JP2005176111A - Catv system and terminal equipment for catv - Google Patents

Catv system and terminal equipment for catv Download PDF

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JP2005176111A
JP2005176111A JP2003415559A JP2003415559A JP2005176111A JP 2005176111 A JP2005176111 A JP 2005176111A JP 2003415559 A JP2003415559 A JP 2003415559A JP 2003415559 A JP2003415559 A JP 2003415559A JP 2005176111 A JP2005176111 A JP 2005176111A
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catv
broadcast signal
terminal
signal receiving
receiving device
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Masato Ikezawa
真人 池澤
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Maspro Denkoh Corp
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Maspro Denkoh Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a CATV system and terminal equipment for CATV which receive broadcasting signals regardless of the downloading conditions of an operation program for the terminal equipment for the CATV sent from a CATV center station in a subscriber's house. <P>SOLUTION: By distributing the signals of a CATV transmission line pulled into the subscriber's house, connecting them to a broadcasting signal receiver and bidirectional communication equipment and connecting the broadcasting signal receiver and the bidirectional communication equipment by a connection line for transmitting digital signals, the operation program of the broadcasting signal receiver is downloaded through the bidirectional communication equipment to the memory of the broadcasting signal receiver. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は，主にＣＡＴＶシステムに利用されるＣＡＴＶ用端末装置に関し，詳しくは放送信号を受信する装置の動作プログラムを更新するシステム及びこのシステムに用いられるＣＡＴＶ用端末装置に関する。
The present invention relates to a CATV terminal device mainly used in a CATV system, and more particularly to a system for updating an operation program of a device that receives a broadcast signal and a CATV terminal device used in this system.

従来のＣＡＴＶシステムでは，放送信号の受信およびインターネット等の双方向通信を行う場合，それぞれ対応した端末装置を用いて実現していた。（例えば，特許文献１の図１参照）
In the conventional CATV system, when receiving a broadcast signal and performing bidirectional communication such as the Internet, it has been realized by using corresponding terminal devices. (For example, see FIG. 1 of Patent Document 1)

特開２００２−２６１８２１号公報Japanese Patent Application Laid-Open No. 2002-261821

従来のＣＡＴＶシステムにおいて，放送信号受信装置の動作プログラムを更新する場合，一般的には，放送信号を受信する装置に設けたチューナを介して放送受信待機中に動作プログラムをダウンロードしていた。このため，放送信号を受信する装置の動作プログラムをダウンロードしている間は放送信号の受信ができない構成になっていた。また，加入者宅でＣＡＴＶセンター局から送られた放送信号を受信している間は，放送信号を受信する装置の動作プログラムのダウンロードができないといった問題が有った。
In a conventional CATV system, when an operation program of a broadcast signal receiving apparatus is updated, the operation program is generally downloaded while waiting for broadcast reception via a tuner provided in the apparatus that receives the broadcast signal. For this reason, the broadcast signal cannot be received while the operation program of the apparatus that receives the broadcast signal is downloaded. Further, there is a problem that the operation program of the device that receives the broadcast signal cannot be downloaded while the broadcast signal transmitted from the CATV center station is received at the subscriber's home.

そこで本願においては，こうした問題点を解決するためになされたものであり，その目的は，加入者宅で，放送信号を受信する装置の動作プログラムのダウンロード状況に影響されることなく放送信号の受信ができるＣＡＴＶシステムを提供することを課題とする。
他の目的は，加入者宅で放送信号を受信する装置の動作プログラムのダウンロード状況に影響されることなく放送信号の受信ができるＣＡＴＶ用端末装置を提供することを課題とする。
他の目的は，放送信号を受信する装置のプログラムのダウンロードに要する時間を短縮するシステム，及び装置を提供することを課題とする。
Therefore, the present application has been made to solve these problems, and its purpose is to receive broadcast signals without being affected by the download status of the operation program of the device that receives the broadcast signals at the subscriber's home. It is an object of the present invention to provide a CATV system that can perform the above.
Another object of the present invention is to provide a CATV terminal device that can receive broadcast signals without being affected by the download status of the operation program of the device that receives the broadcast signals at the subscriber's home.
Another object of the present invention is to provide a system and a device that can reduce the time required for downloading a program of a device that receives a broadcast signal.

上記課題を解決するために，請求項1の発明は，ＣＡＴＶセンター局，ＣＡＴＶ網，ＣＡＴＶ用端末装置とによるＣＡＴＶシステムにおいて，ＣＡＴＶセンター局は放送信号を送出する放送信号送出手段と，ＣＡＴＶ用端末装置に設けた放送信号受信装置の動作プログラムをＣＡＴＶ用端末装置に送出するプログラム送出手段とを有し，該ＣＡＴＶ用端末装置は，ＣＡＴＶセンター局から送出された放送信号を受信する放送信号受信装置と，ＣＡＴＶセンター局及びＣＡＴＶセンター局を介してＣＡＴＶ網の内部及び外部と双方向通信をする双方向通信装置とを備え，前記放送信号受信装置と前記双方向通信装置は，共にＣＡＴＶ伝送線に接続されると共に，これら２つの装置は互いにディジタル信号を伝送する接続線で接続され，ＣＡＴＶセンター局からＣＡＴＶ用端末装置に送出された，放送信号受信装置の動作プログラムを，該双方向通信装置及びディジタル信号を伝送する接続線を介して，放送信号受信装置の記憶装置にダウンロードするように構成される。
In order to solve the above problems, the invention of claim 1 is a CATV system comprising a CATV center station, a CATV network, and a CATV terminal device, wherein the CATV center station transmits a broadcast signal and a CATV terminal. A broadcast signal receiving device for receiving a broadcast signal sent from a CATV center station, and a program sending means for sending an operation program of the broadcast signal receiving device provided in the device to a CATV terminal device. And a bidirectional communication device for bidirectional communication with the inside and outside of the CATV network via the CATV center station and the CATV center station. Both the broadcast signal receiving device and the bidirectional communication device are connected to the CATV transmission line. At the same time, these two devices are connected by a connection line that transmits digital signals to each other. The operation program of the broadcast signal receiving device sent from the data station to the CATV terminal device is downloaded to the storage device of the broadcast signal receiving device via the bidirectional communication device and the connection line for transmitting the digital signal. Composed.

請求項２の発明は，請求項１に記載のＣＡＴＶシステムで用いられるＣＡＴＶ用端末装置であって，筐体には放送信号受信装置と，ＣＡＴＶ伝送線と接続するための入力端子と，テレビ受像機に映像信号及び音声信号を出力するための出力端子と，ＣＡＴＶセンター局からＣＡＴＶ用端末装置に送出された，前記放送信号受信装置の動作プログラムを，該放送信号受信装置の記憶装置に格納するためのプログラム入力端子を備えるように構成される。
According to a second aspect of the present invention, there is provided a CATV terminal device used in the CATV system according to the first aspect, wherein the housing has a broadcast signal receiving device, an input terminal for connection to a CATV transmission line, and a television receiver. An output terminal for outputting a video signal and an audio signal to the machine, and an operation program of the broadcast signal receiving device sent from the CATV center station to the CATV terminal device are stored in a storage device of the broadcast signal receiving device. The program input terminal is provided.

請求項３の発明は，請求項２に記載のＣＡＴＶ用端末装置において，前記筐体内にＣＡＴＶ伝送線を介して入力されたＣＡＴＶ信号を分岐または分配する分岐・分配手段を備え，筐体に設けた入力端子と前記分岐・分配手段が接続され，該分岐・分配手段の一方の出力と前記放送信号受信装置が接続され，前記分岐・分配手段の他方の出力を筐体に設けたＣＡＴＶ信号出力端子と接続するように構成される。
According to a third aspect of the present invention, in the CATV terminal device according to the second aspect of the present invention, a branching / distributing unit for branching or distributing a CATV signal inputted via a CATV transmission line is provided in the casing. CATV signal output in which the input terminal is connected to the branch / distribution means, one output of the branch / distribution means is connected to the broadcast signal receiving apparatus, and the other output of the branch / distribution means is provided in the housing Configured to connect with terminals.

請求項４の発明は，請求項２に記載のＣＡＴＶ用端末装置において，前記筐体に双方向通信装置と，端末機と接続するためのデータ入出力端子を備え，ＣＡＴＶセンター局からＣＡＴＶ用端末装置に送出された，放送信号受信装置の動作プログラムを，放送信号受信装置の記憶装置にダウンロードするように構成される。
According to a fourth aspect of the present invention, in the CATV terminal device according to the second aspect, the casing includes a bidirectional communication device and a data input / output terminal for connecting to the terminal, and the CATV center station to the CATV terminal. The operation program of the broadcast signal receiving device sent to the device is configured to be downloaded to the storage device of the broadcast signal receiving device.

