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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0178980 (1988-04-07) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 47 인용 특허 : 4 |
Two receiver channels each driven by a common local oscillator signal are employed. The signal developed by the first receiver channel is used to drive in phase (I) and quadrature (Q) counters of a Castas-loop, which phase-locks to the signal. The signal developed by the second receiver channel is u
CM,6. A GPS satellite receiver comprising in combination: means for generating a local oscillator signal; a first receiver channel including, means for receiving a satellite signal which is biphase modulated by a PRN code, and down-converting means connected to said local-oscillator-generating means
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