Apparatus and method for controlling recording operation

• US 20060083375A1
• Filed: 02/03/2005
• Published: 04/20/2006
• Est. Priority Date: 10/19/2004
• Status: Abandoned Application

• Current Assignee: Topfield Company Limited
• Original Assignee: Topfield Company Limited
• Inventors: Kim, Jong-Won
• Application Number:
  US11/049,835
• Publication Number:
  US 20060083375A1
• Time in Patent Office: Days
• US Class Current: 380/210
• CPC Class Codes: H04N 2005/91364 the video signal being scrambled
• CPC Class Codes: H04N 21/4263 involving specific tuning arrangements, e.g. two tuners
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/4405 involving video stream decryption
• CPC Class Codes: H04N 21/4408 involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection
• CPC Class Codes: H04N 7/1675 Providing digital key or authorisation information for generation or regeneration of the scrambling sequence pseudo-random number generators in general G06F7/58

Abstract

A record control apparatus for use in a broadcast signal receiver including a stream storage unit descrambles a scrambled record file, and records the descrambled record file. The apparatus includes: a broadcast stream record/reproduction controller for controlling recording/reproducing operations of a scrambled broadcast stream, and storing information indicative of a reproduction stop point when reproduction of the scrambled record broadcast stream is halted; a descrambler for descrambling a reproduced broadcast stream; a reproduction stream record/reproduction controller for controlling recording/reproducing operations of the broadcast stream descrambled by the descrambler; and a broadcast stream reproduction restarting request unit for requesting a reproduction restarting operation of the reproduction-halted broadcast stream from the reproduction stop point when the descrambler can be used to descramble the reproduction-halted record broadcast stream.

Claims

1. A record control method for use in a broadcast signal receiver including a stream storage unit comprising the steps of:

a) reproducing a scrambled record broadcast stream, and descrambling the reproduced broadcast stream using a descrambler;

b) recording the descrambled broadcast stream as a copy file;

c) stopping reproduction of the broadcast stream according to a user'"'"'s request, and storing information indicative of a stop point of the reproduction; and

d) starting reproduction of the reproduction-halted broadcast stream from the reproduction stop point to acquire a stream, descrambling the acquired stream using the descrambler, and recording the descrambled broadcast stream as a part of the copy file.

2. The method according to claim 1, wherein the step (d) is automatically performed when the descrambler can be used to descramble the reproduction-halted record broadcast stream.

3. The method according to claim 1, wherein the step (d) is performed in response to a reproduction restarting command of the reproduction-halted broadcast stream.

4. A record control method for use in a broadcast signal receiver capable of receiving a broadcast stream comprising the steps of:

a) receiving a scrambled broadcast stream, and recording the received scrambled broadcast stream in a stream storage unit;

b) descrambling, by a descrambler, the scrambled broadcast stream recorded in the stream storage unit according to a background processing method; and

c) recording the descrambled broadcast stream as a copy file.

5. A record control apparatus for use in a broadcast signal receiver including a stream storage unit comprising:

a broadcast stream record/reproduction controller for controlling recording/reproducing operations of a scrambled broadcast stream, and storing information indicative of a reproduction stop point when reproduction of the scrambled record broadcast stream is halted;

a descrambler for descrambling a reproduced broadcast stream;

a reproduction stream record/reproduction controller for controlling recording/reproducing operations of the broadcast stream descrambled by the descrambler; and

a broadcast stream reproduction restarting request unit for requesting a reproduction restarting operation of the reproduction-halted broadcast stream from the reproduction stop point when the descrambler can be used to descramble the reproduction-halted record broadcast stream.

6. The apparatus according to claim 5, wherein the broadcast stream reproduction restarting request unit receives a reproduction restarting command of the reproduction-halted broadcast stream from a user interface, and requests a reproduction restarting operation of the reproduction-halted broadcast stream from the reproduction stop point in response to the received reproduction restarting command.

7. The apparatus according to claim 5, wherein the broadcast signal receiver is indicative of a set top box (STB) capable of receiving a broadcast signal.

8. The apparatus according to claim 5, wherein the broadcast signal receiver is indicative of a set top box (STB) capable of selecting broadcast signals of different channels at the same time.

10. The apparatus according to claim 6, wherein the broadcast signal receiver is indicative of a set top box (STB) capable of receiving a broadcast signal.

11. The apparatus according to claim 6, wherein the broadcast signal receiver is indicative of a set top box (STB) capable of selecting broadcast signals of different channels at the same time.

9. A record control apparatus for use in a broadcast signal receiver including a stream storage unit comprising:

a broadcast stream record/reproduction controller for controlling recording/reproducing operations of a scrambled broadcast stream, and storing information indicative of a reproduction stop point when reproduction of the scrambled record broadcast stream is halted;

a descrambler for descrambling a reproduced broadcast stream;

a reproduction stream record/reproduction controller for controlling recording/reproducing operations of the broadcast stream descrambled by the descrambler; and

a broadcast stream reproduction restarting request unit for requesting a reproduction restarting operation of the scrambled record broadcast stream when the descrambler can be used to descramble the scrambled record broadcast stream according to a background processing method.