US4555774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast response for switched data networks
Assignee: Nokia Bell Labs
•
Filing: 1982-08-19
•
Granted: 1985-11-26
•
Expires: 2002-08-19
Abstract
Abstract An interactive information retrieval system is disclosed in which a large number of user terminals interact bilaterally with a centralized computer controlled data base by using a communications controller. In order to speed up the response time of the system, long messages from the controller to the terminal are broken into two segments, one segment just sufficiently long to engage the attention of the user while the balance of the message is being transmitted and verified. The balance of the long message is contained in a second segment. This process and apparatus may be implemented by hard-wired circuitry or by a programmed computer.
Inventors
- 👤 Lawrence Bernstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:08
CPC Classifications
G; G06; G06F; G06F16/00; G06F16/90; G06F16/903; G06F16/9038; H; H04; H04J; H04J3/00; H04J3/24; H04J3/242; G06F16/10; G06F16/17; G06F16/178; G06F16/1794; G06F3/00; G06F3/01; G06F3/048; G06F3/0487; G06F3/0489; G06F3/04895
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
129 words
An interactive mechanized request-response information handling system comprising a data storage mechanism; a data processor for reading, writing, and editing data in said storage mechanism; a plurality of remote user terminals for providing information requests to said storage mechanism and for displaying responses to said requests as a plurality of successive display increments wherein each of said display increments includes only so much information as can be displayed at one time at any one of said terminals; and a communications controller for formatting information responses from said data storage mechanism into two message blocks, one block of fixed length equal to the contents of a single one of said display increments to provide fast response to an inquiry, and the other block comprising the balance of the information response.
Claim 2
Dependent Claim
129 words
An interactive mechanized request-response information handling system comprising a data storage mechanism; a data processor for reading, writing, and editing data in said storage mechanism; a plurality of remote user terminals for providing information requests to said storage mechanism and for displaying responses to said requests as a plurality of successive display increments wherein each of said display increments includes only so much information as can be displayed at one time at any one of said terminals; and a communications controller for formatting information responses from said data storage mechanism into two message blocks, one block of fixed length equal to the contents of a single one of said display increments to provide fast response to an inquiry, and the other block comprising the balance of the information response.
Claim 3
Dependent Claim
30 words
The information handling system according to claim 1 including means for delimiting said blocks by delimiting code sequences; and means for calculating error detection check characters for said message blocks.
Claim 4
Dependent Claim
25 words
The information handling system according to claim 2 further including means for displaying said fixed length block to a user before checking said check characters.
Claim 5
Dependent Claim
25 words
The information handling system according to claim 1 wherein said fixed length comprises sufficient characters to fill a screen of a cathode ray tube terminal.
Claim 6
Independent Claim
105 words
The method of providing fast responses to requests for information in a centralized information retrieval system comprising the steps of (1) generating response messages in response to each of said requests; (2) dividing said response messages into two message segments, the first segment being of fixed length including only so much information as can be displayed at one time at a terminal and the second segment comprising the balance of said response message; (3) transmitting and immediately displaying or printing said first segment prior to the complete reception of said second segment; and (4) displaying or printing said second segment when available and if desired.
Claim 7
Independent Claim
105 words
The method of providing fast responses to requests for information in a centralized information retrieval system comprising the steps of (1) generating response messages in response to each of said requests; (2) dividing said response messages into two message segments, the first segment being of fixed length including only so much information as can be displayed at one time at a terminal and the second segment comprising the balance of said response message; (3) transmitting and immediately displaying or printing said first segment prior to the complete reception of said second segment; and (4) displaying or printing said second segment when available and if desired.
Claim 8
Dependent Claim
35 words
The fast response method according to claim 5 including the step of (5) selecting said fixed length to be sufficiently long to be read in the length of time required to transmit said second segment.
Claim 9
Dependent Claim
33 words
The fast response method according to claim 5 including the step of (5) selecting said fixed length to be the amount of data required to fill one screen of a cathode ray tube.
Claim 10
Dependent Claim
35 words
The fast response method according to claim 5 including the steps of (5) adding submessage code delimiters to said message segments; and (6) adding error detection blocks to at least one of said message segments.
Claim 11
Dependent Claim
25 words
The fast response method according to claim 8 further including the step of (7) displaying or printing said first segment checking said error detection block.
References Cited (Backward Citations)
US31182A
Cited
US3566090A
Cited
US3899772A
Cited
US4064561A
Cited
US4034339A
Cited
USRE31182E
Cited
US4121283A
Cited
US4319336A
Cited
US4445213A
Cited
US4375079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-25 | 1989-05-27 | 1989-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-25 | 1993-05-27 | 1993-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-25 | 1997-05-27 | 1997-11-26 | $7700.00 | Window Closed / Lapsed |