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:
Aug. 11, 1998
Filed:
Jun. 14, 1996
Koichi Kazami, Tokyo, JP;
General Research of Electronics, Inc., Tokyo, JP;
Abstract
A system for externally setting reception frequency parameters of a radio scanner having a memory which is programmable according to data in the form of an electric pulse signal generated according to a protocol by a computer. The system includes a computer, a stereo phone plug connected to the RS-232 port of the computer, and a scanner stereo phone jack which can receive both of the stereo phone plug and a monaural ear-phone plug. The stereo phone plug has a common electrode, a first signal electrode and a second signal electrode. The second signal electrode carries the data from the computer to the scanner. The stereo phone jack has a common electrode, a first signal electrode and a second signal electrode. The common electrode, the first signal electrode and the second signal electrode of the stereo phone jack are adapted to be connected to the common electrode, the first electrode and the second signal electrode of the stereo phone plug, respectively, when the stereo phone plug is inserted into and connected to the stereo phone jack. A level converter circuit is provided between the computer and the scanner and is connected to the second signal electrode of the stereo phone jack for converting the signal level of the data from the second signal electrode and the common electrode of the stereo phone jack to the level of the electric pulse signal which is suitable to write the program to the memory of the scanner.