以上詳述したように，請求項１の発明によれば，ＣＡＴＶセンター局，ＣＡＴＶ網，ＣＡＴＶ用端末装置とによるＣＡＴＶシステムにおいて，ＣＡＴＶセンター局は放送信号を送出する放送信号送出手段と，ＣＡＴＶ用端末装置に設けた放送信号受信装置の動作プログラムをＣＡＴＶ用端末装置に送出するプログラム送出手段とを有し，該ＣＡＴＶ用端末装置は，ＣＡＴＶセンター局から送出された放送信号を受信する放送信号受信装置と，ＣＡＴＶセンター局及びＣＡＴＶセンター局を介してＣＡＴＶ網の内部及び外部と双方向通信をする双方向通信装置とを備え，前記放送信号受信装置と前記双方向通信装置は，共にＣＡＴＶ伝送線に接続されると共に，これら２つの装置は互いにディジタル信号を伝送する接続線で接続され，ＣＡＴＶセンター局からＣＡＴＶ用端末装置に送出された，放送信号受信装置の動作プログラムを，該双方向通信装置及びディジタル信号を伝送する接続線を介して，放送信号受信装置の記憶装置にダウンロードするように構成したので，
加入者宅で，放送信号を受信する装置の動作プログラムのダウンロード状況に影響されることなく放送信号の受信ができる。
また，放送信号を受信する装置の動作プログラムのダウンロードに要する時間を短縮することができる。
As described above in detail, according to the first aspect of the present invention, in the CATV system including the CATV center station, the CATV network, and the CATV terminal device, the CATV center station transmits the broadcast signal to the CATV center station. A program sending means for sending an operation program of the broadcast signal receiving device provided in the terminal device to the CATV terminal device, and the CATV terminal device receives the broadcast signal received from the CATV center station. And a bidirectional communication device that performs bidirectional communication with the inside and outside of the CATV network via the CATV center station and the CATV center station, both of the broadcast signal receiving device and the bidirectional communication device being a CATV transmission line. And these two devices are connected by a connection line for transmitting digital signals to each other. The operation program of the broadcast signal receiving device sent from the data station to the CATV terminal device is downloaded to the storage device of the broadcast signal receiving device via the bidirectional communication device and the connection line for transmitting the digital signal. Because it was configured
At the subscriber's home, the broadcast signal can be received without being affected by the download status of the operation program of the device that receives the broadcast signal.
In addition, the time required for downloading the operation program of the apparatus that receives the broadcast signal can be shortened.

請求項２の発明によれば，請求項１に記載のＣＡＴＶシステムで用いられるＣＡＴＶ用端末装置であって，筐体には放送信号受信装置と，ＣＡＴＶ伝送線と接続するための入力端子と，テレビ受像機に映像信号及び音声信号を出力するための出力端子と，ＣＡＴＶセンター局からＣＡＴＶ用端末装置に送出された，前記放送信号受信装置の動作プログラムを，該放送信号受信装置の記憶装置に格納するためのプログラム入力端子を備えるように構成したので，
双方向通信装置，信号の分岐・分配手段の保守，変更が容易にできる。
According to the second aspect of the present invention, there is provided a CATV terminal device used in the CATV system according to the first aspect, wherein the housing has a broadcast signal receiving device, an input terminal for connection to the CATV transmission line, An output terminal for outputting a video signal and an audio signal to the television receiver, and an operation program of the broadcast signal receiving device sent from the CATV center station to the CATV terminal device are stored in the storage device of the broadcast signal receiving device. Since it is configured to have a program input terminal for storing,
Maintenance and modification of the bidirectional communication device and signal branching / distribution means can be facilitated.

請求項３の発明によれば，請求項２に記載のＣＡＴＶ用端末装置において，前記筐体内にＣＡＴＶ伝送線を介して入力されたＣＡＴＶ信号を分岐または分配する分岐・分配手段を備え，筐体に設けた入力端子と前記分岐・分配手段が接続され，該分岐・分配手段の一方の出力と前記放送信号受信装置が接続され，前記分岐・分配手段の他方の出力を筐体に設けたＣＡＴＶ信号出力端子と接続するように構成したので，
ＣＡＴＶ用端末装置の配線が簡略化でき，信号の分岐・分配手段の保守，変更が容易にできる。
According to a third aspect of the present invention, the CATV terminal device according to the second aspect further comprises branch / distribution means for branching or distributing a CATV signal input via a CATV transmission line in the case. CATV in which an input terminal provided in the branch and distribution means is connected, one output of the branch / distribution means is connected to the broadcast signal receiver, and the other output of the branch / distribution means is provided in a housing. Since it is configured to be connected to the signal output terminal,
The wiring of the CATV terminal device can be simplified, and the signal branching / distributing means can be easily maintained and changed.

