Digital broadcast transmitter, receiver and method of receiving thereof

• US 20010038744A1
• Filed: 02/28/2001
• Published: 11/08/2001
• Est. Priority Date: 02/29/2000
• Status: Active Grant

• Current Assignee: Toshiba Visual Solutions Corporation (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Yamada, Masahiro, Hirota, Atsushi, Sakamoto, Noriya
• Granted Patent: US 7,254,312 B2
• Time in Patent Office: Days
• US Class Current: 386/94
• CPC Class Codes: H04H 60/17 on recording information
• CPC Class Codes: H04H 60/18 on copying information
• CPC Class Codes: H04N 2005/91328 the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
• CPC Class Codes: H04N 21/23473 by pre-encrypting
• 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 21/4542 Blocking scenes or portions of the received content, e.g. censoring scenes
• 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 21/47214 for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market stock exchange data over packet-switching network H04L12/1804; push services over packet-switching network H04L12/1859; notification of incoming messages in packet switching networks H04L51/224
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection
• CPC Class Codes: H04N 7/162 Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
• 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 receiver for the digital broadcasts with which an appropriate copy regulation is executed for a temporal recording. Regarding the temporal recording of the programs of the digital broadcasts, either of the signals of the system including at least the signals, which represent “recording permitted” or “recording prohibited”, is received as the temporal record control data and the record control is executed in accordance with the temporal record control data to execute the temporal recording of the received broadcast program or not to execute the temporal recording.

Claims

1. A digital broadcast transmitter, comprising:

a first transmitter transmitting digital broadcast programs;

a definer defining either one of signals including at least a signal representing permission/prohibition of temporal recording of digital broadcast programs as a temporal record control data; and

a second transmitter transmitting said temporal record control data associated with a broadcast program data.

2. A digital broadcast transmitter, comprising:

a first transmitter transmitting digital broadcast programs;

a definer defining either one of signals including at least a signal representing permission/prohibition of temporal recording of digital broadcast programs as a temporal record control data; and

a second transmitter for transmitting said temporal record control data which is added to a sequencing data for digital broadcast programs.

3. A digital broadcast transmitter as claimed in

claim 2

, wherein said sequencing data for digital broadcast programs is either of a PMT (Program Map Table), an EIT (Event Information Table) and an SDT (Service Definition Table).

4. A method for receiving digital broadcast programs comprising the steps of:

receiving either one of signals including at least a signal representing permission/prohibition of temporal recording of digital broadcast programs as the temporal record control data;

receiving the broadcast program associated with the received temporal record control data; and

controlling a permission or a prohibition of a temporal recording of the received broadcast programs in accordance with the temporal record control data.

5. A digital broadcast receiver, comprising:

a data receiver receiving either one of signals including at least a signal representing permission/prohibition of temporal recording of digital broadcast programs as the temporal record control data;

a program receiver receiving the broadcast program associated with the received temporal record control data; and

a controller controlling permission/prohibition of a temporal recording of the received broadcast programs in accordance with the temporal record control data.

6. A digital broadcast receiver according to

claim 5

, further comprising a recording device recording the received broadcast program, when the temporal recording according of the broadcast programs is permitted by the controller.

11. A digital broadcast receiver according to

claim 5

, wherein a determination of permission/prohibition of the temporal recording of the broadcast programs is executed depending on whether a replay request is directed or not before a termination of recording operations.

12. A digital broadcast receiver according to

claim 5

, wherein a determination of permission/prohibition of the temporal recording of the broadcast programs is executed depending on whether a replay request has been entered before a predetermined time or not.

13. A digital broadcast receiver according to

claim 5

, wherein a determination of permission/prohibition of the temporal recording of the broadcast programs is executed depending on whether the number of past replays is less than or more than a predetermined value.

7. A digital broadcast receiver, comprising:

a control data receiver for receiving either one of signals including at least a signal representing permission/prohibition of temporal recording of digital broadcast programs as a temporal record control data added to the sequencing data for digital broadcast programs;

a broadcast program receiver for receiving the broadcast program associated with the received temporal record control data; and

a controller for controlling permission/prohibition of a temporal recording of the received broadcast programs in accordance with the temporal record control data.

8. A digital broadcast receiver as claimed in

claim 7

, wherein said sequencing data for digital broadcast programs is either of a PMT (Program Map Table), an EIT (Event Information Table) and an SDT (Service Definition Table).

9. A digital broadcast receiver, comprising:

a broadcast program receiver for receiving the digital broadcast programs;

a control data receiver for receiving the record control data transmitted with a sense of the temporal record control data in accordance with the data for controlling associated with the recording of the received digital broadcast programs; and

a controller for controlling permission/prohibition of a temporal recording of the received broadcast programs in accordance with the temporal record control data.

10. A digital broadcast receiver, comprising:

a receiver for limiting receptions of digital broadcast programs;

a control data receiver for receiving a record control data transmitted with a sense of a control data associated with a temporal recording, in accordance with control data for recording of the digital broadcast programs obtained by the limited-reception, and

a controller for controlling permission/prohibition of a temporal recording of the received broadcast programs in accordance with the temporal record control data.