Hard disk drive interface

Abstract: An interface circuit for an IDE-type CD-ROM drive connected to a personal computer using a standard IDE interface according to a hard disk drive interface standard includes a drive selecting circuit for generating a buffer gate signal a control circuit for generating a command signal, a drive read signal, a drive write signal and a drive reset signal responsive to an IDE port address, an input/output read signal, an input/output write signal and a reset signal, for providing the received signal to the IDE interface by receiving handshake signals, a data buffer for transmitting the data in a specified direction determined according to the drive read signal, and a master-slave communication circuit for generating communication signals in response to a reset signal from the IDE interface.

Abstract: Adapter for emulating hard disk drive interface is designed for providing IDE interface by means of emulation without having to install any additional drivers for the motherboard which lacks IDE interface. The controller of the adapter is able to provide reply information on the manufacturer name, serial number of the equipment, and the device type of the hard disk device to which it is electrically connected, by responding to the BIOS query though the bus interface, thus emulating the control components of the hard disk drive as if they were appeared to be configured on the motherboard. Therefore, the number of hard disk interface types as compared to that originally supported by the motherboard is expanded.

Abstract: This invention relates to a hard disk drive interface device for facilitating the integration of industrial computer hard disk drives with a hard disk control center of an industrial computer, characterized in that a main interface circuit designed as a mother-daughter interface circuit is built at the rear end of the hard disk drive in the industrial computer to cater to changes or expansions of circuit functions by changing the daughterboard only without having to create a new layout for the motherboard every time there is a change or an expansion on the circuit functions. Further, an electric cable-retaining hook is built on the interface frame for preventing the electric cable from drooping, which will affect the quality of signal connection.