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.

Date of Patent:
Dec. 29, 2009

Filed:

Jul. 27, 2005
Applicants:

Mun Ho Jung, Gyeonggi-do, KR;

Dong Hoon Yi, Seoul, KR;

Inventors:

Mun Ho Jung, Gyeonggi-do, KR;

Dong Hoon Yi, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/00 (2006.01); G06F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A self-tuning apparatus of vehicle speed pulse coefficient and a method thereof wherein a vehicle speed pulse coefficient is flexibly adjusted by environments in which a mobile object travels and a current status of the mobile object to thereby enable to precisely calculate a travel distance and a travel speed of the mobile object in response to a vehicle speed pulse signal. A tuning start signal is generated when a value of DOP (Dilution of Precision) and travel status of the mobile object meet a condition for tuning a vehicle speed pulse coefficient value, and the vehicle speed pulse coefficient value is calculated by a travel speed pulse coefficient tuning unit using a travel distance of the mobile object discriminated by a discriminating unit and the number of vehicle speed pulse signals counted by a travel speed pulse signal counting unit during an established period of time when a tuning start signal is kept being generated during the established period of time, and the pre-established travel speed pulse coefficient value is tuned by the calculated vehicle speed pulse coefficient value.


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