Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 8120213 | Electric fence energiser system A method and a system for controlling the operation of an energizer which delivers energy to a fence in the form of a succession of pulses, the energy or waveshape of each pulse is varied in a manner which is dependent on the amount of energy which is lost by the fe... | 02/21/2012 |
| 7880343 | Drive isolation transformer controller and method A transformer controller for a drive isolation transformer is provided. The transformer may include multiple sets of primary windings as an input, and the transformer controller may include multiple branches coupled between a power source and the transformer. Each b... | 02/01/2011 |
| 7859138 | Drive circuit A drive circuit for a switching circuit has a high-side drive circuit to turn on/off, according to a control signal, a switching element QH arranged on a high side of a DC power source Vin and a low-side drive circuit to turn on/off alternately with the switching el... | 12/28/2010 |
| 7635928 | Drive control circuit and projection apparatus A drive control circuit (100) performs drive control of a plurality of loads (111, 112) having different operating characteristics. The drive control circuit includes a plurality of connectors (106, 107) for connecting with the plurality of load... | 12/22/2009 |
| 7576451 | Self powered gate driver system An apparatus and method used to charge a self powered gate driver system. The apparatus may include a current loop for inducing a current in a coil. A bridge rectifier may rectify the current induced in the coil and charge a capacitor used to power a driver in a sel... | 08/18/2009 |
| 7569951 | Systems and methods for driving a ferrite load A ferrite load driver system in accordance with the invention includes a clock generator configured to generate a digital clock signal. The system further includes a digital pulse generator configured to generate an enable pulse having a pulse width equal to a certa... | 08/04/2009 |
| 7545059 | Chip-scale coils and isolators based thereon Coil structures and isolators using them. A coil(s) is (are) used as a magnetic field-generating element(s) paired with another coil(s) or other magnetic field-receiving element(s). The coil(s) is(are) formed in or on a substrate which does not include some or all o... | 06/09/2009 |
| 7349192 | Method of operating a device for controlling electric actuators with optimum actuation current distribution There is described a method of operating a device (1) controlling electric actuators (3), and having a pair of input terminals (4, 5) connected to an electric energy source (6, 10); a number of pairs of output terminals (7, 8), bet... | 03/25/2008 |
| 7256624 | Combined output driver A combined output driver for TMDS signals and LVDS signals. First and second output drivers output first and second differential signals to a first external input unit and a second external input unit, respectively, through a pair of signal lines according to first ... | 08/14/2007 |
| 7091633 | Current-limiting logic interface circuit A circuit of interface between a logic sensor and a logic input isolation barrier of a processing circuit, including an element of protection against input overvoltages, a current-limiting circuit connected in series between an input terminal and an output terminal ... | 08/15/2006 |
| 7067941 | Linear solenoid control apparatus and method having increased responsiveness features A control system and method for controlling operation of a group of linear solenoids, which in turn control operation of an electrical load such as a solenoid or actuator, that exhibits increased responsiveness to a change in the target linear solenoid load current.... | 06/27/2006 |
| 6876104 | High-speed switching circuit and automotive accessory controller using same A high-speed switching circuit with a low or zero inductance shunt resistor is constructed using a trace resistor having parallel overlying trace portions on opposite plane faces of a printed circuit board. The resulting shunt resistor is used in combination with a ... | 04/05/2005 |
| 6873065 | Non-optical signal isolator A non-optical isolator having a driver circuit for providing an input signal to one or more first passive components which are coupled across a galvanic isolation barrier to one or more corresponding second passive components, and an output circuit that converts the... | 03/29/2005 |
| 6777831 | Electrochemical processing power device The present invention discloses a power supply device, particularly for supplying a controlled electrical signal in an electrochemical process, e.g., plating, etching, etc. The power delivery device provides an electrical signal with optimal characteristics and sett... | 08/17/2004 |
| 6541878 | Integrated RJ-45 magnetics with phantom power provision A connector integrates a transformer and a "phantom" power provision, thus enabling a reduction in size along with an increase in versatility for electronic communication. The transformer may comprise a pair of magnetic transformers. The power source may ... | 04/01/2003 |
| 6492847 | Digital driver circuit A digital driver circuit with one or more CMOS inverters intended as input stages, whereby for the MOS FETs of the inverters the channel width/length (W/L) ratio increases from stage to stage. The digital driver circuit includes an intermediate stage with... | 12/10/2002 |
| 6377086 | Low power dual-voltage sense circuit buffer A fully-static dual-voltage sense circuit designed for a mixed-voltage system senses the power-rail voltage of other devices that the device is interfaced with, and achieves a low-power consumption level without software assistance when the sensing circui... | 04/23/2002 |
| 6373300 | Integrated circuit with multi-function controlled impedance output drivers A multi-function output driver that may be used with at least two types of busses includes a multiplexer that shifts calibration bits to the pull-down transistors. This shifting changes which transistors of the transistor array are turned on when the pull... | 04/16/2002 |
| 6323701 | Scheme for reducing leakage current in an input buffer A circuit for addressing leakage. The circuit may have a variable supply stage having an active load in parallel with a switch transistor where the active load and the switch transistor are coupled to a decoupling capacitor. The circuit may also have a le... | 11/27/2001 |
| 6310496 | Signal transition accelerating driver circuit for promptly driving bus line and bus driving system using the same A signal transition accelerating driver circuit for driving a signal line in the presence of an enable signal of a high level and to a potential level on the signal line for accelerating the potential change on the signal line in the presence of the enabl... | 10/30/2001 |
