Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7317369 | Superconductor magnet coil configuration A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is charact... | 01/08/2008 |
| 7271682 | Wideband temperature-variable attenuator The present invention is a wideband temperature-dependent attenuator. In a preferred embodiment the attenuator is a modified Tee attenuator having first and second resistors connected in series at a first node and third and fourth resistors connected in shunt betwee... | 09/18/2007 |
| 7215219 | Temperature and frequency variable gain attenuator A temperature and frequency variable gain attenuator comprises a temperature variable attenuator and a temperature variable filter network whose resistances changed to c generate different responses that vary over temperature and frequency. At least three different ... | 05/08/2007 |
| 7205863 | Temperature and frequency equalizer The present invention is an absorptive-type cable temperature and frequency equalizer that offsets changes in the gain of the other circuit components cables with increases in temperature and/or frequency. The equalizer comprises a temperature variable filter networ... | 04/17/2007 |
| 7202759 | Wideband temperature-variable attenuator An absorptive temperature-variable microwave attenuator is produced using a first plurality of shunt resistors separated by quarter-wave transmission lines connected by a series resistor with a second plurality of shunt resistors separated by quarter-wave transmissi... | 04/10/2007 |
| 7119632 | High-frequency temperature-variable attenuator An absorptive temperature-variable microwave attenuator is produced using at least two temperature-variable (or fixed) resistors in series with a transmission line. The temperature coefficients of the temperature-variable resistors are selected so that the attenuato... | 10/10/2006 |
| 7053750 | Voltage probe systems having improved bandwidth capability A resistive pin for use in a voltage probe includes a pin-head that is configured to contact a test point in a device under test, and a resistor that is attached to the pin-head. Other systems are also provided for establishing electrical connections between testing... | 05/30/2006 |
| 7034652 | Electrostatic discharge multifunction resistor The present invention provides a multifunction resistor having an improved voltage variable material (“VVM”). More specifically, the present invention provides a polymer VVM that has been formulated with a high percentage loading of conductive and/or semiconduct... | 04/25/2006 |
| 6942522 | Termination device The termination device to connect with the other piece of a coaxial connector in the coaxial connector, which comprises a first component comprised of a terminal to electrically connect with the center conductor of the other piece of the coaxial connector and an out... | 09/13/2005 |
| 6445280 | Composite material switches A device to protect electronic circuitry from high voltage transients is constructed from a relatively thin piece of conductive composite sandwiched between two conductors so that conduction is through the thickness of the composite piece. The device is b... | 09/03/2002 |
| 6281783 | Auto resistance matching means for distribution boxes An auto resistance device for distribution boxes, which can automatically provide grounding for a cable connector of a distribution box before a cable is connected or remove the grounding after the cable is connected is disclosed.... | 08/28/2001 |
| 6016085 | Flat cable load An RF termination load includes a base of an electrically and thermally conductive material having opposed surfaces. A recess is in one of the surfaces of the base and a groove in the one surface extends from the recess to an edge of the base. A resistor ... | 01/18/2000 |
| 5999080 | Frequency dependent resistive element A frequency dependent resistor in which the length of the current path across the resistor varies as a function of the frequency of the electrical signals being passed therethrough. The resistor uses the principal known as skin effect to direct relatively... | 12/07/1999 |
| 5883565 | Frequency dependent resistive element A frequency dependent resistor in which the length of the current path across the resistor varies as a function of the frequency of the electrical signals being passed therethrough. The resistor uses the principal known as skin effect to direct relatively... | 03/16/1999 |
| 5864283 | Microwave frequency chip resistor assembly The microwave frequency chip resistor assembly is used as a terminating device for a video jack. Such an assembly minimizes inductance variation and eliminate soldering associated with conventional metal film resistors.... | 01/26/1999 |
