US5276458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system
Assignee: International Business Machines Corp
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Filing: 1993-05-13
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Granted: 1994-01-04
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Expires: 2013-05-13
Abstract
Abstract A display system is described, comprising a display device (88) for generating a visual output in response to a plurality of data signals defining the data to be displayed, a display adapter circuit (92) for generating the data signals in a form specified by control data identifying the display device (88), an output port (94) for connecting the data signals from the display adapter circuit to the display device (88) and for connecting the control data from the display device (88) to the display adapter circuit (92), characterized in that the display system further comprises a non-volatile memory (9) located in the display device (88) for storing the control data in the form of a plurality of control codes, and communication logic (95) for communicating a control code between the memory and the output port (94) in response to a command signal (21) generated by the display adapter circuit (92). The communication logic comprises a serial data link (3) for communicating the control code between the display device and the output port, device logic (97) located in the display device for communicating the control code between the memory and the serial data link, and adapter logic (96) located in the display adapter circuit for communicating the control code between the serial data link and the display adapter circuit.
Inventors
- 👤 David Sawdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:35
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/06; G09G1/14; G09G1/16; G09G5/00; G09G5/003; G09G5/006; G09G2370/00; G09G2370/04; G09G2370/042
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
163 words
A display system comprising: a display device (88) for generating a visual output in response to a plurality of data signals defining the data to be displayed; a display adapter circuit (92) for generating the data signals in a form specified by control data identifying the display device (88); an output port (94) for connecting the data signals from the display adapter circuit (92) to the display device (88) and for connecting the control data from the display device (88) to the display adapter circuit (92); a non-volatile memory (9) located in the display device (88) for storing the control data in the form of a plurality of control codes; an adapter logic 96 located in the display adapter circuit (92) for initiating commands for reading and writing data to the non-volatile memory; and communication logic (95) for communicating a control code between the memory and the output port (94) in response to a command signal (21) generated by the adapter logic 96.
Claim 2
Dependent Claim
163 words
A display system comprising: a display device (88) for generating a visual output in response to a plurality of data signals defining the data to be displayed; a display adapter circuit (92) for generating the data signals in a form specified by control data identifying the display device (88); an output port (94) for connecting the data signals from the display adapter circuit (92) to the display device (88) and for connecting the control data from the display device (88) to the display adapter circuit (92); a non-volatile memory (9) located in the display device (88) for storing the control data in the form of a plurality of control codes; an adapter logic 96 located in the display adapter circuit (92) for initiating commands for reading and writing data to the non-volatile memory; and communication logic (95) for communicating a control code between the memory and the output port (94) in response to a command signal (21) generated by the adapter logic 96.
Claim 3
Dependent Claim
77 words
A display system as claimed in claim 1 wherein the communication logic comprises a serial data link (3) for communicating the control code between the display device and the output port, device logic (97) located in the display device for communicating the control code between the memory and the serial data link, and adapter logic (96) located in the display adapter circuit for communicating the control code between the serial data link and the display adapter circuit.
Claim 4
Dependent Claim
94 words
A display system as claimed in claim 2 wherein the adapter logic comprises a first serialiser for translating a command signal (21) into a command bit stream (22), a first line driver connected to the output port for communicating the command bit stream (22) to the device logic along the serial link, a first receiver connected to the output port for receiving a control bit stream from the device logic along the serial link, and a first deserialiser for translating the control bit stream into a control code corresponding to the command signal (21).
Claim 5
Dependent Claim
24 words
A display system as claimed in claim 3 wherein the first serialiser and the first deserialiser are combined in a single integrated circuit module.
Claim 6
Dependent Claim
25 words
A display system as claimed in claim 3 wherein the first line driver and the first receiver are incorporated in a single integrated circuit module.
Claim 7
Dependent Claim
42 words
A display system as claimed in claim 2 and further comprising means for configuring the display device to operate in different display modes in response to mode control signals communicated from the adapter logic to the device logic along the serial link.
Claim 8
Dependent Claim
42 words
A display device as claimed in claim 2 and further comprising means for adjusting operating parameters of drive circuitry of the display device in response to parameter control signals communicated from the adapter logic to the device logic along the serial link.
Claim 9
Dependent Claim
61 words
A display device as claimed in claim 7 and further comprising means for obtaining digital samples of signals at nodes of the drive circuitry and for communicating the samples from the device logic to the adapter logic along the serial link in response to a data request signal communicated from the adapter logic to the device logic along the serial link.
Claim 10
Dependent Claim
27 words
A display system as claimed in claim 1 wherein the control codes stored in the memory include digitally encoded data signal timing parameters for the display device.
Claim 11
Dependent Claim
97 words
A display system as claimed in claim 2 wherein the device logic comprises a second receiver for receiving the command bit stream (22) from the output port along the serial link, a second deserialiser for translating the command bit stream (22) into the command signal (21), a command decoder for translating the command signal (21) into a memory address for accessing the stored control code, a second serialiser for translating the control code into the control bit stream, a second line driver connected for communicating the control bit stream to the output port along the serial link.
Claim 12
Dependent Claim
24 words
A display system as claimed in claim 10 wherein the second serialiser and the second deserialiser are combined in a single integrated circuit module.
Claim 13
Dependent Claim
25 words
A display system as claimed in claim 10 wherein the second line driver and the second receiver are incorporated in a single integrated circuit module.
Claim 14
Dependent Claim
102 words
A display system comprising: a display device for generating visual displays in response to data and control signals defining the data to be displayed; a memory means located in said display device for storing characteristic information representative of different display modes in which said display device can be operated; and a device logic means responsive to commands issued from an adapter logic to extract selected characteristic information from the memory means and forward the characteristic information to said adapter logic whereby the adapter logic uses the characteristic information to generate control signals and data signals compatible with one of the display modes.
Claim 15
Dependent Claim
102 words
A display system comprising: a display device for generating visual displays in response to data and control signals defining the data to be displayed; a memory means located in said display device for storing characteristic information representative of different display modes in which said display device can be operated; and a device logic means responsive to commands issued from an adapter logic to extract selected characteristic information from the memory means and forward the characteristic information to said adapter logic whereby the adapter logic uses the characteristic information to generate control signals and data signals compatible with one of the display modes.
Claim 16
Dependent Claim
21 words
The display system of claim 13 wherein the characteristic information is stored as a plurality of identification codes representing timing parameters.
Claim 17
Dependent Claim
20 words
The display system of claim 13 wherein the timing parameters include sync pulse widths, active video period and blanking intervals.
Claim 18
Dependent Claim
31 words
The display system of claim 14 wherein the identification code includes a coded transfer parameter for indicating the maximum rate at which the data can be forwarded to the display device.
Claim 19
Dependent Claim
14 words
The display system of claim 13 wherein the memory means includes a non-volatile memory.
Claim 20
Dependent Claim
19 words
The display system of claim 17 wherein the non-volatile memory (NVM) includes a program NVM and a personality NVM.
Claim 21
Dependent Claim
26 words
The display system of claim 17 further including a display I/O means coupled to the program NVM and a drive circuitry coupled to the display I/O.
Claim 22
Dependent Claim
125 words
In a computer system having a display device for displaying visual information, a display adapter, for processing the information to be displayed on said display device, comprising: a device driver for generating a command code in response to program instruction; first means coupled to the device driver and for translating the command code into command bit streams; second means coupled to the first means and for transmitting the command bit stream to said display device; third means for receiving a response bit stream transmitted from the display device as a result of receiving the command bit stream; and fourth means for decoding the response bit stream and using its contents to generate data and control signals compatible with a display mode of said display device.
Claim 23
Dependent Claim
125 words
In a computer system having a display device for displaying visual information, a display adapter, for processing the information to be displayed on said display device, comprising: a device driver for generating a command code in response to program instruction; first means coupled to the device driver and for translating the command code into command bit streams; second means coupled to the first means and for transmitting the command bit stream to said display device; third means for receiving a response bit stream transmitted from the display device as a result of receiving the command bit stream; and fourth means for decoding the response bit stream and using its contents to generate data and control signals compatible with a display mode of said display device.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-03 | 1997-07-05 | 1998-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-03 | 2001-07-05 | 2002-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-03 | 2005-07-05 | 2006-01-04 | $7700.00 | Window Closed / Lapsed |