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Class Information
Number: 329/359
Name: Demodulators > Amplitude modulation demodulator > Input signal combined with local oscillator or carrier frequency signal (e.g., synchronous demodulator) > Input signal applied directly to local oscillator
Description: Subject matter where the input AM signal interacts directly with the local secondary source of oscillations.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7394874 |
Up/down conversion circuitry for radio transceiver |
Jul. 1, 2008 |
| 7194044 |
Up/down conversion circuitry for radio transceiver |
Mar. 20, 2007 |
| 6356599 |
AFC device and method of controlling reception frequency in a dual-mode terminal |
Mar. 12, 2002 |
| 5751197 |
Low-power, self-quenching superregenerative detector |
May. 12, 1998 |
| 5603111 |
Synchronous tracking AM receiver |
Feb. 11, 1997 |
| 5241687 |
Phase controlling phase of local subcarrier signal to correspond to transmitted pilot signal |
Aug. 31, 1993 |
| 5105162 |
Electrically tuned RF receiver, apparatus and method therefor |
Apr. 14, 1992 |
| 4143324 |
Transistorized superregenerative radio frequency detector |
Mar. 6, 1979 |
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