Invention Grant
- Patent Title: Telephone system with controllable ringing voltage
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Application No.: US10218987Application Date: 2002-08-14
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Publication No.: US07046797B2Publication Date: 2006-05-16
- Inventor: Alberto Canella , Gerhard Noessing
- Applicant: Alberto Canella , Gerhard Noessing
- Applicant Address: DE Munich
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Munich
- Agency: Fish & Richardson P.C.
- Priority: DE10140357 20010817
- Main IPC: H04M1/00
- IPC: H04M1/00
Abstract:
A telephone system includes a controllable ringing generator for generating a ringing signal and an interface for providing a ringing voltage derived from that signal on the transmission line. The controllable ringing generator includes a control device for controlling the ringing voltage in response to the ringing current.
Public/Granted literature
- US20030064760A1 Telephone system with controllable ringing voltage Public/Granted day:2003-04-03
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