Path-finding scheme for a multistage switching network
US4004103A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1975 |
| Grant date | Jan 18, 1977 |
| Priority date | — |
| Expiry date | Oct 15, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/521
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A plurality of idle paths through a multistage switching network which are capable of establishing a connection between a particular line and a particular trunk are identified. Repeated selection of paths identified as idle, but actually out-of-service, is avoided by selecting successively different ones of the identified idle paths in a pseudorandom manner to complete the connection between the line and the trunk. The pseudorandom path selection is accomplished in response to predetermined portions of a pseudorandom pattern of binary bits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.