JP2000101647A5 - Data transmission method and data transmission device - Google Patents

Data transmission method and data transmission device Download PDF

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Publication number
JP2000101647A5
JP2000101647A5 JP1998287383A JP28738398A JP2000101647A5 JP 2000101647 A5 JP2000101647 A5 JP 2000101647A5 JP 1998287383 A JP1998287383 A JP 1998287383A JP 28738398 A JP28738398 A JP 28738398A JP 2000101647 A5 JP2000101647 A5 JP 2000101647A5
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JP
Japan
Prior art keywords
data
data transmission
isochronous
band
transmitted
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JP1998287383A
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Japanese (ja)
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JP2000101647A (en
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Priority to JP28738398A priority Critical patent/JP2000101647A/en
Priority claimed from JP28738398A external-priority patent/JP2000101647A/en
Publication of JP2000101647A publication Critical patent/JP2000101647A/en
Publication of JP2000101647A5 publication Critical patent/JP2000101647A5/en
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Description

【特許請求の範囲】
【請求項1】 データの送信開始時刻と当該データの送信帯域に基づいて、所定のデ
ータ送信帯域の範囲内で前記データの送信を行うデータ送信方法であって、
送信するデータを固定のデータ送信帯域を持つ等時性データと非固定のデータ送信帯域
を持つ非等時性データとに分け、
等時性データの再生開始時刻を決定し、
前記等時性データの再生開始時刻に基づいて、非等時性データの各々のデータの送信開
始時刻を当該データの再生開始時刻となるように設定し、
前記等時性データの再生開始時刻に基づいて、各時間帯毎の前記非等時性データを送信
できる送信可能帯域を算出し、
前記送信完了時刻と前記送信可能帯域とに基づいて、前記非等時性データの送信開始時
刻と当該非等時性データの各時間帯毎のデータ送信帯域を決定する、
ことを特徴とするデータ送信方法。
【請求項2】 前記非等時性データを送信できる送信可能帯域を算出するステップは

等時性データを送信していない時間帯では、送信可能帯域を前記所定のデータ送信帯域
とし、等時性データを送信している時間帯では、前記所定のデータ送信帯域から送信して
いる前記等時性データの固定のデータ送信帯域を減算した値を送信可能帯域とするステッ
プである、
ことを特徴とする請求項1記載のデータ送信方法。
【請求項3】 前記非等時性データの各時間帯毎のデータ送信帯域を決定するステッ
プは、
同一の時間帯に複数の非等時性データを送信する場合、前記送信可能帯域を同一の時間
帯で送信される前記非等時性データの数で割った値を、当該同一の時間帯での各々の非等
時性データのデータ送信帯域とするステップである、
ことを特徴とする請求項1又は2記載のデータ送信方法。
【請求項4】 データの送信開始時刻と当該データの送信帯域に基づいて、所定のデ
ータ送信帯域の範囲内で前記データの送信を行う送信手段を有するデータ送信装置におい
て、
タイトルを構成するデータと該データを再生する時刻を記述したシナリオを蓄積するシ
ナリオ蓄積手段と、
前記シナリオ蓄積手段に蓄積されている前記シナリオを読み出して解釈するシナリオ解
釈手段と、
前記シナリオ解釈手段で解釈したシナリオから前記データの送信開始時刻と当該データ
の送信帯域を算出して、前記データを送信するためのスケジュールを作成するスケジュー
ル算出手段と、
を備えることを特徴とするデータ送信装置。
【請求項5】 前記シナリオ解釈手段は、
送信するデータを固定のデータ送信帯域を持つ等時性データと非固定のデータ送信帯域
を持つ非等時性データとに分ける手段と、
等時性データの再生開始時刻を決定する手段と、
前記等時性データの再生開始時刻に基づいて、非等時性データの各々のデータの送信完
了時刻を当該データの再生開始時刻となるように設定する手段と、を有し、
前記スケジュール算出手段は、
前記等時性データの再生開始時刻に基づいて、各時間帯毎の前記非等時性データを送信
できる送信可能帯域を算出する手段と、
前記送信完了時刻と前記送信可能帯域とに基づいて、前記非等時性データの送信開始時
刻と当該非等時性データの各時間帯毎のデータ送信帯域を決定する手段と、を有する、
ことを特徴とする請求項4記載のデータ送信装置。
【請求項6】 前記非等時性データを送信できる送信可能帯域を算出する手段は、
等時性データを送信していない時間帯では、送信可能帯域を前記所定のデータ送信帯域
とし、等時性データを送信している時間帯では、前記所定のデータ送信帯域から送信して
いる前記等時性データの固定のデータ送信帯域を減算した値を送信可能帯域とする構成の
請求項5記載のデータ送信装置。
【請求項7】 前記非等時性データの各時間帯毎のデータ送信帯域を決定する手段は

