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Global positioning system course acquisition code receiver 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04K-001/00
출원번호 US-0607824 (1984-05-07)
발명자 / 주소
  • Trimble Charles R. (Los Altos Hills CA)
출원인 / 주소
  • Trimble Navigation, Inc. (Sunnyvale CA 02)
인용정보 피인용 횟수 : 181  인용 특허 : 0

초록

A GPS satellite receiver is disclosed in which the frequency of the received satellite signal is down converted in a single step by a balanced mixer driven by a half-frequency local oscillator and the down-converted satellite signal is converted from analog-to-digital form by a hard limiter.

대표청구항 ▼

A GPS satellite receiver for locking to a satellite signal, the receiver comprising in combination: means for receiving the satellite signal; first coupling means; down-converting means connected to said receiving means by said first coupling means, said down-converting means for down converting to

이 특허를 인용한 특허 (181)

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  148. Mark Zhodzicshsky RU; Victor Veitsel RU; Stanislov Sila-Novatisky RU; Javad Ashjaee ; Lionel Garin, Spread spectrum receiver using a pseudo-random noise code for ranging applications in a way that reduces errors when a multipath signal is present.
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  149. Kohli Sanjai ; Chen Steven, Spread spectrum receiver with fast signal reacquisition.
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  150. Sanjai Kohli ; Steven Chen ; Charles R. Cahn ; Mangesh Chansarkar ; Greg Turetsky, Spread spectrum receiver with multi-bit correlator.
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  151. Cahn Charles R. ; Kohli Sanjai, Spread spectrum receiver with multi-path cancellation.
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  152. Cahn Charles R. ; Chansarkar Mangesh ; Kohli Sanjai, Spread spectrum receiver with multi-path correction.
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  153. Cahn, Charles R.; Chansarkar, Mangesh; Kohli, Sanjai, Spread spectrum receiver with multi-path correction.
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  154. Norman Charles P. ; Cahn Charles R., Strong signal cancellation to enhance processing of weak spread spectrum signal.
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  155. Norman,Charles P.; Cahn,Charles R., Strong signal cancellation to enhance processing of weak spread spectrum signal.
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  156. Brown, Jim; Zhang, Gengsheng; Garin, Lionel, Synchronizing a radio network with end user radio terminals.
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  157. Zimmerman,Kurt R., Synchronizing ranging signals in an asynchronous ranging or position system.
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  158. Underbrink, Paul A.; Gronemyer, Steven A., System and method for despreading in a spread spectrum matched filter.
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  159. Underbrink, Paul A.; Gronemyer, Steven A., System and method for despreading in a spread spectrum matched filter.
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  160. Cohen Clark E. ; Parkinson Bradford W. ; Powell John D. ; Lawrence David G. ; Pervan Boris S. ; Cobb Henry S., System and method for generating precise position determinations.
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  161. Wortham, Larry C., System and method for locating a mobile unit within the service area of a mobile communications network.
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  162. Derrick, David; Derrick, Bruce; Horrocks, Scott, System and method for monitoring individuals using a beacon and intelligent remote tracking device.
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  163. Chang, Steve; Pande, Ashutosh; Garin, Lionel Jacques; Chadha, Kanwar; Peng, Leon Kuo-Liang; Zhang, Gengsheng; Vantalon, Nicolas Patrick; Turetzky, Gregory, System and method for providing location based services over a network.
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  164. Beasley Dale E. (Flower Mound TX) Kennedy ; III William C. (Dallas TX) Westerlage Kenneth R. (Fort Worth TX), System and method for remote patching of operating code located in a mobile unit.
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  165. Oliphant, P. Christian; Derrick, Bruce G., Tracking device incorporating cuff with cut resistant materials.
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  166. Roper, Clark L.; Cummins, Laurie H.; Volpi, John P.; Hastings, III, John L., Tracking device incorporating enhanced security mounting strap.
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  167. Rowley, Henry A.; Baluja, Shumeet, Transportation routing.
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  168. Rowley, Henry Allan; Baluja, Shumeet, Transportation routing.
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  169. Rowley, Henry; Baluja, Shumeet, Transportation routing.
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  170. Rowley, Henry; Baluja, Shumeet, Transportation routing.
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  171. Rowley, Henry; Baluja, Shumeet, Transportation routing.
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  172. Kohli Sanjai ; Chen Steven, Triple multiplexing spread spectrum receiver.
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  173. Kohli, Sanjai; Chen, Steven, Triple multiplexing spread spectrum receiver.
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  174. Kohli, Sanjai; Chen, Steven, Triple multiplexing spread spectrum receiver.
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  175. Kohli,Sanjai; Chen,Steven, Triple multiplexing spread spectrum receiver.
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  176. Rodal Eric B. (Cupertino CA) Wagner Gary L. (Menlo Park CA) Lau Chung Y. (Sunnyvale CA), Ultra low-power integrated circuit for pseudo-baseband down-conversion of GPS RF signals.
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  177. Wortham Larry C., Vehicle locating and communicating method and apparatus.
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  178. Wortham Larry C., Vehicle locating and communicating method and apparatus.
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  179. Wortham Larry C., Vehicle locating and communicating method and apparatus.
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  180. Wortham Larry C. (Garland TX), Vehicle locating and communicating method and apparatus.
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  181. Cunning Michael D., Voltage controlled oscillator with adaptive closed loop coarse tune.
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