Title:
DISTRESS BEACON COMPRISING A THERMOSTATICALLY-CONTROLLED QUARTZ OSCILLATOR
Document Type and Number:
WIPO Patent Application WO/2005/109029
Kind Code:
A1
Abstract:
The invention relates to a radio communication beacon. According to the invention, the beacon employs an oscillator (OCXO) and is characterised in that it comprises a connection (INH) which can be used to inhibit the temperature regulation means inside the chamber (REG) either completely or partially, in order to reduce energy consumption. For beacons with two transmit channels, in which the frequency stability constraints are weaker on the second channel than the first, the temperature regulation means are inhibited for the periods between transmissions over the first channel, such that the oscillator operates in degraded mode (less stability) during transmission over the second channel. The invention is suitable for distress beacons that are used to locate the position of a ship or a person in distress by means of active communication with a satellite.
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Inventors:
TAROT JEAN-MARIE (FR)
MORIN ALEXIS (FR)
RICHARD GUY (FR)
MORIN ALEXIS (FR)
RICHARD GUY (FR)
Application Number:
PCT/EP2005/052053
Publication Date:
November 17, 2005
Filing Date:
May 04, 2005
Export Citation:
Assignee:
THALES SA (FR)
TAROT JEAN-MARIE (FR)
MORIN ALEXIS (FR)
RICHARD GUY (FR)
TAROT JEAN-MARIE (FR)
MORIN ALEXIS (FR)
RICHARD GUY (FR)
International Classes:
G01S1/08; H03L1/02; H04B1/034; (IPC1-7): G01S1/08; H04B1/034
Domestic Patent References:
| WO2002027915A1 | 2002-04-04 |
Foreign References:
| US6501340B1 | 2002-12-31 | |||
| US6075979A | 2000-06-13 | |||
| US5204975A | 1993-04-20 |
Attorney, Agent or Firm:
Guerin, Michel (31/33 Avenue Aristide Briand, Arcueil Cedex, FR)
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