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:
Apr. 22, 2008
Filed:
May. 09, 2006
Ferenc Fekete, Lamma Island, HK;
Ming Ki AU, North Point, HK;
Celement Chiu Sing Tse, Hong Kong SAR, HK;
Kenny Chi Ken Lee, Tai Po, New Territories, HK;
Chi Keung Tang, Tai Po, New Territories, HK;
Man Keung Mak, Pokfulam, HK;
Ming Lam NG, Hong Kong SAR, HK;
Kwok Kit Mak, Hong Kong SAR, HK;
Nai Lap Lee, Shum Wan, HK;
Ferenc Fekete, Lamma Island, HK;
Ming Ki Au, North Point, HK;
Celement Chiu Sing Tse, Hong Kong SAR, HK;
Kenny Chi Ken Lee, Tai Po, New Territories, HK;
Chi Keung Tang, Tai Po, New Territories, HK;
Man Keung Mak, Pokfulam, HK;
Ming Lam Ng, Hong Kong SAR, HK;
Kwok Kit Mak, Hong Kong SAR, HK;
Nai Lap Lee, Shum Wan, HK;
Other;
Abstract
A method of controlling a two-phase stepping motor to operate in one of a plurality of operating modes in which output of the motor behaves differently upon encountering obstacle, comprises the steps of: