Patent ID: 6128670
Filing Date: 2000-10-03
Classification: G06F

Abstract:
An image input device comprising:a ROM connected to a card internal bus for transferring data, and that stores, as information indicating a memory card or a PC card ATA, tuple information which is information that indicates to a host device the type of said image input device when said image input device is connected to said host device;an image reading construct for reading an image of an object as digital data and outputting to an image bus for transmitting image data;an image reading means for controlling the operation of said image reading construct, and for inputting digital data read by said image reading construct from said image bus and outputs said digital data to said card internal bus as image data of a file format that can be read by said host device without requiring dedicated control programming for said image input device, wherein said image reading means deactivates a control signal during a time interval from the start of image reading by said image reading construct until the passage of a fixed time interval following output of said image data to said card internal bus, and wherein said image reading means activates said control signal for times other than said time interval;a RAM for inputting image data outputted by said imagereading means from said card internal bus and stores said image data;control means, in accordance with a request of a card interface signal which is a signal from said host device, reads tuple information stored in said ROM and image data stored in said RAM, and outputs said tuple information and said image data;first switch means has one terminal connected to a ground potential and another terminal connected to receive a first card detection signal for detecting the presence of a PC card, wherein said first switch means connects said other terminal to the ground potential when said control signal becomes active, thereby making said first card detection signal a low-level signal; andsecond switch means has one terminal connected to the ground potential and another terminal connected to receive a second card detection signal for detecting the presence of a PC card, wherein said second switch means connects said other terminal of said second switch means to the ground potential when said control signal becomes active, thereby making said second card detection signal a low level signal.