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US 7,681,067 B2Granted
Bus system
AssigneeCanon Kabushiki Kaisha
InventorKoji Moriya
Life of this patent
Estimating the term…
Abstract
It is so arranged that an appropriate deadline is assured with little consumption of power. A register (24) for remaining transfer time senses time that remains up to a limit by which data is to be transferred. A register (25) for remaining amount of data transfer senses the remaining amount of data that is to be transferred. The clock of the processing module is changed over dynamically based upon the remaining time sensed by the remaining transfer time register (24) and the remaining amount of transfer data sensed by the remaining transfer amount register (25).
Claims8
A bus system comprising:
- a transfer unit adapted to transfer data to a bus slave via a bus;
- a remaining-time measuring unit adapted to measure time that remains up to a limit by which the data is to be transferred;
- a remaining-data-amount measuring unit adapted to measure amount of data that remains to be transferred;
- and
- a clock changeover unit adapted to change over the processing clock of a processing module, which processes the data, based upon the remaining time measured by said remaining-time measuring unit and the remaining amount of data measured by said remaining-data-amount measuring unit.
2 more elements
Dependencies are inferred from the claim text.