Patent US5293497A successfully refreshed from Google Patents.
US5293497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable for transmitting eight-bit parallel data
Assignee: Microsoft Technology Licensing LLC
•
Filing: 1993-04-15
•
Granted: 1994-03-08
•
Expires: 2013-04-15
Abstract
Abstract Disclosed is a system of transmitting data from a sending computer (10) to a receiving computer (30) in an 8-bit parallel format. Each computer includes a parallel communications port (14 and 34) having a data output register (24 and 44), a status register (26 and 46) and a control register (28 and 48). The method includes the steps of connecting the computers, configuring the receiving computer and writing the data to be transmitted at the sending computer. The method further includes the step of determining whether the receiving computer has the ability to receive 8-bit parallel communication. A cable for providing a communication link between the two computers is also disclosed.
Inventors
- 👤 Gordon G. Free
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:37
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/38; G06F13/382; G06F13/385; G06F15/00; G06F15/16; G06F15/163; G06F15/17; G06F2213/00; G06F2213/0004
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
189 words
A cable for use in transmitting parallel data between a first computer and a second computer, wherein the first computer and the second computer are of the type that include a parallel communications port having a data output register, a status register and a control register, wherein the cable comprises: a first connector that is connectable to the parallel communications port of the first computer, a second connector that is connectable to the parallel communications port of the second computer, a plurality of conductive leads disposed between the first and second connectors, wherein the plurality of conductive leads include: a first set of leads that couple the data output register of the first computer to the status register of the second computer, wherein the first set of leads carry a first portion of the parallel data from the first computer to the second computer; and a second set of leads that couple that control register of the first computer to the control register of the second computer, wherein the second set of leads carry a second portion of the parallel data from the first computer to the second computer.
Claim 2
Dependent Claim
189 words
A cable for use in transmitting parallel data between a first computer and a second computer, wherein the first computer and the second computer are of the type that include a parallel communications port having a data output register, a status register and a control register, wherein the cable comprises: a first connector that is connectable to the parallel communications port of the first computer, a second connector that is connectable to the parallel communications port of the second computer, a plurality of conductive leads disposed between the first and second connectors, wherein the plurality of conductive leads include: a first set of leads that couple the data output register of the first computer to the status register of the second computer, wherein the first set of leads carry a first portion of the parallel data from the first computer to the second computer; and a second set of leads that couple that control register of the first computer to the control register of the second computer, wherein the second set of leads carry a second portion of the parallel data from the first computer to the second computer.
Claim 3
Dependent Claim
34 words
The cable of claim 1, wherein the plurality of conductive leads further include an acknowledge line that couples the data output register of the first computer to the status register of the second computer.
Claim 4
Dependent Claim
63 words
The cable of claim 1, wherein the parallel data transmitted between the first and second computers is transmitted in 8-bit bytes and wherein the first portion of parallel data carried on the first set of leads is a 4-bit nibble of data and wherein the second portion of parallel data carried on the second set of leads is a 4-bit nibble of data.
Claim 5
Dependent Claim
83 words
The cable of claim 1, wherein the second set of leads are bidirectional such that data are transmitted from the control register of the second computer to the control register of the first computer and wherein the plurality of conductive leads further comprises: a third set of leads that couple the data output register on the second computer to the status register of the first computer, wherein the third set of leads carry parallel data from the second computer to the first computer.
References Cited (Backward Citations)
US3988716A
Cited
US4400778A
Cited
EP0060932A2
Cited
US4495572A
Cited
US4833605A
Cited
US4641276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-07 | 1997-09-06 | 1998-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-07 | 2001-09-06 | 2002-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-07 | 2005-09-06 | 2006-03-08 | $7700.00 | Window Closed / Lapsed |