Interpolation apparatus in encoder

Coded data generation or conversion – Phase or time of phase change – Synchro or resolver signal

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C341S111000, C341S116000, C324S207120, C324S207130, C324S207250

Reexamination Certificate

active

11600212

ABSTRACT:
An interpolation apparatus in an encoder includes an analog-to-digital converter for digitizing a sine wave signal and a cosine wave signal, respectively. An amplitude level detecting circuit detects each amplitude level of the digitized sine wave signal and cosine wave signal. A computing circuit multiplies the amplitude level of one of the signal by an interpolation position parameter according to a tangent value at an interpolation position. A comparing circuit compares an output from the computing circuit to an output from the amplitude level detecting circuit. The comparison is made at every the interpolation position. A region detecting circuit identifies a region sectionalized by the interpolation positions adjacent to each other based on an output from the comparing circuit corresponding to each the interpolation position. The phase angle of the sine wave signal and the cosine wave signal exists in the region.

REFERENCES:
patent: 5999113 (1999-12-01), Kiriyama et al.
patent: 6188341 (2001-02-01), Taniguchi et al.
patent: 7015840 (2006-03-01), Takehara
patent: 2-186221 (1990-07-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Interpolation apparatus in encoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interpolation apparatus in encoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interpolation apparatus in encoder will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3920633

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.