|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||G08C-019/16 G01P-003/52 G01P-013/00|
|미국특허분류(USC)||340/87024 ; 324/165 ; 318/341 ; 340/87018|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 7 인용 특허 : 5|
A method for detecting the position and the velocity by using an encoder mounted directly on a moving body wherein original signals of the encoder are pulse-width modulated by using a sampling carrier wave and the position is detected by measuring the width of the pulses thus obtained. An apparatus for implementing the method comprises a carrier wave generation circuit, a pulse width modulation circuit which pulse-width modulates the original signals coming from the encoder by using the carrier wave, a pulse width timer which measures the width of the pu...
A method for detecting position and velocity of a moving body by using a two-phase encoder mounted directly on said moving body, said encoder generating two sinusoidally varying original signals differing in phase, the method comprising the steps of: pulse-width modulating one of said original signals by using a sampling carrier wave so as to derive a pulse-width modulated signal; measuring a pulse width of said pulse-width modulated signal; calculating, on the basis of said pulse width of said pulse-width modulated signal and a sampling time length of s...