Horology: time measuring systems or devices – Combined with disparate device
Patent
1995-09-26
1998-03-03
Miska, Vit W.
Horology: time measuring systems or devices
Combined with disparate device
368 21, 368 47, 340988, 3644441, 3644497, G04B 1922, G04C 1102, G08G 112, G06F 1550
Patent
active
057243166
ABSTRACT:
An audio entertainment
avigation system with updated time readings is provided especially for a mobile user. The navigation system receives GPS position information signals which are processed to determine current position latitude and longitude coordinates and direction of travel. A destination database includes a plurality of categorized destinations and corresponding destination position coordinates pertaining to the destinations. The destination database is stored on an interfacable memory card. A time change database is also included which contains time-related information such as time zone boundaries and special time change rules such as daylight saving time. The time-related information may be loaded into the system from an interfacable memory card. A time of day as referenced to a reference time and the date are also computed from the GPS signals. The time and date are compared with the time-related information so as to determine a current updated time and date which is used to periodically update the clock and may be displayed on a display. Also, a user may obtain a current time and date reading for a remote destination by entering the destination name or coordinates into the system.
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Delco Electronics Corporation
Funke Jimmy L.
Miska Vit W.
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