Noise cancellation in digitizing system and method

Details Noise cancellation in digitizing system and method Noise cancellation in digitizing system and method

1988-08-29

1989-08-22

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

382 59, G08C 2100

Patent

active

048598143

ABSTRACT:
A digitizing system includes a differential noise reduction technique wherein spaced parallel grid conductors in a tablet are differentially sensed in order to cancel out locally induced noise signals. Grid conductors also are sensed in a single ended fashion to initially locate a grid conductor conducting a larger induced carrier signal amplitude than any other grid conductor and produce amplitude data that is used to eliminate ambiguities arising from differential sensing of pairs of spaced grid conductors.

REFERENCES:
patent: 4736073 (1988-04-01), Abernethy
patent: 4794208 (1988-12-01), Watson

Affiliated with

Also associated with

Rating

Noise cancellation in digitizing system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Noise cancellation in digitizing system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noise cancellation in digitizing system and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2418339