Registers – Coded record sensors – Holding devices
Patent
1995-10-03
1998-10-06
Hajec, Donald T.
Registers
Coded record sensors
Holding devices
235492, 235487, 395892, 439946, G06K 700
Patent
active
058180290
ABSTRACT:
A computer peripheral device for reading and writing cards conforming to the Personal Computer Memory Card International Association (PCMCIA) standard using a computer system equipped with a Small Computer Systems Interface (SCSI) bus. The device includes an Application Specific Integrated Circuit (ASIC), a gate array, a microprocessor unit, and a PC card interface unit. The PC card interface unit consists of a pair of latches, a bus transceiver, and a tri-state buffer. Data is transferred at high speed using a commercially available integrated circuit in a configuration in which the card is connected to the integrated circuit as if it were a random access memory buffer in a hard disk drive. Provision is made for automatically identifying the type of card inserted. Card slots are provided for two cards: one Type II card and one Type III card. Additional physical support is given to the card connector guides to prevent reverse card insertion.
REFERENCES:
patent: 5391083 (1995-02-01), Roebuck et al.
patent: 5472351 (1995-12-01), Greco et al.
patent: 5540601 (1996-07-01), Botchek
patent: 5588850 (1996-12-01), Pan et al.
Hajec Donald T.
Intermart Systems
Lee Michael G.
LandOfFree
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