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US 6,636,785 B2Granted
Communications control apparatus and method for automotive vehicle
AssigneeNissan Motor Co., Ltd.
InventorsKoichi Kuroda, Takuo Ishiwaka, Toru Takagi, Susumu Fujita
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Abstract
In communications control apparatus and method for an automotive vehicle, a buffer enabling quantity by which data of the requested content is enabled to be buffered into a receiving buffer during a vehicular run on the traveling scheduled route is calculated using a traveling time and a communication speed; and a capacity of the receiving buffer is set according to a calculated result of the buffer enabling quantity calculation described above and an upper limit value of the receiving buffer capacity, data on a requested content being downloaded onto the receiving buffer whose capacity is set.
Claims20
A communications control apparatus for an automotive vehicle, comprising:
- a road map storing section that stores a road map data;
- an electromagnetic wave environmental data storing section that stores an electromagnetic wave environmental data;
- a vehicular position retrieving section that retrieves a position of the vehicle;
- a traveling time predicting section that predicts a traveling time for which the vehicle travels on a traveling scheduled route using the road map data;
- a communication speed predicting section that predicts a communication speed when the vehicle travels on the traveling scheduled route using the electromagnetic wave environmental data;
- a playback speed retrieving section that retrieves a playback speed of a requested content;
- a buffer enabling quantity calculating section that calculates a buffer enabling quantity by which data of the requested content is enabled to be buffered into a receiving buffer during a vehicular run on the traveling scheduled route using the traveling time obtained from the traveling time predicting section and the communication speed obtained from the communication speed predicting section;
- and
- a receiving buffer setting section that sets a capacity of the receiving buffer according to a calculated result of the buffer enabling quantity calculating section and an upper limit value of the receiving buffer capacity, the data of the requested content being downloaded onto the receiving buffer whose capacity is set by the receiving buffer setting section.
6 more elements
A communications control apparatus for an automotive vehicle, comprising:
- road map storing means for storing a road map data;
- electromagnetic wave environmental data storing means for storing an electromagnetic wave environmental data;
- vehicular position retrieving means for retrieving a position of the vehicle;
- traveling time predicting means for predicting a traveling time for which the vehicle travels on a traveling scheduled route using the road map data;
- communication speed predicting means for predicting a communication speed when the vehicle travels on the traveling scheduled route using the electromagnetic wave environmental data;
- playback speed retrieving means for retrieving a playback speed of a requested content;
- buffer enabling quantity calculating means for calculating a buffer enabling quantity by which data of the requested content is enabled to be buffered into a receiving buffer during a vehicular run on the traveling scheduled route using the traveling time obtained from the traveling time predicting means and the communication speed obtained from the communication speed predicting means;
- and
- receiving buffer setting means for setting a capacity of the receiving buffer according to a calculated result of the buffer enabling quantity calculating means and an upper limit value of the receiving buffer capacity, the data of the requested content being downloaded onto the receiving buffer whose capacity is set by the receiving buffer setting means.
6 more elements
A communications control method for an automotive vehicle, comprising:
- storing a road map data;
- storing an electromagnetic wave environmental data;
- retrieving a position of the vehicle;
- predicting a traveling time for which the vehicle travels on a traveling scheduled route using the road map data;
- predicting a communication speed when the vehicle travels on the traveling scheduled route using the electromagnetic wave environmental data;
- retrieving a playback speed of a requested content;
- calculating a buffer enabling quantity by which data of the requested content is enabled to be buffered into a receiving buffer during a vehicular run on the traveling scheduled route using the traveling time obtained during the traveling time predicting and the communication speed obtained during the communication speed predicting;
- and
- setting a capacity of the receiving buffer according to a calculated result of the buffer enabling quantity calculating section and an upper limit value of the receiving buffer capacity, the data of the requested content being downloaded onto the capacity set receiving buffer.
6 more elements
Dependencies are inferred from the claim text.