Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2006-05-16
2006-05-16
Nguyen, Simon (Department: 2685)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C455S067130, C455S158300, C455S266000, C375S360000, C375S375000, C327S048000
Reexamination Certificate
active
07046964
ABSTRACT:
A method and apparatus provide for monitoring radio frequency signals and, in conjunction with the monitoring, determining frequency of a received dominant radio frequency signal. Zero amplitude transitions of the signal are counted in primary and secondary sampling periods to determine frequency and frequency stability. The method and apparatus can be used to tune to radio frequency signals having frequencies in a list of frequencies to be monitored and detecting signals in the radio frequency spectrum on other frequencies. The monitoring and scanning may occur simultaneously, sequentially, or in any order or sequence. The frequencies of dominant signals received are determined and added to the list for monitoring. The receiver may be tuned to a frequency determined immediately upon determination of the frequency determined, after storage of the frequency determined, only after a signal on the currently monitored frequency terminates, or upon other conditions. A user of the apparatus can build a list of frequencies to be monitored automatically without sophisticated knowledge or equipment.
REFERENCES:
patent: 4350950 (1982-09-01), Waldmann et al.
patent: 4651089 (1987-03-01), Haigh
patent: 4727591 (1988-02-01), Manlove
patent: 5457716 (1995-10-01), Ang et al.
patent: 5471402 (1995-11-01), Owen
patent: RE35296 (1996-07-01), Ladas et al.
patent: 5613232 (1997-03-01), Toshida et al.
patent: 5710710 (1998-01-01), Owen et al.
patent: 5940748 (1999-08-01), Daughtry et al.
patent: 5943606 (1999-08-01), Kremm et al.
patent: 6023615 (2000-02-01), Bruckert et al.
patent: 6137844 (2000-10-01), Maresca
patent: 6246267 (2001-06-01), Barsoum et al.
patent: 6335953 (2002-01-01), Sanderford et al.
Barnett Richard
Brennan Terence
Sullivan Terence Sean
Counter Technologies, LLC
Leydig , Voit & Mayer, Ltd.
Nguyen Simon
LandOfFree
Method and apparatus for determining the frequency of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for determining the frequency of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining the frequency of a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3580805