Patent ID: 9596656
Date: 2017-03-14
CPC Classifications: H04B,H04W

Claim:
1. A vehicular wireless transmission apparatus used by being installed in a host vehicle that belongs to a host vehicle model, the vehicular wireless transmission apparatus cooperating with a different apparatus that is provided in the host vehicle to be separated from the vehicular wireless transmission apparatus, the different apparatus containing a host vehicle model data indicating the host vehicle model of the host vehicle, the vehicular wireless transmission apparatus comprising: an antenna; a wireless transmission portion which provides modulation and output power to a signal to transmit; a coaxial cable that is included in a conductive line that connects the wireless transmission portion to the antenna; an adjustment value storage portion that is rewritable, storing, before being installed in the host vehicle, a table storage portion that stores, before being installed in the host vehicle, an output adjustment section which provides an adjustment of the output power of the wireless transmission portion after being installed in the host vehicle based on the determined adjustment value so as to adjust an effective transmission power emitted from the antenna to a predetermined value; and an adjustment value determination section that wherein when the performed determination is affirmed, the adjustment value determination section maintains the determined adjustment value, which was stored in the adjustment value storage portion before the vehicular wireless transmission apparatus is installed in the host vehicle, to be unchanged; when the performed determination is negated, the adjustment value determination section the output adjustment section provides the adjustment of the output power of the wireless transmission portion, after being installed in the host vehicle, based on the determined adjustment value that is presently stored in the adjustment value storage portion and corresponding to the host vehicle model data read from the different apparatus.