US6965608B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for transmitting data in a public network
Assignee: Cisco Technology Inc
•
Filing: 1998-06-30
•
Granted: 2005-11-15
•
Expires: 2018-06-30
Abstract
Abstract A method and apparatus are described for transmitting data in a network between first and second single-line digital subscriber line (SDSL) modems using a standard high data rate digital subscriber line (HDSL) frame format. The frame format includes at least one field in each data payload block, e.g., the F/Z bit field, for implementing a feature relating to one of the T1 and E1 transmission protocols. According to the invention, the at least one field is employed for transmission of selected payload data.
Inventors
- 👤 Sanjay Aiyagari
- 👤 Mick Henniger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:34
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06; H04M11/068; H04J; H04J3/00; H04J3/02; H04J3/12; H04J3/16; H04J3/1605; H04J3/1623; H04L; H04L7/00; H04L7/02; H04L7/033
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
101 words
A method for transmitting payload data in a network between fast and second single-line digital subscriber line (SDSL) modems using a standard high data rate digital subscriber line (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the method comprising directing selected bits of the payload data to an F/Z bit register, and automatically inserting one of the selected bits from the F/Z bit register into the F/Z bit field in every frame.
Claim 2
Independent Claim
101 words
A method for transmitting payload data in a network between fast and second single-line digital subscriber line (SDSL) modems using a standard high data rate digital subscriber line (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the method comprising directing selected bits of the payload data to an F/Z bit register, and automatically inserting one of the selected bits from the F/Z bit register into the F/Z bit field in every frame.
Claim 3
Dependent Claim
48 words
The method of claim 1 further comprising: receiving the payload data as a data stream with the first SDSL modem; generating a sequence of data frames in the HDSL frame format with the first SDSL modem; and transmitting the sequence of data frames to the second SDSL modem.
Claim 4
Dependent Claim
48 words
The method of claim 1 further comprising: receiving the payload data as a sequence of data frames in the HDSL frame format from the first SDSL modem with the second SDSL modem; and decomposing the sequence of data frames into a data stream with the second SDSL modem.
Claim 5
Dependent Claim
34 words
The method of claim 1 wherein the network comprises a public telephone network, the first SDSL modem being associated with a central office and the second SDSL modem being associated with a subscriber premises.
Claim 6
Dependent Claim
34 words
The method of claim 1 wherein the network comprises a public telephone network, the first SDSL modem being associated with a subscriber premises and the second SDSL modem being associated with a central office.
Claim 7
Dependent Claim
130 words
A single-line digital subscriber line (SDSL) modem for transmitting a sequence of data frames including payload data according to a standard high data rate digital subscriber line (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the modem comprising: framing circuitry for receiving an incoming data stream and generating the sequence of data frames, the framing circuitry directing selected bits of the payload data to an F/Z bit register, and automatically inserting one of the selected bits from the F/Z bit register into the F/Z bit field in every frame; and modulation circuitry for modulating and transmitting the sequence of data frames.
Claim 8
Dependent Claim
130 words
A single-line digital subscriber line (SDSL) modem for transmitting a sequence of data frames including payload data according to a standard high data rate digital subscriber line (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the modem comprising: framing circuitry for receiving an incoming data stream and generating the sequence of data frames, the framing circuitry directing selected bits of the payload data to an F/Z bit register, and automatically inserting one of the selected bits from the F/Z bit register into the F/Z bit field in every frame; and modulation circuitry for modulating and transmitting the sequence of data frames.
Claim 9
Dependent Claim
131 words
A single-line digital subscriber line (SDSL) modem for receiving a sequence of data frames including payload data in a standard high data rate digital subscriber lie (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the modem comprising: demodulation circuitry for receiving and demodulating the sequence of data frames; and framing circuitry for receiving the demodulated sequence of data frames and generating a data stream, the framing circuitry directing bits in the F/Z bit field of the demodulated sequence to an F/Z bit register, and automatically inserting one of the bits from the F/Z bit register into the data stream for every frame.
Claim 10
Dependent Claim
131 words
A single-line digital subscriber line (SDSL) modem for receiving a sequence of data frames including payload data in a standard high data rate digital subscriber lie (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the modem comprising: demodulation circuitry for receiving and demodulating the sequence of data frames; and framing circuitry for receiving the demodulated sequence of data frames and generating a data stream, the framing circuitry directing bits in the F/Z bit field of the demodulated sequence to an F/Z bit register, and automatically inserting one of the bits from the F/Z bit register into the data stream for every frame.
Claim 11
Independent Claim
104 words
An apparatus for transmitting data in a network between first and second single-line digital subscriber line (SDSL) modems using a standard high data rate digital subscriber line (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the apparatus comprising framing circuitry programmed to direct selected bits of the payload data to an F/Z bit register, and automatically insert one of the selected bits from the F/Z bit resister into the F/Z bit field in every frame.
Claim 12
Independent Claim
104 words
An apparatus for transmitting data in a network between first and second single-line digital subscriber line (SDSL) modems using a standard high data rate digital subscriber line (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the apparatus comprising framing circuitry programmed to direct selected bits of the payload data to an F/Z bit register, and automatically insert one of the selected bits from the F/Z bit resister into the F/Z bit field in every frame.
Claim 13
Dependent Claim
119 words
At least one computer readable medium having computer program instructions stored therein for causing a network device to transmit data in a network between first and second single-line digital subscriber line (SDSL) modems using a standard high data rate digital subscriber line (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the computer program instructions comprising first instructions for direct selected bits of the payload data to an F/Z bit register, and automatically insert one of the selected bits from the F/Z bit into the F/Z bit field in every frame.
Claim 14
Dependent Claim
119 words
At least one computer readable medium having computer program instructions stored therein for causing a network device to transmit data in a network between first and second single-line digital subscriber line (SDSL) modems using a standard high data rate digital subscriber line (HDSL) frame format, the frame format including an F/Z bit field in each payload block for enabling a feature corresponding to one of T1 and E1 transmission protocols and not conventionally used for transmitting the payload data, the computer program instructions comprising first instructions for direct selected bits of the payload data to an F/Z bit register, and automatically insert one of the selected bits from the F/Z bit into the F/Z bit field in every frame.
References Cited (Backward Citations)
US5533028A
Cited
US6246695B1
Cited
US5598413A
Cited
US5809033A
Cited
US5903567A
Cited
US5751723A
Cited
US6118766A
Cited
US5940403A
Cited
US5930312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-11-14 | 2009-05-16 | 2009-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-11-14 | 2013-05-16 | 2013-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-11-14 | 2017-05-16 | 2017-11-15 | $7700.00 | Window Closed / Lapsed |