請求項４の発明によれば，請求項２に記載のＣＡＴＶ用端末装置において，前記筐体に双方向通信装置と，端末機と接続するためのデータ入出力端子を備え，ＣＡＴＶセンター局からＣＡＴＶ用端末装置に送出された，放送信号受信装置の動作プログラムを，放送信号受信装置の記憶装置にダウンロードするように構成したので，
ＣＡＴＶ用端末装置の配線が簡略化でき，ＣＡＴＶ用端末装置をコンパクトにすることができる。
According to a fourth aspect of the present invention, in the CATV terminal device according to the second aspect, the casing is provided with a bidirectional communication device and a data input / output terminal for connection to the terminal. Because the operation program of the broadcast signal receiving device sent to the terminal device is configured to be downloaded to the storage device of the broadcast signal receiving device.
The wiring of the CATV terminal device can be simplified, and the CATV terminal device can be made compact.

以下に，本発明を具体化した実施形態の例を，図面を基に詳細に説明する。
図４は本発明に係るＣＡＴＶシステムの１例を示し，図１，２，３は前記ＣＡＴＶシステムにおいて使用されるＣＡＴＶ用端末装置の例を示している。
Hereinafter, an example of an embodiment embodying the present invention will be described in detail with reference to the drawings.
FIG. 4 shows an example of a CATV system according to the present invention, and FIGS. 1, 2, and 3 show examples of CATV terminal devices used in the CATV system.

図４に示すように，ＣＡＴＶセンター局１００とＣＡＴＶ用端末装置１はＣＡＴＶ網１０を介して接続されている。ＣＡＴＶセンター局１００において，地上波用受信アンテナ１２０，及び衛星受信アンテナ１１９で受信した放送信号はチューナ１０１〜１０６，変調器１０７を介して混合器１１７に入力される。一方，ＣＡＴＶ用端末装置用動作プログラムの信号はＳＴＢダウンロードサーバー１１１からスイッチングハブ１１２，ＣＭＴＳ１１４〜１１６を介して混合器１１８に入力され，混合器１１７へ入力される。混合器１１７の出力信号はＣＡＴＶセンター局１００からＣＡＴＶ網１０へ送出される。ＣＡＴＶセンター局１００から送出された放送信号とＣＡＴＶ用端末装置用動作プログラムの信号はＣＡＴＶ網１０を介して加入者宅へ伝送される。
As shown in FIG. 4, the CATV center station 100 and the CATV terminal device 1 are connected via a CATV network 10. In the CATV center station 100, broadcast signals received by the terrestrial receiving antenna 120 and the satellite receiving antenna 119 are input to the mixer 117 via the tuners 101 to 106 and the modulator 107. On the other hand, the signal of the CATV terminal device operation program is input from the STB download server 111 to the mixer 118 via the switching hub 112 and the CMTSs 114 to 116, and then input to the mixer 117. The output signal of the mixer 117 is sent from the CATV center station 100 to the CATV network 10. The broadcast signal sent from the CATV center station 100 and the signal of the operation program for the CATV terminal device are transmitted to the subscriber's home via the CATV network 10.

加入者宅へ引き込まれたＣＡＴＶ伝送路１０の引込み線（ＣＡＴＶ伝送線）１８はＣＡＴＶ用端末装置１に接続され，放送信号と双方向通信信号とに分けられて，それぞれテレビジョン受像機２，端末機としてのパーソナルコンピュータ３に接続される。
ＣＡＴＶ用端末装置１の内部では，ＣＡＴＶセンター局１００から送出された放送信号受信装置２００の動作プログラムを放送信号受信装置２００のメモリー１４にダウンロードする。
A lead-in line (CATV transmission line) 18 of the CATV transmission line 10 drawn into the subscriber's home is connected to the CATV terminal device 1 and is divided into a broadcast signal and a two-way communication signal, respectively. It is connected to a personal computer 3 as a terminal.
In the CATV terminal device 1, the operation program of the broadcast signal receiving device 200 transmitted from the CATV center station 100 is downloaded to the memory 14 of the broadcast signal receiving device 200.

次に加入者宅のＣＡＴＶ用端末装置１について詳しく説明する。図１はＣＡＴＶ用端末装置１の１例である。
ＣＡＴＶ用端末装置１ａの筐体にはＣＡＴＶ信号入力端子２０，映像・音声出力端子２１，プログラム入力端子２２が備えられており，その内部には放送信号受信装置２００を内蔵している。
信号分配器１６の入力端子１５はＣＡＴＶ伝送線１８と接続されている。また，信号分配器１６の一方の出力端子は前記ＣＡＴＶ用端末装置１のＣＡＴＶ信号入力端子２０に接続されている。また，双方向通信装置２０１から出力された放送信号受信装置２００の動作用プログラムデータはプログラム入力端子２２を介してＣＡＴＶ用端末装置１に入力される。
ＣＡＴＶ用端末装置１ａはＣＡＴＶセンター局１００から送出された放送信号の中から希望のチャンネルを選局するチューナ１２，チューナ１２の出力信号をテレビジョン受像機２が扱う信号に変換するための信号処理部１７，チューナ１２の制御や放送信号受信装置２００の動作プログラムを受け取る制御部１３，放送信号受信装置２００の動作プログラムやその他のデータを記憶する記憶装置（メモリー）１４で構成されている。
放送信号受信装置２００に入力された信号は，チューナ１２で希望のチャンネルが選局され，信号処理部１７でテレビジョン受像機２が扱う信号に変換介されてテレビジョン受像機２に出力される。
Next, the CATV terminal device 1 at the subscriber's house will be described in detail. FIG. 1 shows an example of a CATV terminal device 1.
The casing of the CATV terminal device 1a is provided with a CATV signal input terminal 20, a video / audio output terminal 21, and a program input terminal 22, in which a broadcast signal receiving device 200 is built.
An input terminal 15 of the signal distributor 16 is connected to a CATV transmission line 18. One output terminal of the signal distributor 16 is connected to the CATV signal input terminal 20 of the CATV terminal device 1. The program data for operation of the broadcast signal receiving apparatus 200 output from the bidirectional communication apparatus 201 is input to the CATV terminal apparatus 1 through the program input terminal 22.
The CATV terminal device 1a is a tuner 12 that selects a desired channel from broadcast signals transmitted from the CATV center station 100, and a signal process for converting the output signal of the tuner 12 into a signal that the television receiver 2 handles. A control unit 13 that receives the operation program of the broadcast signal receiving device 200 and a storage device (memory) 14 that stores the operation program of the broadcast signal receiving device 200 and other data.
The signal input to the broadcast signal receiving apparatus 200 is selected by the tuner 12 and a desired channel is selected. The signal processing unit 17 converts the signal into a signal handled by the television receiver 2 and outputs the signal to the television receiver 2. .

信号分配器１６のもう一方の出力は双方向通信装置２０１に接続される。
双方向通信装置２０１は，ケーブルモデム５とスイッチングハブ４で構成されており，複数のディジタル信号入出力端子を有し，放送信号受信装置２００及びインターネットの通信を行うための端末機としてのパーソナルコンピュータ３等が接続される。双方向通信装置２０１と放送信号受信装置２００はディジタル信号を伝送する接続線２０２で接続されている。ＣＡＴＶ用端末装置用動作プログラムのデータ信号は，双方向通信装置２０１から放送信号受信装置２００に入力され，制御部１３を介してメモリー１４へダウンロードされる。このダウンロードはチューナ１２を介することなく行われるので，放送信号の受信中でも放送信号の受信を妨げることなく行うことができる。なお，チューナ１２はメモリー１４にダウンロードされたデータを基に制御部１３の命令により，選局，変調方式やネットワークＩＤの読み取り等の処理をする。
また，チューナ１２を介してダウンロードする場合はその通信速度は数１００Ｋｂｐｓ程度であるのに対して双方向通信装置２０１でダウンロードする場合は１０〜３０Ｍｂｐｓ程度の速度で通信が可能なのでダウンロードの時間を大幅に短縮することができる。
The other output of the signal distributor 16 is connected to the bidirectional communication device 201.
The two-way communication device 201 includes a cable modem 5 and a switching hub 4 and has a plurality of digital signal input / output terminals, and a personal computer as a terminal for performing communication between the broadcast signal receiving device 200 and the Internet. 3 etc. are connected. The bidirectional communication apparatus 201 and the broadcast signal receiving apparatus 200 are connected by a connection line 202 that transmits a digital signal. The data signal of the operation program for the CATV terminal device is input from the bidirectional communication device 201 to the broadcast signal receiving device 200 and downloaded to the memory 14 via the control unit 13. Since this download is performed without going through the tuner 12, it can be performed without interfering with reception of the broadcast signal even during reception of the broadcast signal. The tuner 12 performs processing such as channel selection, modulation method, and network ID reading according to instructions from the control unit 13 based on the data downloaded to the memory 14.
In addition, when downloading via the tuner 12, the communication speed is about several hundred Kbps, but when downloading with the bidirectional communication apparatus 201, communication is possible at a speed of about 10 to 30 Mbps, so the download time is greatly increased. Can be shortened.

