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. 27, 1999
Filed:
Nov. 17, 1997
Applicant:
Inventors:
Kang-Hoon Lee, Seongnam, KR;
Kyung-Jun Choen, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379433 ; 379434 ;
Abstract
An electrical contact free microphone attachment for a flip-type radio phone which has a flip, a microphone mounted in said flip, a main set, an audio circuit installed in the main set, and a connecting device for connecting the flip with the main set. The invention comprises a transformer having a primary coil, a secondary coil and a core. The primary coil is arranged in the flip to connect with the microphone. The secondary coil is arranged in the main set to connect with the audio circuit. The core is fixedly arranged in an axial hole formed in the connecting device.