Patent · US Active

Frequency shift keying modulator and applications thereof

US7978789B2 · kind B2 · utility

2Cited by

4References

12Claims

0Family size

Assignee

Broadcom Corporation · US

Inventors

Tom Baker · Los Angeles, US
Henrik T. Jenson · Long Beach, US

Key dates

Filing date	Jun 18, 2008
Grant date	Jul 12, 2011
Priority date	—
Expiry date	Jun 18, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An FSK modulator and applications thereof are disclosed. The FSK modulator comprises a phase-locked loop, a frequency divider module, an image rejection mixer and a summing module. The phase-locked loop is operably coupled to generate a first oscillation from a reference oscillation. The frequency divider module is operably coupled to divide the first oscillation to produce a second oscillation. The image-rejection mixer is operably coupled to mix the second oscillation with a low intermediate oscillation to produce a mixed data signal, and the summing module is operably coupled to sum the mixed data signal with the first oscillation to produce an FSK modulated signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.