US5295247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Local IDE (integrated drive electronics) bus architecture
Assignee: Micronics Computers Inc
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Filing: 1992-04-17
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Granted: 1994-03-15
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Expires: 2012-04-17
Abstract
Abstract A local bus IDE (Integrated Drive Electronics) interface bus architecture provides a direct connection to enable a fast interface between CPU and IDE drives. Also, a programmable command pulse width and I/O cycle recovery time is implemented at the IDE port to provide a finely tuned tuned access cycle time for different drives and provide optimum performance. Also, there is the capability of implementing existing hard disk interfaces with future drives.
Inventors
- 👤 Wen L. Chang
- 👤 Justin S. Wang
- 👤 Dean Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:27
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/38; G06F13/40; G06F13/4004; G06F13/4027
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
200 words
A local bus integrated drive electronics (IDE) architecture comprising: an IDE interface, said IDE interface including a data port with an address for transferring data, a first command port with addresses for transferring a first set of commands, and a second command port for receiving a second set of commands; a hard disk drive coupled to said IDE interface; control means coupled to said second command port; a CPU coupled to a local bus, said local bus for transmitting data and commands operating at a first clock rate; an industry standard architecture (ISA) bus for transmitting data and commands operating at a second clock rate; means for interfacing said ISA bus to said local bus of said CPU; means for coupling said data port of said IDE interface to said local bus of said CPU; means for coupling said first command port of said IDE interface to said ISA bus; means for transferring said data and said second set of commands between said hard disk drive and said CPU in proportion to said first clock rate; and means for transferring said first set of commands between said CPU and said hard disk drive in proportion to said second clock rate.
Claim 2
Dependent Claim
200 words
A local bus integrated drive electronics (IDE) architecture comprising: an IDE interface, said IDE interface including a data port with an address for transferring data, a first command port with addresses for transferring a first set of commands, and a second command port for receiving a second set of commands; a hard disk drive coupled to said IDE interface; control means coupled to said second command port; a CPU coupled to a local bus, said local bus for transmitting data and commands operating at a first clock rate; an industry standard architecture (ISA) bus for transmitting data and commands operating at a second clock rate; means for interfacing said ISA bus to said local bus of said CPU; means for coupling said data port of said IDE interface to said local bus of said CPU; means for coupling said first command port of said IDE interface to said ISA bus; means for transferring said data and said second set of commands between said hard disk drive and said CPU in proportion to said first clock rate; and means for transferring said first set of commands between said CPU and said hard disk drive in proportion to said second clock rate.
Claim 3
Dependent Claim
22 words
The architecture as in claim 1 wherein said second command port of said IDE interface has a software programmable command pulse width.
Claim 4
Dependent Claim
30 words
The architecture as in claim 1 including a software programmable I/O cycle recovery time to satisfy the I/O cycle recovery time requirements of various models of said hard disk drive.
Claim 5
Dependent Claim
18 words
The architecture as in claim 1 wherein said first clock rate is greater than said second clock rate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-14 | 1997-09-13 | 1998-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-14 | 2001-09-13 | 2002-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-14 | 2005-09-13 | 2006-03-15 | $7700.00 | Window Closed / Lapsed |