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:
Feb. 17, 2004
Filed:
Feb. 21, 2003
Masaaki Kusumi, Kanagawa, JP;
Michio Okano, Kanagawa, JP;
Shigeru Ishimoto, Kanagawa, JP;
Mitsuru Ohno, Kanagawa, JP;
Yasuo Nekado, Kanagawa, JP;
Sony Precision Technology Inc., Tokyo, JP;
Abstract
There is provided a position transducer ( ) capable of accurately detecting an n-bit code by n ABS detectors from one ABS track. When an INC value is under j or over k, signal output from each of the ABS detectors is binarized based on a threshold h and also based on a threshold l. First, an ABS value decider ( ) decides that a bit is “H” when it has been judged as being “H” on the basis of both the thresholds and a bit is “L” when it is has been judged as being “L” on the basis of both the thresholds. When the INC value is under j, a lower bit has the same code as that of the deiced bit. So, the ABS value decider ( ) decides that the lower bit is “H” or “L”. On the other hand, when the INC value is over k, an upper bit has the same code as the decided code. Thus, the ABS value decider ( ) decides that the upper bit is “H” or “L”. The ABS value decider ( ) decides a yet-to-decide bit to be “L” when a bit adjacent to the bit is “H”, and “H” when the adjacent bit is “L”.