Broadcast receiving apparatus and broadcast receiving method

Abstract

According to one embodiment, there is provided a broadcast receiving apparatus including an IP communication section which acquires, via a network, standard time information, time correction information obtained by delaying a broadcast signal of a specific broadcast channel by IP retransmission, and stream information, a time management section which obtains a broadcast time of the specific broadcast channel, based on the standard time information and the time correction information from the IP communication section, and a reservation management section which stores reservation information on a program of the specific broadcast channel, and then, in response to the broadcast time of the time management section, carries out reserved image recording of stream information acquired by the IP communication section responsive to the reservation information.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

A general architecture that implements the various feature of the invention will now be described with reference to the drawings. The drawings and the associated descriptions are provided to illustrate embodiments of the invention and not to limit the scope of the invention.

FIG. 1 is a block diagram depicting an example of a configuration of an IP retransmission system according to an embodiment of the present invention;

FIG. 2 is a block diagram depicting an example of a configuration of a broadcast receiving apparatus for receiving IP retransmission service according to an embodiment of the present invention;

FIG. 3 is a block diagram depicting an example of a detailed configuration of a broadcast receiving apparatus for receiving IP retransmission service according to an embodiment of the present invention;

FIG. 4 is a timing chart showing an example of a standard time T, a broadcast time T1, and a stream time T2 in a broadcast receiving apparatus according to an embodiment of the present invention;

FIG. 5 is a flow chart showing an example of a processing operation of obtaining a broadcast time T1 from a standard time T and a correction value T_A in a broadcast receiving apparatus according to an embodiment of the present invention;

FIG. 6 is a timing chart showing an example of a processing operation of obtaining a correction time T3 from a stream time T2 and a correction value T_A in a broadcast receiving apparatus according to an embodiment of the present invention; and

FIG. 7 is a flow chart showing an example of a processing operation of obtaining a correction time T3 from a stream time T2 and a correction value T_A in a broadcast receiving apparatus according to an embodiment of the present invention.

Claims

1. A broadcast receiving apparatus, comprising: an IP communication section which acquires, via a network, standard time information, time correction information obtained by delaying a broadcast signal of a specific broadcast channel by IP retransmission, and stream information;a time management section which obtains a broadcast time of the specific broadcast channel, based on the standard time information and the time correction information from the IP communication section; anda reservation management section which stores reservation information on a program of the specific broadcast channel, and then, in response to the broadcast time of the time management section, carries out reserved image recording of stream information acquired by the IP communication section responsive to the reservation information.

2. The broadcast receiving apparatus according to claim 1, wherein the time correction information also includes an internal error caused by an internal processing operation of the broadcast receiving apparatus.

3. The broadcast receiving apparatus according to claim 1, wherein the standard time acquired by the IP communication section is time information provided by NTP (Network Time Protocol).

4. A broadcast receiving apparatus, comprising: an IP communication section which acquires, via a network, stream information and time correction information obtained by delaying a broadcast signal of a specific broadcast channel by IP retransmission;a time management section which calculates a standard time, based on stream time information included in the stream information from the IP communication section and the time correction information; anda processing section which, based on the standard time information calculated by the time management section, carries out processing so as to use the calculated time information for a screen display of time or for a timing of a reservation operation of other than the specific broadcast channel.

5. The broadcast receiving apparatus according to claim 4, wherein the time correction information also includes an internal error caused by an internal processing operation of the broadcast receiving apparatus.

6. The broadcast receiving apparatus according to claim 1 or 4, wherein the time correction information is a value obtained by predetermined computation of delays, in a plurality of channels, generated by IP retransmission without being limited to the one broadcast channel.

7. A broadcast receiving method comprising: acquiring, via a network, standard time information, time correction information obtained by delaying a broadcast signal of a specific broadcast channel by IP retransmission, and stream information;obtaining a broadcast time of the specific broadcast channel, based on the standard time information and the time correction information; andstoring reservation information on a program of the specific broadcast channel, and then, in response to the broadcast time, carrying out reserved image recording of stream information responsive to the reservation information.

8. The broadcast receiving method according to claim 7, wherein the time correction information also includes an internal error caused by an internal processing operation of a broadcast receiving apparatus.