Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-06-26
2007-06-26
Urban, Edward F. (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S067110, C455S067140, C455S226100, C375S224000, C375S221000
Reexamination Certificate
active
10241069
ABSTRACT:
A method includes communicating a first signal at a transmitter. The first signal has a first frequency. The method also includes receiving a second signal at a receiver. The second signal has a second frequency, and the second signal comprises the first signal converted from the first frequency to the second frequency. In addition, the method includes determining whether the transmitter and receiver are functional using at least one of the first and second signals.
REFERENCES:
patent: 3862380 (1975-01-01), Hekimian et al.
patent: 4028622 (1977-06-01), Evans et al.
patent: 4580262 (1986-04-01), Naylor et al.
patent: 4648124 (1987-03-01), Mantovani et al.
patent: 4918684 (1990-04-01), Boschet et al.
patent: 5337316 (1994-08-01), Weiss et al.
patent: 5930707 (1999-07-01), Vambaris et al.
patent: 6070086 (2000-05-01), Dobrica
patent: 6070091 (2000-05-01), Hogevik
patent: 6108351 (2000-08-01), Hardy et al.
patent: 6253060 (2001-06-01), Komara et al.
patent: 6356207 (2002-03-01), Oouchi
patent: 2002/0042290 (2002-04-01), Williams et al.
patent: 2002/0173331 (2002-11-01), Noh
patent: 2004/0037353 (2004-02-01), Henriksson
patent: WO 97/39597 (1997-10-01), None
Barlow et al., “RF Loopback Circuit Facilitates Remote BER Testing of Base Station”, Motorola Technical Developments, Motorola Inc., vol. 38, XP000906017, ISSN: 0887-5286, pp. 20-21, Jun. 1999.
Nishimori et al., “Automatic Calibration Method of Adaptive Array for FDD Systems”, IEEE Conference Proceedings, vol. 2, XP010514686, pp. 910-913, Jul. 16, 2000.
Lau et al., “Calculation of Third Order Intermodulation Spectrum”, Electronics Letters, IEE Stevenage, GB, vol. 26, No. 21, XP000109655, pp. 1776-1778, Oct. 11, 1990.
Chow Charles
Fulbright & Jaworski LLP
Northrop Grumman Corporation
Urban Edward F.
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