JP2004350038A

JP2004350038A - Broadcast receiving apparatus and broadcast receiving method

Info

Publication number: JP2004350038A
Application number: JP2003144920A
Authority: JP
Inventors: Akira Miyazawa; 明宮澤
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 2003-05-22
Filing date: 2003-05-22
Publication date: 2004-12-09
Anticipated expiration: 2023-05-22
Also published as: JP4138575B2

Abstract

【課題】この発明は、同一の３桁チャンネル番号の放送が複数受信可能な場合を考慮したアップダウン選局のルールを規定し、ユーザの要求に応じたアップダウン選局動作を実現することを可能とした放送受信装置及び放送受信方法を提供することを目的としている。
【解決手段】同じチャンネル番号０１１の付された放送チャンネルが複数受信される場合、それらのチャンネル番号０１１に各放送チャンネル毎に異なる枝番号（０），（１），（２）を付加する放送受信装置において、放送チャンネルのアップ選局及びダウン選局のいずれか一方が要求された状態で、チャンネル番号０１１順で、かつ、同一のチャンネル番号０１１については枝番号（０），（１），（２）順に選局動作を行なわせる。
【選択図】図４An object of the present invention is to define an up / down channel selection rule in consideration of a case where a plurality of broadcasts having the same three-digit channel number can be received, and realize an up / down channel selection operation according to a user request. It is an object of the present invention to provide a broadcast receiving apparatus and a broadcast receiving method that are enabled.
When a plurality of broadcast channels having the same channel number 011 are received, a broadcast in which different branch numbers (0), (1), and (2) are added to the channel numbers 011 for each broadcast channel. In the receiving apparatus, in a state where one of the up channel selection and the down channel selection of the broadcast channel is requested, the branch numbers (0), (1), and (2) are assigned to the same channel number 011 in the order of the channel numbers 011. (2) Select a channel in order.
[Selection diagram] Fig. 4

Description

【０００１】
【発明の属する技術分野】
この発明は、特に地上デジタル放送の受信に好適する放送受信装置及び放送受信方法に関する。
【０００２】
【従来の技術】
周知のように、近年では、テレビジョン放送のデジタル化が推進されている。そして、日本国内においては、ＢＳ（ＢｒｏａｄｃａｓｔｉｎｇＳａｔｅｌｌｉｔｅ）デジタル放送及び１１０度ＣＳ（ＣｏｍｍｕｎｉｃａｔｉｏｎＳａｔｅｌｌｉｔｅ）デジタル放送等の衛星デジタル放送だけでなく、地上デジタル放送も開始される運びとなっている。
【０００３】
この地上デジタル放送は、現行の地上アナログ放送の基盤を前提としているため、チャンネルのダイレクト選局のためのキーの数を１２個とする１２ポジションの概念や、日本全国を複数の地域に分割して各地域毎に放送局を設置する地域単位の概念が、その運用規程に盛り込まれている。
【０００４】
そして、各地域に存在する放送局は、番組情報とともに、自己の放送がどの地域向けの放送であるかを示す制御情報（地域識別）や、自己の放送チャンネルを１２ポジションのうちのどのポジションに割り当てるかを指定する制御情報（ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ）等を送信している。
【０００５】
また、地上デジタル放送では、個々の放送チャンネルが３桁の数字からなるチャンネル番号で区別されている。この３桁チャンネル番号は、上記した地域単位の概念に基づいて、同一地域内で同じ３桁チャンネル番号が重複することのないように規定されている。
【０００６】
ところが、この３桁チャンネル番号は、異なる地域間においては重複することがあり得るものとなっている。このため、越境地域では、自己の居住地域の放送以外に、隣接する地域の放送も視聴できるので、同一の３桁チャンネル番号の放送が複数受信される可能性が生じる。
【０００７】
このように同一３桁チャンネル番号の放送が複数受信される場合（正確にはｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄが重複した放送が複数受信可能な場合）、地上デジタル放送の運用規定では、受信機側の処理により、重複した３桁チャンネル番号に１桁の枝番号を自動的に割り振るようにしている。
【０００８】
この枝番号は、「０」から最大「９」まで付加することができる。この場合、ユーザの居住地域向けの放送（域内放送）に対して優先的に枝番号「０」が割り振られ、ユーザの居住地域外の放送（域外放送）に対して枝番号が「１」から順に割り振られるようになっている。
【０００９】
ここで、地上デジタル放送においては、放送チャンネルのアップダウン選局動作は、基本的に、３桁チャンネル番号を昇順または降順に順次選局していくことによって行なわれる。
【００１０】
しかしながら、上記のようにｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄが重複した放送が複数受信可能な場合、つまり、同一の３桁チャンネル番号の放送が複数存在する場合には、単純に３桁チャンネル番号を昇順または降順に順次選局していくアップダウン選局手法を採用することができないという問題が生じる。
【００１１】
特許文献１には、受信エリアから、予め記憶した受信地域対伝送パラメータ対応表を参照することにより、初期同期を速やかに成功させ、新たな伝送パラメータを取得できるようにした構成が開示されている。
【００１２】
また、特許文献２には、受信データから選局用のテーブルを作成しておき、チャンネルのアップまたはダウンの信号を受けたＣＰＵ（ＣｅｎｔｒａｌＰｒｏｃｅｓｓｉｎｇＵｎｉｔ）がテーブルを参照して現在表示中のチャンネルから次のチャンネルを選択するようにした構成が開示されている。
【００１３】
さらに、特許文献３には、ダイレクトでチャンネル番号が入力された場合に、入力された値と同じチャンネル番号が複数あると、それらを同時にユーザに提示して選択させるようにした構成が開示されている。
【００１４】
しかしながら、これらの特許文献１乃至３には、いずれも、上記したように、アップダウン選局において、同一の３桁チャンネル番号の放送が複数受信された場合の対策を施すことについては、何らの記載もなされていないものである。
【００１５】
【特許文献１】
特開２００２−２１８３３９号公報
【００１６】
【特許文献２】
特開２００１−１７７７７８号公報
【００１７】
【特許文献３】
特開２００２−９４８８９号公報
【００１８】
【発明が解決しようとする課題】
そこで、この発明は上記事情を考慮してなされたもので、同一の３桁チャンネル番号の放送が複数受信可能な場合を考慮したアップダウン選局のルールを規定し、ユーザの要求に応じたアップダウン選局動作を実現することを可能とした放送受信装置及び放送受信方法を提供することを目的とする。
【００１９】
【課題を解決するための手段】
この発明に係る放送受信装置は、それぞれにチャンネル番号の付された複数の放送チャンネルを選択的に受信するとともに、同じチャンネル番号の付された放送チャンネルが複数受信される場合、それらのチャンネル番号に各放送チャンネル毎に異なる枝番号を付加するものを対象としている。そして、放送チャンネルのアップ選局及びダウン選局のいずれか一方が要求された状態で、チャンネル番号順で、かつ、同一のチャンネル番号については枝番号順に選局動作を行なわせる選局制御手段を備えるようにしたものである。
【００２０】
また、この発明に係る放送受信方法は、それぞれにチャンネル番号の付された複数の放送チャンネルを選択的に受信するとともに、同じチャンネル番号の付された放送チャンネルが複数受信される場合、それらのチャンネル番号に各放送チャンネル毎に異なる枝番号を付加する方法を対象としている。そして、放送チャンネルのアップ選局が要求された状態で、チャンネル番号を昇順に切り替え、同一チャンネル番号が複数存在する場合には、その同一チャンネル番号の中で枝番号を昇順に切り替える工程と、放送チャンネルのダウン選局が要求された状態で、チャンネル番号を降順に切り替え、同一チャンネル番号が複数存在する場合には、その同一チャンネル番号の中で枝番号を降順に切り替える工程とを備えるようにしたものである。
【００２１】
上記のような構成及び方法によれば、放送チャンネルのアップ選局またはダウン選局時に、チャンネル番号順で、かつ、同一のチャンネル番号については枝番号順に選局動作を行なわせるというように、同一のチャンネル番号の放送が複数受信可能な場合を考慮したアップダウン選局のルールを規定し、ユーザの要求に応じたアップダウン選局動作を実現させることができる。
【００２２】
【発明の実施の形態】
以下、この発明の実施の形態について、図面を参照して詳細に説明する。図１は、地上デジタル放送の受信に対応するデジタルテレビジョン放送受信機を示している。
【００２３】
すなわち、デジタルアンテナ１１で受信された地上デジタル放送信号は、チューナ１２に供給されて所定の伝送チャンネルが選局された後、エラー訂正回路１３に出力される。
【００２４】
このエラー訂正回路１３は、チューナ１２から出力された受信信号に復調処理を施し、エラー訂正処理を行なった後、スクランブル制御回路１４に出力している。
【００２５】
このスクランブル制御回路１４は、入力された受信信号にスクランブル処理が施されている場合、そのスクランブルを解除するデスクランブル処理を施して、多重データ分離回路１５に出力する。この場合、スクランブル制御回路１４から多重データ分離回路１５に供給されるデータは、複数のチャンネル及び番組のデータを含む多重データである。
【００２６】
この多重データ分離回路１５は、受信信号のビットストリームに含まれる識別情報ＩＤに基づいてパケットを分離している。そして、この多重データ分離回路１５は、ＳＩ（ＳｅｒｖｉｃｅＩｎｆｏｒｍａｔｉｏｎ）情報の番組情報を分離すると、これらの番組情報をコントロール制御回路１６に供給するとともに、パケット毎の映像信号についてはＭＰＥＧ（ＭｏｖｉｎｇＰｉｃｔｕｒｅＥｘｐｅｒｔｓＧｒｏｕｐ）映像再生回路１７に供給し、音声信号についてはＭＰＥＧ音声再生回路１８に供給する。
【００２７】
このＭＰＥＧ映像再生回路１７は、入力された映像信号が圧縮符号化されたものであるため、この圧縮符号化データにデコード処理を施し、アナログの映像信号にして出力している。
【００２８】
また、上記コントロール制御回路１６は、多重データ分離回路１５から取得したＳＩ情報に基づいて、表示に要求されるＯＳＤ信号を生成し、ＯＳＤ回路１９に出力している。
【００２９】
そして、このＯＳＤ回路１９は、ＭＰＥＧ映像再生回路１７から出力された映像信号と、コントロール制御回路１６から供給されたＯＳＤ信号とを重畳して、ＣＲＴ（ＣａｔｈｏｄｅＲａｙＴｕｂｅ）２０に出力し、映像表示させる。
【００３０】
また、上記ＭＰＥＧ音声再生回路１８は、入力された音声信号が圧縮符号化されたものであるため、この音声信号にデコード処理を施し、デコード処理後のアナログの音声信号を出力している。そして、このＭＰＥＧ音声再生回路１８から出力される音声信号は、スピーカ２１に導かれて音声再生される。
【００３１】
ここで、このデジタルテレビジョン放送受信機は、その全ての動作を、コントロール制御回路１６によって統括的に制御されている。このコントロール制御回路１６は、図示しないＣＰＵ（ＣｅｎｔｒａｌＰｒｏｃｅｓｓｉｎｇＵｎｉｔ）を内蔵しており、リモートコントローラ２２から送出される操作情報を受信し、その操作内容が反映されるように、各回路部をそれぞれ制御している。
【００３２】
図２は、上記リモートコントローラ２２の外観を示している。このリモートコントローラ２２には、１２ポジション対応キー群２３が設置されている。この１２ポジション対応キー群２３は、１〜１２の番号が付された１２個のチャンネル選局キーで構成されており、ユーザが、所望の放送チャンネルをダイレクトに選局できるようになっている。
【００３３】
また、このリモートコントローラ２２には、アップダウン選局キー２４が設置されており、後述する各種の形態でアップダウン選局動作を実現することができるようになっている。
【００３４】
図３は、上記ＳＩ情報の中のサービス識別情報（１６ビット）を示している。このサービス識別情報は、６ビットの地域識別情報、１ビットの県複フラグ、２ビットのサービス種別情報、４ビットの地域事業者識別情報及び３ビットのサービス番号とから構成されている。
【００３５】
このうち、地域識別情報は、県域放送であるか広域放送であるかを指定する情報である。県複フラグは、県複放送局がある場合「１」となる。サービス種別情報は、「０」テレビ型、「１」／「２」データ型（部分受信サービスを除く）、「３」データ型（部分受信サービス）である。なお、部分受信サービスとは、携帯型受信機向けのデータ放送サービスである。地域事業者識別情報は、地域識別毎に定義される放送事業者の識別情報である。サービス番号は、０〜７を放送事業者毎に指定が可能である。
【００３６】
そして、３桁チャンネル番号は、サービス種別情報とｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄとサービス番号とから算出される。すなわち、
３桁チャンネル番号＝（サービス種別×２００）＋（ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ×１０）＋（サービス番号＋１）
となる。
【００３７】
ここで、ユーザがデジタルテレビジョン放送受信機に居住地域を設定すると、コントロール制御回路１６は、地上デジタル放送が行なわれている物理チャンネルを順次スキャンし、同じ３桁チャンネル番号を有する複数の放送局も含んだ、受信可能な地上デジタル放送の受信放送局テーブルを作成する。そして、放送チャンネルのアップダウン選局動作は、この受信放送局テーブルを参照して行なわれる。
【００３８】
図４は、デジタルテレビジョン放送受信機の地域識別が２４の場合の受信放送局テーブルの一例を示している。すなわち、この受信放送局テーブルは、放送局名と、地域識別と、ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄと、サービス種別と、枝番号を含んだ３桁チャンネル番号とを対応させたリストである。
【００３９】
以下、図４に示す受信放送局テーブルを参照した、種々の形態のアップダウン選局動作について説明する。まず、第１の形態のアップダウン選局動作は、３桁チャンネル番号順で、かつ、同一３桁チャンネル番号については枝番号順のアップダウン選局動作である。
【００４０】
これは、例えば、枝番号を含む３桁チャンネル番号が０１１（０）からアップ選局を行なった場合、まず、同一３桁チャンネル番号０１１のうち枝番号の昇順に０１１（１）、０１１（２）と選局される。その後、次の昇順の３桁チャンネル番号０１２について、枝番号の昇順に０１２（０）、０１２（１）、０１２（２）と選局される。
【００４１】
なお、ダウン選局については、上記と逆の動作となる。すなわち、枝番号を含む３桁チャンネル番号が０１２（２）からダウン選局を行なった場合、まず、同一３桁チャンネル番号０１２のうち枝番号の降順に０１２（１）、０１２（０）と選局される。その後、次の降順の３桁チャンネル番号０１１について、枝番号の降順に０１１（２）、０１１（１）、０１１（０）と選局される。
【００４２】
このように、３桁チャンネル番号順で、かつ、同一３桁チャンネル番号については枝番号順にアップダウン選局動作を行なうルールを規定することにより、同一の３桁チャンネル番号の放送が複数受信可能な場合でも、効率的なアップダウン選局を行なうことが可能となる。
【００４３】
次に、第２の形態のアップダウン選局動作について説明する。この第２の形態のアップダウン選局動作は、まず、ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ順で、かつ、同一ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄについては枝番号順で、かつ、同一の枝番号については３桁チャンネル番号順のアップダウン選局動作である。
【００４４】
例えば、枝番号を含む３桁チャンネル番号が０１１（０）からアップ選局を行なった場合、まず、同一放送局内、つまり、ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄが「１」の中で枝番号が（０）のものについて、３桁チャンネル番号の昇順に０１２（０）、０１３（０）と選局される。
【００４５】
その後、同じｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」の中で、次の昇順の枝番号（１）のものについて、３桁チャンネル番号の昇順に０１１（１）、０１２（１）、０１３（１）と選局され、さらに、同じｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」の中で、次の昇順の枝番号（２）のものについて、３桁チャンネル番号の昇順に０１１（２）、０１２（２）、０１３（２）と選局される。
【００４６】
この０１３（２）の後は、同じｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」が存在しないため、次の昇順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「２」の中で最小の枝番号（０）のものについて、３桁チャンネル番号の昇順に０２１（０）、０２２（０）と選局される。
【００４７】
なお、ダウン選局については、上記と逆の動作となる。すなわち、枝番号を含む３桁チャンネル番号が０２２（０）からダウン選局を行なった場合、まず、同じｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「２」の中で枝番号が（０）のものについて、３桁チャンネル番号の降順に０２１（０）が選局される。
【００４８】
その後、同じｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「２」が存在しないため、次の降順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」の中で最大の枝番号（２）のものについて、３桁チャンネル番号の降順に０１３（２）、０１２（２）、０１１（２）と選局される。さらに、同じｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」の中で、次の降順の枝番号（１）のものについて、３桁チャンネル番号の降順に０１３（１）、０１２（１）、０１１（１）と選局される。その後、同じｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」の中で、次の降順の枝番号（０）のものについて、３桁チャンネル番号の降順に０１３（０）、０１２（０）、０１１（０）と選局される。
【００４９】
このように、ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ順で、かつ、同一ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄについては枝番号順で、かつ、同一の枝番号については３桁チャンネル番号順にアップダウン選局動作を行なうルールを規定することにより、同一の３桁チャンネル番号の放送が複数受信可能な場合でも、効率的なアップダウン選局を行なうことが可能となる。
【００５０】
次に、第３の形態のアップダウン選局動作について説明する。この第３の形態のアップダウン選局動作は、まず、サービス種別順で、かつ、同一サービス種別についてはｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ順で、かつ、同一ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄについては枝番号順で、かつ、同一の枝番号については３桁チャンネル番号順のアップダウン選局動作である。
【００５１】
例えば、枝番号を含む３桁チャンネル番号が０３１（０）からアップ選局を行なった場合、まず、０３１（０）が属するサービス種別「０」の中で、ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄが「３」のものが他に存在しないため、同じサービス種別「０」の中で、次の昇順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」の中で、最小の枝番号（０）のものについて、３桁チャンネル番号の昇順に０４１（０）が選局される。
【００５２】
その後、サービス種別「０」の中でｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」は最大であることから、次の昇順のサービス種別「１」に移り、このサービス種別「１」の中で、最小ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」の中で、最小の枝番号（０）のものについて、３桁チャンネル番号の昇順に２１１（０）が選局される。
【００５３】
以後、２１１（０）が属するサービス種別「１」の中で、ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄが「３」以上のものが他に存在しないため、次の昇順のサービス種別「２」の中で、最小のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」の中で、最小の枝番号（０）のものについて、３桁チャンネル番号の昇順に４１１（０）が選局される。
【００５４】
なお、ダウン選局については、上記と逆の動作となる。すなわち、枝番号を含む３桁チャンネル番号が４１１（０）からダウン選局を行なった場合、まず、４１１（０）が属するサービス種別「２」の中で、ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄが「３」以下のものが他に存在しないため、次の降順のサービス種別「１」の中で、最大のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」の中で、最大の枝番号（０）のものについて、３桁チャンネル番号の降順に２１１（０）が選局される。
【００５５】
その後、サービス種別「１」の中で、ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄが「３」以下のものが他に存在しないため、次の降順のサービス種別「０」の中で、最大のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」の中で、最大の枝番号（０）のものについて、３桁チャンネル番号の降順に０４１（０）が選局される。
【００５６】
以後、サービス種別「０」の中で、ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」が他に存在しないため、次の降順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」の中で、最大の枝番号（０）のものについて、３桁チャンネル番号の降順に０３１（０）が選局される。
【００５７】
このように、サービス種別順で、かつ、同一サービス識別についてはｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ順で、かつ、同一ｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄについては枝番号順で、かつ、同一の枝番号については３桁チャンネル番号順にアップダウン選局動作を行なうルールを規定することにより、同一の３桁チャンネル番号の放送が複数受信可能な場合でも、効率的なアップダウン選局を行なうことが可能となる。
【００５８】
次に、第４の形態のアップダウン選局動作について説明する。この第４の形態のアップダウン選局動作は、まず、枝番号順で、かつ、同一の枝番号については３桁チャンネル番号順のアップダウン選局動作である。
【００５９】
例えば、枝番号を含む３桁チャンネル番号が０１１（０）からアップ選局を行なった場合、まず、枝番号（０）のものから３桁チャンネル番号の昇順に０１２（０）、０１３（０）、……、２１１（０）、４１１（０）と選局される。
【００６０】
その後、枝番号（０）の３桁チャンネル番号が最大になると、次の昇順の枝番号（１）のものから３桁チャンネル番号の昇順に０１１（１）、０１２（１）、０１３（１）と選局される。さらに、枝番号（１）の３桁チャンネル番号が最大になると、次の昇順の枝番号（２）のものから３桁チャンネル番号の昇順に０１１（２）、０１２（２）、０１３（２）と選局される。
【００６１】
なお、ダウン選局については、上記と逆の動作となる。すなわち、枝番号を含む３桁チャンネル番号が０１３（２）からダウン選局を行なった場合、まず、枝番号（２）のものから３桁チャンネル番号の降順に０１２（２）、０１１（２）と選局される。
【００６２】
その後、枝番号（２）の３桁チャンネル番号が最小になると、次の降順の枝番号（１）のものから３桁チャンネル番号の降順に０１３（１）、０１２（１）、０１１（１）と選局される。さらに、枝番号（１）の３桁チャンネル番号が最大になると、次の降順の枝番号（０）のものから３桁チャンネル番号の降順に４１１（０）、２１１（０）、……、０１２（０）、０１１（０）と選局される。
【００６３】
このように、枝番号順で、かつ、同一の枝番号については３桁チャンネル番号順にアップダウン選局動作を行なうルールを規定することにより、同一の３桁チャンネル番号の放送が複数受信可能な場合でも、効率的なアップダウン選局を行なうことが可能となる。
【００６４】
次に、第５の形態のアップダウン選局動作について説明する。この第５の形態のアップダウン選局動作は、まず、枝番号順で、かつ、同一の枝番号についてはｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ順で、同一のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄについては３桁チャンネル番号順のアップダウン選局動作である。
【００６５】
例えば、枝番号を含む３桁チャンネル番号が０１１（０）からアップ選局を行なった場合、まず、枝番号が（０）のものの中で最小のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」の中で３桁チャンネル番号の昇順に０１２（０）、０１３（０）が選局される。
【００６６】
そして、３桁チャンネル番号が最大になると、同じ枝番号（０）の中で次の昇順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「２」が選択され、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「２」の中で３桁チャンネル番号の昇順に０２１（０）、０２２（０）が選局される。
【００６７】
このようにして、３桁チャンネル番号が最大になると、同じ枝番号（０）の中で次の昇順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」が選択され、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」の中で３桁チャンネル番号の昇順に０３１（０）、２１１（０）、４１１（０）が選局される。
【００６８】
さらに、３桁チャンネル番号が最大になると、同じ枝番号（０）の中で次の昇順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」が選択され、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」の中で３桁チャンネル番号の昇順に０４１（０）が選局される。
【００６９】
すると、枝番号（０）が終了するので、次の昇順の枝番号（１）の中で最小のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」の中で３桁チャンネル番号の昇順に０１１（１）、０１２（１）、０１３（１）と選局される。
【００７０】
なお、ダウン選局については、上記と逆の動作となる。すなわち、枝番号を含む３桁チャンネル番号が０１３（１）からダウン選局を行なった場合、まず、枝番号が（１）のものの中で最大のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」の中で３桁チャンネル番号の降順に０１２（１）、０１１（１）が選局される。
【００７１】
このようにして、３桁チャンネル番号が最小になると、枝番号（１）が終了するので、次の降順の枝番号（０）が選択される。そして、この枝番号（０）の中で最大のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」が選択され、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「４」の中で３桁チャンネル番号の昇順に０４１（０）が選局される。
【００７２】
その後、３桁チャンネル番号が最小になると、同じ枝番号（０）の中で次の降順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」が選択され、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「３」の中で３桁チャンネル番号の降順に４１１（０）、２１１（０）、０３１（０）が選局される。
【００７３】
さらに、３桁チャンネル番号が最小になると、同じ枝番号（０）の中で次の降順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「２」が選択され、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「２」の中で３桁チャンネル番号の降順に０２２（０）、０２１（０）が選局される。
【００７４】
その後、３桁チャンネル番号が最小になると、同じ枝番号（０）の中で次の降順のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」が選択される。そして、このｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ「１」の中で３桁チャンネル番号の降順に０１３（０）、０１２（０）、０１１（０）が選局される。
【００７５】
このように、枝番号順で、かつ、同一の枝番号についてはｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄ順で、同一のｒｅｍｏｔｅ＿ｃｏｎｔｒｏｌ＿ｋｅｙ＿ｉｄについては３桁チャンネル番号順にアップダウン選局動作を行なうルールを規定することにより、同一の３桁チャンネル番号の放送が複数受信可能な場合でも、効率的なアップダウン選局を行なうことが可能となる。
【００７６】
上記した５つの形態のアップダウン選局動作は、受信チャンネルの切り替え順として説明したが、例えば、ＧＵＩ（ＧｒａｐｈｉｃａｌＵｓｅｒＩｎｔｅｒｆａｃｅ）による受信チャンネルの一覧表示を行なう場合に、上記した５つの形態のアップダウン選局順で表示を行なうことも可能である。
【００７７】
また、上記した５つの形態のアップダウン選局動作は、ユーザがリモートコントローラ２２を操作することにより、選択的に設定することができるようにすることも可能である。
【００７８】
なお、この発明は上記した実施の形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を種々変形して具体化することができる。
【００７９】
また、上記した実施の形態に開示されている複数の構成要素を適宜に組み合わせることにより、種々の発明を形成することができる。例えば、実施の形態に示される全構成要素から幾つかの構成要素を削除しても良いものである。さらに、異なる実施の形態に係る構成要素を適宜組み合わせても良いものである。
【００８０】
【発明の効果】
以上詳述したようにこの発明によれば、同一の３桁チャンネル番号の放送が複数受信可能な場合を考慮したアップダウン選局のルールを規定し、ユーザの要求に応じたアップダウン選局動作を実現することを可能とした放送受信装置及び放送受信方法を提供することができる。
【図面の簡単な説明】
【図１】この発明の実施の形態を示すもので、デジタルテレビジョン放送受信機の信号処理系を説明するために示すブロック構成図。
【図２】同デジタルテレビジョン放送受信機におけるリモートコントローラの外観を説明するために示す図。
【図３】同実施の形態におけるデジタルテレビジョン放送に含まれるＳＩ情報の中のサービス識別情報を説明するために示す図。
【図４】同デジタルテレビジョン放送受信機がチャンネルスキャンによって作成した受信放送局テーブルの一例を説明するために示す図。
【符号の説明】
１１…デジタルアンテナ、１２…チューナ、１３…エラー訂正回路、１４…スクランブル制御回路、１５…多重データ分離回路、１６…コントロール制御回路、１７…ＭＰＥＧ映像再生回路、１８…ＭＰＥＧ音声再生回路、１９…ＯＳＤ回路、２０…ＣＲＴ、２１…スピーカ、２２…リモートコントローラ、２３…１２ポジション対応キー群、２４…アップダウン選局キー。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a broadcast receiving apparatus and a broadcast receiving method particularly suitable for receiving terrestrial digital broadcasts.
[0002]
[Prior art]
As is well known, in recent years, digitalization of television broadcasting has been promoted. In Japan, not only satellite digital broadcasting such as BS (Broadcasting Satellite) digital broadcasting and 110-degree CS (Communication Satellite) digital broadcasting, but also terrestrial digital broadcasting is being started.
[0003]
Since this terrestrial digital broadcasting is based on the current terrestrial analog broadcasting base, the concept of 12 positions with 12 keys for direct channel selection or the division of the whole of Japan into multiple regions The concept of a regional unit where a broadcasting station is set up for each region is included in the operation regulations.
[0004]
Then, the broadcast stations in each region, together with the program information, control information (region identification) indicating to which region the broadcast is directed, and the broadcast channel of the broadcast station to which of the 12 positions. Control information (remote_control_key_id) for designating whether or not to assign is transmitted.
[0005]
In digital terrestrial broadcasting, each broadcasting channel is distinguished by a channel number consisting of three digits. The three-digit channel numbers are defined based on the concept of the regional unit so that the same three-digit channel numbers do not overlap in the same area.
[0006]
However, the three-digit channel numbers can be duplicated between different regions. For this reason, in the cross-border area, a broadcast in an adjacent area can be viewed in addition to the broadcast in the area where the user lives, and there is a possibility that a plurality of broadcasts with the same three-digit channel number are received.
[0007]
As described above, when a plurality of broadcasts having the same three-digit channel number are received (accurately, a plurality of broadcasts in which the remote_control_key_id is duplicated can be received), according to the operation regulations of the terrestrial digital broadcasting, the duplication due to the processing on the receiver side A one-digit branch number is automatically assigned to a three-digit channel number.
[0008]
This branch number can be added from “0” to a maximum of “9”. In this case, the branch number “0” is preferentially assigned to the broadcast for the user's residence area (intra-area broadcasting), and the branch number from “1” to the broadcast outside the user's residence area (outside the area broadcasting). They are allocated in order.
[0009]
Here, in digital terrestrial broadcasting, the up / down channel selection operation of a broadcast channel is basically performed by sequentially selecting a three-digit channel number in ascending or descending order.
[0010]
However, when a plurality of broadcasts having the same remote_control_key_id can be received as described above, that is, when there are a plurality of broadcasts having the same three-digit channel number, the three-digit channel numbers are simply sequentially selected in ascending or descending order. There is a problem that it is not possible to adopt a method of selecting a channel up and down.
[0011]
Patent Literature 1 discloses a configuration in which initial synchronization is quickly succeeded and a new transmission parameter can be acquired by referring to a reception area-to-transmission parameter correspondence table stored in advance from a reception area. .
[0012]
Further, in Patent Document 2, a table for channel selection is created from received data, and a CPU (Central Processing Unit) that has received a signal for up or down of a channel refers to the table to determine a channel from a currently displayed channel. A configuration that selects the next channel is disclosed.
[0013]
Further, Patent Document 3 discloses a configuration in which, when a channel number is directly input, if there are a plurality of channel numbers having the same value as the input value, these are presented to a user at the same time for selection. I have.
[0014]
However, these Patent Documents 1 to 3 all disclose, as described above, any measures to be taken in the case where a plurality of broadcasts of the same three-digit channel number are received in up-down channel selection. It is not described.
[0015]
[Patent Document 1]
JP-A-2002-218339
[0016]
[Patent Document 2]
JP 2001-177778 A
[0017]
[Patent Document 3]
JP-A-2002-94889
[0018]
[Problems to be solved by the invention]
Therefore, the present invention has been made in consideration of the above circumstances, and defines an up / down channel selection rule in consideration of a case where a plurality of broadcasts having the same three-digit channel number can be received, and provides an up / down channel selection according to a user request. It is an object of the present invention to provide a broadcast receiving apparatus and a broadcast receiving method capable of realizing a down channel selection operation.
[0019]
[Means for Solving the Problems]
The broadcast receiving apparatus according to the present invention selectively receives a plurality of broadcast channels each having a channel number, and when a plurality of broadcast channels having the same channel number are received, the It is intended to add a different branch number to each broadcast channel. Then, in a state where one of the up channel selection and the down channel selection of the broadcast channel is requested, the channel selection control means for performing the channel selection operation in the order of the channel numbers and for the same channel number in the order of the branch numbers. It is prepared for.
[0020]
In addition, the broadcast receiving method according to the present invention selectively receives a plurality of broadcast channels each having a channel number, and when a plurality of broadcast channels having the same channel number are received, the plurality of broadcast channels are received. It is intended for a method of adding a different branch number to each number for each broadcast channel. And switching the channel numbers in ascending order in a state where the up-selection of the broadcast channel is requested, and, when there are a plurality of the same channel numbers, switching the branch numbers among the same channel numbers in the ascending order. A step of switching channel numbers in descending order in a state where channel down-selection is requested, and, when there are a plurality of identical channel numbers, switching a branch number in descending order among the same channel numbers. Things.
[0021]
According to the configuration and method as described above, at the time of up-selection or down-selection of a broadcast channel, the same channel number is selected and, for the same channel number, the channel selection operation is performed in the order of branch numbers. Up / down channel selection rule in consideration of the case where a plurality of broadcasts of the channel number can be received, and up / down channel selection operation according to the user's request can be realized.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a digital television broadcast receiver corresponding to reception of digital terrestrial broadcasts.
[0023]
That is, the terrestrial digital broadcast signal received by the digital antenna 11 is supplied to the tuner 12, where a predetermined transmission channel is selected, and then output to the error correction circuit 13.
[0024]
The error correction circuit 13 performs demodulation processing on the received signal output from the tuner 12, performs error correction processing, and outputs the result to the scramble control circuit 14.
[0025]
When the input received signal has been subjected to scramble processing, the scramble control circuit 14 performs descrambling processing for removing the scramble and outputs the result to the multiplexed data separation circuit 15. In this case, the data supplied from the scramble control circuit 14 to the multiplexed data separation circuit 15 is multiplexed data including data of a plurality of channels and programs.
[0026]
The multiplexed data separation circuit 15 separates a packet based on the identification information ID included in the bit stream of the received signal. When the multiplexed data separation circuit 15 separates the program information of the service information (SI) information, it supplies the program information to the control control circuit 16, and also converts the video signal of each packet into a moving picture experts group (MPEG). ) It is supplied to the video reproduction circuit 17 and the audio signal is supplied to the MPEG audio reproduction circuit 18.
[0027]
Since the input video signal is obtained by compression-coding the MPEG video reproduction circuit 17, the MPEG-video reproduction circuit 17 decodes the compression-coded data to output an analog video signal.
[0028]
Further, the control control circuit 16 generates an OSD signal required for display based on the SI information acquired from the multiplexed data separation circuit 15 and outputs the OSD signal to the OSD circuit 19.
[0029]
The OSD circuit 19 superimposes the video signal output from the MPEG video reproduction circuit 17 and the OSD signal supplied from the control control circuit 16 and outputs the superposed video signal to a CRT (Cathode Ray Tube) 20 to display the video. Let it.
[0030]
Further, since the input audio signal is a compression-encoded signal, the MPEG audio reproducing circuit 18 performs a decoding process on this audio signal and outputs an analog audio signal after the decoding process. Then, the audio signal output from the MPEG audio reproduction circuit 18 is guided to the speaker 21 to reproduce the audio.
[0031]
Here, the operation of this digital television broadcast receiver is totally controlled by a control control circuit 16. The control control circuit 16 has a built-in CPU (Central Processing Unit) not shown, receives operation information transmitted from the remote controller 22, and controls each circuit unit so that the operation content is reflected. are doing.
[0032]
FIG. 2 shows the appearance of the remote controller 22. The remote controller 22 has a key group 23 corresponding to 12 positions. The 12-position corresponding key group 23 is composed of 12 channel selection keys numbered 1 to 12 so that the user can directly select a desired broadcast channel.
[0033]
The remote controller 22 is provided with an up / down channel selection key 24, so that an up / down channel selection operation can be realized in various forms described later.
[0034]
FIG. 3 shows service identification information (16 bits) in the SI information. The service identification information includes 6-bit area identification information, 1-bit prefectural flag, 2-bit service type information, 4-bit area carrier identification information, and 3-bit service number.
[0035]
Among them, the area identification information is information for specifying whether the broadcast is the prefectural area broadcast or the wide area broadcast. The prefectural compound flag is “1” when there is a prefectural compound broadcasting station. The service type information is “0” TV type, “1” / “2” data type (excluding partial reception service), and “3” data type (partial reception service). The partial reception service is a data broadcasting service for a portable receiver. The region operator identification information is identification information of a broadcaster defined for each region identification. Service numbers 0 to 7 can be specified for each broadcaster.
[0036]
The three-digit channel number is calculated from the service type information, the remote_control_key_id, and the service number. That is,
3-digit channel number = (service type × 200) + (remote_control_key_id × 10) + (service number + 1)
It becomes.
[0037]
Here, when the user sets the residence area in the digital television broadcast receiver, the control control circuit 16 sequentially scans the physical channels on which terrestrial digital broadcasting is performed, and sets a plurality of broadcasting stations having the same three-digit channel number. A reception broadcast station table for receivable terrestrial digital broadcasts, including the reception broadcast station table, is created. The up / down channel selection operation of a broadcast channel is performed with reference to the reception broadcast station table.
[0038]
FIG. 4 shows an example of the reception broadcast station table when the area identification of the digital television broadcast receiver is 24. That is, the reception broadcasting station table is a list in which the broadcasting station name, the area identification, the remote_control_key_id, the service type, and the three-digit channel number including the branch number are associated with each other.
[0039]
Hereinafter, various types of up / down channel selection operations with reference to the reception broadcast station table shown in FIG. 4 will be described. First, the up / down channel selection operation of the first embodiment is an up / down channel selection operation in the order of three-digit channel numbers and, for the same three-digit channel numbers, in the order of branch numbers.
[0040]
This is because, for example, when up-tuning is performed from a 3-digit channel number including a branch number of 011 (0), first, 011 (1) and 011 (2) are arranged in ascending order of the branch numbers among the same 3-digit channel numbers 011. ) Is selected. After that, for the next ascending 3-digit channel number 012, tuned to 012 (0), 012 (1), 012 (2) in ascending branch number.
[0041]
Note that the operation reverse to the above is performed for the down channel selection. That is, when down-tuning is performed from a three-digit channel number including a branch number of 012 (2), first, the same three-digit channel numbers 012 are selected as 012 (1) and 012 (0) in descending order of the branch numbers. Will be broadcast. Thereafter, for the next three-digit channel number 011 in descending order, the stations are selected as 011 (2), 011 (1), 011 (0) in descending order of the branch numbers.
[0042]
In this manner, by defining the rule of performing the up / down channel selection operation in the order of the three-digit channel numbers and for the same three-digit channel numbers in the order of the branch numbers, a plurality of broadcasts of the same three-digit channel number can be received. Even in this case, efficient up / down channel selection can be performed.
[0043]
Next, an up-down tuning operation of the second embodiment will be described. The up / down channel selection operation of the second embodiment is first performed in the order of remote_control_key_id, for the same remote_control_key_id in the order of branch numbers, and for the same branch number in the order of 3-digit channel numbers. is there.
[0044]
For example, when up-tuning is performed from a 3-digit channel number including 011 (0) including a branch number, first, in the same broadcasting station, that is, when the remote_control_key_id is “1” and the branch number is (0), Channels are selected as 012 (0) and 013 (0) in ascending order of the three-digit channel number.
[0045]
After that, in the same remote_control_key_id “1”, the next one with the branch number (1) in ascending order is selected as 011 (1), 012 (1), 013 (1) in ascending order of the 3-digit channel number, Further, among the same remote_control_key_id “1”, the next one with branch number (2) in ascending order is selected as 011 (2), 012 (2), 013 (2) in ascending order of 3-digit channel number. .
[0046]
After 013 (2), since the same remote_control_key_id “1” does not exist, the branch number (0) having the smallest branch number (0) in the next ascending remote_control_key_id “2” is 021 ( 0) and 022 (0) are selected.
[0047]
Note that the operation reverse to the above is performed for the down channel selection. That is, when down-tuning is performed from a 3-digit channel number including a branch number of 022 (0), first, in the same remote_control_key_id “2”, a branch number of (0) and a 3-digit channel number in descending order 021 (0) is selected.
[0048]
Thereafter, since the same remote_control_key_id “2” does not exist, the branch number (2) having the largest branch number (2) in the next descending order of the remote_control_key_id “1” is 013 (2), 012 (2) in descending order of the 3-digit channel number. , 011 (2). Further, among the same remote_control_key_id “1”, the next branch number (1) in descending order is selected as 013 (1), 012 (1), 011 (1) in descending order of 3-digit channel number. . After that, among the same remote_control_key_id “1”, for the next branch number (0) in descending order, the stations are selected as 013 (0), 012 (0), 011 (0) in descending order of the 3-digit channel number. .
[0049]
In this way, by defining the rule for performing the up-down channel selection operation in the order of the remote_control_key_id, the same remote_control_key_id in the order of the branch number, and the same branch number in the order of the 3-digit channel number, the same 3-digit number is obtained. Even when a plurality of broadcasts of channel numbers can be received, efficient up / down channel selection can be performed.
[0050]
Next, an up-down tuning operation of the third embodiment will be described. The up / down channel selection operation of the third embodiment is performed in the order of service types, in the order of remote_control_key_id for the same service type, in the order of branch numbers for the same remote_control_key_id, and in the order of branch numbers for the same branch number. This is an up-down channel selection operation in the order of three-digit channel numbers.
[0051]
For example, when up-tuning is performed from a 3-digit channel number including a branch number of 031 (0), first, among the service types “0” to which the 031 (0) belongs, those whose remote_control_key_id is “3” are other. , The next ascending remote_control_key_id “4” is selected from the same service type “0”. Then, among the remote_control_key_id “4”, 041 (0) is selected in ascending order of the three-digit channel number for the one with the smallest branch number (0).
[0052]
Thereafter, since the remote_control_key_id “4” is the largest among the service types “0”, the process moves to the next ascending service type “1”, and the minimum remote_control_key_id “3” is selected from the service type “1”. Is done. Then, among the remote_control_key_id “3”, 211 (0) is selected in ascending order of the 3-digit channel number for the one with the smallest branch number (0).
[0053]
Thereafter, among the service types “1” to which the 211 (0) belongs, there is no other remote_control_key_id of “3” or more. Therefore, the smallest remote_control_key_id “3” in the next ascending service type “2”. Is selected. Then, among the remote_control_key_id “3”, 411 (0) is selected in ascending order of the 3-digit channel number for the one with the smallest branch number (0).
[0054]
Note that the operation reverse to the above is performed for the down channel selection. That is, when down-tuning is performed from a three-digit channel number including a branch number of 411 (0), first, among the service types “2” to which 411 (0) belongs, those having a remote_control_key_id of “3” or less are used. Since there is no other service type, the largest remote_control_key_id “3” is selected from the next descending service type “1”. Then, among the remote_control_key_id “3”, 211 (0) is selected in descending order of the 3-digit channel number for the one with the largest branch number (0).
[0055]
After that, among the service types “1”, there is no other remote_control_key_id of “3” or less, so the largest remote_control_key_id “4” is selected from the next descending service type “0”. Then, among the remote_control_key_id “4”, for the branch number (0) having the largest branch number, 041 (0) is selected in descending order of the 3-digit channel number.
[0056]
Thereafter, since there is no other remote_control_key_id “4” in the service type “0”, the next descending order of the remote_control_key_id “3” is selected. Then, among the remote_control_key_id “3”, 031 (0) is selected in descending order of the three-digit channel number for the one with the largest branch number (0).
[0057]
As described above, the up-down channel selection operation is performed in the order of service type, in the order of remote_control_key_id for the same service identification, in the order of branch numbers for the same remote_control_key_id, and in the order of branch numbers for the same branch number, and in the order of three-digit channel numbers. By defining the rules to be performed, efficient up-down channel selection can be performed even when a plurality of broadcasts with the same three-digit channel number can be received.
[0058]
Next, an up-down tuning operation of the fourth embodiment will be described. The up / down channel selection operation of the fourth embodiment is an up / down channel selection operation in the order of branch numbers, and for the same branch number in the order of three-digit channel numbers.
[0059]
For example, when up-tuning is performed from a 3-digit channel number including a branch number of 011 (0), first, 012 (0) and 013 (0) are arranged in ascending order of 3-digit channel numbers from the branch number (0). ,..., 211 (0) and 411 (0).
[0060]
Thereafter, when the three-digit channel number of the branch number (0) becomes the maximum, 011 (1), 012 (1), and 013 (1) are arranged in ascending order of the 3-digit channel numbers from the next ascending branch number (1). Is tuned in. Further, when the three-digit channel number of the branch number (1) becomes the maximum, 011 (2), 012 (2), and 013 (2) in ascending order of the three-digit channel numbers from the next ascending branch number (2). Is tuned in.
[0061]
Note that the operation reverse to the above is performed for the down channel selection. That is, when down-tuning is performed starting from 013 (2) with a 3-digit channel number including a branch number, first, 012 (2), 011 (2) are arranged in descending order of 3-digit channel numbers from the branch number (2). Is tuned in.
[0062]
After that, when the three-digit channel number of the branch number (2) becomes the smallest, 013 (1), 012 (1), and 011 (1) in descending order of the 3-digit channel number from the branch number (1) in the next descending order. Is tuned in. Further, when the 3-digit channel number of the branch number (1) becomes the maximum, 411 (0), 211 (0),..., 012 in descending order of the 3-digit channel number from the next branch number (0) in descending order. (0) and 011 (0) are selected.
[0063]
In this way, by defining the rule for performing the up / down channel selection operation in the order of branch numbers and the same branch number in the order of three-digit channel numbers, it is possible to receive a plurality of broadcasts of the same three-digit channel number. However, efficient up / down channel selection can be performed.
[0064]
Next, an up-down tuning operation of the fifth embodiment will be described. The up / down channel selection operation of the fifth embodiment is an up / down channel selection operation in the order of branch numbers, in the order of remote_control_key_id for the same branch number, and in the order of three-digit channel numbers for the same remote_control_key_id. .
[0065]
For example, when up-tuning is performed from a 3-digit channel number including 011 (0) including a branch number, first, the smallest remote_control_key_id “1” among those having a branch number of (0) is selected. In this remote_control_key_id “1”, 012 (0) and 013 (0) are selected in ascending order of the three-digit channel number.
[0066]
When the three-digit channel number becomes the maximum, the next ascending order of remote_control_key_id “2” is selected in the same branch number (0), and 021 (0) is selected in ascending order of the three-digit channel number in this remote_control_key_id “2”. ), 022 (0) is selected.
[0067]
In this way, when the three-digit channel number becomes the maximum, the next ascending remote_control_key_id “3” is selected in the same branch number (0), and the three-digit channel number is ascending in this remote_control_key_id “3”. 031 (0), 211 (0) and 411 (0) are selected.
[0068]
Further, when the three-digit channel number becomes the maximum, the next ascending remote_control_key_id “4” is selected in the same branch number (0), and in the remote_control_key_id “4”, the ascending order of the three-digit channel number is 041 (0). ) Is selected.
[0069]
Then, since the branch number (0) ends, the smallest remote_control_key_id “1” in the next ascending branch number (1) is selected. In this remote_control_key_id “1”, the stations are tuned to 011 (1), 012 (1), and 013 (1) in ascending order of the 3-digit channel number.
[0070]
Note that the operation reverse to the above is performed for the down channel selection. That is, when down-tuning is performed from a 3-digit channel number including a branch number of 013 (1), the largest remote_control_key_id “1” among those having a branch number of (1) is selected first. In this remote_control_key_id “1”, 012 (1) and 011 (1) are selected in descending order of the 3-digit channel number.
[0071]
In this way, when the three-digit channel number becomes minimum, the branch number (1) ends, and the next descending branch number (0) is selected. Then, the largest remote_control_key_id “4” is selected from among the branch numbers (0), and 041 (0) is selected in ascending order of three-digit channel numbers in the remote_control_key_id “4”.
[0072]
Thereafter, when the three-digit channel number becomes the minimum, the next descending order of remote_control_key_id “3” is selected in the same branch number (0), and 411 (0) in descending order of the three-digit channel number in this remote_control_key_id “3”. ), 211 (0) and 031 (0) are selected.
[0073]
Furthermore, when the three-digit channel number becomes the minimum, the next descending order of remote_control_key_id “2” is selected in the same branch number (0), and 022 (0) in descending order of the three-digit channel number in this remote_control_key_id “2”. ), 021 (0) is selected.
[0074]
Thereafter, when the three-digit channel number becomes the minimum, the next descending remote_control_key_id “1” in the same branch number (0) is selected. In this remote_control_key_id “1”, 013 (0), 012 (0), 011 (0) are selected in descending order of the 3-digit channel number.
[0075]
As described above, the rule for performing the up-down channel selection operation in the order of the branch number, the order of the remote_control_key_id for the same branch number, and the order of the 3-digit channel number for the same remote_control_key_id specifies the same 3-digit channel. Even when a plurality of number broadcasts can be received, efficient up / down channel selection can be performed.
[0076]
The above-described five types of up / down channel selection operations have been described as the order of switching the reception channels. However, for example, when a list of reception channels is displayed by a GUI (Graphical User Interface), the five types of up / down selection are performed. It is also possible to display in the order of tuning.
[0077]
In addition, the user can operate the remote controller 22 to selectively set the up / down channel selection operation in the above-described five forms.
[0078]
It should be noted that the present invention is not limited to the above-described embodiments as they are, and can be embodied by variously modifying constituent elements in an implementation stage without departing from the scope of the invention.
[0079]
Various inventions can be formed by appropriately combining a plurality of components disclosed in the above-described embodiments. For example, some components may be deleted from all the components described in the embodiments. Further, constituent elements according to different embodiments may be appropriately combined.
[0080]
【The invention's effect】
As described above in detail, according to the present invention, an up-down channel selection rule is defined in consideration of a case where a plurality of broadcasts having the same three-digit channel number can be received, and an up-down channel selection operation according to a user request Can be provided.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention and is a block diagram illustrating a signal processing system of a digital television broadcast receiver.
FIG. 2 is an exemplary view showing the appearance of a remote controller in the digital television broadcast receiver.
FIG. 3 is an exemplary view for explaining service identification information in SI information included in digital television broadcasting according to the embodiment;
FIG. 4 is an exemplary view showing an example of a reception broadcast station table created by the digital television broadcast receiver by channel scanning.
[Explanation of symbols]
11: Digital antenna, 12: Tuner, 13: Error correction circuit, 14: Scramble control circuit, 15: Multiplexed data separation circuit, 16: Control control circuit, 17: MPEG video reproduction circuit, 18: MPEG audio reproduction circuit, 19 ... OSD circuit, 20 ... CRT, 21 ... Speaker, 22 ... Remote controller, 23 ... Key group corresponding to 12 positions, 24 ... Up / down channel selection key.

Claims

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving device to be added,
Channel selection control means for performing a channel selection operation in the order of the channel numbers and for the same channel number in the order of the branch numbers in a state where one of the up channel selection and the down channel selection of the broadcast channel is requested A broadcast receiving apparatus comprising:

The tuning control means,
In a state in which the up-selection of the broadcast channel is requested, the channel numbers are switched in ascending order, and when there are a plurality of the same channel numbers, the up-selection is performed in which the branch numbers are switched in the ascending order among the same channel numbers. Means,
In a state where the down channel selection of the broadcast channel is requested, the channel numbers are switched in descending order, and when there are a plurality of the same channel numbers, the down channel is switched in the descending order of the branch numbers in the same channel numbers. 2. The broadcast receiving apparatus according to claim 1, further comprising means.

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving device to be added,
In a state where one of the up-selection and the down-selection of the broadcast channel is requested, in the order of the designation information for designating which of the plurality of select positions the broadcast channel is assigned to, and the same. The broadcast receiving apparatus further comprises a tuning control means for performing a tuning operation in the order of the branch numbers for the designation information and in the order of the channel numbers for the same branch number.

The tuning control means,
In the state where the up-selection of the broadcast channel is requested, the designation information is switched in ascending order. If there are a plurality of identical designation information, the branch numbers are switched in ascending order in the same designation information, and If there are a plurality of numbers, up channel selection means for switching the channel numbers in ascending order in the same branch number,
In the state where the down-selection of the broadcast channel is requested, the designation information is switched in descending order. If there is a plurality of identical designation information, the branch numbers are switched in descending order in the same designation information, and the same branch is switched. 4. The broadcast receiving apparatus according to claim 3, further comprising: down-selection means for switching the channel numbers in descending order among the same branch numbers when there are a plurality of numbers.

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving device to be added,
In a state in which one of the up channel selection and the down channel selection of the broadcast channel is requested, the broadcast information is in the order of type information indicating whether it is television type information or data type information, and for the same type information. Are in the order of the designation information for specifying to which of the plurality of tuning positions the broadcast channel is to be allocated, and in the order of the branch numbers for the same designation information, and in the order of the branch numbers for the same branch number. A broadcast receiving apparatus comprising a tuning control means for performing a tuning operation in a numerical order.

The tuning control means,
In a state where the up-selection of the broadcast channel is requested, the type information is switched in ascending order. If the same type information is present, the designation information is switched in ascending order in the same type information, and the same designation information is changed. When there are a plurality of the same branch numbers, the branch numbers are switched in ascending order in the same designation information, and when there are a plurality of the same branch numbers, the channel numbers are switched in the ascending order among the same branch numbers. Local means,
In a state where the down channel selection of the broadcast channel is requested, the type information is switched in descending order, and if the same type information is present, the designation information is switched in descending order in the same type information, and the same designation information is switched. When there are a plurality of the same branch numbers, the branch numbers are switched in descending order in the same designation information, and when there are a plurality of the same branch numbers, the channel numbers are switched in the descending order among the same branch numbers. 6. The broadcast receiving apparatus according to claim 5, further comprising station means.

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving device to be added,
Channel selection control means for performing a channel selection operation in the order of the branch numbers and for the same branch number in the order of the channel numbers in a state where one of the up channel selection and the down channel selection of the broadcast channel is requested. A broadcast receiving apparatus comprising:

The tuning control means,
In a state where the up-selection of the broadcast channel is requested, the branch numbers are switched in ascending order, and when there are a plurality of the same branch numbers, the up-selection in which the channel numbers are switched in the same branch number in the ascending order Means,
In the state where the down channel selection of the broadcast channel is requested, the branch numbers are switched in descending order, and when there are a plurality of the same branch numbers, the down channel is switched in the same branch number in the descending order. The broadcast receiving apparatus according to claim 7, comprising means.

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving device to be added,
In a state where one of the up channel selection and the down channel selection of the broadcast channel is requested, in the order of the branch numbers, and for the same branch number, the broadcast channel is assigned to any of a plurality of channel selection positions. A broadcast receiving apparatus comprising: a channel selection control unit for performing a channel selection operation in the order of specification information for specifying whether or not to allocate to the same channel, and for the same specification information in the order of the channel number.

The tuning control means,
In a state where the up-selection of the broadcast channel is requested, the branch numbers are switched in ascending order. If the same branch number exists, the designation information is switched in ascending order within the same branch number, and the same designation information is changed. If there are a plurality of, up channel selection means to switch the channel number in ascending order in the same designation information,
When the down channel selection of the broadcast channel is requested, the branch numbers are switched in descending order. If the same branch number exists, the designation information is switched in descending order within the same branch number, and the same designation information is changed. 10. The broadcast receiving apparatus according to claim 9, further comprising: down-selection means for switching the channel numbers in descending order in the same designation information when there are a plurality of.

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving method to be added,
In the state where the up-selection of the broadcast channel is requested, the channel numbers are switched in ascending order, and when there are a plurality of the same channel numbers, the step of switching the branch numbers in the ascending order among the same channel numbers,
A step of switching the channel numbers in descending order in a state where the down-selection of the broadcast channel is requested, and, when there are a plurality of identical channel numbers, switching the branch numbers in descending order among the same channel numbers. A broadcast receiving method, comprising:

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving method to be added,
In a state in which the up-selection of the broadcast channel is requested, the designation information for designating which of the plurality of tuning positions the broadcast channel is assigned to is switched in ascending order, and when there are a plurality of the same designation information, Switching the branch numbers in the same designation information in ascending order, and when there are a plurality of the same branch numbers, switching the channel numbers in the same branch number in the ascending order;
In the state where the down-selection of the broadcast channel is requested, the designation information is switched in descending order. If there is a plurality of identical designation information, the branch numbers are switched in descending order in the same designation information, and the same branch is switched. Switching the channel numbers in descending order among the same branch numbers when there are a plurality of numbers, the broadcast receiving method comprising:

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving method to be added,
In a state where the up-selection of the broadcast channel is requested, the type information indicating whether the broadcast information is television type information or data type information is switched in ascending order, and if the same type information exists, the same type In the information, the designation information for designating which of the plurality of tuning positions the broadcast channel is to be assigned to is switched in ascending order, and when there are a plurality of the same designation information, Switching the branch numbers in ascending order, and when there are a plurality of the same branch numbers, switching the channel numbers in the ascending order in the same branch numbers;
In a state where the down channel selection of the broadcast channel is requested, the type information is switched in descending order, and if the same type information is present, the designation information is switched in descending order in the same type information, and the same designation information is switched. If there are multiple, the branch numbers are switched in descending order in the same designation information, and if there are multiple identical branch numbers, the channel numbers are switched in descending order among the same branch numbers. A broadcast receiving method, comprising:

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving method to be added,
In a state where the up-selection of the broadcast channel is requested, the branch numbers are switched in ascending order, and when there are a plurality of the same branch numbers, the step of switching the channel numbers in the same branch number in the ascending order,
A step of switching the branch numbers in descending order in a state where the down-selection of the broadcast channel is requested, and, when there are a plurality of identical branch numbers, switching the channel numbers in descending order among the same branch numbers. A broadcast receiving method, comprising:

When a plurality of broadcast channels each having a channel number are selectively received, and a plurality of broadcast channels having the same channel number are received, a different branch number is assigned to each of the broadcast channels. In the broadcast receiving method to be added,
In a state where the up-selection of the broadcast channel is requested, the branch numbers are switched in ascending order, and when the same branch number exists, the broadcast channel is changed to a plurality of channel selection positions in the same branch number. Switching designation information specifying which of the positions to assign, in ascending order, and when there are a plurality of identical designation information, switching the channel numbers in ascending order in the same designation information;
When the down channel selection of the broadcast channel is requested, the branch numbers are switched in descending order. If the same branch number exists, the designation information is switched in descending order within the same branch number, and the same designation information is changed. When there are a plurality of broadcast channels, switching the channel numbers in descending order in the same designation information.