| 6140718 | Complimentary driver circuit with shared voltage breakdown protection This is a driver circuit 100 for use in an integrated circuit 10 for driving two complimentary signals on output terminals 104 and 106. A single device, such as a Schottky diode 170, prevents voltage breakdown resulting from an externally supplied voltage... | 10/31/2000 |
| 5835535 | Data bus interface apparatus which measures voltage potential on the uplink line of the data bus and removes an AC component The data bus interface apparatus (243) which interfaces between one of a plurality of peripheral units (111) and a data bus (109). The data bus interface driver (243) is capable of biasing data to the voltage level of the data bus (109), accepting data si... | 11/10/1998 |
| 5553306 | Method and apparatus for controlling parallel port drivers in a data processing system A parallel port interface for utilization between a first device and a second device designated by a user for transmitting a digital signal from the device to the second device. The parallel port interface includes a switchable driver circuit for transmit... | 09/03/1996 |
| 5528059 | Photoelectric conversion device utilizing a JFET An amplification-type photoelectric conversion device utilizes a JFET and is capable of amplifying charges generated by photoelectric conversion with a high amplification factor and improves the S/N ratio. The device is provided with a drive circuit for r... | 06/18/1996 |
| 5396108 | Latch controlled output driver A latch output driver including an output driver circuit having a pull-up transistor and a pull-down transistor connected in series, wherein the pull-up transistor has a drain connected to an upper power supply voltage and a source connected to a drain of... | 03/07/1995 |
| 5394375 | Row decoder for driving word line at a plurality of points thereof A row decoder for a semiconductor memory device is disclosed which includes a plurality of decoding circuits each driving a corresponding one of word lines in response to first and second control signals associated therewith. Each of the decoding circuits... | 02/28/1995 |
| 5321842 | Three-state driver with feedback-controlled switching A processor specially adapted for use as a coprocessor. The processor is implemented as a microprocessor. The adaptations include the following: The microprocessor has a master-slave pin which receives an input which determines whether the microprocessor ... | 06/14/1994 |
| 5263173 | High speed clocked output driver for switching logic levels of an output pad at integer and integer and a half clock cycles An output driver and method including an output pad, for performing write operations from a central processor unit to a cache memory. The driver includes a pull-up circuit electrically connected to the output pad for switching the pad to a first logic sta... | 11/16/1993 |
| 4862014 | Method and apparatus for controlling the phase of signal driving a ferrimagnetic load A device-implemented method for driving a ferrimagnetic load (10), such as a phase shifter in an antenna array, which precisely meters the amount of magnetic flux imparted to the load (10) by sensing the voltage applied to a winding and integrating the se... | 08/29/1989 |
| 4736122 | Read head for Wiegand wire A read head for a Wiegand wire has an E-core with a pick-up coil for the "1" bit wound on one outer leg and a separate pick-up coil for the "0" bit wound on a second outer leg. The E-core is composed of a relatively thin ferromagnetic E-laminae spaced fro... | 04/05/1988 |
| 4661722 | Fail-safe pulse coincidence detector A fail-safe electronic coincidence detecting circuit including a multiple winding saturable core reactor having a first and a second input winding and an output winding. An NPN transistor amplifier supplying a first pulse train to the first input winding ... | 04/28/1987 |
| 4638177 | Rotating flux transformer A rotating flux transformer which includes a magnetic core having poloidal primary and secondary windings and toroidal primary and secondary windings. Quadrature flux is produced in the magnetic core by connecting one end of the poloidal primary winding t... | 01/20/1987 |
| 4636713 | Monolithically integratable control circuit for switching inductive loads comprising a Darlington-type final stage A monolithically integratable control circuit for switching inductive loads, comprising a Darlington-type final stage, is described. The base of the Darlington control transistor is coupled to the collector of a transistor for extracting charge, the trans... | 01/13/1987 |
| 4602166 | Transformer driving network with primary current limiting means A non-linear network is disclosed for use in a power processor (converter) for limiting transformer primary winding current during (switching) transitions of a transformer driving potential, the network employing a resistor for coupling a suitably limited... | 07/22/1986 |
| 4443719 | Voltage isolated gate drive circuit A voltage isolated gate drive circuit for insulated gate semiconductors utilizes a small, inexpensive pulse transformer to provide a rectangular drive wave form. The small pulse transformer can be operated with an input square wave form at relatively low ... | 04/17/1984 |
| 4405927 | Phase shifter start/stop electronic trimming The phase shifter start/stop electronic trimming circuit provides a means r electronically trimming phase shifters when stop/start two axis steering is used. A time delay is incorporated into the start logic line of each phase shifter driver allowing the ... | 09/20/1983 |
| 4382237 | Temperature compensation of a flux drive gyromagnetic system A flux drive gyromagnetic system such as a gyromagnetic waveguide phase shifter is temperature compensated by measuring the flux change in the gyromagnetic material during a reverse in saturation magnetization, comparing that change to the change under re... | 05/03/1983 |
| 4365173 | Phase shifter adjustment apparatus A phase shifter adjustment apparatus utilizing a current source bleed unit to control microwave ferrite phase shifter coils without elongating the switching time. The current sources provide a high impedance to the phase shifter coils thereby minimizing R... | 12/21/1982 |
| 4042831 | Core memory phaser driver A ferrite phaser driver circuit for phased array antennas wherein the input data is stored and subsequently fed to a ferrite phaser which has been immediately reset through a one-shot circuit configuration having means for compensating for power supply va... | 08/16/1977 |
