The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 1980
Filed:
Oct. 20, 1978
Thomas Skarvada, Woodland Hills, CA (US);
Crane Co., Chicago, IL (US);
Abstract
A wheel speed sensing system for a brake control system is characterized in that the periodic signal generated by a wheel speed transducer is used to trigger a series of digital signals having a frequency proportional to that of the periodic transducer signal. Clock signals are counted between a selected pair of digital signals to provide a digital measure of the time interval separating the digital signals and hence the period of the periodic signal. In a preferred embodiment the number of intervening digital signals separating the selected pair of digital signals is automatically chosen to maintain the time resolution of the measurement above a preselected value.