Celebrity Inventors
Penn Jillette of Penn and Teller fame has patented a "Hydro-Therapeutic Stimulator", which uses a hot tub for stimulation.
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 |
| 7355785 | Gain-clamped semiconductor optical amplifier A gain-clamped semiconductor optical amplifier is disclosed. The amplifier includes a gain waveguide for amplifying an optical signal input to the gain waveguide, and a grating layer, in contact with the gain waveguide, having a first grating disposed at a first end... | 04/08/2008 |
| 7324559 | Centralized synchronization for wireless networks This invention synchronizes the sample clocks of an entire wireless network from a single central base station. Unlike a conventional digital radio network where every terminal must have a synchronization circuit in its receiver to adjust the sample clock, each of t... | 01/29/2008 |
| 7173882 | Methods and systems for performing horological functions using time cells A simple electronic horological device, termed a time cell, is presented with associated methods, systems, and computer program products. A time cell has an insulated, charge storage element that receives an electrostatic charge through its insulating medium, i.e. i... | 02/06/2007 |
| 7134010 | Network interface with double data rate and delay locked loop A network device is provided which includes a device input, at least one port, a frequency doubler, a data I/O device, and a programmable delay locked loop. The frequency doubler is coupled to the input and configured to receive an input signal and output an output ... | 11/07/2006 |
| 7024576 | Network interface using programmable delay and frequency doubler A network device includes an input, at least one port, a frequency doubler, a data I/O device, and a variable delay circuit. The input is for receiving an external clock signal. The frequency doubler is coupled to the input and configured to receive an input signal ... | 04/04/2006 |
| 6993052 | System and method for delay compensation for a pulsed laser Method and system provide a variable delay between the external trigger pulse for a laser system and the light pulse such that the total delay is controlled. The method and system utilize a digital time measuring circuit which measure a time interval which correspon... | 01/31/2006 |
| 6934866 | Network interface using programmable delay and frequency doubler A network device includes an input, at least one port, a frequency doubler, a data I/O device, and a variable delay circuit. The input is for receiving an external clock signal. The frequency doubler is coupled to the input and configured to receive an input signal ... | 08/23/2005 |
| 6574169 | Delay test system for normal circuit A delay test system includes an electronic circuit, such as a normal circuit which has a portion to be tested and a plurality of flip-flop circuits. In this event, each of flip-flop circuits is serially connected to each other to perform a delay test for ... | 06/03/2003 |
| 6086244 | Low power, cost effective, temperature compensated, real time clock and method of clocking systems A temperature compensated clock and method of clocking systems are provided. The clock preferably has an oscillator for generating an oscillating waveform signal at a preselected frequency and a frequency divider responsive to the oscillator for dividing ... | 07/11/2000 |
| 5959607 | Trace coloring system and method for a signal measurement device having a color display A trace coloring system enhances signal information that is provided to a user of a signal measurement device, for example, a digitizing oscilloscope or spectrum analyzer, having a color display for displaying graphical depictions of electrical signals. T... | 09/28/1999 |
| 5923621 | Clock doubler circuit with duty cycle control A clock doubler circuit with duty cycle control includes an exclusive-OR, a toggle flip-flop, a plurality of control bit flip-flops, a primary delay element, a plurality of secondary delay elements, and a multiplexer. The toggle flip-flop has a clock inpu... | 07/13/1999 |
| 5901116 | Programmable timing unit for generating multiple coherent timing signals A programmable timing unit having a number of event markers circuits that receive a master clock signal and generate an output when a predetermined time occurs. Optionally, the event marker circuit can add an interpolated delay time to provide greater res... | 05/04/1999 |
| 5838754 | Vernier delay line interpolator and coarse counter realignment A Vernier delay line interpolator provides a precision level smaller than a clock period by delaying a periodic pulse signal in a delay line which has equally time-spaced taps and a total delay that is a harmonic H greater than 1 of the pulse period. The ... | 11/17/1998 |
| 5796682 | Method for measuring time and structure therefor A time measurement circuit (100) measures a time interval between two events. The time measurement circuit (100) includes two digital phase counters (10' and 10"), a period counter (210), and a digital calculator (310). The first digital phase counter (10... | 08/18/1998 |
| 5764598 | Delay time measurement apparatus for delay circuit A delay time measurement apparatus of delay circuit is configured to minimize the influence of periodic noises for accurately measuring the delay time. The delay time measurement apparatus includes: a voltage controlled oscillator (VCO) whose oscillation ... | 06/09/1998 |
