Denso Corporation

Tooru Kakehi

Hideaki Suzuki

Yousuke Kimura

Takehiro Abeta

Takafumi Okayasu

An in-vehicle handsfree apparatus establishes a handsfree profile connection with at least two cellular phones. It may be determined that a first cellular phone and a second cellular phone are receiving incoming calls at the same time, or that while a first cellular phone is calling, a second cellular phone is receiving an incoming call. In such a case, based on attributes (for example, a holder or intended use) of the first and second cellular phones, a notice manner of information on incoming call or information on telephone call is differentiated, for instance, in regard to a background color of a display window.

In-vehicle handsfree apparatus

When an in-vehicle apparatus receives an information retrieval request from a portable cellular phone along with a phone ID of the cellular phone, a link key is generated in the in-vehicle apparatus based on the phone ID and an apparatus ID of the in-vehicle apparatus. When the link key coincides with a previously generated link key that is associated with information stored in the in-vehicle apparatus, the in-vehicle apparatus permits the cellular phone to retrieve only the associated information, which is stored in the in-vehicle apparatus and is associated with the previously generated link key, so that retrieval of information other than the associated information from the in-vehicle apparatus by the cellular phone is prohibited.

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Toyoake, Japan

Tooru Kakehi