Modulators inventions 07/07

20070164834 - Gmsk/edge modulator with switching transition smoothing: To minimize abrupt changes in modulated signal amplitude when switching between modulation types in a multi-modulation system, a “smoothing” circuit is used. When the modulation type is changed in a multi-slot modulation, the last symbol of the previous slot is overwritten and modulation is controlled by a smoothing circuit during... Agent: Texas Instruments Incorporated

20070164835 - All-digital phase modulator/demodulator using multi-phase clocks and digital pll: Multi-phase clocks are used to encode and decode signals that are phase-modulated. The input signal is phase-compared with a feedback clock. Phase differences increment or decrement an up/down counter. The count value from the up/down counter is applied to a phase rotator, which selects one clock phase from a bank... Agent: Stuart T Auvinen

20070152767 - High speed passband phase modulation apparatus and method of the same: A high speed passband phase modulation apparatus and method are provided. In the phase modulation apparatus, an RF phase shifter modulates a phase of a local signal that is generated in a VCO according to a digital input. The RF phase shifter is controlled by a phase-controlled loop so that... Agent: Sughrue Mion, PLLC