Celebrity Inventors
Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".
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 |
| 8179317 | Method and apparatus for passive geolocation using synthetic-aperture processing Using in-phase and quadrature components of a received signal, spatial and temporal information is utilized to generate a maximum likelihood coefficient from the measured data to geolocate an emitter of unknown frequency. In one embodiment an iso-Doppler contour is ... | 05/15/2012 |
| 7132981 | Method of locating object using phase differences among multiple frequency beacons transmitted from spaced apart transmitter sites A technique for geolocating (mobile) objects within an environment where other locating systems, such as GPS-based systems, may not be expected to operate successfully, uses at least three transmitter sites whose geolocations are fixed and known, and which transmit ... | 11/07/2006 |
| 5008679 | Method and system for locating an unknown transmitter The method of locating an unknown radio-frequency transmitter includes: (a) receipt of signals radiated from the transmitter by a plurality of receivers; (b) retransmission of the received signals to a plurality of antennas; (c) performing a time differen... | 04/16/1991 |
| 4810947 | Digital error detector for IFM receiver A process and means for identifying erroneous frequency measurements made by an IFM receiver using a multi-channel delay line discriminator. Expected phase codes are compared with measured phase codes. An error signal is generated when the magnitude of de... | 03/07/1989 |
| 4095226 | System for communication A digital communication system for the transmission of digital data with a modulated carrier uses a modulation locked loop and pseudo-random code to develop synchronization signals for the digital data signals and to ensure a high level of communication r... | 06/13/1978 |
| 4087816 | VLF radio position location system A low frequency radio position location system for aircraft or other vehicles for operating in conjunction with ground stations transmitting at a first VLF radio frequency which is shifted in frequency by a small amount to a second frequency at fixed inte... | 05/02/1978 |
| 4072950 | LF/MF navigation system A navigation aid comprises two transmitters transmitting signals in the LF/MF range (250 kilohertz-490 kilohertz) and a receiver indicator for receiving each of the transmitted signals, translating them to a common frequency, and indicating the phase diff... | 02/07/1978 |
| 4035802 | Method and apparatus for wind measurement A wind measuring system utilizing a very low frequency (VLF) radio navigation system including an observation station, at least three transmitting stations for sending out the VLF signal, and a sounding device positioned in the atmosphere for receiving th... | 07/12/1977 |
| 4028703 | Apparatus for radio position-fixing of the hyperbolic phase-measurement type A radio position-fixing system using hyperbolic phase measurement, includ two transmitting stations which radiate a specific, programmed, sequential and recurrent waveform and a movable receiver capable of synchronously receiving and detecting the transm... | 06/07/1977 |
