H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 5/40 (2006.01) H04N 7/24 (2006.01)
Patent
CA 2083079
An A/D converter 1 converts analog modulation signals, such as video signals and audio signals, into digital modulation signals. A center frequency data setting circuit 6 outputs center frequency data for setting the center frequency of an FM wave. An operation unit 5 outputs such addition data, on the basis of the center frequency data and average frequency data from a counter circuit 4, as will make the average frequency of the FM wave substantially identical with the center frequency that has been set. An adder 2 adds the digital modulation signals and the addition data, and outputs addition digital signals. A DDS 3 accumulates an addition digital signal in every sampling period supplied from a reference oscillator 7. In the ROM 32 of the DDS 3 are stored sine wave data and the ROM 32, having the accumulated signals as its address input, outputs the sine wave data. The counter circuit 4 figures out the average frequency of the FM wave from the DDS 3, and supplies average frequency data to the operation unit 5.
Corporation Nec
Smart & Biggar
LandOfFree
Digital fm modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital fm modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital fm modulator will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1956743