Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2005-06-24
2008-11-11
Feild, Joseph (Department: 2627)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
C360S069000, C360S078040
Reexamination Certificate
active
07450332
ABSTRACT:
In an integrated free-fall detection device for a portable apparatus an acceleration sensor generates acceleration signals correlated to the components of the acceleration of the portable apparatus along three detection axes. A dedicated purely hardware circuit connected to the acceleration sensor generates a free-fall detection signal in a continuous way and in real-time. The free-fall detection signal has a first logic value in the event that the acceleration signals are simultaneously lower than a respective acceleration threshold, and is sent to a processor unit of the portable apparatus as an interrupt signal to activate appropriate actions of protection for the portable apparatus. Preferably, the acceleration sensor and the dedicated purely hardware circuit are integrated in a single chip and the acceleration sensor is made as a MEMS.
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European Search Report EP 05 10 5662; Aug. 23, 2006.
Lin Wen
Pasolini Fabio
Raasch William R.
Tronconi Michele
Feild Joseph
Hogan & Hartson LLP
Olson Jason
STMicroelectronics Inc.
STMicroelectronics S.R.L.
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