ELECTRONIC APPARATUS

PROBLEM TO BE SOLVED: To extend an executable time of a hot start.SOLUTION: Electronic apparatuses (1 and 1a) each hold an extended ephemeris based upon a GPS satellite signal together with its lifetime data. The electronic apparatus (1) sends an extended ephemeris EE and lifetime data LD that it ho...

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Bibliographische Detailangaben
1. Verfasser:	OTANI YOSHIYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To extend an executable time of a hot start.SOLUTION: Electronic apparatuses (1 and 1a) each hold an extended ephemeris based upon a GPS satellite signal together with its lifetime data. The electronic apparatus (1) sends an extended ephemeris EE and lifetime data LD that it holds to the other electronic apparatus (1a). The other electronic apparatus (1a) compares lifetime data LDa that it holds with the received lifetime data LD, and sends an extended ephemeris EEa and the lifetime data LDa that it hold back to the electronic apparatus (1) when the end of the extended ephemeris EEa that it holds is later than the end of the lifetime of the extended ephemeris EE. The electronic apparatus (1) having received the reply updates (replaces) the extended ephemeris and lifetime data that it holds with the received extended ephemeris EEa and the lifetime data LDa.