EP0067302A2
Expired / Lapsed
EP
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Display updating device in a data communication system
Assignee: International Business Machines Corp
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Filing: 1982-05-06
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Granted: —
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Expires: 2002-05-06
Abstract
Abstract A data communications system for asynchronous communication having at least two data transmit/receive terminals (50) wherein the display (42) is periodically updated with new send or receive data. In the receive mode the data is accumulated in a receive buffer (72) for a predetermined time interval and then transferred into a text storage buffer (80) which then activates a display access method (86) to process the stored data and update the display. The display access method (86) then goes into an "idle" mode and waits for the next transfer of data which does not occur until the predetermined time interval has expired. In the transmit mode the send data is transmitted without a delay but the display is updated after the predetermined time interval has expired.
Inventors
- 👤 Dennis Gene Busch
- 👤 Robert Joseph Grafe
- 👤 Gary Eugene Leikam
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 18:33
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/14; G06F3/153; G06F13/00; G06F13/38; G06F13/42; G06F13/4204; G06F13/4221; G06F13/4226
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
Display updating device in a data communications system having at least one data transmit terminal and one data receive terminal said data receive terminal (10) being characterized in that it comprises : a first storage means (24) for storing received data; a timer (30) for generating a fixed time interval; a transferral means (26) for removing said received data from said first storage means at said fixed time interval; a second storage means (38) for receiving and storing said received data from said transferral means; and a display means (42) for displaying on a display terminal all data stored in said second storage means.
Claim 2
Dependent Claim
104 words
Display updating device in a data communications system having at least one data transmit terminal and one data receive terminal said data receive terminal (10) being characterized in that it comprises : a first storage means (24) for storing received data; a timer (30) for generating a fixed time interval; a transferral means (26) for removing said received data from said first storage means at said fixed time interval; a second storage means (38) for receiving and storing said received data from said transferral means; and a display means (42) for displaying on a display terminal all data stored in said second storage means.
Claim 3
Dependent Claim
153 words
Display updating device in a data communications system having at least two data transmit/receive terminals, characterized in that each of said transmit/ receive terminals comprises : a data input means (54) for entering sent data; a first storage means (72) for storing received data; a timer (68) for generating fixed time intervals; a transferral means (76) for removing said received data from said first storage means at said fixed time intervals and for transferring said sent data from said data input means; a second storage means (94) for receiving and storing said sent data, transferred from said transferral means; a third storage means (80) for receiving and storing said sent and received data transferred from said transferral means; a display means (42) for displaying on a display terminal all data stored in said third storage means; and a transmission means (70, 74) for transmitting said sent data stored in said second storage means.
Claim 4
Dependent Claim
153 words
Display updating device in a data communications system having at least two data transmit/receive terminals, characterized in that each of said transmit/ receive terminals comprises : a data input means (54) for entering sent data; a first storage means (72) for storing received data; a timer (68) for generating fixed time intervals; a transferral means (76) for removing said received data from said first storage means at said fixed time intervals and for transferring said sent data from said data input means; a second storage means (94) for receiving and storing said sent data, transferred from said transferral means; a third storage means (80) for receiving and storing said sent and received data transferred from said transferral means; a display means (42) for displaying on a display terminal all data stored in said third storage means; and a transmission means (70, 74) for transmitting said sent data stored in said second storage means.
Claim 5
Dependent Claim
20 words
Device as defined in claim 1 or 2 characterized in that said first storage means comprises a receive buffer (72).
Claim 6
Dependent Claim
21 words
Device as defined in claim 1, 2 or 3 characterized in that said first storage means comprises a random access memory.
Claim 7
Dependent Claim
22 words
Device as defined in claim 1, 2, 3 or 4 characterized in that said second storage means comprises a send buffer (94).
Claim 8
Dependent Claim
23 words
Device as defined in claim 1, 2, 3, 4 or 5 characterized in that said second storage means comprises a random access memory.,
Claim 9
Dependent Claim
19 words
Device as defined in claim 2 characterized in that said third storage means comprises a text storage buffer (80).
Claim 10
Dependent Claim
20 words
Device as defined in claim 2 or 7 characterized in that said third storage means comprises a random access memory.
Claim 11
Dependent Claim
38 words
Device as defined in claim 2, 7 or 8 characterized in that said display means is activated in response to said fixed time interval and after said received data is transferred and stored in said third storage means.
Claim 12
Dependent Claim
21 words
Device as defined in claim 2, 7, 8 or 9 characterized in that said data input means (54) comprises a keyboard.
References Cited (Backward Citations)
No citation records indexed.
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