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. 19, 2000
Filed:
May. 22, 1997
Jong-Soo Hwang, Seoul, KR;
Kyung-Joon Chun, Seoul, KR;
Abstract
A device for attaching a earphone key to an earphone-microphone used for a portable phone and performing communication operations and a method therefor. The communication process device of a portable phone including: an earphone-microphone having an earphone key and a plug; a jack for transmitting the voice signal received from a counterpart station to the earphone-microphone upon insertion of the plug and for transmitting a user's voice signal; an earphone-microphone detection unit for generating an earphone-microphone signal upon insertion of the plug; an earphone key sensing unit for generating an earphone key signal upon input of the earphone key; a micro processor for controlling communication functions upon sensing presence/absence of input of the earphone-microphone signal, if the earphone key signal is inputted upon sense of a ring, if the earphone key signal is inputted after input of a telephone number, and if, during communication, the earphone key signal is not inputted for given time; an audio processor for processing a voice upon calling by control of the micro processor; and an earphone-microphone selection unit for selecting a microphone of the earphone-microphone by the external microphone selection signal.