Automobile antenna system for diversity reception
CA 1267973 C · Owner: Toyota Jidosha Kabushiki Kaisha · Inventors: Kondo, Hiroshi; Ohe, Junzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automobile antenna system for diversity reception comprising high-frequency pickups for effectively picking up the high-frequency surface currents which are induced on a vehicle body by broadcast waves and which flow concentratedly on the marginal edge portions of said vehicle body. The high-frequency pickups are disposed on both sides of the roof panel at the rear and front portions of a vehicle body in close proximity to the marginal edge and in a concealed state without any external exposure. The pickup that enjoys the optimum reception at any given time is selected from among the pickups by automatic changeover.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 17, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.