Incoming calling system
US5960367A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | May 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M19/047
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An incoming calling system of the present invention purposes to securely notify the user of the incoming to a radio portable terminal of a mobile communication unit or the like without disturbing others and decrease the probability of erroneous notification. Therefore, an incoming notification signal transmitter (24) for notifying the user of incoming can detect an incoming tone by inserting a jack into and connecting it with an earphone-microphone terminal (23) provided for a portable telephone (21) side and moreover, an incoming notification signal transmitter (24) is set to and supported by portable telephone (21). When portable telephone (21) receives an incoming call signal according to incoming calling from a base station (22), it generates a speech signal of an incoming tone and the speech signal is input to the incoming notification signal transmitter (24) through the earphone-microphone terminal (23) to detect incoming. The incoming notification signal transmitter (24) is constituted so as to generate incoming notification signal (25), transmit the signal to a card-type incoming notification signal receiver (26) or a wrist-type incoming notification signal receiver (27) by…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.