| 5841342 | Voltage controlled superconducting microwave switch and method of operation thereof A low insertion loss, wide bandwidth, microwave switch has a superconducting transmission line that can reversibly go from a superconducting state to a normal state by the application of a DC voltage. When in the normal state, the switch is "off" and micr... | 11/24/1998 |
| 5731747 | Electronic component having a thin-film structure with passive elements An electronic component with a substrate (1, 31) of which a surface (4, 34) is provided with a thin-film structure with passive elements (5, 35), with a resistor (6, 36) formed in a layer of resistor material (7, 37), and with a capacitor having a lower e... | 03/24/1998 |
| 5670917 | AC coupled termination The present invention is directed to an AC termination which includes a substrate having first and second surfaces. A resistor is mounted on the first surface of the substrate. An input termination is at one end of the resistor. At least one plate of a ca... | 09/23/1997 |
| 5596309 | Reduced inductance coaxial resistor A coaxial type electrical resistor has a cylindrical conductor, a cylindrical insulator inserted into the opening of the conductor and a cylindrical resistor inserted into the opening of the insulator. Since the insulator is between the conductor and the ... | 01/21/1997 |
| 5047737 | Directional coupler and termination for stripline and coaxial conductors A directional coupler having coupled striplines provided between ground planes includes dielectric layers having a dielectric constant greater than the dielectric constant of air interposed between the stripline conductors and each of the ground planes, t... | 09/10/1991 |
| 5039961 | Coplanar attenuator element having tuning stubs A resistive film attenuator element comprised of a dielectric-mounted resistive film distributed ladder network having tuning stubs, combined in a coplanar structure, to provide a wide band attenuator having a substantially flat frequency response over a ... | 08/13/1991 |
| 4779064 | Radio frequency coaxial cable A coaxial cable for coupling radio frequency (RF) signals therethrough with a predetermined, nominal attenuation comprising a center conductor selected to maintain the attenuation of the coaxial cable at substantially the nominal attenuation substantially... | 10/18/1988 |
| 4672335 | Printed circuit wiring board having a doped semi-conductive region termination A matched load for an unloaded terminating end of a signal transmission line on a printed circuit wiring board avoids reflecting pulses back down the line. A non-reflective attenuation region is provided under the unloaded terminating end, such region bei... | 06/09/1987 |
| 4647877 | Broadband signal termination apparatus comprising series cascade of resistors and transmission lines A signal termination device is illustrated using planar circuit technology for providing both broadband capabilities from DC to over ten gigahertz while maintaining small size and high power dissipation capabilities. This is accomplished by plating a seri... | 03/03/1987 |
| 4638268 | Microwave absorber comprised of a dense silicon carbide body which is water cooled A microwave absorber, particularly, a microwave absorber intended for use in an electron beam accelerator, having an increased maximum power characteristic. The microwave absorber is formed of a body of dense silicon carbide having a hollow portion and a ... | 01/20/1987 |
| 4580118 | Superconducting coil The superconducting coil comprises a high magnetic field inner section and a low magnetic field outer section disposed around the inner section. Both the inner and outer sections are forcedly cooled and extend over the entire axial length of the supercond... | 04/01/1986 |
| 4365215 | High power coaxial power divider The power handling capacity of a matched coaxial transmission line power divider is increased with a minimum increase in losses by mounting the isolation resistor(s) within the dielectric volume of the coaxial transmission line and on an electrically-insu... | 12/21/1982 |
| 4260962 | RF Termination for coaxial transmission lines A step change in the diameter of the inner conductor or the outer conductor of the transmission line with absorptive material having a shoulder abutting against the step change and tapering toward the opposite conductor with the radius of the absorptive m... | 04/07/1981 |
| 4001736 | Direct contact rotary attenuator A rotary step attenuator having a housing and a rotor rotatably mounted in the housing. An array of attenuator elements is mounted on the rotor, appearing in an end view as chords of a circle whose center is at the axis of rotation of the rotor. Each atte... | 01/04/1977 |