なお，放送信号受信装置２００は１つの筐体に収められており，双方向通信装置２０１は放送信号受信装置２００の筐体と別体になっているので，双方向通信装置２０１のメンテナンスや交換が容易にできる。
なお，インターネット等の通信をしない場合はパーソナルコンピュータ３等を接続しなくても良い。
なお，上記で述べたＣＡＴＶ用端末装置の一部又は全部を１つの筐体に収めたものは一般にセットボックスまたはＳＴＢなどと呼ばれている。
The broadcast signal receiving apparatus 200 is housed in one casing, and the bidirectional communication apparatus 201 is separate from the casing of the broadcast signal receiving apparatus 200. Therefore, maintenance and replacement of the bidirectional communication apparatus 201 are performed. Can be easily done.
Note that the personal computer 3 or the like need not be connected when communication such as the Internet is not performed.
A part or all of the CATV terminal device described above is housed in one housing is generally called a set box or STB.

次に本発明の第２の実施形態として図２を参照して説明する。尚，以下の説明では，上記第１の実施形態のＣＡＴＶ用端末装置装置１ａと同様の構成要素については同一符号を付与し，詳細な説明は省略する。
実施例２と実施例１との違いは，筐体の中に放送信号受信装置２００と信号分配器１６を収めた点である。実施例１に比べてよりコンパクトにＣＡＴＶ用端末装置１ｂをまとめることができる。なお，２３はＣＡＴＶ信号出力端子であり，双方向通信装置２０１と接続するための端子である。
Next, a second embodiment of the present invention will be described with reference to FIG. In the following description, the same components as those in the CATV terminal apparatus 1a of the first embodiment are given the same reference numerals, and detailed description thereof is omitted.
The difference between the second embodiment and the first embodiment is that the broadcast signal receiving device 200 and the signal distributor 16 are housed in a housing. Compared with the first embodiment, the CATV terminal devices 1b can be combined more compactly. Reference numeral 23 denotes a CATV signal output terminal, which is a terminal for connecting to the bidirectional communication apparatus 201.

次に本発明の第３の実施形態として図３を参照して説明する。実施例３と実施例１との違いは，筐体の中に放送信号受信装置２００，信号分配器１６，双方向通信装置２０１，ディジタル信号を伝送する接続線２０２を収めた点である。実施例２に比べて更にコンパクトに装置をまとめることができる。
ディジタル信号を伝送する接続線２０２は，たとえばイーサネット（Ｒ）ケーブル，ＵＳＢ（Ｕｎｉｖｅｒｓａｌ Ｓｅｒｉａｌ Ｂｕｓ）ケーブル等が用いられる。
Next, a third embodiment of the present invention will be described with reference to FIG. The difference between the third embodiment and the first embodiment is that a broadcast signal receiving device 200, a signal distributor 16, a bidirectional communication device 201, and a connection line 202 for transmitting digital signals are housed in a casing. Compared to the second embodiment, the apparatus can be further compacted.
As the connection line 202 for transmitting the digital signal, for example, an Ethernet (R) cable, a USB (Universal Serial Bus) cable or the like is used.

ここで，放送信号送出手段は本実施例の衛星アンテナ１１９，地上波用アンテナ１２０，混合器１１７，１２２，１２３，チューナ１０１〜１０６，変調器１０７が相当する。
また，プログラム送出手段は本実施例のＣＡＴＶ用端末装置ダウンロードサーバー１１１，スイッチングハブ１１２，ＣＭＴＳ１１４〜１１６，混合器１１７，１１８が相当する。
また，分岐・分配手段は本実施例の分配器１６が相当する。分岐器を使用してもよい。
Here, the broadcast signal transmission means corresponds to the satellite antenna 119, the terrestrial antenna 120, the mixers 117, 122, 123, the tuners 101 to 106, and the modulator 107 of this embodiment.
The program sending means corresponds to the CATV terminal download server 111, the switching hub 112, the CMTSs 114 to 116, and the mixers 117 and 118 of this embodiment.
Further, the branching / distributing means corresponds to the distributor 16 of this embodiment. A turnout may be used.

