Smart interface technology
US5937031A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1998 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Jul 29, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6025
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention overcomes interface problems between proprietary handset ports on telephone base units and voice/data accessory products by allowing a user to automatically calibrate the telephone accessory product for an optimal interface match with the intended telephone base unit. This is accomplished through the use of a "Smart Interface Technology" (SIT) integrated chip set consisting of a full custom analog and semi-custom digital integrated circuit. The SIT incorporates three different methods for "learning" the characteristics of 4-wire port modular interfaces found in all telephone station sets. Basically, these methods determine the appropriate 4-wire terminal configurations, the transmit and receive channels of the intended telephone base unit, and adjust the channel sensitivities until an optimal and clear signal is provided for the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.