US 7,595,761 B2
Vehicular door mirror device
Terukazu Hiroe, Aichi-ken (Japan); Nana Nakajima, Aichi-ken (Japan); Hiroaki Kojima, Aichi-ken (Japan); Satoshi Ito, Aichi-ken (Japan); and Nobuhiro Ide, Toyota (Japan)
Assigned to Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho, Aichi-ken (Japan); and Toyota Jidosha Kabushiki Kaisha, Aichi-ken (Japan)
Filed on Mar. 22, 2006, as Appl. No. 11/385,819.
Claims priority of application No. 2005-086880 (JP), filed on Mar. 24, 2005; and application No. 2005-086881 (JP), filed on Mar. 24, 2005.
Prior Publication US 2006/0214862 A1, Sep. 28, 2006
Int. Cl. H01Q 1/32 (2006.01)
U.S. Cl. 343—713  [343/711] 15 Claims
OG exemplary drawing
 
1. A vehicular door mirror device comprising:
an antenna that is disposed inside a mirror enclosure disposed such that the mirror enclosure protrudes outward from a door of a vehicle, with the antenna being capable of at least one of receiving radio transmissions from the outside of a vehicle cabin or transmitting radio transmissions to the outside of the vehicle cabin; and
a metal frame for attaching parts disposed inside the mirror enclosure, supporting the antenna with a fixing member, and serving as the ground of the antenna,
wherein the antenna includes a matching-use base plate having a control circuit that adjusts at least one of the receiving efficiency or the transmitting efficiency of radio transmissions, and the fixing member fixes and electrically connects the antenna to the frame.