Semiconductor integrated circuit device
US6225843A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1999 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Aug 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/089
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor integrated circuit device includes a first delay circuit delaying a first clock signal, a second delay circuit delaying a second clock signal which has an inverted phase with respect to the first clock signal, a phase comparator outputting a phase error signal based on a comparison of the first clock signal and a feedback signal corresponding to an output signal from the first delay circuit, a delay control circuit generating a delay control signal based on the phase error signal, for variably controlling a delay quantity of the first and second delay circuits, and a timing adjusting circuit variably controlling a delay quantity of the second delay circuit by supplying the delay control signal to the second delay circuit at a timing synchronized to the second clock signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.