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US 7,010,098 B2Granted
Ultrasonic proximity detector for a telephone device
AssigneeMitel Corporation
InventorsPhilippe Moquin, Stephane Dedieu
Life of this patent
Estimating the term…
Abstract
An ultrasonic proximity detector for a telephone device to detect the proximity of an object thereto includes an ultrasound signal generator generating ultrasound that is broadcast by a speaker of the telephone device. Processing circuitry is coupled to a microphone of the telephone device. The processing circuitry processes broadcast ultrasound that is picked up by the microphone to detect the proximity of an object to the telephone device.
Claims10
A telephone device comprising:
- a telephone set;
- at least one speaker associated with said telephone set to broadcast output audio signals;
- a handset associated with said telephone set and having a microphone to receive input audio signals;
- and
- an ultrasound proximity detect unit comprising:
- an ultrasound generator generating ultrasound that is broadcast by said speaker;
- processing circuitry coupled to said microphone, said processing circuitry processing broadcast ultrasound that is picked up by said microphone to detect the proximity of said handset to said telephone set;
- and
- an ultrasound waveguide extending from adjacent said speaker to a portion of a cradle of said telephone set accommodating the handset microphone.
6 more elements
A telephone device comprising:
- a telephone set;
- a handset coupled to said telephone set;
- a cradle on said telephone set to accommodate said handset;
- a keypad on said telephone set;
- a loudspeaker and microphone assembly accommodated by said telephone set;
- circuitry within said telephone set to handle incoming and outgoing telephone calls;
- and
- an ultrasonic proximity detector accommodated by said telephone set, said ultrasonic proximity detector comprising:
- an ultrasound generator generating ultrasound that is broadcast by said loudspeaker and microphone assembly;
- processing circuitry coupled to said loudspeaker and microphone assembly, said processing circuitry processing broadcast ultrasound that is picked up by said loudspeaker and microphone assembly to detect the proximity of said handset to said telephone set;
- and
- an ultrasound waveguide extending from adjacent said loudspeaker and microphone assembly to a portion of the cradle accommodating the handset microphone.
9 more elements
Dependencies are inferred from the claim text.