US5600712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enabling technique for quickly establishing high speed PSTN connections in telecommuting applications
Assignee: TELECOMM INNOVATIONS LLC
•
Filing: 1996-04-05
•
Granted: 1997-02-04
•
Expires: 2016-04-05
Abstract
Abstract A data communications equipment, e.g., a modem, uses a telephone number of a remote endpoint to retrieve an associated set of stored configuration parameters. These stored configuration parameters allow the modem to quickly initialize itself and thereby significantly reduce the training interval with the remote modem. In addition, the use of the telephone number of the remote endpoint allows quick identification of modulation format, e.g., that a fax call is being established.
Inventors
- 👤 Bruce L. Hanson
- 👤 Kurt E. Holmquist
- 👤 Lee B. Strahs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:59
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
90 words
A method for use in data communications equipment apparatus for communicating with a far-end data endpoint through a switched telephone network that provides a communications channel comprising a predominately switched digital portion and a fixed analog portion, the method comprising the steps of: retrieving a set of stored tap values associated with a telephone number representative of the far-end data endpoint; and initializing an equalizer of the data communications equipment apparatus with the retrieved set of stored tap values to compensate for the fixed analog portion of the communications channel.
Claim 2
Independent Claim
90 words
A method for use in data communications equipment apparatus for communicating with a far-end data endpoint through a switched telephone network that provides a communications channel comprising a predominately switched digital portion and a fixed analog portion, the method comprising the steps of: retrieving a set of stored tap values associated with a telephone number representative of the far-end data endpoint; and initializing an equalizer of the data communications equipment apparatus with the retrieved set of stored tap values to compensate for the fixed analog portion of the communications channel.
Claim 3
Dependent Claim
25 words
The method of claim 1 further including the step of recovering the telephone number from a calling party identification signal from the switched telephone network.
Claim 4
Independent Claim
97 words
A method for use in data communications equipment apparatus, the method comprising the steps of: performing a fast initialization with an opposite data endpoint by using a set of stored parameters associated with a telephone number representative of the opposite data endpoint; determining an error rate on a signal received from the opposite data endpoint; and if the detected error rate is greater than a predefined value, performing a standard initialization with the opposite data endpoint, where the standard initialization includes a training period to determine a new set of stored parameters associated with the telephone number.
Claim 5
Independent Claim
97 words
A method for use in data communications equipment apparatus, the method comprising the steps of: performing a fast initialization with an opposite data endpoint by using a set of stored parameters associated with a telephone number representative of the opposite data endpoint; determining an error rate on a signal received from the opposite data endpoint; and if the detected error rate is greater than a predefined value, performing a standard initialization with the opposite data endpoint, where the standard initialization includes a training period to determine a new set of stored parameters associated with the telephone number.
Claim 6
Dependent Claim
20 words
The method of claim 3 including the step of recovering the telephone number from a received calling party identification signal.
Claim 7
Independent Claim
101 words
A method for use in data communications equipment apparatus, the method comprising the steps of: performing a fast initialization with an opposite data endpoint by using a set of stored equalizer tap values associated with a telephone number representative of the opposite data endpoint; determining an error rate on a signal received from the opposite data endpoint; and if the detected error rate is greater than a predefined value, performing a standard initialization with the opposite data endpoint, where the standard initialization includes a training period to determine a new set of stored equalizer tap values associated with the telephone number.
Claim 8
Independent Claim
101 words
A method for use in data communications equipment apparatus, the method comprising the steps of: performing a fast initialization with an opposite data endpoint by using a set of stored equalizer tap values associated with a telephone number representative of the opposite data endpoint; determining an error rate on a signal received from the opposite data endpoint; and if the detected error rate is greater than a predefined value, performing a standard initialization with the opposite data endpoint, where the standard initialization includes a training period to determine a new set of stored equalizer tap values associated with the telephone number.
Claim 9
Dependent Claim
20 words
The method of claim 5 including the step of recovering the telephone number from a received calling party identification signal.
Claim 10
Dependent Claim
120 words
A data communications equipment apparatus for use in communicating with a far-end data endpoint through a switched telephone network that provides a communications channel comprising a predominately switched digital portion and a fixed analog portion, the data communications equipment apparatus comprising: means for receiving a calling party identification signal from the communications channel, the calling party identification signal identifying the location of the far-end data endpoint in the switched telephone network; and means responsive to the received calling party identification signal for identifying an associated set of stored tap values and for initializing an equalizer of the data communications equipment apparatus with the identified set of stored tap values to compensate for the fixed analog portion of the communications channel.
Claim 11
Dependent Claim
120 words
A data communications equipment apparatus for use in communicating with a far-end data endpoint through a switched telephone network that provides a communications channel comprising a predominately switched digital portion and a fixed analog portion, the data communications equipment apparatus comprising: means for receiving a calling party identification signal from the communications channel, the calling party identification signal identifying the location of the far-end data endpoint in the switched telephone network; and means responsive to the received calling party identification signal for identifying an associated set of stored tap values and for initializing an equalizer of the data communications equipment apparatus with the identified set of stored tap values to compensate for the fixed analog portion of the communications channel.
Claim 12
Dependent Claim
108 words
A data communications equipment apparatus for use in communicating with a far-end data endpoint through a switched telephone network that provides a communications channel comprising a predominately switched digital portion and a fixed analog portion, the data communications equipment apparatus comprising: means for providing a telephone number to the switched telephone network for establishing a telephone call to the far-end data endpoint; and means responsive to the telephone number for identifying an associated set of stored tap values and for initializing an equalizer of the data communications equipment apparatus with the identified set of stored tap values to compensate for the fixed analog portion of the communications channel.
Claim 13
Dependent Claim
108 words
A data communications equipment apparatus for use in communicating with a far-end data endpoint through a switched telephone network that provides a communications channel comprising a predominately switched digital portion and a fixed analog portion, the data communications equipment apparatus comprising: means for providing a telephone number to the switched telephone network for establishing a telephone call to the far-end data endpoint; and means responsive to the telephone number for identifying an associated set of stored tap values and for initializing an equalizer of the data communications equipment apparatus with the identified set of stored tap values to compensate for the fixed analog portion of the communications channel.
References Cited (Backward Citations)
US4285061A
Cited
US4416015A
Cited
US4489416A
Cited
US5343516A
Cited
US5333186A
Cited
US5301246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-04 | 2000-08-05 | 2001-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-04 | 2004-08-05 | 2005-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-04 | 2008-08-05 | 2009-02-04 | $7700.00 | Window Closed / Lapsed |