Bi-directional translator
US3971014A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1974 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Oct 7, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A bi-directional translator may operate in a transmit non-translate mode or a transmit translate mode. In the transmit translate mode input characters in a first code appearing on a first input bus address a read only memory to read out second code translations of the characters on a first output bus. In the transmit non-translate mode the input characters are gated to the first output bus without addressing the memory. The translator may also operate in a receive translate mode or a receive non-translate mode. In the receive translate mode characters in the second code appearing on a second input bus address the memory to read out first code translations of the characters on a second output bus. In the receive non-translate mode characters in the first code appearing on the second input bus are gated to the second output bus without addressing the memory. In the first code the case of each character (upper or lower) is determined by a bit position within the character whereas the second code requires two special case characters which determine the case of the characters following them. The translator inserts the required case characters in the outgoing character sequence when oper…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.