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USH1413H
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Escape methods for modem communications
Assignee: Multi Tech Systems Inc
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Filing: 1993-01-08
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Granted: 1995-02-07
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Expires: 2013-01-08
Abstract
Abstract Two Escape Methods for modem control are described, both of which are a form of TIES (Time Independent Escape Sequence). Since TIES is more descriptive of the methodology being used, as opposed to a specific protocol or standard, the present specification describes the protocol used in +++AT<CR> escape sequence (in-band escape) and <BREAK>AT<CR> escape sequence (out-of-band escape).
Inventors
- 👤 Timothy D. Gunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:23
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A method of controlling a modem connected to a personal computer, comprising the steps of: sending a <BREAK> signal to a modem; buffering the <BREAK> signal in the modem; starting a timer to wait for a <CR>; sending "ATS0=1<CR>" to the modem; buffering "ATS0=1<CR>" at the modem; identifying "ATS0=1<CR>" as a valid command at the modem; causing the modem to escape to COMMAND mode; executing the command "ATS0=1<CR>"; and returning the modem to ON-LINE mode.
Claim 2
Independent Claim
75 words
A method of controlling a modem connected to a personal computer, comprising the steps of: sending a <BREAK> signal to a modem; buffering the <BREAK> signal in the modem; starting a timer to wait for a <CR>; sending "ATS0=1<CR>" to the modem; buffering "ATS0=1<CR>" at the modem; identifying "ATS0=1<CR>" as a valid command at the modem; causing the modem to escape to COMMAND mode; executing the command "ATS0=1<CR>"; and returning the modem to ON-LINE mode.
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) | 1998-02-06 | 1998-08-08 | 1999-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-06 | 2002-08-08 | 2003-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-06 | 2006-08-08 | 2007-02-07 | $7700.00 | Window Closed / Lapsed |