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 for use with a hook switching device capable of hook switching the telephone on and off hook when a call is accepted or terminated comprising:
- a communications device in communication with a telephone device,
- a sensor located on the telephone device for sensing a ringing signal, and
- a ringtone detector connected to the sensor and the communications device, wherein the ringtone detector comprises a feature extractor associated with the ringtone detector, which detects and learns distinctive ringtones,
- 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 when the comparator identifies a match with a previously learned ringtone characteristics and then generates an alert signal in response thereto.
A communications system for use with a telephonic communications device, comprising:
- a sensor located proximate the telephonic device capable of sensing its ring signal, and
- a ringtone detector connected to the sensor, including a feature extractor which detects and learns distinctive ringtones automatically,
- a ringtone memory capable of storing characteristics of extracted ringtones for later retrieval and comparison;
- comparator for comparing previously stored ringtone characteristics to incoming ringtone characteristics
- 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 the detected ringing signal to create a processed signal,
- 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 ringtone is determined to be new, one or more characteristics of that distinctive ringtone is/are learned and stored in a memory.
Dependencies are inferred from the claim text.