Message preparation timing apparatus
US4286112A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 1980 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | May 9, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/1414
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus is disclosed for use with teletypewriter consoles in teleprinter communication networks for providing transmission time information during message preparation; namely, the number of whole minutes of message time plus either the number of characters remaining to the next full minute, or tenths of minutes of additional message time used. Such information enables the user to anticipate and thus optimize message time for which he is charged in a rounding-up charge procedure commonly used in such teleprinter communication networks. A preferred embodiment consists of a microprocessor-based computer for converting each character on a perforated tape to a sub-unit of time corresponding to the appropriate transmission rate of either TELEX or TWX network services. A 6-digit display permits the user to observe the actual number of whole minutes and either number of characters to the next whole minute or number of tenths of minutes already used in addition to whole minutes as he is preparing a perforated tape containing the message to be transmitted at a subsequent time. By merely checking the display, the operator may be continuously apprised of the time in minutes and tenths of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.