Security system for portable electrical devices

• US 20030083044A1
• Filed: 10/22/2002
• Published: 05/01/2003
• Est. Priority Date: 10/25/2001
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Falck, Thomas, Schreyer, Oliver, Maass, Henning
• Application Number:
  US10/277,584
• Publication Number:
  US 20030083044A1
• Time in Patent Office: Days
• US Class Current: 455/411
• CPC Class Codes: G08B 13/1427 with transmitter-receiver for distance detection
• CPC Class Codes: G08B 21/0213 System disabling if a separation threshold is exceeded disabling electrical appliances in case of unplugging G08B13/1409
• CPC Class Codes: G08B 21/0216 Alarm cancellation after generation
• CPC Class Codes: G08B 21/0227 System arrangements with a plurality of child units

Abstract

The invention relates to a security system for portable devices (1 to 3). The security system consists of at least one portable transmitter unit (5), at least one portable receiver unit (6) and a reaction unit (7). The transmitter unit (5) regularly transmits a signal which is regularly received by the receiver unit (6) within a range of the signal. If the receiver unit (6) does not receive a signal, the reaction unit (7) generates a warning signal and/or activates a blocking mode, which renders a portable device to be protected (1 to 3) unusable.

Claims

1. A security system for portable devices (1 to 3, 8), consisting of at least a portable transmitter unit (5) and at least a portable receiver unit (8), in which each transmitter unit (5) is provided for the regular transmission of a signal, each receiver unit (6) is provided, within a range of the signal, for the regular reception of the signal transmitted by the transmitter unit (5), and a reaction unit (7) is provided for generating a warning signal and/or for activating a blocking mode, which renders a portable device to be protected (1 to 3, 8) unusable if the receiver unit (6) does not receive a signal.

2. A security system as claimed in claim 1, characterized in that a short-distance transmitter integral with the portable transmitter unit (5) is provided for generating the signal.

3. A security system as claimed in claim 1, characterized in that the signal is a short-distance signal operating under the Bluetooth Standard.

4. A security system as claimed in claim 1, characterized in that an identification number is provided in the signal for identification of the security system.

5. A security system as claimed in claim 1, characterized in that the transmitter unit (5) is a transponder.

6. A portable device (1 to 3) comprising:

a short-range receiver (6) which is provided for the regular reception of a signal emitted by a portable transmitter unit (5) of a security system, and

a reaction unit (7) for generating a warning signal and/or for activating a blocking mode which renders the portable device unusable if the short-range receiver does not receive any signal.

7. A security unit (9) comprising:

a receiver unit (6) for the regular reception of the signal emitted by a transmitter unit (5), and

a reaction unit (7) for generating a warning signal is the receiver unit (6) does not receive a signal.

8. A method for securing portable devices (1 to 3, 8) in which:

a signal is regularly emitted by at least one portable transmitter unit (5),

the signal is regularly received by at least one receiver unit (6), and

a warning signal is generated and/or a blocking mode rendering a portable device (1 to 3, 8) unusable is activated if the receiver unit (6) does not receive any signal.