尚，本発明は上記実施の形態に限定されるものではなく，以下に例示するように，本発明の趣旨を逸脱しない範囲で各部の構成を適宜に変更して実施することも可能である。
例えば前記実施例では，双方向通信装置２０１はケーブルモデム５とスイッチングハブ４で構成される例を示したが，スイッチングハブ４の代わりにルーターやその他の機器を用いても良い。
上記実施例の説明は，本発明に関する部分を特に示したものであり，ＣＡＴＶシステム，ＣＡＴＶ用端末装置の一般的な機能については省略する。
The present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing the configuration of each part without departing from the spirit of the present invention, as exemplified below.
For example, in the above-described embodiment, the bidirectional communication apparatus 201 includes the cable modem 5 and the switching hub 4, but a router or other device may be used instead of the switching hub 4.
The description of the above embodiment specifically shows the part related to the present invention, and the general functions of the CATV system and the CATV terminal device are omitted.

本発明に係るＣＡＴＶ用端末装置の実施の形態の１例を示す。1 shows an example of an embodiment of a CATV terminal device according to the present invention. 筐体に放送信号受信装置２００と信号分配器１６を内蔵させた実施の形態の１例を示す。1 shows an example of an embodiment in which a broadcast signal receiving device 200 and a signal distributor 16 are built in a housing. 筐体に放送信号受信装置２００，信号分配器１６，双方向通信装置２０１，ディジタル信号を伝送する接続線２０２を収めた内蔵させた実施の形態の１例を示す。An example of an embodiment in which a broadcast signal receiving device 200, a signal distributor 16, a bidirectional communication device 201, and a connection line 202 for transmitting a digital signal are housed in a housing is shown. 本発明に係るＣＡＴＶシステムの１例を示す。1 shows an example of a CATV system according to the present invention.

符号の説明Explanation of symbols

１…ＣＡＴＶ用端末装置，２…テレビジョン受像機，３…パーソナルコンピュータ，４…スイッチングハブ，５…ケーブルモデム，１０…ＣＡＴＶ網，１２…チューナ，１３…制御部，１４…メモリー，１５…分配器入力端子，１６…分配器，１７…信号処理部，１８…ＣＡＴＶ伝送線，２０…ＣＡＴＶ信号入力端子，２１…映像・音声出力端子，２２…プログラム入力端子，２３…ＣＡＴＶ信号出力端子，２４…データ入出力端子，１００…ＣＡＴＶセンター局，１０１，１０２，１０３，１０４，１０５，１０６…チューナ，１０７…変調器，１０８…ＣＡＴＶ用端末装置管理装置，１０９…ケーブルモデム管理装置，１１０…メールサーバー，１１１…ＣＡＴＶ用端末装置ダウンロードサーバー，１１２…スイッチングハブ，１１３…ルーター，１１４，１１５，１１６…ＣＭＴＳ，１１７，１１８…混合器，１１９…衛星アンテナ，１２０…地上波用アンテナ，１２１…ＷＡＮ接続端子，２００…放送信号受信装置，２０１…双方向通信装置，２０２…ディジタル信号を伝送する接続線。

DESCRIPTION OF SYMBOLS 1 ... CATV terminal device, 2 ... Television receiver, 3 ... Personal computer, 4 ... Switching hub, 5 ... Cable modem, 10 ... CATV network, 12 ... Tuner, 13 ... Control part, 14 ... Memory, 15 ... Distribution Input terminal, 16 ... distributor, 17 ... signal processing unit, 18 ... CATV transmission line, 20 ... CATV signal input terminal, 21 ... video / audio output terminal, 22 ... program input terminal, 23 ... CATV signal output terminal, 24 Data input / output terminal, 100 CATV center station, 101, 102, 103, 104, 105, 106 Tuner, 107 Modulator, 108 CATV terminal management device, 109 Cable modem management device, 110 Mail Server, 111 ... CATV terminal download server, 112 ... Switching hub, 113 ... 114, 115, 116 ... CMTS, 117, 118 ... mixer, 119 ... satellite antenna, 120 ... terrestrial antenna, 121 ... WAN connection terminal, 200 ... broadcast signal receiving device, 201 ... bidirectional communication device, 202 ... Connection lines that transmit digital signals.

