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. 15, 2000
Filed:
Feb. 02, 1998
Applicant:
Inventor:
In-soo Kim, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03M / ;
U.S. Cl.
CPC ...
341 22 ; 341 24 ; 341 25 ; 341182 ;
Abstract
A method for entering a special mode of an electric device in which the special mode such as a test mode exists. According to the method, at least two coded keys are continuously inputted. From an initial key input, the coded keys are inputted in respectively predetermined amounts of time to enter the special mode. The special mode is not entered when: (1) only one of the coded keys is inputted; (2) the continuously inputted keys are not inputted in the respectively predetermined times; or (3) a combination of the continuously inputted keys is not the same with a combination of predetermined keys.