Quotables
"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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 |
| 8258843 | Semiconductor device and method for operating the same A semiconductor device includes a clock delay section configured to receive an external clock signal, reflect different delay amounts on the external clock signal, and generate a plurality of synchronization clock signals, a clock synchronization section configured ... | 09/04/2012 |
| 7039885 | Methodology for design of oscillator delay stage and corresponding applications Methods are described that involve characterizing an oscillator's jitter or phase noise over a plurality of the oscillator's effective number of delay stages. The oscillator comprises a series of delay stages. Each one of the effective number of delay stages, if sel... | 05/02/2006 |
| 6807509 | Method and systems to measure propagation delay in semiconductor chips A method and systems to evaluate the propagation delay within a semiconductor chip (305) that is embedded in an electronic system without requiring measurement apparatus and specific electrical contacts is disclosed. Since most of electronic systems use a mic... | 10/19/2004 |
| 6066970 | Circuit for producing clock pulses from an inputted base band signal In order to reproduce a clock having little jitter in the clock reproduction in data transmission, a reproduced clock is outputted by sampling an inputted base band signal by using sampling pulses by means of a sampler and shaped by means of a flip-flop. ... | 05/23/2000 |
| 5877989 | Semiconductor memory device A semiconductor memory device capable of reducing a delay in the conversion of an input chip enable signal having a TTL level, providing a quick chip enable access and avoiding an increase in current consumption even when the quick chip enable access is m... | 03/02/1999 |
| 5699301 | Semiconductor memory device A semiconductor memory device capable of reducing a delay in the conversion of an input chip enable signal having a TTL level, providing a quick chip enable access and avoiding an increase in current consumption even when the quick chip enable access is m... | 12/16/1997 |
| 5585758 | Current source gate drive circuit for simultaneous firing of thyristors A current source gate drive circuit for simultaneous firing of a set of series or parallel thyristors is described. The circuit includes two current loops, each of which serves as a current transformer primary. Electrically insulating tubes enclose the cu... | 12/17/1996 |
| 5469098 | Isolated gate drive A drive circuit for use in UPS and like devices, designed to derive high-level switching signals from low-level logic signals. The drive circuit has an input circuit which drives the primary of an air-core transformer, the input drive circuit having an os... | 11/21/1995 |
| 5220204 | Voltage and temperature compensated emitter-follower driver The switching frequency of switching power supplies using bipolar emitter-follower transistor amplifiers to drive field-effect output transistors is increased from a currently typical frequency of 100 KHz to at least 1.5 MHz. by reducing the heating in th... | 06/15/1993 |
| 4384254 | Oscillator/driver circuit for fluxgate magnetometer A low power expenditure oscillator/driver circuit including a transistor drive and control windings connected thereto and being operatively wound on a magnetic core suitable for use in a fluxgate magnetometer is disclosed. Its low power expenditure feat... | 05/17/1983 |
| 4058743 | Pulse generating circuit A pulse is generated in an output transformer and this pulse is used to provide a spark across a spark gap for the purpose of igniting any gas/air mixture present. The circuit operates from a 1.5 volt d.c. source. A blocking oscillator is energized by a two po... | 11/15/1977 |
| 4012644 | Blocking oscillator driver for a microwave latching ferrite device A microwave latching ferrite device is provided of the type associated with microwave transmission lines for effecting a phase shift or switching of the microwave signal being propagated. Driving means is provided for a latch winding of the ferrite device... | 03/15/1977 |
