Digital broadcasting receiver and method of controlling the same

• US RE41,707 E1
• Filed: 08/31/2006
• Issued: 09/14/2010
• Est. Priority Date: 06/10/1998
• Status: Expired due to Fees

• Current Assignee: Funai Electric Co., Ltd.
• Original Assignee: Funai Electric Co., Ltd.
• Inventors: Funakoshi, Hideaki
• Primary Examiner(s): Kelley; Christopher
• Assistant Examiner(s): BROWN, RUEBEN M
• Application Number:
  US11/513,426
• Time in Patent Office: 1,475 Days
• Field of Search: 348/398.1, 348/385.1, 348/389.1, 725/118, 725 37- 38, 725/126
• US Class Current: 725/118
• CPC Class Codes: H04N 21/4221 Dedicated function buttons, e.g. for the control of an EPG, subtitles, aspect ratio, picture-in-picture or teletext
• CPC Class Codes: H04N 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4347 Demultiplexing of several video streams
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/4383 Accessing a communication channel
• CPC Class Codes: H04N 21/4405 involving video stream decryption
• CPC Class Codes: H04N 21/482 End-user interface for program selection broadcast systems using EPGs H04H60/72
• CPC Class Codes: H04N 5/4401 for the reception of a digital modulated video signal
• CPC Class Codes: H04N 5/445 for displaying additional information H04N5/50 takes precedence
• CPC Class Codes: H04N 5/46 for receiving on more than one standard at will deflecting circuits of multi-standard receivers H04N3/27
• CPC Class Codes: H04N 7/015 High-definition television systems

Abstract

A digital broadcasting receiver capable of receiving HD (High Definition) broadcasting, SD (Standard Definition) broadcasting and the like. In the digital broadcasting receiver, a digital broadcasting signal subjected to demodulation is separated/divided in a transport unit before being supplied to decoders. Data on a packet ID included in the digital broadcasting signal is outputted from the transport unit. An MPU determines HD broadcasting or SD broadcasting according to the data on the packet ID and when the MPU determines the SD broadcasting, it instructs the transport unit to have a set subchannel displayed and also instructs an OSD control unit to make an OSD of the subchannel.

Claims

1. A digital broadcasting receiving comprising:

a transport unit for separating/dividing a digital broadcasting signal that has been subjected to demodulation in order to output the separated/divided digital broadcasting signal toward a decoder;

a memory unit for storing a relationship of each of a plurality of subchannels of multichannel broadcasting to each of a plurality of packet IDs in a table wherein said subchannels are defined on a standard definition broadcasting basis;

a broadcast detecting unit for detecting one of one-channel broadcasting and said multi-channel broadcasting according to a packet ID which is included in the digital broadcasting signal and has been inputted to the broadcast detecting unit from said transport unit;

a subchannel control unit for controlling said transport unit so that when a result detected by said broadcast detecting unit indicates the multi-channel broadcasting, a predetermined packet ID of a set subchannel is read out of the table; and

a broadcasting signal including a predetermined packet ID is outputted; and

a setting unit for setting said set subchannel to be initially displayed when the one-channel broadcasting is switched to the multi-channel broadcasting, and a recording unit for holding the subchannel set via said setting unit, wherein said subchannel control unit controls said transport unit so that when the result detected by said broadcast detecting unit indicates the multi-channel broadcasting, a broadcasting signal including a packet ID corresponding to the subchannel held in said recording unit is outputted.

2. The digital broadcasting receiver as claimed in claim 1, wherein said subchannel control unit controls said transport unit so that when the result detected by said broadcast detecting unit indicates the multi-channel broadcasting, the broadcasting signal including the packet ID corresponding to the subchannel held in said recording unit is outputted and then controls said transport unit so that when a subchannel selection key or channel up/down key provided in a receiver body or a remote controller is pressed, a broadcasting signal including a packet ID corresponding to a selected subchannel is outputted.

3. The digital broadcasting receiver as claimed in claim 1, wherein said subchannel control unit is arranged so that when said broadcasting detecting unit indicates that the one-channel broadcasting has been switched to the multi-channel broadcasting, an OSD of the subchannel of the broadcasting signal outputted from said transport unit is made.

4. A computer software product for performing a method of controlling a digital broadcasting receiver via control of a transport unit for separating/dividing a digital broadcasting signal subjected to demodulation in order to output a separated/divided digital broadcasting signal toward a decoder, and an OSD control unit or causing an OSD to be made by superimposing data on a broadcasting screen, the computer software product, comprising:

a computer readable medium having stored thereon computer program code segments comprising;

code for storing in a table a relationship of each of a plurality of subchannels of multi-channel broadcasting to each of a plurality of packet IDs, wherein said subchannels are defined on a standard definition broadcasting basis;

whether the digital broadcasting signal is transmitted for one-channel broadcasting or said multi-channel broadcasting on the basis of data on a packet ID included in the digital broadcasting signal from the transport unit;

instruct the code for instructing transport unit to read out from said table a predetermined packet ID of a set subchannel and to output a broadcasting signal including said predetermined packet ID when it is determined that the digital broadcasting signal is transmitted for the multi-channel broadcasting;

code for instructing said OSD control unit to make an OSD of a sub-channel corresponding to the packet ID; and

setting code for said set subchannel to be initially displayed when the one-channel broadcasting is switched to the multi-channel broadcasting, and holding the set subchannel, wherein when there is multi-channel broadcasting, outputting a broadcasting signal including a packet ID corresponding to the subchannel held in said recording.