Information processing apparatus and phase control method
US7800421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2007 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Sep 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0688
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus includes plural combinations of a clock supplier and a clock supply destination supplied with a clock from the clock supplier. The clock supply destination includes a return route through which the clock supply destination returns a clock to a corresponding clock supplier. The clock supplier includes a variable delay unit that adds a delay to the clock to be supplied to a corresponding clock supply destination; a comparison-reference-clock supply unit that supplies a comparison reference clock having the same phase as that of a comparison reference clock supplied from other clock supplier; a phase comparator that compares the phase of a return clock returned from a corresponding clock supply destination with that of the comparison reference clock; and a phase-difference control unit that controls the delay, so that the phases of the return clock and the comparison reference clock coincide with each other, based on the comparison result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.