Document Type and Number:
Japanese Patent JPS5037982
Kind Code:
A
Abstract:
A closed-loop sampled-data servomechanism wherein each sample of the aperiodic feedback signal from a digital transducer is tested to determine if it is credible or valid feedback information. If it is credible, the feedback sample is used as feedback information by the servomechanism. In addition, the valid sample is stored in a memory. Thus, the memory always contains the most recent valid feedback sample. If a particular feedback sample is not valid, the most recent prior valid feedback sample is obtained from the memory and is used by the servomechanism to construct a substitute for the current invalid feedback sample.
Application Number:
JP7792474A
Publication Date:
April 09, 1975
Filing Date:
July 09, 1974
Export Citation:
International Classes:
G05B9/02; G05B21/02; G05B23/02; G05D13/62; H02P7/285; (IPC1-7): G05B23/02; G05B21/00; G05D13/62