ATSC MOBILE RECEPTION THROUGH OPTIMAL PLACEMENT OF MOBILE SENSITIVE PACKETS
A method for producing data frames by the optimal placement of mobile sensitive data packets in the data frame that has particular application for transmitting mobile data to be received by portable consumer electronics devices and/or moving vehicles. The method includes forming the data frame by inserting the mobile data in the data frame just after a frame sync and before the broadcast data.
1 . A method for transmitting broadcast data frames, said method comprising:
forming the data frame to include mobile data to be received by a moving receiver and broadcast data to be received by a non-moving receiver, wherein the mobile data is inserted between a frame sync and the broadcast data in the data frame; and
transmitting the data frame to the moving receiver.
2 . The method according to claim 1 wherein the moving receiver is on a vehicle or a portable consumer electronics device.
3 . The method according to claim 2 wherein the mobile data is selected from the group comprising traffic information, weather information, driver information, video, audio and file transmissions.
4 . The method according to claim 1 wherein forming the data frame includes processing the broadcast data using a data randomizer, a Reed-Solomon encoder and a data interleaver, and multiplexing the frame sync, the broadcast data and the mobile data using a data multiplexer.
5 . The method according to claim 1 wherein the data frame is an advanced television standards committee (ATSC) compliant data frame.
6 . The method according to claim 5 wherein the ATSC compliant data frame is transmitted using an ATSC digital television system.
7 . The method according to claim 1 wherein the mobile data is placed within the data frame so that it is transmitted within 1.5 milliseconds of the frame sync.
8 . An advanced television standards committee (ATSC) data frame, said ATSC data frame comprising:
broadcast data;
a frame sync; and
mobile data, wherein the mobile data is inserted between the frame sync and the broadcast data in the data frame.
9 . The ATSC data frame according to claim 8 wherein the data frame is received by a receiver on a vehicle or a portable consumer electronics device.
10 . The ATSC data frame according to claim 9 wherein the mobile data is selected from a group comprising traffic information, weather information, driver information, video, audio and file transmissions.
11 . The ATSC data frame according to claim 8 wherein the ATSC data frame is formed by processing the broadcast data using a data randomizer, a Reed-Solomon encoder and a data interleaver, and multiplexing the frame sync, the broadcast data and the mobile data by a data multiplexer.
12 . The ATSC data frame according to claim 8 wherein the ATSC data frame is transmitted by an ATSC digital television system.
13 . A system for transmitting a data frame, said system comprising:
a data multiplexer that multiplexes broadcast data, a frame sync and mobile data to form the data frame, wherein the mobile data is placed between the frame sync and the broadcast data in the data frame;
a signal modulator for modulating the data frame onto a carrier signal; and
an antenna for transmitting the modulated data frame to a moving receiver and non-moving receiver.
14 . The system according to claim 13 further comprising a data randomizer, wherein the data randomizer processes the broadcast data before the broadcast data is input into the data multiplexer.
15 . The system according to claim 13 further comprising a Reed-Solomon encoder, wherein the Reed-Solomon encoder processes the broadcast data before the broadcast data is input into the data multiplexer.
16 . The system according to claim 13 further comprising a data interleaver that interleaves the broadcast data before the broadcast data is input into the data multiplexer.
17 . The system according to claim 13 wherein the data frame is an advanced television standards committee (ATSC) data frame.
18 . The system according to claim 13 wherein the moving receiver is on a vehicle or a portable consumer electronics device.
19 . The system according to claim 18 wherein the mobile data is selected from a group comprising traffic information, weather information, driver information, video, audio and file transmissions.
20 . The system according to claim 13 wherein the mobile data is placed within the data frame so that it is transmitted within 1.5 milliseconds of the frame sync.