Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 5351270 | Portable cellular telephone using spread spectrum communication with mobile transceiver A portable cellular telephone system including a stationary transceiver for radio communication with a plurality of mobile transceivers within a geographic cell, a mobile transceiver within said geographic cell and having sufficient power to communicate w... | 09/27/1994 |
| 5349608 | Viterbi ACS unit with renormalization In a Viterbi decoder including an add-compare-select (ACS) processor, speed is enhanced without loss of performance by maintaining a dynamic cumulative metric range for computed state metrics. Current state metrics are added to new branch metrics to obtai... | 09/20/1994 |
| 5283780 | Digital audio broadcasting system A digital audio broadcasting system that is capable of providing a large number of high quality stereophonic channels to mobile receivers in an environment with severe multipath delay and fading. Optimum combination of frequency and time diversity to guar... | 02/01/1994 |
| 5144642 | Interference detection and characterization method and apparatus The interference detection and characterization system of this invention supports modern communication systems which have to contend with a variety of intentional and unintentional interference souces. As an add-on to existing communications equipment, th... | 09/01/1992 |
| 5126682 | Demodulation method and apparatus incorporating charge coupled devices A demodulator apparatus for demodulating a data bearing broadcast signal in the absence of mixers and without incurring quantization errors. The apparatus incorporates a receiver for receiving a broadcast signal and producing therefrom a predetermined int... | 06/30/1992 |
| 5041833 | Precise satellite ranging and timing system using pseudo-noise bandwidth synthesis A precise ranging and timing system using pseudo-noise bandwidth synthesis to provide precise orbit determination for geosynchronous and low earth orbit satellites, navigation of low earth orbiting satellite through signals transmitted through geosynchron... | 08/20/1991 |
| 4654854 | Method and apparatus for decoding threshold-decodable forward-error correcting codes Decoding performance of threshold-decodable forward-error-correcting codes is improved through the use of three methods. These methods employ measurements of received-digit reliability, and extended examination of syndrome digits. The first disclosed meth... | 03/31/1987 |
