1. Field of the Invention
The present invention relates to an information processing apparatus, a method for managing the status thereof and a memory medium, and more particularly to an information processing apparatus consisting of a host equipment having a power saving state and a peripheral equipment, a method for managing the status thereof and a memory medium.
2. Related Background Art
In a peripheral equipment provided with a function of shifting to a power saving state (for example standby function), there has conventionally adopted a process of shifting to a power saving status if an activating event (such as the depression of a switch or the data transfer from a host equipment) for such peripheral equipment does not occur within a time determined in advance in the peripheral equipment itself, and returning to an active status if such activating event occurs.
Also in a peripheral equipment provided with a function of shifting to a power saving status (such as stand-by function) and connected to a host equipment provided with a function of shifting to a power saving status (such as screen saver function for the display), there has been adopted a process of shifting to the power saving status when a time determined in advance in the peripheral equipment itself expires and returning to an active status in case a returning event to the active status (for example the depression of a switch or the data transfer from the host equipment) occurs in the peripheral equipment.
However, such conventional processes have been associated with drawbacks that a timer function has to be provided in the peripheral equipment and that there may result an unsynchronized state in which the host equipment is in the power saving status while the peripheral equipment is in the active status or the host equipment is in the active status while the peripheral equipment is in the power saving status, if the time for shifting to the power saving status is different between the host equipment and the peripheral equipment.