Vehicle call device, call system, center, and calling method
AssigneeToyota Jidosha Kabushiki Kaisha
InventorShinichi Yamamoto
Life of this patent
Estimating the term…
Abstract
A vehicle call device, a call system, a center, and a calling method capable of detecting a problem while controlling the cost increase are disclosed. The vehicle call device includes a speaker mounted in a vehicle, the speaker outputting a received voice of an opposite communication party; a microphone mounted in the vehicle; an echo canceller unit removing the received voice that has been output from the speaker and input into the microphone; a detecting unit detecting an emergency situation of the vehicle; and a remove preventing unit preventing the eco canceller unit from removing the received voice when the detecting unit detects the emergency situation.
Claims7
A vehicle call device comprising:
- a speaker mounted in a vehicle, the speaker outputting a received voice of an opposite communication party;
- a microphone mounted in the vehicle;
- an echo canceller unit removing the received voice that has been output from the speaker and input into the microphone;
- a detecting unit detecting an emergency situation of the vehicle;
- and
- a remove preventing unit preventing the echo canceller unit from removing the received voice when the detecting unit detects the emergency situation.
A call system comprising:
- a vehicle call device;
- a telephone network;
- and
- a center connected with the vehicle call device through the telephone network;
- wherein the vehicle call device includes
- a speaker mounted in a vehicle, the speaker outputting a received voice of an opposite communication party;
- a microphone mounted in the vehicle;
- an echo canceller unit removing the received voice that has been output from the speaker and input into the microphone;
- a detecting unit detecting an emergency situation of the vehicle;
- and
- a remove preventing unit preventing the echo canceller unit from removing the received voice when the detecting unit detects the emergency situation;
- and
- the center determines whether the vehicle call device has a problem based on whether the received voice transmitted by the center is echoed back.
A center communicating with a vehicle call device through a telephone network, wherein
- the vehicle call device includes
- a speaker mounted in a vehicle, the speaker outputting a received voice of an opposite communication party;
- a microphone mounted in the vehicle;
- an echo canceller unit removing the received voice that has been output from the speaker and input into the microphone;
- a detecting unit detecting an emergency situation of the vehicle;
- and
- a remove preventing unit preventing the echo canceller unit from removing the received voice when the detecting unit detects the emergency situation;
- wherein
- the center determines whether the vehicle call device has a problem based on whether the received voice transmitted by the center is echoed back.
A calling method for a vehicle call device, the method comprising the steps of:
- outputting a received voice from a speaker mounted in a vehicle;
- removing the received voice that has been output from the speaker and input into a microphone in the vehicle;
- detecting an emergency situation of the vehicle;
- and
- preventing removing the received voice when the emergency situation is detected.
Dependencies are inferred from the claim text.