Quotables
"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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 |
| 7319427 | Frequency diverse array with independent modulation of frequency, amplitude, and phase Method and apparatus for a frequency diverse array. Radio frequency signals are generated and applied to a power divider network. A progressive frequency shift is applied to all radio frequency signals across all spatial channels. Amplitude weighting signals are app... | 01/15/2008 |
| 6859801 | Efficient memoryless protocol for tag identification The invention features a method and system for identifying a plurality of tags using an efficient memoryless protocol. The system includes a reader and a plurality of tags. The reader is adapted to maintain an ordered set of query strings; select a string from the s... | 02/22/2005 |
| 6416093 | Energy absorption, rotation and redirection system for use with racing vehicles and a surrounding barrier An energy absorption, rotation and redirection system for use with a vehicle traveling astride a barrier, the vehicle including a front end with a bumper and first and second sides. The system includes a plurality of air bag actuating units mounted at spe... | 07/09/2002 |
| 5922036 | Lane detection sensor and navigation system employing the same A lane detection sensor for detecting opposite lane markers of a road, comprising: an image shooting member for shooting an image of the road ahead of a running motor vehicle; an image data memory for storing data on the image of the road from the image s... | 07/13/1999 |
| 5815113 | Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems A direct detection receiver for a passive microwave and millimeter wave radiometric imaging system. The receiver includes a balanced switch low-noise amplifier (BSLNA). A front-end, low-noise amplifier (LNA) is inserted before the BSLNA to achieve a low-n... | 09/29/1998 |
| 5635941 | Method and apparatus for feeding over-modulated message signals to antennas of an antenna array A feeding method and device, particularly for a Doppler VOR system, and to a Doppler VOR system using such a feeding device. The feeding method performs a blending function, which is an approximation of the sinX/X function limitedly to the three central l... | 06/03/1997 |
| 5572427 | Doppler position bearing angle locator A Doppler position locator for determining the bearing of a signal source from a moving receiver. The signal source encodes a digital signal indicating its actual transmitting frequency on a transmitted carrier. The moving receiver such as an airplane rec... | 11/05/1996 |
| 4954835 | Radiodirection finding method and apparatus using doppler effect frequency modulation Radiodirection finding method and apparatus using Doppler effect frequency modulation for measuring the bearing of a source transmitting a high frequency signal, wherein either on the reception side or on the transmission side, several antenna strands are... | 09/04/1990 |
| 4306240 | Bearing measuring system for frequency modulation A bearing measuring system for determining the direction of arrival of a wave by rotating directional antennas or a goniometer to which the directional antennas are connected or rotating the directivity of such directional antennas or goniometer by electr... | 12/15/1981 |
| 4302759 | Radio direction finder A radio direction finder, designed to determine the direction of arrival of radio waves utilizing a nondirectional antenna and a plurality of directional antennas having respective directivities, comprises an oscillator for producing A.C. signals having a... | 11/24/1981 |
| 4263597 | Nondisruptive ADF system An automatic radio direction finding (ADF) system having inputs for four quadrature antennas each having a cardioid pattern. Each input is amplitude modulated in quadrature and then combined in a hybrid circuit to produce a nondirectional pattern. The com... | 04/21/1981 |
| 4135191 | Coherent demodulator A coherent demodulator for recovering the phase modulation from an input intermediate frequency signal includes a phase locked loop having switchable frequency and phase detectors. During initial acquisition the phase locked loop frequency is adjusted to ... | 01/16/1979 |
| 4050072 | Signal combining apparatus A signal combiner for combining two out-of-phase signals wherein one of these signals increases in amplitude over a range of frequencies at a rate of 6dB per octave. The resultant output signal obtained from the combiner appears to be that of two signals ... | 09/20/1977 |
| 4025924 | Mobile direction comparator A Mobile Directional Comparator (MDC) used in combination with a communications receiver to process received signal information from a two port antenna system to drive a directional indicator. A radio frequency modulator modulates two received cardioid an... | 05/24/1977 |
| 3967280 | Direction finding system with integrated loop and sense antenna assembly An automatic radio direction finding system employing an integrated antenna unit containing both sense and loop antennas in a single compact enclosure. Signal processing circuitries by means of which a low-frequency switching modulation is imposed on one ... | 06/29/1976 |