Claims (4)

ＣＡＴＶセンター局，ＣＡＴＶ網，ＣＡＴＶ用端末装置とによるＣＡＴＶシステムにおいて，
ＣＡＴＶセンター局は放送信号を送出する放送信号送出手段と，
ＣＡＴＶ用端末装置に設けた放送信号受信装置の動作プログラムをＣＡＴＶ用端末装置に送出するプログラム送出手段とを有し，
該ＣＡＴＶ用端末装置は，ＣＡＴＶセンター局から送出された放送信号を受信する放送信号受信装置と，
ＣＡＴＶセンター局及びＣＡＴＶセンター局を介してＣＡＴＶ網の内部及び外部と双方向通信をする双方向通信装置とを備え，
前記放送信号受信装置と前記双方向通信装置は，共にＣＡＴＶ伝送線に接続されると共に，これら２つの装置は互いにディジタル信号を伝送する接続線で接続され，ＣＡＴＶセンター局からＣＡＴＶ用端末装置に送出された，放送信号受信装置の動作プログラムを，該双方向通信装置及びディジタル信号を伝送する接続線を介して，放送信号受信装置の記憶装置にダウンロードすることを特徴とするＣＡＴＶシステム。
In a CATV system using a CATV center station, a CATV network, and a CATV terminal device,
The CATV center station has broadcast signal sending means for sending a broadcast signal;
A program sending means for sending an operation program of a broadcast signal receiving device provided in the CATV terminal device to the CATV terminal device;
The CATV terminal device includes a broadcast signal receiving device that receives a broadcast signal transmitted from a CATV center station,
A two-way communication device that performs two-way communication with the inside and outside of the CATV network via the CATV center station and the CATV center station,
The broadcast signal receiving device and the bidirectional communication device are both connected to a CATV transmission line, and these two devices are connected to each other via a connection line for transmitting a digital signal, and sent from the CATV center station to the CATV terminal device. A CATV system, wherein the operation program of the broadcast signal receiving device is downloaded to a storage device of the broadcast signal receiving device via the bidirectional communication device and a connection line for transmitting a digital signal.
請求項１に記載のＣＡＴＶシステムで用いられるＣＡＴＶ用端末装置であって，
筐体には放送信号受信装置と，
ＣＡＴＶ伝送線と接続するための入力端子と，
テレビ受像機に映像信号及び音声信号を出力するための出力端子と，
ＣＡＴＶセンター局からＣＡＴＶ用端末装置に送出された，前記放送信号受信装置の動作プログラムを，該放送信号受信装置の記憶装置に格納するためのプログラム入力端子を備えたことを特徴とするＣＡＴＶ用端末装置。
A CATV terminal device used in the CATV system according to claim 1,
The housing has a broadcast signal receiving device,
An input terminal for connection to a CATV transmission line;
An output terminal for outputting a video signal and an audio signal to the television receiver;
A CATV terminal comprising a program input terminal for storing an operation program of the broadcast signal receiving device sent from a CATV center station to a CATV terminal device in a storage device of the broadcast signal receiving device. apparatus.
前記筐体内にＣＡＴＶ伝送線を介して入力されたＣＡＴＶ信号を分岐または分配する分岐・分配手段を備え，
筐体に設けた入力端子と前記分岐・分配手段と接続され，該分岐・分配手段の一方の出力が前記放送信号受信装置と接続され，前記分岐・分配手段の他方の出力が筐体に設けたＣＡＴＶ信号出力端子に接続されていることを特徴とする請求項２に記載のＣＡＴＶ用端末装置。
Branching / distributing means for branching or distributing a CATV signal input via a CATV transmission line in the housing;
An input terminal provided on the casing is connected to the branch / distribution means, one output of the branch / distribution means is connected to the broadcast signal receiving device, and the other output of the branch / distribution means is provided to the casing. The CATV terminal device according to claim 2, wherein the CATV terminal device is connected to a CATV signal output terminal.
前記筐体に双方向通信装置と，
端末機と接続するためのデータ入出力端子を備え，
ＣＡＴＶセンター局からＣＡＴＶ用端末装置に送出された，放送信号受信装置の動作プログラムを，放送信号受信装置の記憶装置にダウンロードすることを特徴とする請求項２に記載のＣＡＴＶ用端末装置。
A bidirectional communication device in the housing;
A data input / output terminal is provided for connection to a terminal.
3. The CATV terminal device according to claim 2, wherein an operation program of the broadcast signal receiving device sent from the CATV center station to the CATV terminal device is downloaded to a storage device of the broadcast signal receiving device.
JP2003415559A 2003-12-12 2003-12-12 Catv system and terminal equipment for catv Pending JP2005176111A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007201911A (en) * 2006-01-27 2007-08-09 Sharp Corp Cable tv receiving system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007201911A (en) * 2006-01-27 2007-08-09 Sharp Corp Cable tv receiving system

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