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:
Nov. 27, 1979
Filed:
Jan. 16, 1978
Robert Bosch GmbH, Stuttgart, DE;
Abstract
To permit use of a simple transducer cooperating with a star-wheel, for example the starter gear or other gear on an internal combustion engine and having alternate magnetically responsive projections uniformly distributed around the circumference thereof, a counter is provided to count off a predetermined number of pulses derived from the transducer, the number of pulses being analyzed for their time duration to provide a single output pulse having a time duration corresponding to a predetermined number of teeth passing the transducer. A marker pulse derived from a separate marker element provides a reference. Signals representative of operating parameters of the engine are combined with the pulse having the length corresponding to the predetermined number of pulses, the resulting output being used to provide, upon comparison with a speed-responsive signal, an output, the time occurrence of which will cause triggering of the event, for example generation of a spark for an internal combustion engine.