Bizarre Patents
Apparatus for Simulating a High Five
A self-righting hand-arm configuration which is adapted to pivot when struck by a user, thereby simulating a "high five."
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| Number | Title | Issue Date |
| 4459555 | MOS Differential amplifier gain control circuit A modulator circuit is disclosed in which a pair of differentially modulated direct currents are mirrored to an output. A control potential acts to vary the modulation without changing the direct current values. A CMOS version of a complete variable gain ... | 07/10/1984 |
| 4454416 | Photo-electric circuit employing current mirrors A current mirror amplifier including three or more tandem stages has a photo diode connected, as usual, with one end at the input of the first stage, but with the other end at the input of a third or later stage, which third or later stage is made up of t... | 06/12/1984 |
| 4453094 | Threshold amplifier for IC fabrication using CMOS technology The present invention relates to a threshold amplifier suited to integrated circuit fabrication of a process employing CMOS technology. The threshold amplifier is designed to sense current producing a first or a second logic level as a function of a curre... | 06/05/1984 |
| 4453092 | Comparator circuit having reduced input bias current A comparator circuit which includes a differential pair of transistors forming differential inputs of the comparator and a voltage level shift circuit coupled in series connection path with the emitters of the pair of transistors. The voltage level shift ... | 06/05/1984 |
| 4450414 | High temperature current mirror amplifier A high temperature current mirror amplifier having biasing means in the transdiode connection of the input transistor for producing a voltage to maintain the base-collector junction reversed-biased and a current means for maintaining a current through the... | 05/22/1984 |
| 4450366 | Improved current mirror biasing arrangement for integrated circuits A current mirror biasing arrangement for an electronic circuit, particularly one intended for an integrated circuit employs a current mirror constituted by series connected pnp and npn transistors having their collectors connected together. A pair of seri... | 05/22/1984 |
| 4446444 | CMOS Amplifier An amplifier circuit including a FET inverter with its N channel device being part of the controlled leg of a first current mirror, and its P channel device being part of the controlled leg of a second current mirror. The operating point of the inverter i... | 05/01/1984 |
| 4445054 | Full-wave rectifying circuit A full-wave rectifying circuit includes a first current conducting path for conducting a current corresponding to a positive input voltage applied to an input terminal, a second current conducting path for conducting a current corresponding to a negative ... | 04/24/1984 |
| 4442411 | Circuit for the load-proportional adjustment of the driving current of a single-ended output transistor of a transistor amplifier, operated in a common-emitter circuit Circuit for the load-proportional adjustment of the driving current of a single-ended output transistor of a transistor amplifier for a variable load of the output transistor, the output transistor having a base-emitter voltage and being operated in a com... | 04/10/1984 |
| 4439745 | Amplifier circuit In an amplifier circuit having a first bipolar transistor receiving an input signal and coupled to the base of a second bipolar transistor of opposite conductivity, DC offset at the amplifier output is prevented by connecting a constant current source in ... | 03/27/1984 |
| 4439673 | Two terminal integrated circuit light-sensor In a silicon integrated circuit there is formed a silicon photo-diode connected to the input of a multiple stage current-mirror amplifier. The output branch of the amplifier is connected between the two power supply terminals. When voltage is applied to t... | 03/27/1984 |
| 4433283 | Band gap regulator circuit A self-starting, negative voltage band gap regulator is provided, which includes a transconductance amplifier having first and second transistors and a resistive network, a current mirror circuit coupled to the amplifier and a negative feedback circuit co... | 02/21/1984 |
| 4433305 | Amplifier circuit A push-pull amplifier circuit using bipolar transistors in which non-linear distortion caused by the base-emitter voltages of the amplifying transistors of the circuit is eliminated without the use of negative AC feedback and in which variations in a DC o... | 02/21/1984 |
| 4433303 | Push-pull amplifier circuit with field-effect transistors Disclosed herein is a push-pull amplifier circuit employing field-effect transistors in which the field-effect transistors opposite in electrical conductivity to each other are activated by a common input signal to perform a push-pull operation. Secondary... | 02/21/1984 |
| 4433302 | Amplifier with independent quiescent output voltage control A circuit for providing a quiescent output voltage having a load resistor, a current means for establishing a load current through the load resistor, and a mirror means for summing a mirror current with the load current at an output terminal. The current ... | 02/21/1984 |
| 4430624 | Current mirror circuit arrangement A current mirror circuit arrangement wherein an output current is provided by an output transistor and coupled between the base electrode of the output transistor and a reference potential is a series combination of a resistor and a diode. Signals are fed... | 02/07/1984 |
| 4423387 | Current mirror arrangement A current source arrangement which may be constituted by a current mirror or by a multiple current source, having a first current circuit and a second current circuit, each equipped with a semiconductor device in series with a resistor. For the purpose of... | 12/27/1983 |
| 4420726 | Voltage-followers with low offset voltages First and second transistors of first and second types that can exhibit respective first and second potentials of first and second opposite polarities between their respective input and common electrodes when respective currents flow in conduction paths b... | 12/13/1983 |
| 4420725 | Wide-bandwidth low-distortion amplifier A low-noise wide-band bipolar transistor amplifier in which distortion caused by non-linear transistor operating characteristics is substantially eliminated. An input signal is coupled to the base of a first transistor connected in an emitter follower con... | 12/13/1983 |
