Image sensing apparatus and control method therefor
First Claim
1. An image sensing apparatus which can be connected to an external device and receives power from the external device, the external device having a suspend/resume function of storing, for a program under processing, a state necessary for execution of the processing in memory then turning off the power in the suspend state and re-executing the interrupted processing of the program on the basis of stored contents in response to turning on of the power, comprising:
- an image sensor adapted to convert an optical image of an object into an electrical image signal; and
a controller adapted to, when the external device is set in a suspend state during image sensing, stop operation of at least a part of said image sensor and reset a predetermined portion of said image sensing apparatus to a predetermined initial state in response to resumption of the external device.
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Accused Products
Abstract
In an image sensing apparatus which can be connected to a host computer, receives power from the host computer, and has an image sensing element for converting an optical image of an object into an electrical image signal, the host computer having a suspend/resume function of storing, for a program under processing, a state necessary for execution of the processing in memory and re-executing the interrupted processing of the program on the basis of stored contents, when the host computer is set in a suspend state during image sensing, operation of at least a part of the image sensing apparatus is stopped, and when the host computer is resumed, a predetermined portion of the image sensing apparatus is reset to a predetermined initial state.
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Citations
21 Claims
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1. An image sensing apparatus which can be connected to an external device and receives power from the external device, the external device having a suspend/resume function of storing, for a program under processing, a state necessary for execution of the processing in memory then turning off the power in the suspend state and re-executing the interrupted processing of the program on the basis of stored contents in response to turning on of the power, comprising:
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an image sensor adapted to convert an optical image of an object into an electrical image signal; and a controller adapted to, when the external device is set in a suspend state during image sensing, stop operation of at least a part of said image sensor and reset a predetermined portion of said image sensing apparatus to a predetermined initial state in response to resumption of the external device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control method for an image sensing apparatus which can be connected to an external device, receives power from the external device, and has an image sensor adapted to convert an optical image of an object into an electrical image signal, the external device having a suspend/resume function of storing, for a program under processing, a state necessary for execution of the processing in memory then turning off the power in the suspend state and re-executing the interrupted processing of the program on the basis of stored contents in response to turning on of the power, comprising:
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the stop step of, when the external device is set in a suspend state during image sensing, stopping operation of at least a part of the image; and the reset step of resetting a predetermined portion of the image sensing apparatus to a predetermined initial state in response to resumption of the external device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer program product comprising a computer usable medium having computer readable program code means embodied in said medium for controlling an image sensing apparatus which can be connected to an external device, receives power from the external device, and has an image sensor adapted to convert an optical image of an object into an electrical image signal, the external device having a suspend/resume function of storing, for a program under processing, a state necessary for execution of the processing in memory then turning off the power in the suspend state and re-executing the interrupted processing of the program on the basis of stored contents in response to turning on of the power, said product including:
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first computer readable program code means for, when the external device is set in a suspend state during image sensing, stopping operation of at least a part of the image sensor; and second computer readable program code means for resetting a predetermined portion of the image sensing apparatus to a predetermined initial state in response to resumption of the external device.
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Specification