Arbitrary waveform synthesizer using a free-running ring oscillator
US6377094B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Jun 29, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/16
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The waveform generator includes a free-running ring oscillator, an algebra module, a switching module and an output module. The free-running ring oscillator includes a plurality of delay elements connected in a loop and a plurality of taps disposed between the delay elements, with each tap providing a uniquely phased, oscillating transition signal. The algebra module generates an output signal indicating a first rising edge of the arbitrary waveform in response to an input signal. The switching module includes a switch input port in electrical communication with the algebra data output port, a plurality of switch tap input ports in electrical communication with the free-running ring oscillator taps and switch output port. At the switch output port, the switch module provides a first transition signal selected from one of the plurality of free-running ring oscillator taps in response to the signal indicative of a first rising edge received at the switch input port. The output module has a transition signal input port in electrical communication with the switch output port, a window input port in electrical communication with the algebra data output port and a waveform output port in…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.