Wireless mobile device
View Patent ↗A wireless mobile device comprising a tuner for converting a received radio frequency signal to a base band signal or intermediate frequency signal and providing the base band signal or intermediate frequency signal to a receiver, wherein the receiver is arranged to provide received data associated with the base band signal or intermediate frequency signal to an application processor for storage in memory, wherein the application processor is arranged to extract the data from memory in an interleaved form and perform error correction on the interleaved data.
1. A wireless mobile device comprising:
a tuner for converting a received radio frequency signal to a base band signal or intermediate frequency signal and providing the base band signal or intermediate frequency signal to a receiver, the receiver arranged to identify multi protocol encapsulated forward error corrected frames and arranged to provide received data associated with the base band signal or intermediate frequency signal to an application processor, for storage in memory, wherein the application processor is arranged to extract the data from memory in an interleaved form and perform multiprotocol encapsulation-forward error correction(MPE-FEC) on the interleaved data that contain errors.
2. A wireless mobile device according to claim 1 , wherein the application processor is formed on a separate silicon chip to that of the receiver.
3. A wireless mobile device according to claim 1 , wherein the receiver identifies multi protocol encapsulated forward error corrected frames that contain errors by use of checksum values contained in the data stream.
4. A wireless mobile device according to claim 1 , wherein the receiver identifies multi protocol encapsulated forward error corrected frames that contain errors by means of redundancy built into the data stream on transport layers underneath an MPEG2 transport stream.
5. A wireless mobile device according to claim 1 , wherein the receiver is arranged to create associated error flags in the form of data elements in response to identifying MPE-FEC frames that contain errors.
6. A wireless mobile device according to claim 1 , wherein MPE-FEC frames and/or associated error flags are output from an output of the receiver over a high speed unidirectional bus to the application processor.
7. A wireless mobile device according to claim 1 , wherein in response to identifying MPE-FEC frames that contain errors the application processor extracts a part of the MPE-FEC frame in interleaved form from the memory.
8. A wireless mobile device according to claim 7 , wherein the application processor is arranged to execute a Reed-Solomon algorithm to perform MPE-FEC error correction on the part of the MPE-FEC frame.
9. A wireless mobile device according to claim 1 , wherein the received data is compliant with the digital video broadcasting handset DBV-H standard.
10. A wireless mobile device according to claim 1 , wherein the application processor includes a co-processor for performing the error correction.
11. A wireless mobile device according to claim 1 , wherein the application processor includes a digital signal processor for performing the error correction.
12. A wireless mobile device according to claim 1 , wherein the wireless mobile device is a radiotelephone.
13. A wireless mobile device according to claim 1 , wherein the wireless mobile device is a personal digital assistant.
14. A wireless mobile device according to claim 1 , wherein the wireless mobile device is a laptop.
15. A method for error correcting data received by a wireless mobile device comprising:
receiving a radio frequency signal;
converting the received radio frequency signal to a base band signal or an intermediate frequency signal;
providing the base band signal or intermediate frequency signal to a receiver for processing of the base band signal or intermediate frequency signal;
identifying multi protocol encapsulated forward error corrected frames;
passing data associated with the processed base band signal or intermediate frequency signal from the receiver to an application processor for storage in memory;
extracting the data from memory in an interleaved form; and
providing the interleaved data to the application processor to perform multiprotocol encapsulation-forward error correction (MPE-FEC) on the interleaved data that contain errors.
16. A method for error correcting data received by a wireless mobile device according to claim 15 , wherein the application processor is formed on a separate silicon chip to that of the receiver.
17. The method of claim 15 , wherein the wireless mobile device is a radiotelephone.
18. The method of claim 15 , wherein the wireless mobile device is a personal digital assistant.
19. The method of claim 15 , wherein the wireless mobile device is a laptop.
20. The method of claim 15 , wherein identifying multi protocol encapsulated forward error corrected frames comprises identifying multi protocol encapsulated forward error corrected frames that contain errors by use of checksum values contained in a data stream.