Interface method and apparatus
US4587514A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Sep 7, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/1682
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An interface apparatus utilizing data encoding/decoding methods having particular application for use in interfacing data processing and telecommunication equipment is disclosed. The interface apparatus includes an encoder for encoding inputted data for transmission on a telecommunication system, and a decoder to receive the encoded data and decode the data stream such that it identically represents data originally provided to the encoder. The present invention detects channels in the inputted data which contain a predetermined value of bits, and stores the channel numbers of these detected channels in digital storage means. These detected channels are then deleted from the data stream, and the remaining inputted data in each of the data channels is shifted such that data previously located in the first data channel is inserted in the data channel offset by the number of channels stored in the storage means. The present invention then inserts the channel numbers previously stored in the storage means in empty data channels created by the shifting process. This encoded data stream is then transmitted, and is received by another unit of the present invention coupled to receiving data…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.