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Patent US4583124A successfully refreshed from Google Patents.
US4583124A
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US
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Facsimile communication control system
Assignee: Ricoh Co Ltd
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Filing: 1984-06-12
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Granted: 1986-04-15
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Expires: 2004-06-12
Abstract
Abstract A facsimile communication control system for setting up a modem rate appropriate for a remote receiving station within a short period of time. A modem rate used for communication last time is stored in a nonvolatile memory so that a modem training at the time of the next communication begins with the stored modem rate. Where the transmit station is to hold a communication with a new remote station for the first time, the modem training begins with the highest modem rate which is shared by the two stations as heretofore practiced.
Inventors
- 👤 Makoto Tsuji
- 👤 Yuichi Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:11
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/333; H04N1/33369; H04L; H04L5/00; H04L5/14; H04L5/1438; H04L5/1446; H04M; H04M11/00; H04M11/06; H04N1/3333; H04N2201/00; H04N2201/32; H04N2201/333; H04N2201/33307; H04N2201/33342; H04N2201/3335
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A facsimile communication control system having a modem and setting up a modem rate which matches with a remote receive station, comprising: (a) store means having an area for filing a number dialed to hold a communication with the remote station and an area for filing a modem rate set up at the time of said communication; and (b) control means for controlling said modem and said store means such that when a communication is to be held next time with the remote station, the filed modem rate is read out and, then, a modem training is initiated with said modem rate.
Claim 2
Dependent Claim
102 words
A facsimile communication control system having a modem and setting up a modem rate which matches with a remote receive station, comprising: (a) store means having an area for filing a number dialed to hold a communication with the remote station and an area for filing a modem rate set up at the time of said communication; and (b) control means for controlling said modem and said store means such that when a communication is to be held next time with the remote station, the filed modem rate is read out and, then, a modem training is initiated with said modem rate.
Claim 3
Dependent Claim
66 words
A facsimile communication control system as claimed in claim 1, in which the store means further comprises an area for filing the number of successes of communication which occur at said modem rate, the control means being constructed to control the modem and the store means such that the filed modem rate is altered when the filed number of successes of communication reaches a predetermined number.
Claim 4
Dependent Claim
70 words
A facsimile communication control system as claimed in claim 1, in which the store means further comprises an area for filing the number of successes of communication which occur at said modem rate, the control means being constructed to control the modem and the store means such that the filed modem rate is changed to a highest rate when the filed number of successes of communication reaches a predetermined number.
Claim 5
Dependent Claim
66 words
A facsimile communication control system as claimed in claim 1, in which the store means further comprises an area for filing the frequency of success of communication which occurs at said modem rate, the control means being constructed to control the modem and the store means such that the filed modem rate is shifted up one step every time a communication with the remote station succeeds.
Claim 6
Dependent Claim
20 words
A facsimile communication control system as claimed in claim 1, in which the store means comprises a rewritable nonvolatile memory.
Claim 7
Dependent Claim
19 words
A facsimile communication control system as claimed in claim 5, in which the nonvolatile memory comprises an EEP ROM.
Claim 8
Dependent Claim
20 words
A facsimile communication control system as claimed in claim 5, in which the nonvolatile memory comprises a battery backed-up RAM.
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) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |