System and method for supervised downloading of broadcast data

• US 6,629,284 B1
• Filed: 10/28/1999
• Issued: 09/30/2003
• Est. Priority Date: 10/28/1999
• Status: Expired due to Fees

• Current Assignee: Pendragon Wireless LLC (Pendrell Corporation)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Leermakers, Rene
• Primary Examiner(s): Chung, Phung M.
• Assistant Examiner(s): Torres, Joseph D.
• Application Number:
  US09/428,767
• Time in Patent Office: 1,433 Days
• Field of Search: 714/748, 714/752
• US Class Current: 714/748
• CPC Class Codes: H04H 20/91 broadcasting computer programmes
• CPC Class Codes: H04H 2201/30 characterised by the use of a return channel, e.g. for collecting users' opinions, for returning broadcast space/time information or for requesting data
• CPC Class Codes: H04H 2201/37 via a different channel
• CPC Class Codes: H04H 60/11 Arrangements for counter-measures when a portion of broadcast information is unavailable
• CPC Class Codes: H04H 60/82 the transmission system being the Internet
• CPC Class Codes: H04H 60/94 Telephonic networks for accessing the Internet H04H60/84
• CPC Class Codes: H04L 1/1809 Selective-repeat protocols
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint

Abstract

There is disclosed a data processing system for receiving at least one of a user data file and an application program wirelessly transmitted from a central server. The data processing system comprises an RF transceiver for receiving in a forward channel blocks of data transmitted by the central server and transmitting to the central server in a reverse channel at least one of user input data and user commands. The blocks of data comprise the user data file and the application program. The data processing system further comprises a download controller for monitoring the received blocks of data and detecting therein corrupted data associated with a first block of data. The download controller, in response to the detection of the corrupted data, transmits to the central server via a wireline network a retransmission request capable of causing the central server to retransmit the first block of data.

Claims

1. A data processing system capable of receiving at feast one of a user data file and an application program wirelessly transmitted from a central server, said data processing system comprising:

an RF transceiver capable of contemporaneously;

receiving in a first forward channel blocks of data transmitted by said central server

receiving in a second forward channel other data transmitted by said central server, and

transmitting to said central server in a reverse channel at least one of user input data and user commands,

wherein said blocks of data comprise said at least one of a user data file and said application program; and

a download controller capable of

monitoring said received blocks of data and

detecting therein corrupted data associated with a first block of data,

wherein said download controller, in response to said detection of said corrupted data,

transmits to said central server a retransmission request

causing said central server to retransmit said first block of data as the other data in the second forward channel,

wherein said second forward channel is a separate transmission channel from said first forward channel.

2. The data processing system set forth in claim 1 wherein said central server retransmits said first block of data via a wireline network.

3. The data processing system set forth in claim 1 wherein

said download controller is capable of detecting an omitted block of data from said received block of data.

4. The data processing system set forth in claim 3 wherein

said download controller, in response to said detection of said omitted block of data, transmits to said central server via a wireline network a retransmission request capable of causing said central server to retransmit said omitted block of data as the other data in the second forward channel.

5. The data processing system set forth in claim 4 wherein

said central server retransmits said omitted block of data via a wireline network.

6. The data processing system set forth in claim 1 wherein

said central server intermittently transmits said application program in said forward channel.

7. The data processing system set forth in claim 1 wherein

said second forward channel is a publicly switched telephone network.

8. The data processing system set forth in claim 1 wherein

said second forward channel is the Internet.

9. For use in a data processing system, a method of downloading at least one of a user data file and an application program from a central server, the method comprising:

receiving in a first forward channel blocks of data wirelessly transmitted by the central server, wherein the blocks of data comprise the at least one of a user data file and the application program;

transmitting to the central server in a reverse channel at least one of user input data and user commands;

monitoring the received blocks of data and detecting therein corrupted data associated with a first block of data;

in response to the detection of the corrupted data, transmitting to the central server a retransmission request causing the central server to retransmit the first block of data via a second forward channel, wherein

said second forward channel is a separate transmission channel from said first forward channel that is configured to allow cotemporaneous transmissions from the central server via the first and second forward channels.

10. The method set forth in claim 9 wherein

the central server retransmits the first block of data via a wireline network.

11. The method set forth in claim 9 further including

detecting an omitted block of data from the received blocks of data.

12. The method set forth in claim 11 further including in response to the detection of the omitted block of data,

transmitting to the central server via a wireline network a retransmission request capable of causing the central server to retransmit the omitted block of data.

13. A data processing server capable of transmitting at least one of a user data file and an application program wirelessly, said server comprising:

an RF transceiver capable of contemporaneously;

transmitting blocks of data in a first forward channel,

transmitting other data in a second forward channel and

receiving in a reverse channel at least one of user input data and user commands,

wherein said blocks of data comprise said at least one of a user data file and said application program; and

a download controller capable of

monitoring said reverse channel and

detecting therein a retransmission request associated with a first block of data,

wherein said download controller, in response to said detection of said retransmission request,

verifies an identity of origin of said retransmission request and

retransmits said first block of data necessarily as the other data in the second forward channel,

wherein said second forward channel is a separate transmission channel from said first forward channel.

14. The server of claim 13 wherein said first block of data is retransmitted via a wireline network.

15. The server of claim 13 wherein said server intermittently transmits said application program in said forward channel.

16. The server of claim 13 wherein

said second forward channel is a publicly switched telephone network.

17. The server of claim 13 wherein

said second forward channel is the Internet.