US4587652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data control for telephone system
Assignee: Alcatel Lucent NV
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Filing: 1984-06-21
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Granted: 1986-05-06
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Expires: 2004-06-21
Abstract
Abstract In a telephone system, particularly a mobile radio-telephone system, incorporating statistical multiplexers and control concentrators for the arranging and formatting of digitized data, the data is formatted with operational codes designating specific meaning and any one of a plurality of levels of protection to be offered data transmitted via the telephone system. A back-up memory is connected to the statistical multiplexer to enable a retransmission of a batch of data in the event that the batch had been received with error. Full duplex communication is provided. A circular sequence number interleaved among batches of the data is utilized by an error detector at a receiving site to determine the presence of all portions of a batch of data. Transmission of specified operational codes and additional data as required in the reverse direction commands a retransmission and also provides for acknowledgement of receipt of a data batch with and without error.
Inventors
- 👤 Stuart O. Goldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:54
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/12; H04L1/16; H04L1/1607; H04J; H04J3/00; H04J3/16; H04J3/1682; H04L1/0001; H04L1/18; H04L1/1812; H04L1/1867; H04L1/1874
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
143 words
In a telephone system, a method of communicating digitized data comprising the steps of: storing batches of said data from each of a plurality of subscriber stations or cell site base equipment and system control elements prior to transmission of individual batches of said data from a first site to a second site; in each of said batches, counting segments of said data; in each of said batches, combining an operational code with said data to provide formatted data, said code including sequencing legends interleaved between successive ones of said segments of data; storing formatted data of each of said batches in a back-up memory; multiplexing the formatted data; transmitting the formatted data from said first site to said second site; and checking data received at said second site in accordance with one of a plurality of procedures designated by said operational code.
Claim 2
Dependent Claim
143 words
In a telephone system, a method of communicating digitized data comprising the steps of: storing batches of said data from each of a plurality of subscriber stations or cell site base equipment and system control elements prior to transmission of individual batches of said data from a first site to a second site; in each of said batches, counting segments of said data; in each of said batches, combining an operational code with said data to provide formatted data, said code including sequencing legends interleaved between successive ones of said segments of data; storing formatted data of each of said batches in a back-up memory; multiplexing the formatted data; transmitting the formatted data from said first site to said second site; and checking data received at said second site in accordance with one of a plurality of procedures designated by said operational code.
Claim 3
Dependent Claim
20 words
A method according to claim 1 further comprising the step of reformatting the formatted data to regenerate said digitized data.
Claim 4
Dependent Claim
34 words
A method according to claim 1 further comprising the step of selecting an operational code designating a checking procedure that is free of a further communication between said first site and said second site.
Claim 5
Dependent Claim
47 words
A method according to claim 1 further comprising the step of selecting an operational code designating a checking procedure comprising the steps of: signalling said first site of an error in the formatted data received at said second site; and retransmitting formatted data from said back-up memory.
Claim 6
Dependent Claim
55 words
A method according to claim 1 further comprising the step of selecting an operational code designating a checking procedure comprising the steps of: signalling said first site of an error in the formatted data received at said second site; retransmitting formatted data from said back-up memory; and signalling said first site of a correct transmission.
Claim 7
Dependent Claim
31 words
A method according to claim 1 further comprising the step of selecting an operational code designating a checking procedure comprising the step of signalling said first site of a correct transmission.
Claim 8
Dependent Claim
29 words
A method according to claim 1 further comprising the step of converting analog voice signals received from a mobile subscriber station at said first site to said digitized data.
Claim 9
Dependent Claim
19 words
A method according to claim 7 further comprising the step of selecting an operational code at said mobile station.
Claim 10
Dependent Claim
38 words
A method according to claim 4 further comprising the steps of: converting analog voice signals received from a mobile subscriber station at said first site to said digitized data; and selecting an operational code at said mobile station.
Claim 11
Dependent Claim
29 words
A method according to claim 5 further comprising the steps of: converting analog voice signals received from a mobile subscriber station at said first site to said digitized data.
Claim 12
Dependent Claim
15 words
A method according to claim 1 further incorporating the step of selecting the operational code.
Claim 13
Dependent Claim
55 words
A method according to claim 11 wherein said code selecting step comprises: establishing a digital byte having an even number of digits; dividing said byte into a first half and a second half; and forming one of said halves as a hexadecimal word, and the other of said halves is restricted to the letters A-F.
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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) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |