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| Number | Title | Issue Date |
| 7154349 | Coupled-inductor multi-band VCO A multi-band VCO employs a coupled-inductor based resonator having N≧2 ports. Each port has an inductor and at least one capacitor. The N inductors for the N ports are magnetically coupled. The inductors/ports may be selectively enabled and disabled to allow the V... | 12/26/2006 |
| 5630216 | Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer A micropower RF transdponder employs a novel adaptation of the superregenerative receiver wherein the quench oscillator is external to the regenerative transistor. The quench oscillator applies an exponentially decaying waveform rather than the usual sine... | 05/13/1997 |
| 5054118 | Balanced mixer utilizing filters A mixer circuit has a first filter connected between a local oscillator terminal and a node and another filter connected between a RF signal terminal and the node. A first circuit path extends from the node through a first diode to a first tuned circuit w... | 10/01/1991 |
| 4806872 | Frequency modulation receiver employing frequency divider A frequency dividing arrangement comprises an injection-locked divider arranged for receiving an incoming signal Fin and for providing a frequency divided signal Fout in response thereto, and a frequency divider coupled to the inject... | 02/21/1989 |
| 4758794 | Sound intermediate frequency discriminator A discriminator for a plurality of sound intermediate frequencies which are different from each other includes a plurality of selectively operable resonance circuits each of which is formed of a winding of a respective fixed inductance value and a capacit... | 07/19/1988 |
| 4716377 | Piezoelectric resonance component having an improved group delay time characteristic A piezoelectric resonance component which in view of an equivalent circuit comprises a series arm formed by one or more resonators (Xsl. . . Xsn) connected in series between input and output ends and one or more parallel arms includi... | 12/29/1987 |
