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| Number | Title | Issue Date |
| 5075566 | Bipolar emitter-coupled logic multiplexer A high speed multiplexer circuit is described which includes a plurality of input bipolar transistors and a reference bipolar transistor. The input and reference transistors have their emitters commonly coupled to an emitter current supply and their colle... | 12/24/1991 |
| 5045804 | Amplifying circuit An amplifying circuit has a plurality of first signal input circuits for multi-channel input, a signal output circuit receptive commonly of outputs of these signal input circuits, and a switching circuit for selecting one of the first signal input circuit... | 09/03/1991 |
| 4977733 | Four wheel steering tractor having a mid-mount mower A four wheel steering tractor comprising a grass cutting system vertically movably mounted in a lower space of the tractor between front and rear wheels. The grass cutting system carries gauge wheels disposed at opposite lateral sides in rear regions ther... | 12/18/1990 |
| 4977333 | Power semiconductor device including an arrangement for controlling load current by independent control of a plurality of semiconductor elements Semiconductor components electrically connected in parallel are divided into a plurality of groups, with the control terminals of the semiconductor components constituting each group being connected in common to form a control terminal of the group, where... | 12/11/1990 |
| 4963767 | Two-level ECL multiplexer without emitter dotting A two-level 4:1 ECL multiplexer circuit comprising two 2:1 multiplexer circuits "OR'd" together prior to a shared output stage. A differential Select line, operable at the same voltage level as the input data lines to the 2:1 multiplexer circuits selects ... | 10/16/1990 |
| 4905238 | Analog amplifier-multiplexer for a data system An analog amplifier multiplexer for a data system in which a plurality of differential signal channels are multiplexed onto a pair of differential signal lines includes a differential amplifier connected to each pair of differential signal lines which are... | 02/27/1990 |
| 4866306 | ECL mux latch A method and apparatus for providing an emitter coupled logic 2 to 1 multiplexer latch. The latch has a feedback loop for latching data within the loop and at least two data ports for transmitting data. A single differential amplifier having emitter coupl... | 09/12/1989 |
| 4835771 | Integrated digital multiplexer circuit A multiplexer module includes N input transistors (T0 to T3) whose bases receive input signals (E0 . . . E3), whose collectors are connected to ground and whose emitters are coupled to those of a multi-emitter o... | 05/30/1989 |
| 4814634 | Ternary signal multiplexor circuit The multiplexing circuit disclosed herein combines multiple input signals into a common output by allowing ternary signals to pass from multiple input circuits to a common output circuit. The circuit combines ternary signals with minimum feedback between ... | 03/21/1989 |
| 4758736 | Fast transition, flat pulse generator A pulse generator utilizes a pair of current sources acting through a pair of Schottky diode switches to provide load currents in opposite directions through a load resistor to produce an output voltage across the load resistor of magnitude proportional t... | 07/19/1988 |
| 4743899 | Decoder/multiplexer circuit including multi-emitter transistors A decoder/multiplexer circuit for selecting one of a plurality of input signals includes an array formed of a plurality of decode transistors. All of the collectors of the decode transistors are commonly formed in a large epitaxial pocket, thereby reducin... | 05/10/1988 |
| 4678929 | Radio frequency switch In a radio frequency switch, a pair of diodes is coupled in series with polarities opposed between input and output ports. A shunt diode is coupled between the junction point of the pair of diodes and a point of reference potential. A transistor has its m... | 07/07/1987 |
| 4651021 | Pulser circuit A pulser circuit comprises a transistor with its drain and source arranged in parallel with a first resistor, and two SCR's each arranged in parallel with a further resistor. These elements are arranged as a series circuit across a capacitor, and a supply... | 03/17/1987 |
| 4639613 | Broad band coupling switch arrangement with gated power supply The disclosure relates to a broad band coupling arrangement with coupling point switches in ECL technology, whereby a plurality of coupling point switches are formed by a corresponding plurality of linkage elements which are integrated on one chip. In ord... | 01/27/1987 |
| 4626831 | Analog signal processing circuit An analog signal processing circuit including both an analog signal multiplexer and a ranging circuit in cascade therewith is adapted for use in an integrated circuit. The multiplexer has a plurality of input current paths and an output current path. It r... | 12/02/1986 |
| 4572967 | Bipolar analog switch An improved bipolar analog switch comprising selectable emitter-coupled pairs of bipolar transistors in combination with an emitter follower output bipolar transistor is provided with means for matching operating characteristics of the selected emitter-co... | 02/25/1986 |
| 4568884 | Circuit arrangement comprising an amplifier and an electronic selector switch In a circuit arrangement comprising an amplifier and an electronic selector switch at the input of the amplifier it is possible to switch the input to one out of a plurality of incoming transmission paths. The operating current for the electronic selector... | 02/04/1986 |
| 4535360 | Low power wideband switching array element A switching array comprising low power switching elements for switching high bandwidth pulse encoded signals with minimum distortion. Each switching element comprises an emitter-coupled pair of transistors which are used to switch the pulse encoded signal... | 08/13/1985 |
| 4524443 | High speed solid state multiplexer A multiplexing apparatus for outputting selected input signals utilizes input transistors coupled between input sources and diodes. A first set of switching transistors, coupled to the input transistors and the diodes, blocks the outputting of nonselected... | 06/18/1985 |
| 4481623 | Speed independent arbiter switch employing M-out-of-N codes Disclosed is an arbiter comprised of two input ports and one output port; each input port has N input data lines, and the one output port has N output data lines; one circuit in the arbiter selects only one of the two input ports at a time; and another ci... | 11/06/1984 |
| 4461960 | High speed switching circuit A switching circuit formed of a plurality of parallel channels, each channel including a control transistor, a compensating transistor and an output transistor arranged in series. The analog signals to be switched are applied each to an input terminal of ... | 07/24/1984 |
| 4390988 | Efficient means for implementing many-to-one multiplexing logic in CMOS/SOS A circuit for multiplexing a plurality of input signals to a single output signal through the use of N and P channel FETs whereby complementary switching circuitry results in a minimization of power usage in either the active or static circuit conditions.... | 06/28/1983 |
| 4390987 | Multiple input master/slave flip flop apparatus The typical gating means (four) in a master/slave flip flop are duplicated for each input signal to be multiplexed through the flip flop and a separate control signal is applied to each set of four gating means for determining which of the plurality of in... | 06/28/1983 |
| 4349750 | Switching circuit comprising a plurality of input channels and an output channel A switching circuit in which one out of a plurality of input channels is connectable to an output channel via one of the switching devices in the circuit. Each of the switching devices comprises an emitter-coupled pair of transistors which have a switchab... | 09/14/1982 |
| 4223235 | Electronic switching circuit An electronic switching circuit for switching electrical signals from several channels towards one channel or vice versa. For switching an electrical signal selected from others, the invention provides on the one hand a switching device comprising switchi... | 09/16/1980 |
| 4196358 | Analog multiplexer An analog multiplexer connected to a plurality of input terminals selectively samples the input terminals in response to signals from a controller. The multiplexer includes a sample and ramp amplifier circuit for supplying the selected analog input to des... | 04/01/1980 |
| 4191856 | Analog multiplexer Disclosed is an analog multiplexer in which a plurality of emitter follower differential amplifiers formed of several pairs of bipolar transistors connected in parallel with each other are connected in common to one terminal of a power source through a cu... | 03/04/1980 |
| 4145687 | Keyboard switch circuit for use in a matrix which has a series circuit including a reluctance element and a diode connected between each row and column of the matrix A keyboard switch circuit comprises a first plurality of terminals associated with m rows and a second plurality of terminals associated n columns. A plurality of series circuits each including a reluctance element and a diode are connected between the te... | 03/20/1979 |
| 4127820 | Electrical circuit for multiplexing and dividing different bands or frequencies The circuit includes a band selector which in one state controls the passage of a first band of frequencies (e.g. UHF signals) via a counter to a first input port of an Amplifier-Multiplexer (AMP/MUX) and which in another state controls the passage and am... | 11/28/1978 |
| 4020364 | Resistance read amplifier Resistance read amplifier in which a resistor the resistance of which is to be determined is connected by an electronic selection switch to a constant-current source which at the same time switches an associated output amplifier into circuit.... | 04/26/1977 |
| 4000428 | Electronic switch An electronic switch in which first, second and third transistors are arranged in a group and provide for switching signals from a supply thereof to a signal buss. The source of signals is supplied to the base of the first transistor and from the emitter ... | 12/28/1976 |
