-time and fall-time waveform characteristics  
A two-input logic gate circuit suitable for extremely high-speed operation, which operates on two differential signal pairs expressing respective logic inputs, includes a control signal generating...
6885220 Current source circuit  
A current source circuit is characterized in that it contains a control device that controls a component of the current source circuit that determines a variable of the current supplied by the...
6882178 Input circuit  
An input circuit comprises an input terminal for receiving an input signal, an output terminal for outputting an output signal, a node connected to the input terminal, a terminating resistor...
6870389 Differential circuit with current overshoot suppression  
A differential driver circuit that suppresses current overshoot and allows current switching to proceed at near the maximum speed includes: a differential pair Q 5 and Q 6 having a tail current...
6847233 Emitter coupled logic circuit with a data reload function  
An emitter coupled logic circuit with a data reload function is disclosed. The emitter coupled logic (ECL) circuit includes first and second in series transistors consisting of bipolar junction...
6842037 Shared transmission line communication system and method  
Systems and methods are disclosed for sharing a transmission line among different interface technologies. For example, in accordance with an embodiment of the present invention, two different...
6825707 Current mode logic (CML) circuit concept for a variable delay element  
An apparatus for a current mode logic variable delay element. A preferred embodiment comprises an input signal that is provided to a multiplexer (for example, multiplexer 210 ) in both buffered...
6798249 Circuit for asynchronous reset in current mode logic circuits  
A current mode logic (CML) flip flop includes a first CML latch and a second CML latch. A plurality of pull-up switches are responsive to a reset signal. Outputs of the first and second CML latches...
6753703 Resetable cascadable divide-by-two circuit  
A cascadable divide-by-two binary counter circuit ( 120 ) that has particular application for use as a synchronous divider circuit ( 50, 54 ) in a phase lock loop ( 26 ). The counter circuit ( 120...
6750681 High speed current mode logic gate circuit architecture  
An integrated circuit logic topology or architecture suitable for low voltage differential logic operating at radio frequencies is disclosed. The topology, referred to as enhanced pseudo common...
6690207 Power efficient emitter-coupled logic circuit  
A high bandwidth emitter-coupled logic (ECL) circuit is provided. The ECL circuit comprises an emitter-follower circuit with first and second transistors having collectors connected to a first...
6677784 Low voltage bipolar logic and gate device  
A single stack bipolar logic AND gate for low power applications comprising: a first differential pair of transistors, each transistor of the first differential pair having base, emitter and...
6628220 Circuit for canceling thermal hysteresis in a current switch  
A current switch circuit including a current switch including a first transistor and a second transistor connected as a differential pair and receiving a differential logic signal at their bases,...
6617926 Tail current node equalization for a variable offset amplifier  
First and second differential transistor pairs, where each may be intentionally unbalanced or balanced, are provided. First and second variable current generators are coupled to control respective...
6552577 Differential emitter-coupled logic buffer having reduced power dissipation  
A logic buffer includes a logic gate having at least two input terminals and two output nodes, a plurality of output terminals, each having a capacitance associated therewith and a pull-up circuit...
6492842 Logic circuit  
The invention provides a logic circuit which has a sufficient load driving capacity even in its operation with a low power supply voltage and can operate at a high speed. In a next stage to a...
6429692 High speed data sampling with reduced metastability  
A data sampling system, including a data tracking circuit and a data latching circuit, that reduces the likelihood of metastability that arises through competition of the two circuits, where data...
6429691 Differential-input circuit  
A circuit provides differential logic signals and includes a differential-input circuit having a first differential input and a second differential input. A first unit receives an input voltage...
6411129 Logic circuit with output high voltage boost and method of using  
A differential logic gate providing complimentary input and complimentary output operation. Transistors ( 50,52 ) provide the differential input and emitter follower transistors ( 54,62 ) provide...
6400184 Transistor output circuit  
A transistor output circuit featuring a low power consumption, high speed and stabilized operation is realized. The transistor output circuit of the invention is comprised of: transistors Q 59 and...
6359467 Dynamic element matching using current-mode butterfly randomization  
The present invention is a technique for dynamic element matching used in digital-to-analog converters (DAC's). An analog-to-digital converter (ADC) converts an analog signal into a digital code. A...
6320422 Complementary source coupled logic  
A complementary source coupled logic topology suitable for low voltage differential signaling is disclosed. The topology is referred to as complementary source coupled logic as it contains...
6300802 Output buffer with programmable voltage swing  
An integrated circuit device in which the magnitude of the output voltage swings of outputs in a circuit having emitter coupled output transistors is programmable includes a variable bias generator...
6265901 Fully differential logic or circuit for multiple non-overlapping inputs  
A high speed, multiple input restrictive OR circuit with fully differential inputs and output is used in applications in which only one input can be active at a time. N differential voltage inputs...
6222391 Semiconductor integrated circuit  
A circuit for shifting the potential level of an input signal toward higher potentials is added to a conventional differential ECL circuit in order to shift levels of emitter potentials of npn...
6215330 Differential diode transistor logic (DDTL) circuit enhancements  
A relatively low voltage, high speed, differential diode transistor logic DDTL) family of circuits for performing various Boolean logic functions, such as AND, OR, etc. as well as non-Boolean...
6211721 Multiplexer with short propagation delay and low power consumption  
A digital multiplexer with low power consumption and a data to output propagation delay of about one gate includes a plurality of pairs of emitter coupled input transistors. The emitters of each...
6198309 Emitter follower output with programmable current  
An integrated circuit device having emitter follower outputs with adjustable output currents includes a variable bias generator that produces a bias voltage. The bias voltage is connected to the...
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...
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