US Patent No. 9,267,318

METHOD AND APPARATUS FOR PROVIDING AN INDICATION OF MOVEMENT, PARTICULARLY FOR RECOGNITION OF BLOCKING IN A LOCKING SYSTEM


Patent No. 9,267,318
Issue Date February 23, 2016
Title Method And Apparatus For Providing An Indication Of Movement, Particularly For Recognition Of Blocking In A Locking System
Inventorship Zoltan Ersek, Stuttgart (DE)
Janos Markus, Dunaharaszti (HU)
Assignee Robert Bosch GmbH, Stuttgart (DE)

Claim of US Patent No. 9,267,318

1. A method for providing an indication of movement from a sensor signal of a position transmitter (9), the indication of movement indicating a speed, the sensor signal from the position transmitter (9) comprising a plurality of edges, the plurality of edges being alternating rising edges and falling edges, each rising or
falling edge of the plurality of edges being generated by the sensor following a movement over a particular travel range,
the method comprising:
determining (S1) a pulse duration (dT) as an interval of time between a most recent two edges of the plurality of edges of the sensor signal;

providing (S4, S6) the indication, when a time period corresponding to the pulse duration (dT) has elapsed since the most recent edge of the
sensor signal;

wherein the indication is provided faster than an interval of time that would elapse between edges of the sensor signal at
a predefined maximum speed.