Boots – shoes – and leggings
Patent
1991-07-23
1994-03-01
Harrell, Robert B.
Boots, shoes, and leggings
3642362, 36492781, 364DIG1, G06F 1200
Patent
active
052915840
ABSTRACT:
A magnetic media hard disk is emulated in a solid state hard disk having a disk controller, a data buffer, a microcontroller, and a disk emulator section. The disk emulator section includes a disk emulator interface and a memory array. The architecture of the memory array includes a number of memory banks which typically correspond to respective sectors of the emulated hard disk, but could correspond to respective groups of sectors of the emulated hard disk. Each of the memory banks has its own serial data line and its own serial clock line, and include a number of serial memory devices that connect to the bank serial data line and bank clock line with respective serial data and clock lines. Each of the serial memory devices also has a static address corresponding to a head address of the emulated hard disk. At any given time, one of the memory banks is selected by activation of its clock line based on the sector addressed, and one of the serial memory devices in the bank responds based on a comparison of its static address with head address data communicated on the serial data line. Other features described include serial memory device start sequences and bad bit replacement.
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patent: 5033027 (1991-07-01), Amin
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Article entitled "Optimal Solid State Disk Architecture for Portable Computers" by Dan Auclair, Silicon Valley PC Design Conference (SVPC), Jul. 9-10, 1991, pp. 811-815.
Article entitled "A 16 KBIT Smart 5 V-Only EEPROM with Redundancy", by Lucero et al., IEEE Journal of Solid State Circuits,vol. SC-18, No. 5, Oct. 1983, pp. 539-544.
National Semiconductor data sheet entitled "NMC9345 1024-Bit Serial Electrically Erasable Programmable Memory", pp. 2-41 through 2-47.
Xicor data sheet entitled "X24C16 Electrically Erasable PROM", pp. 2-45 through 2-52.
Challa Nagesh
Gannage Michel E.
Harrell Robert B.
Nexcom Technology, Inc.
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