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:
Sep. 01, 1998
Filed:
Jul. 13, 1995
Hiroshi Suzuki, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An antenna switching circuit for a portable radio-frequency apparatus, such as a portable telephone, provides an antenna switching circuit which enables switching of a radio-frequency signal path passing through an antenna, between a built-in antenna and an external antenna, and which increases the degree of freedom in arranging the components of the apparatus, which comprises a built-in antenna 3, an external-antenna connector 2a and a radio-frequency cable 6 serving as a path for radio-frequency signals, with an electrical control switch 11 for selecting either the built-in antenna 3 or the external-antenna connector 2a.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile