Data input or output apparatus incorporating functional testing

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4464722
SERIAL NO

06273549

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

For functional testing, all electromechanical elements of a data input or output apparatus are individually and successively activated. The current supplied by a power supply is measured at least at one instant and the measurement value is compared with a reference value. Thus, the power supply lead need include only a (possibly switchable) measuring element and a customary A/D converter and possibly a measuring range controller, the further functional testing being realized by means of the digital units already present. Due to the small number of elements on the one hand, the reliability of the apparatus is not affected to any significant degree, while on the other hand the functional testing is thus realized in a very inexpensive manner.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
U S PHILIPS CORPORATION 100 E 42ND ST NEW YORK NY 10017 A CORP OF DENY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Von, Osten Reimer Siegen, DE 1 11

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation