The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 1997
Filed:
Jan. 19, 1995
Applicant:
Inventor:
Chih-Hsien Chen, Hsinchu Hsien, TW;
Assignee:
United Microelectronics Corp., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369124 ; 369102 ; 395439 ; 395800 ; 395828 ; 3642362 ; 36518509 ;
Abstract
An apparatus for controlling to support hard disk and/or CD-ROM drives through the PCMCIA interface of a notebook computer system. The apparatus comprises a PCMCIA controller connected to the ISA bus of said computer system for implementing PCMCIA interface functions, and an ATA controller also connected to the ISA bus for implementing ATA interface functions. The apparatus further comprises a multiplexer circuit connected both to the PCMCIA controller and the ATA controller for the apparatus to perform either the PCMCIA or the ATA interface functions under control of a selection signal.