TIME SYNCHRONIZATION METHOD FOR VEHICLES HAVING NAVIGATION DEVICE
First Claim
1. A method of performing time synchronization using a navigation device, comprising:
- (a) performing time synchronization between a GPS satellite and a navigation device by receiving GPS signals by a navigation device from at least one GPS satellite;
(b) establishing an interface between the navigation device and a time-using device;
(c) setting conditions for transmitting time information to the navigation device; and
(d) performing time synchronization between the navigation device and the time-using device by transmission of time information from the navigation device to the time-using device.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a method of performing time synchronization using a navigation device. The method includes: (a) performing time synchronization between a GPS satellite and a navigation device by receiving GPS signals by a navigation device from at least one GPS satellite; (b) establishing an interface between the navigation device and a time-using device; (c) setting conditions for transmitting time information to the navigation device; and (d) performing time synchronization between the navigation device and the time-using device by transmission of time information from the navigation device to the time-using device.
-
Citations
23 Claims
-
1. A method of performing time synchronization using a navigation device, comprising:
-
(a) performing time synchronization between a GPS satellite and a navigation device by receiving GPS signals by a navigation device from at least one GPS satellite; (b) establishing an interface between the navigation device and a time-using device; (c) setting conditions for transmitting time information to the navigation device; and (d) performing time synchronization between the navigation device and the time-using device by transmission of time information from the navigation device to the time-using device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A time synchronization navigation system, comprising:
-
a navigation device receiving GPS signals from a GPS satellite so as to generate time information, and transmitting the time information; an interface used to transmit the time information between the navigation device and a time-using device; and the time-using device receiving the time information from the navigation device through the interface so as to use the time information. - View Dependent Claims (14, 15, 16, 17, 18)
-
-
19. A time synchronization navigation device, comprising:
-
a GPS signal receiving unit receiving GPS signals from a GPS satellite; a condition setting unit setting conditions receiving the GPS signals; a time information generating unit generating time information from the GPS signal; and a time information transmitting unit transmitting the generated time information to the outside.
-
-
20. A clock device, comprising:
-
a time information receiving unit receiving time information from a navigation device; a clock generating unit generating its own time information; and a controller operating so as to use time information from the clock generating unit when the time information receiving unit which uses the time information transmitted from the navigation device cannot receive the time information anymore. - View Dependent Claims (21, 22)
-
-
23. A time synchronization black box, comprising:
-
a time information receiving unit receiving time information from a navigation device; an event receiving unit receiving event information when a transporter has problems; a clock generating unit generating its own time information; and a controller using time information from the clock generating unit when the time information receiving unit which uses the time information transmitted from the navigation device cannot receive the time information anymore, and remembering the time information when the event receiving unit receives the event information.
-
Specification