US5949762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for processing multiple telephone calls
Assignee: Telebit Corp
•
Filing: 1996-07-25
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Granted: 1999-09-07
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Expires: 2016-07-25
Abstract
Abstract An apparatus for processing telephone calls is connected between a primary rate ISDN (PRI) telephone line and a host computer. Telephone call data is transferred between the host computer and remote analog, basic rate ISDN (BRI) and/or PRI remote sites. The apparatus includes a digital signal processor that can run multiple signal processing sessions simultaneously and a control processor that can run multiple control processing sessions simultaneously. The apparatus can therefore process multiple telephone calls of one or more types simultaneously.
Inventors
- 👤 Douglas E. Green
- 👤 Kenneth D. Jones
- 👤 Rick Peralta
- 👤 Frank O. Voellmann
- 👤 Bruce Osler
- 👤 Grant Grummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:04
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0435; H04Q11/0464
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
A modem comprising: A) a line interface for coupling the modem to a telephone line; B) a computer interface for coupling the modem to a host computer; and C) a processing sub-system coupled between the line interface and the computer interface and comprising: i) a plurality of digital signal processors that process telephone-call data flowing between the line interface and the computer interface for a plurality of simultaneous telephone calls; and ii) common processing circuitry that generates control signals and performs data manipulation on the telephone-call data passing between the computer interface and the digital signal processors for the plurality of simultaneous telephone calls.
Claim 2
Dependent Claim
104 words
A modem comprising: A) a line interface for coupling the modem to a telephone line; B) a computer interface for coupling the modem to a host computer; and C) a processing sub-system coupled between the line interface and the computer interface and comprising: i) a plurality of digital signal processors that process telephone-call data flowing between the line interface and the computer interface for a plurality of simultaneous telephone calls; and ii) common processing circuitry that generates control signals and performs data manipulation on the telephone-call data passing between the computer interface and the digital signal processors for the plurality of simultaneous telephone calls.
Claim 3
Dependent Claim
16 words
The modem of claim 1 wherein the telephone line is a primary rate ISDN telephone line.
Claim 4
Dependent Claim
23 words
The modem of claim 1 wherein the plurality of simultaneous telephone calls processed by the modem comprise a plurality of digital telephone calls.
Claim 5
Dependent Claim
23 words
The modem of claim 1 wherein the plurality of simultaneous telephone calls processed by the modem comprise a plurality of analog telephone calls.
Claim 6
Dependent Claim
26 words
The modem of claim 1 wherein the plurality of simultaneous telephone calls processed by the modem comprise a digital telephone call and an analog telephone call.
Claim 7
Dependent Claim
19 words
The modem of claim 1 wherein the data manipulation performed by the common processing circuitry includes adding error-correction coding.
Claim 8
Dependent Claim
23 words
The modem of claim 1 wherein the data manipulation performed by the common processing circuitry includes detecting errors in accordance with error-correction coding.
Claim 9
Dependent Claim
17 words
The modem of claim 1 wherein the data manipulation performed by the common processing circuitry includes framing.
Claim 10
Dependent Claim
17 words
The modem of claim 1 wherein the data manipulation performed by the common processing circuitry includes de-framing.
Claim 11
Dependent Claim
18 words
The modem of claim 1 wherein the data manipulation performed by the common processing circuitry includes data compression.
Claim 12
Dependent Claim
18 words
The modem of claim 1 wherein the data manipulation performed by the common processing circuitry includes data de-compression.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-09-06 | 2003-03-08 | 2003-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-06 | 2007-03-08 | 2007-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-06 | 2011-03-08 | 2011-09-07 | $7700.00 | Window Closed / Lapsed |