| 5621705 | Programmable timing unit for generating multiple coherent timing signals A programmable timing unit having a number of event markers circuits that receive a master clock signal and generate an output when a predetermined time occurs. Optionally, the event marker circuit can add an interpolated delay time to provide greater res... | 04/15/1997 |
| 5396183 | Method for continuously measuring delay margins in digital systems A digital data propagation delay margin monitoring circuit that includes (a) a digital data propagation unit having a send flip-flop, a combinatorial delay, and a receive flip-flop; and (b) a margin detection circuit having a test flip-flop that receives ... | 03/07/1995 |
| 5256964 | Tester calibration verification device A circuit for verifying the accuracy a tester, for enhancing its calibration and for providing tracking between testers. The circuit includes a delay element, first and second multiplexers connected to the input and output of the delay element, respective... | 10/26/1993 |
| 5199008 | Device for digitally measuring intervals of time An apparatus for measuring intervals of time, which requires only a simple counter circuit (15) and delay circuit (17), through which electrical pulses travel. The counter circuit (15) counts pulses during the time interval. During each count of the count... | 03/30/1993 |
| 4995019 | Time period measuring apparatus with adaptive averaging An adaptive time period measurement technique which provides full speed for every measurement period with increased resolution afforded from repeated measurements. The time measure is produced by adaptively filtering a number of prior time measures. Each ... | 02/19/1991 |
| 4982387 | Digital time base with differential period delay A digital time base with differential period delay uses the difference in period between a master oscillator and a voltage controlled oscillator phase-locked to the master oscillator to achieve small time delay increments. The oscillators are used to driv... | 01/01/1991 |
| 4916677 | Automatic period and frequency measurements An automatic period and frequency measurement feature for an analog oscilloscope uses a single sweep signal and a delay trigger to detect edges. The sweep rate for the sweep signal is set to the highest rate that provides at least one cycle of the input s... | 04/10/1990 |
| 4879700 | Method and apparatus for determining the time between two signals A time interval counter permits the time interval between a first signal and one of a series of timing signals to be measured to less than &#b1;2 nanoseconds without using microwaves and high power-consuming devices. The time interval counter uses a first... | 11/07/1989 |
| 4875201 | Electronic pulse time measurement apparatus Time measurement apparatus comprising a delay line having a plurality of taps, each tap having an associated latch. An inverting AND gate has its output connected to an initial tap of the delay line, an input signal having two conditions connected to one ... | 10/17/1989 |
| 4866685 | Printed circuit board fabrication technique The fabrication of a printed circuit board (26) usually includes the step of testing the board with a testing machine (24) to verify operability. The testing machine accomplishes such testing by transmitting test signals to the board via a transmission li... | 09/12/1989 |
| 4841497 | Digital time base with corrected analog interpolation A digital time base with analog interpolation provides a variable reference voltage to assure that the period of an analog ramp between a zero value and a maximum value is equal to the time interval between range clock pulses. A time base error is determi... | 06/20/1989 |
| 4841500 | Printed circuit board fabrication technique The fabrication of a printed circuit board (26) usually includes the step of testing the board with a testing machine (24) to verify operability. The testing machine accomplishes such testing by transmitting test signals to the board via a transmission li... | 06/20/1989 |
| 4680620 | Measurement of SC/H phase using a subcarrier time mark generator and a calibrated phase shifter Apparatus for indicating the timing relationship between a reference point of a repetitive input signal, e.g. the horizontal sync point of a video signal, and a signal element that repeats at a higher frequency than the input signal, e.g. an element of th... | 07/14/1987 |
| 4109182 | Delayed sweep system for an oscilloscope An improved delayed sweep system is disclosed for an oscilloscope having main and delayed sweeps. A trigger pickoff circuit has means for providing a pair of pre-selected trigger pickoff points on the delaying sweep so that delayed sweeps may be generated... | 08/22/1978 |
| 4074190 | Signal measuring apparatus Apparatus for measuring the time integral of a signal between pairs of time points comprises a ramp voltage generator and a plurality of pairs of potentiometers. A comparator circuit is associated with each potentiometer to provide a switching signal at t... | 02/14/1978 |
| 3975684 | Sweep generator apparatus and method An improved sweep circuit for an oscilloscope or the like has an adjustably delayed sweep which is time shared to display separate recurring events of interest alternately to provide an apparently simultaneous display of the events. The adjustable delay b... | 08/17/1976 |
