1. A data transfer control method comprising:
generating a first packet that specifies interface information;
transmitting the first packet from a host-side data transfer device to a target-side data transfer device through a serial bus;
analyzing the first packet received from the host-side data transfer device by a link controller of the target-side data transfer device;
generating interface signals based on the interface information of the first packet; and
outputting the interface signals to interface bus connecting the target-side data transfer device to a plurality of target devices.
2. The data transfer control method of claim 1,
the first packet including a port number field for setting port number,
the target-side data transfer device outputting the interface signals to a port of the plurality of target devices connected to the interface bus, and
the port being selected from among ports of the plurality of target devices based on the port number set in the first packet.
3. The data transfer control method of claim 1,
the interface signals including at least one of RGB interface signals for an RGB interface, MPU interface signals for an MPU interface, and serial interface signals for a serial interface.
4. The data transfer control method of claim 1,
providing an internal register in the host-side data transfer device,
setting the interface information in the internal register, the interface information specifying signal types of the interface signals output from the target-side data transfer control device, and
generating the first packet based on the interface information of the internal register.
5. The data transfer control method of claim 2,
the internal register including register transfer start register,
generating the first packet having the interface information set in the internal register when start of transfer has instructed by using the register transfer start register, and
transmitting the first packet from the host-side data transfer device to the target-side data transfer device.
6. The data transfer control method of claim 1,
generating a second packet containing data in a data field and transmitting the second packet to the target-side data transfer control device after transmitting the first packet to the target-side data transfer control device.
7. The data transfer control method of claim 1,
the interface information including at least one of a length of a horizontal synchronization period, a length of a display period in the horizontal synchronization period, a start position of the display period in the horizontal synchronization period, a pulse width of the horizontal synchronization signal, a length of a vertical synchronization period, a length of a display period in the vertical synchronization period, a start position of the display period in the vertical synchronization period, and a pulse width of the vertical synchronization signal.
8. The data transfer control method of claim 2,
the interface information including at least one of a length of a horizontal synchronization period, a length of a display period in the horizontal synchronization period, a start position of the display period in the horizontal synchronization period, a pulse width of the horizontal synchronization signal, a length of a vertical synchronization period, a length of a display period in the vertical synchronization period, a start position of the display period in the vertical synchronization period, and a pulse width of the vertical synchronization signal.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for the classification of an occupancy status of a vehicle seat, wherein a filtered class is associated to a specific seat occupancy status based on a plurality of successive readings of at least one parameter value of a seat occupancy sensor, said method comprising the steps of:
a. determining an actual value of a first parameter of said seat occupancy sensor and associating an actual class to said actual value of said first parameter,
b. storing said actual class in a buffer comprising several previously determined classes;
c. plotting a confidence parameter, said confidence parameter being indicative of the reliability of the actual class; and
d. setting said filtered class to equal
i) an average of the classes stored in said buffer, if said confidence parameter is smaller than a first confidence threshold value; and
ii) a previously determined filtered class, if said confidence parameter is greater than said first confidence threshold value.
2. The method according to claims 1, wherein in said step d., said updated filtered class is set to equal said previously determined filtered class, if said confidence parameter is equal to said first confidence threshold value.
3. The method according to claim 1, wherein said confidence parameter is decreased if said actual class differs from a previously determined filtered class.
4. The method according to claim 1, wherein said confidence parameter is increased if said actual class corresponds to said previously determined filtered class.
5. The method according to claim 1, further comprising the step of determining an actual value of a second parameter of said seat occupancy sensor, said second parameter being indicative of the quality of the first parameter, and if said second parameter is smaller than a predetermined quality threshold value,
a. increasing said confidence parameter, if said confidence parameter is smaller than said first confidence threshold, and
b. decreasing said confidence parameter, if said confidence parameter is greater than said first confidence threshold.
