1. A method for controlling pressure in a compressed-air accumulator of a level-control system of a motor vehicle, the level-control system having a pressure-control apparatus including a computing device, the method comprising the steps of automatically determining an index pressure value using the computing device based on at least one of the relative level and the load of the vehicle, and adjusting accumulator pressure based on said index pressure value utilizing the pressure-control apparatus.
2. The method according to claim 1, wherein said index pressure value determined utilizing the computing device is higher the lower the relative level of the vehicle.
3. The method according to claim 1, wherein said index pressure value determined utilizing the computing device is higher the greater the load of the vehicle.
4. The method according to claim 1, wherein the level-control system includes at least one air spring bellows having variable bellows pressure, and wherein the step of automatically determining an index pressure value using the computing device includes using at least one parameter map specifying the dependence of bellows pressure on at least one of the relative level and the load of the vehicle for at least one of discrete relative levels and discrete loads.
5. The method according to claim 4, wherein the computing device determines the load of the vehicle by means of said at least one parameter map.
6. The method according to claim 4, wherein the computing device determines the load of the vehicle approximately by means of at least one of interpolation and extrapolation of values in said at least one parameter map when at least one of the relative level and the load of the vehicle do not correspond to said at least one of discrete relative levels and discrete loads in said at least one parameter map.
7. The method according to claim 1, wherein the pressure-control apparatus is a three-point controller.
8. The method according to claim 1, wherein the step of automatically determining an index pressure value using the computing device is based at least in part on a measured actual value of the relative level of the vehicle.
9. The method according to claim 1, wherein the step of automatically determining an index pressure value using the computing device is based at least in part on a predetermined index value of the relative level.
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 communicating a message between a transmitter and a receiver over a communications network having a plurality of channels, the method comprising the steps of:
partitioning the message into a plurality of blocks having a predetermined order;
converting the plurality of blocks into a plurality of packets;
selecting a subset of the plurality of packets;
detecting a presence of jamming pulses in at least one of the plurality of channels;
determining characteristics of the jamming pulses in the at least one of the plurality of channels wherein the determined characteristics define at least interstices between the jamming pulses;
transmitting the selected subset of the plurality of packets over at least one of the plurality of channels of the communications network within the interstices of the jamming pulses;
receiving the selected subset of the plurality of packets transmitted over the at least one of the plurality of channels;
estimating a quality of the at least one of the plurality of channels from at least the received selected subset of the plurality of packets; and
constructing an estimate of the message using at least the received selected subset of the plurality of packets and the estimated quality of the at least one of the plurality of channels.
2. The method of claim 1 wherein the transmitter comprises a multi-media source and the receiver comprises a satellite uplink device.
3. The method of claim 2 wherein the receiver further comprises a mobile satellite uplink device.
4. The method of claim 1 wherein the communications network uses a physical medium to carry the network signals.
5. The method of claim 4 wherein the physical medium is a railroad track.
6. The method of claim 1 wherein the communications network operates on an ISM band.
7. The method of claim 1 wherein the transmitter comprises a patient monitoring device.
8. The method of claim 1 wherein the step of selecting the subset of the plurality of packets comprises selecting the subset of the plurality of packets having a predetermined probability of error-free reception.
9. The method of claim 1 wherein the step of transmitting the selected subset of the plurality of packets uses orthogonal frequency division multiplexing (OFDM) communication techniques.
10. The method of claim 1 wherein the characteristics comprise at least jamming pulse duration and jamming pulse repetition time.
11. The method of claim 1 wherein the method further comprises processing the received selected subset of the plurality of packets to yield the plurality of blocks of the message.
12. The method of claim 11 wherein the step of constructing an estimate of the message comprises the step of ordering the plurality of blocks of the message to yield the plurality of blocks having the predetermined order.
13. A method transmitting a message over at least one of a plurality of channels of a communications network between a transmitter and a receiver, the method comprising the steps of:
detecting a presence of jamming pulses in the at least one of the plurality of channels;
determining characteristics of the jamming pulses in the at least one of the plurality of channels wherein the determined characteristics define at least interstices between the jamming pulses; and
transmitting the message over the at least one of the plurality of channels wherein the message is transmitted within the interstices of the jamming pulse determined from the step of determining characteristics of the jamming pulses.
14. The method of claim 13 further comprises the steps of:
partitioning the message into a plurality of blocks having a predetermined order;
converting the plurality of blocks into a plurality of packets;
selecting a subset of the plurality of packets; and
wherein the step of transmitting further comprises transmitting the selected subset of the plurality of packets over the at least one of the plurality of RF channels.
15. The method of claim 14 further comprising the steps of:
receiving the selected subset of the plurality of packets transmitted over the at least one of the plurality of RF channels;
estimating a quality of the at least one of the plurality of RF channels from at least received selected subset of the plurality of packets; and
constructing an estimate of the message using at least the received selected subset of the plurality of packets and the estimated quality of the at least one of the plurality of RF channels.
16. The method of claim 15 wherein the method further comprises processing the received selected subset of the plurality of packets to yield the plurality of blocks of the message.
17. The method of claim 16 wherein the step of constructing an estimate of the message comprises the step of ordering the plurality of blocks of the message to yield the plurality of blocks having the predetermined order.
18. The method of claim 14 wherein the step of selecting the subset of the plurality of packets comprises selecting the subset of the plurality of packets having a predetermined probability of error-free reception.
19. The method of claim 13 wherein the characteristics comprise at least jamming pulse duration and jamming pulse repetition time.
20. The method of claim 13 wherein the transmitter comprises a multi-media source and the receiver comprises a satellite uplink device.
21. The method of claim 14 wherein the receiver further comprises a mobile satellite uplink device.
22. The method of claim 13 wherein the communications network uses a physical medium to carry the network signals.
23. The method of claim 22 wherein the physical medium is a railroad track.
24. The method of claim 13 wherein the communications network operates on an ISM band.
25. The method of claim 13 wherein the transmitter comprises a patient monitoring device.