US4366573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for synchronizing code machines which are operated within the framework of a block transmission network
Assignee: Siemens AG
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Filing: 1980-08-22
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Granted: 1982-12-28
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Expires: 2000-08-22
Abstract
Abstract A method for synchronizing code machines, operated within a block network, provides that a connection completion block be transmitted and a connection confirmation block be received and stored by a code machine, after which the code machines are phased in. The transmitting code machine then causes transmission of the connection confirmation block to its own data terminal equipment. After transmission of the last data block, a connection release block is recognized by the code machine and the machines are phased out.
Inventors
- 👤 Walter Rauch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:32
CPC Classifications
H; H04; H04L; H04L9/00; H04L9/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
In a method of synchronizing first and second code machines which are operated in a packet switching network, in which a set up block is transmitted to set up a connection between a first data terminal equipment and a second data terminal equipment, a connection confirmation block is transmitted between the second data terminal equipment and the first data terminal equipment, and then the data terminal equipments then transmit data blocks to one another, the improvement therein comprising the steps of: storing the connection confirmation block in the first code machine of the first data terminal equipment; after receiving the connection confirmation block, transmitting a code machine synchronization block from one code machine to the other to synchronize code computers in the code machines; and after synchronization of the code computers, relaying the connection confirmation block to the first data terminal equipment.
Claim 2
Dependent Claim
142 words
In a method of synchronizing first and second code machines which are operated in a packet switching network, in which a set up block is transmitted to set up a connection between a first data terminal equipment and a second data terminal equipment, a connection confirmation block is transmitted between the second data terminal equipment and the first data terminal equipment, and then the data terminal equipments then transmit data blocks to one another, the improvement therein comprising the steps of: storing the connection confirmation block in the first code machine of the first data terminal equipment; after receiving the connection confirmation block, transmitting a code machine synchronization block from one code machine to the other to synchronize code computers in the code machines; and after synchronization of the code computers, relaying the connection confirmation block to the first data terminal equipment.
Claim 3
Dependent Claim
49 words
The improved method of claim 1, comprising the step of: forming the code machine synchronization block comprising a heading, a preamble including a key and an information for characterizing the terminated phase-in, a check bit sequence for checking the phasing-in, and information for the identification of the terminated phasing-out.
Claim 4
Dependent Claim
61 words
The improved method of claim 1, and further defined by the steps of: transmitting a first synchronization block from the first code machine to the second code machine to synchronize their respective transmitting and receiving portions; and then transmitting a second synchronization block from the second code machine to the first code machine to synchronize the respective transmitting and receiving portions.
Claim 5
Dependent Claim
29 words
The improved method of claim 3, and further defined by: relaying the connection confirmation block to the first data terminal equipment after receiving the second code machine synchronization block.
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) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |