Recording apparatus that switches decoding methods between data received over the internet and data received over a broadcast network

• US 7,610,598 B2
• Filed: 10/07/2003
• Issued: 10/27/2009
• Est. Priority Date: 10/22/2002
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Aratani, Shuntaro, Fukuda, Tetsu, Mori, Shigeki, Miyamoto, Katsuhiro
• Primary Examiner(s): Koenig; Andrew Y
• Assistant Examiner(s): SMITH, JASMINE NICOLE
• Application Number:
  US10/679,334
• Publication Number:
  US 20040107449A1
• Time in Patent Office: 2,212 Days
• Field of Search: 725/109, 725/110, 725 32- 36, 725/51, 725/112
• US Class Current: 725/32
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4263 involving specific tuning arrangements, e.g. two tuners
• CPC Class Codes: H04N 21/44016 involving splicing one content stream with another content stream, e.g. for substituting a video clip
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/482 End-user interface for program selection broadcast systems using EPGs H04H60/72
• CPC Class Codes: H04N 21/6547 comprising parameters, e.g. for client setup
• CPC Class Codes: H04N 21/812 involving advertisement data advertising per se G06Q30/02
• CPC Class Codes: H04N 5/45 Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 7/16 Analogue secrecy systems; Analogue subscription systems
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

In order to switch the transmission medium between the Internet and broadcast waves, reception/playback of communication data received via first media, such as via the Internet from an external device, and broadcast data received via second media, such as via a broadcast network from a broadcast station, is switched.

Claims

1. A television receiving apparatus that receives data via a plurality of types of transmission media and that switches between the plurality of transmission media, comprising:

a first data receiving unit that receives communication data in accordance with an Internet communication protocol via the Internet from an external device;

a second data receiving unit that receives broadcast data via a broadcast network from a broadcast station, wherein the broadcast data includes event program data accompanied by a plurality of event messages;

a decoder that decodes, in accordance with a first decoding method, the communication data received via the Internet by the first data receiving unit and that decodes, in accordance with a second decoding method, the broadcast data received by the second data receiving unit, wherein the first decoding method and the second decoding method are different from one another;

a display control unit that, when the decoder decodes the communication data received via the Internet, controls to display the decoded communication data on a display, and when the decoder decodes the broadcast data received from the broadcast station, controls to display the received broadcast data on the display;

a memory unit that stores the event program data received by the second data receiving unit; and

a control unit that, when the decoder is decoding the communication data received via the Internet in accordance with the first decoding method, and a first event message that accompanies the event program data is received by the second receiving unit, switches the decoder in response to the first event message from decoding the communication data to decoding the event program data read from the memory unit so as to display the event program by the display control unit on the display, and when a second event message that accompanies the event program data is received by the second receiving unit, switches the decoder in response to the second event message from decoding the event program data to decoding the communication data received via the Internet so that the decoded communication data is displayed by the display control unit on the display.

2. A receiving apparatus according to claim 1, wherein the first event message indicates that a commercial message starts or indicates that news content starts, and the second event message indicates that the commercial message ends or indicates that the news content ends.

3. A receiving apparatus according to claim 1, wherein the receiving apparatus further includes a recording unit for recording information on communication data of a program;

in response to an event message indicating that the program ends, the first data receiving unit interrupts reception of the communication data of the program; and

when a playback request of the program is made again, the first data receiving unit receives the remaining communication data of the program from the external device based on the information on the communication data of the program recorded in the recording unit.

4. A receiving apparatus according to claim 3, wherein the information on the communication data of the program includes identification information of the program and a playback duration of the program.

5. The television receiving apparatus according to claim 1, wherein the broadcast data comprises a streaming content selection program for selecting streaming content, and the communication data comprises streaming content data corresponding to a streaming content selected by a user from the broadcast streaming content selection program.

6. The television receiving apparatus according to claim 1, wherein the control unit still interprets data-broadcasting data included in the broadcast data received by the second data receiving unit, even when decoding the communication data and displaying the decoded communication data, in order to extract at least one of the first and the second event message from the data-broadcasting data.

7. A receiving method for a television receiving apparatus that receives data via a plurality of transmission media and that switches between the plurality of transmission media, the method comprising the steps of:

a first data receiving step of receiving, by a first data receiving unit, communication data in accordance with an Internet communication protocol via the Internet from an external device;

a second data receiving step of receiving, by a second data receiving unit, broadcast data via a broadcast network from a broadcast station, wherein the broadcast data includes event program data accompanied by a plurality of event messages;

a decoding step of a decoder decoding, in accordance with a first decoding method, the communication data received via the Internet by the first receiving unit, and decoding, in accordance with a second decoding method, the broadcast data received by the second data receiving unit, wherein the first decoding method and the second decoding method are different from one another;

a display control step of, when the decoder decodes the communication data received via the Internet, controlling to display the decoded communication data on a display, and when the decoder decodes the broadcast data received from the broadcast station, controlling to display the received broadcast data on the display;

a storing step of storing, in a memory unit, the event program data accompanied with an event message received by the second receiving unit in the broadcast data; and

a control step of, when the decoder is decoding the communication data received via the Internet in accordance with the first decoding method, and a first event message that accompanies the event program data is received by the second receiving unit, switching the decoder in response to the first event message from decoding the communication data to decoding the event program data read from the memory unit so as to display the event program by the display control step on the display, and when a second event message that accompanies the event program data is received by the second receiving unit, switching the decoder in response to the second event message from decoding the event program data to decoding the communication data received via the Internet so that the decoded communication data is displayed by the display control step on the display.