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:
May. 14, 1996
Filed:
Oct. 31, 1994
Anton Bachhuber, Langquaid, DE;
Christian Schneider, Regensburg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
Closure system remotely controllable by transmitter signals (I) for one or more locks (L) of one or more openings (T), having a portable transmitter (S) as key (S) for radiating the transmitter signals (I), namely the UNLOCK transmitter signals (I) which (I) initiate the unlocking (Z) of the relevant lock or locks (L), and/or the LOCK transmitter signals (I) which initiate the locking (Z) of these locks (L), having a receiver (E) which (E), if it is within range (W) of the transmitter (S), triggers a control signal (Z) after the reception of the transmitter signals (I), and having a locking element (B) which can be controlled by the control signal (Z), by means of which (B) the relevant lock (L) can be locked and/or unlocked. The receiver (E) monitors a parameter of at least individual ones of the received transmitter signals (I), such as their (I) power or field strength, and adjusts--at least from time to time--the range (W), namely the sensitivity of the receiver (E) and/or the transmitting power of the transmitter (S) in accordance with the parameter monitored.