Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synthesizer
Reexamination Certificate
2009-01-08
2010-11-02
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synthesizer
C327S106000, C327S107000
Reexamination Certificate
active
07825702
ABSTRACT:
To provide a synthesizer module that can be used not only in a destination area but also in the whole world and that can be readily set in output frequency. In the synthesizer module, a calculation formula table of a nonvolatile memory stores a plurality of frequency modes and the calculation formula of carrier frequencies corresponding to those frequency modes, and further stores, in its certain area, a frequency mode set during an initial setting of the device. A CPU, when receiving a channel number from a rotary SW during a frequency setting, calculates, based on a calculation formula corresponding to a currently set frequency mode, a carrier frequency corresponding to the channel number. This carrier frequency is set to a CONT of a PLL part.
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Systec Research Inc. “UHF Band Frequency Synthesizer for SFN & MFN of Digital TV Broadcasting Model: DCN-SP501/801-Bxx” (Nov. 2005).
Jacobson & Holman PLLC
Nihon Dempa Kogyo Co. Ltd
Wells Kenneth B.
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