Adaptive ringtone detector
AssigneeGN Netcom A/S
InventorThomas Pedersen
Life of this patent
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Abstract
A communications system and a method of detecting and learning new ringtones in an automatic manner, comprising a desk phone (1), a hook switch, a ringtone detector (3), and a communications device (2). In a first embodiment a mechanical hook switch device is connected to the desk phone (1), and in a second embodiment an electronic hook switch unit (9) is connected to the desk phone (1). The ringtone detector (3) adaptively sets the filter and amplifier parameters according to the sensor position and pick-up sensitivity. The ringtone detector (3) automatically detects and learns the characteristics of new ringtones. The communications device (2) may comprise a base station (6) and a headset (7).
Claims19
A communications system comprising:
- a hook switch connected to a telephone device capable of hook switching the telephone when a call is accepted or terminated,
- a communications device in communication with the telephone device and/or the hook switch,
- a sensor located on the telephone device sensing a ringing signal, and
- a ringtone detector connected to the sensor and the communications device,
- wherein the ringtone detector comprises a feature extractor connected to the ringtone detector, which detects and learns distinctive ringtones automatically,
- a ringtone feature memory capable of storing characteristics of ringtones for later retrieval and comparison;
- a comparator for comparing previously stored ringtone characteristics to incoming ringtone characteristics,
- an alert generator, responsive to said comparator to send an alert signal to the user when the comparator identifies a match with a previously learned ringtone.
A method of adaptively detecting and learning distinctive ringtones comprising:
- detecting a ringing signal from a sensor located on a telephone device,
- filtering and amplifying the detected ringing signal to create a processed signal,
- comparing the processed signal to predetermined thresholds,
- determining one or more characteristics of a ringtone, and
- transmitting an alert signal to a communications device once a ringtone has been determined,
- wherein when a new ringtone is determined, one or more characteristics of that distinctive ringtone is/are learned and stored in a memory.
Dependencies are inferred from the claim text.