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:
Oct. 26, 2010
Filed:
Jun. 16, 2005
Tomoaki Nishikido, Ishikawa, JP;
Yutaka Saito, Ishikawa, JP;
Yukari Yamazaki, Toyama, JP;
Yoshio Koyanagi, Kanagawa, JP;
Kiyoshi Egawa, Tokyo, JP;
Tomoaki Nishikido, Ishikawa, JP;
Yutaka Saito, Ishikawa, JP;
Yukari Yamazaki, Toyama, JP;
Yoshio Koyanagi, Kanagawa, JP;
Kiyoshi Egawa, Tokyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
There is provided a mobile telephone assuring a high reception sensitivity over a wide band without deteriorating the design of the mobile telephone. In the mobile telephone, a helical antenna () operating as an antenna for television reception is formed by winding a conductive element along the external surface of the case several times at the upper end of the upper case (). The helical antenna () is impedance-matched by a matching circuit () in a range of the order from 470 MHz to 700 MHz which is the television broadcast frequency. The matching circuit () is connected to a broadcast reception circuit (). The broadcast reception circuit () operates as a reception circuit for receiving the television broadcast wave.