Philips Electronics North America Corporation

Peter J M Sijbers

Laurens Cornelis Van Leeuwen

Franciscus J M Thus

A description is given of a communication set for connection to a communication line such as a telephone line, which communication set includes means for detecting set functions such as ringing signal detection, and a rectifier circuit which is connected to a common output which is coupled to a scanning device included in the set function detection means, which scanning device detects the line conditions. A large number of line conditions may be detected with a minimum of components required, among which an analog/digital converter for which only a single input pin on a chip is necessary.

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Eindhoven, Netherlands

Peter J M Sijbers