6. The method according to claim 5, wherein, if said second parameter is greater than said predetermined quality threshold value, said confidence parameter is increased if said actual class corresponds to said previously determined filtered class.
7. The method according to claim 1, further comprising the step of setting a first flag if a parameter value of said seat occupancy sensor indicates a non-human occupancy and, if said first flag is set,
a. increasing said confidence parameter, if said confidence parameter is smaller than a second confidence threshold value, said second threshold value being greater than said first threshold value, and
b. decreasing said confidence parameter, if said confidence parameter is greater than said second confidence threshold.
8. The method according to claim 1, further comprising the step of setting a second flag if a parameter value of said seat occupancy sensor indicates that said occupancy partially occurs outside an active sensor area, and, if said second flag is set, decreasing said confidence parameter if said confidence parameter is greater than said second confidence threshold.
9. The method according to claim 1, wherein said first parameter is indicative of the weight of a passenger or an object occupying said seat.
10. The method according to claim 1, wherein said first parameter is indicative of the width of the contact surface of a passenger or an object occupying said seat.
11. The method according to claim 1, further comprising the step of setting a third flag indicative of an occupancy of the seat, wherein said steps a. to d. are executed only if said third flag is set.
12. A Method for the classification of an occupancy status of a vehicle seat, wherein a filtered class is associated to a specific seat occupancy status based on a plurality of successive readings of at least one parameter value of a seat occupancy sensor, said method comprising the steps of:
a. determining an actual value of a first parameter of said seat occupancy sensor and associating an actual class to said actual value of said first parameter,
b. storing said actual class in a buffer comprising several previously determined classes;
c. plotting a confidence parameter, said confidence parameter being indicative of the reliability of the actual class; and
d. setting an updated filtered class to equal
i) an average of the classes stored in said buffer, if said confidence parameter is smaller than a first confidence threshold value; or
ii) a previously determined filtered class, if said confidence parameter is greater than said first confidence threshold value.
13. The method according to claim 12, wherein in said step d., said updated filtered class is set to equal said previously determined filtered class, if said confidence parameter is equal to said first confidence threshold value.
14. The method according to claim 12, wherein said confidence parameter is decreased if said actual class differs from a previously determined filtered class.
15. The method according to claim 12, wherein said confidence parameter is increased if said actual class corresponds to said previously determined filtered class.
16. The method according to claim 12, further comprising the step of determining an actual value of a second parameter of said seat occupancy sensor, said second parameter being indicative of the quality of the first parameter, and, if said second parameter is smaller than a predetermined quality threshold value,
a. increasing said confidence parameter, if said confidence parameter is smaller than said first confidence threshold, and
b. decreasing said confidence parameter, if said confidence parameter is greater than said first confidence threshold.
17. The method according to claim 16, wherein, if said second parameter is greater than said predetermined quality threshold value, said confidence parameter is increased if said actual class corresponds to said previously determined filtered class.
18. The method according to claim 12, further comprising the step of setting a first flag if a parameter value of said seat occupancy sensor indicates a non-human occupancy and, if said first flag is set,
a. increasing said confidence parameter, if said confidence parameter is smaller than a second confidence threshold value, said second threshold value being greater than said first threshold value, and
b. decreasing said confidence parameter, if said confidence parameter is greater than said second confidence threshold.
19. The method according to claim 12, further comprising the step of setting a second flag if a parameter value of said seat occupancy sensor indicates that said occupancy partially occurs outside an active sensor area, and, if said second flag is set, decreasing said confidence parameter if said confidence parameter is greater than said second confidence threshold.
20. The method according to claim 12, wherein said first parameter is indicative of the weight of a passenger or an object occupying said seat.
21. The method according to claim 12, wherein said first parameter is indicative of the width of the contact surface of a passenger or an object occupying said seat.
22. The method according to claim 12, further comprising the step of setting a third flag indicative of an occupancy of the seat, wherein said steps a. to d. are executed only if said third flag is set.