The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 2010
Filed:
Feb. 24, 2009
Shirou Koide, Anjo, JP;
Shirou Koide, Anjo, JP;
Denso Corporation, Kariya, JP;
Abstract
A GPS signal from a GPS antenna is provided not only for a navigation apparatus through an amplifier but also for a data communication module (DCM) through a TEL antenna for establishing communication with a station for data exchange, by devising high frequency switches that is controlled by an ON/OFF of an antenna power supply on both of an input side and an output side of the amplifier. When the amplifier is in operation, one of the switches is turned on for distributing the GPS signal to a TEL antenna side. When the amplifier is not in operation, the other switch is turned on for transmitting the GPS signal from the GPS antenna to the TEL antenna side. In this manner, the GPS signal is provided for both of the navigation apparatus and the data communication module without deteriorating signal quality from the GPS antenna.