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:
Jul. 18, 1989
Filed:
Oct. 26, 1987
Applicant:
Inventor:
Mark E Campbell, Grand Rapids, MI (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455 74 ; 343715 ;
Abstract
A method for installing a cellular telephone transceiver in a vehicle having an existing FM receiver and matching quarter-length monopole antenna comprises connecting the cellular telephone to the existing antenna. The connection between the existing antenna and receiver may be broken and an adapter provided. The purpose of the adapter is to connect the antenna to a junction, to insert a low-pass filter between the existing receiver and the junction and to insert a high-pass filter or impedance matching device between the cellular telephone and the junction. The antenna functions as a two-wavelength monopole for the higher frequence cellular telephone transceiver.