| 4417240 | Plural output switched current amplifier as for driving light emitting diodes A plural-output switched current source, as may be used to provide current drive to inidividual display segments of an LED display. Each respective current source output is selectively operable from a respective low level I2 L signal source. Me... | 11/22/1983 |
| 4412186 | Current mirror circuit A current mirror circuit having high accuracy in its current mirror transfer ratio λ even when constructed of P-N-P transistors. The circuit includes two stages each having three transistors of one conductivity type and a fourth transistor of a different... | 10/25/1983 |
| 4409558 | Gain compensated transistor amplifier An amplifier arrangement for use in power protection circuits comprises two transistors arranged as a current mirror. The signal voltage is applied to the emitter electrode of one of the two transistors and the collector of the other transistor provides a... | 10/11/1983 |
| 4408190 | Resistorless digital-to-analog converter using cascaded current mirror circuits A digital-to-analog (D/A) converter comprises a plurality of current mirror circuits, a plurality of current switch circuits actuated in response to a digital input signal, and a constant current source.... | 10/04/1983 |
| 4404529 | Lowpass filter with electronic control of cutoff and resonance A lowpass filter circuit having an electronically controllable cutoff frequency and utilizing a feedback current mirror circuit as a variable impedance element. The filter circuit employs low noise, low distortion output circuitry and includes means for e... | 09/13/1983 |
| 4404528 | Output amplifier An output amplifier comprises an output transistor and a biasing transistor whose emitter is connected to the emitter of the output transistor. The polarity of the biasing transistor is the same as that of the output transistor. Resistors of small resista... | 09/13/1983 |
| 4398160 | Current mirror circuits with field effect transistor feedback Two current mirror circuits employing a combination of JFET's and bipolar transistors and a high gain amplifier including one of the mirrors are disclosed. The mirrors each include input and output bipolar transistor with a JFET variable current sink circ... | 08/09/1983 |
| 4389619 | Adjustable-gain current amplifier for temperature-independent trimming A current amplifier comprises four like-conductivity transistors on a substrate of an integrated circuit with a first pair connected in current mirror amplifier configuration. The third and fourth transistors have their respective bases cross-coupled to t... | 06/21/1983 |
| 4386325 | Circuit arrangement for reproducing in an output circuit a current flowing in an input circuit A circuit arrangement for reproducing in an output circuit (4) a current (i1) flowing in an input circuit (1) comprises a PNP-current mirror (2) to the input (2-1) of which the input circuit (1) is connected. The mirror output (2--2) is connected to the e... | 05/31/1983 |
| 4381484 | Transistor current source A PNP transistor current source for sourcing current to a load connected thereto the magnitude of the sourced current being many times greater than the magnitude of a small constant reference current supplied to the current source. The PNP current source ... | 04/26/1983 |
| 4380740 | Current amplifier A current amplifier having a gain factor substantially independent of the common emitter forward current gain (beta) of its component transistors uses a cascade arrangement of current mirror amplifiers (CMA's) to compensate for variations in beta. The out... | 04/19/1983 |
| 4371792 | High gain composite transistor A composite transistor suitable for use in monolithic integrated circuits is characterized as having extremely high current gain, stable operation and low leakage current. Two vertical NPN transistors are coupled into a circuit configuration, along with t... | 02/01/1983 |
| 4371843 | Semiconductor differential amplifier circuit with feedback bias control An input differential amplifier stage (10), which feeds an output stage (20), has a feedback loop originating at a node (N1) in one branch, for controlling the current-source transistor (M5) of that stage. The feedback loop is charac... | 02/01/1983 |
| 4369411 | Circuit for converting single-ended input signals to a pair of differential output signals A signal converting circuit for converting a single-ended input signal to a pair of differential output signals includes a current source for generating a constant current; an input signal generating circuit for generating an input signal current; a first... | 01/18/1983 |
| 4366445 | Floating NPN current mirror An amplifier circuit is disclosed which utilizes a differential-to-single ended converter having a floating current mirror. The amplifier includes a differential driving circuit having first and second differential output terminals which are respectively ... | 12/28/1982 |
| 4365209 | Impedance transducer An impedance transducer is shown wherein two active elements of the same characteristics are formed on one thermally conductive base, one of these active elements is connected in a negative feedback circuit of a negative feedback amplifier, and the intern... | 12/21/1982 |
| 4361771 | Voltage summation circuit A voltage summation circuit receives a series of input voltage signals and provides an output voltage signal which represents a summation of the input voltage signals. The voltage summation circuit includes first and second capacitors, a current mirror, a... | 11/30/1982 |
| 4361816 | Current mirror amplifiers with programmable gain A current mirror amplifier includes first and second transistors connected together at their common electrodes, the first transistor being connected for receiving input signal current at its output electrode, and the control electrodes of the transistors ... | 11/30/1982 |
| 4361815 | Operational amplifier with programmable gain An operational amplifier includes a differential-input amplifier stage supplying first and second drive currents responsive to input signals applied to its input connections. A first current amplifier exhibiting gain factor G supplies currents to an outpu... | 11/30/1982 |
| 4361797 | Constant current circuit A constant current circuit comprising first and second insulated gate field effect transistors connected in series, and third and fourth insulated gate field effect transistors connected in series. The series connected transistor pairs are connected in pa... | 11/30/1982 |
| 4356455 | Amplifier An amplifier circuit in which the non-linear distortion of the amplifier transistors caused by non-linear base-emitter input and output characteristics is eliminated without the use of negative feedback. A first transistor and a second transistor of oppos... | 10/26/1982 |
