Multiple accumulator fractional N synthesis with series recombination
US5166642A · kind A · utility
28Cited by
4References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1982 |
| Grant date | Nov 24, 1992 |
| Priority date | — |
| Expiry date | Feb 18, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/1976
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A fractional-N type frequency synthesizer (700) for use in a radiotelephone (901). The synthesizer (700) utilizes multiple latched accumulators (401, 403, 405, 407), within an accumulator network, to perform multiple integrals of an input signal (439). The outputs of the accumulators are combined in series to form a data output signal (453). The data output signal (453) is input to a divider network (703) and used as a variable divisor of the frequency input from a variable oscillator (701) into the divider network (703).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.