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:
Aug. 03, 1993
Filed:
Dec. 07, 1992
Motorola Inc., Schaumburg, IL (US);
Abstract
A digital timer apparatus incorporates a free running counter, an interval timer, a capture register, a pulse accumulator and holding logic. A rising or falling edge of an external signal causes the current contents of the free running counter to be loaded into the capture register and causes the pulse accumulator to be incremented. The output of the interval timer can cause the contents of the pulse accumulator and capture register to be stored into the holding logic. The timer apparatus is particularly well suited to performing tasks related to the determination of the speed of rotation of a rotating member and may be used, for instance, in detecting wheel rotational speeds in an anti-lock brake system or detecting shaft rotation speeds in an automatic transmission.