同一の時間帯に複数の非等時性データを送信する場合、前記送信可能帯域を同一の時間
帯で送信される前記非等時性データの数で割った値を、当該同一の時間帯での各々の非等
時性データのデータ送信帯域とする構成の請求項5又は6記載のデータ送信装置。
[Claims]
1. A data transmission method for transmitting the data within a predetermined data transmission band based on a data transmission start time and a data transmission band.
The data to be transmitted is divided into isochronous data having a fixed data transmission band and non-isochronous data having a non-fixed data transmission band.
Determine the playback start time of isochronous data,
Based on the reproduction start time of the isochronous data, the transmission start time of each data of the non-isochronous data is set to be the reproduction start time of the data.
Based on the reproduction start time of the isochronous data, the transmittable band in which the non-isochronous data can be transmitted for each time zone is calculated.
Based on the transmission completion time and the transmittable band, the transmission start time of the non-isochronous data and the data transmission band for each time zone of the non-isochronous data are determined.
A data transmission method characterized by that.
2. The step of calculating the transmittable band in which the non-isochronous data can be transmitted is
In the time zone in which the isochronous data is not transmitted, the transmittable band is set to the predetermined data transmission band, and in the time zone in which the isochronous data is transmitted, the transmission is performed from the predetermined data transmission band. It is a step to set the value obtained by subtracting the fixed data transmission band of isochronous data as the transmittable band.
The data transmission method according to claim 1, wherein the data is transmitted.
3. The step of determining the data transmission band for each time zone of the non-isochronous data is
When transmitting a plurality of non-isochronous data in the same time zone, the value obtained by dividing the transmittable band by the number of the non-isochronous data transmitted in the same time zone is divided in the same time zone. It is a step to set the data transmission band of each non-isochronous data of
The data transmission method according to claim 1 or 2, wherein the data is transmitted.
4. A predetermined data is determined based on a data transmission start time and a data transmission band.
A data transmission device that has a transmission means that transmits the data within the data transmission band.
hand,
A system that accumulates scenarios that describe the data that makes up the title and the time when the data is played back.
Nario storage means and
A scenario solution that reads and interprets the scenario stored in the scenario storage means.
Means of explanation and
The transmission start time of the data and the data from the scenario interpreted by the scenario interpreting means
A schedule for calculating the transmission band of the data and creating a schedule for transmitting the data.
Calculation means and
A data transmission device comprising.
5. The scenario interpreting means is
Isotropic data with a fixed data transmission band and non-fixed data transmission band for the data to be transmitted
Means to separate with non-isochronous data with
A means of determining the playback start time of isochronous data,
Completion of transmission of each data of non-isochronous data based on the reproduction start time of the isochronous data
It has a means for setting the end time to be the playback start time of the data.
The schedule calculation means
The non-isochronous data for each time zone is transmitted based on the reproduction start time of the isochronous data.
Means for calculating the transmittable bandwidth that can be performed,
At the start of transmission of the non-isochronous data based on the transmission completion time and the transmittable band.
It has a means for determining the data transmission band for each time zone of the time zone and the non-isochronous data.
4. The data transmission device according to claim 4.
6. The means for calculating the transmittable band in which the non-isochronous data can be transmitted is
In the time zone when isochronous data is not transmitted, the transmittable band is set to the predetermined data transmission band.
In the time zone when isochronous data is being transmitted, the data is transmitted from the predetermined data transmission band.
The value obtained by subtracting the fixed data transmission band of the isochronous data is set as the transmittable band.
The data transmission device according to claim 5.
7. A means for determining a data transmission band for each time zone of the non-isochronous data is
,
When transmitting multiple non-isochronous data in the same time zone, the transmittable band is set to the same time zone.
The value divided by the number of the non-isochronous data transmitted in the band is each non-equal in the same time zone.
The data transmission device according to claim 5 or 6, wherein the data transmission band of temporal data is used.

【0001】
【発明の属する技術分野】
本発明は、画像データや音声データなどのマルチメディアデータを複数のクライアント
端末(以下、単に「端末」ともいう)に送信するデータ送信方法及びデータ送信装置に
する。特には、プッシュ型のマルチメディアサーバにおいてデータ送信のスケジュールを
最適に行うことができるデータ送信方法及びデータ送信装置に関する。
[0001]
[Technical field to which the invention belongs]
The present invention, multimedia data such as image data and audio data a plurality of client terminals (hereinafter, simply referred to as "terminal") function to <br/> the data transmission method and data transmission equipment to send to. In particular relates to a data transmission method and data transmission equipment which can optimally perform scheduling of data transmission in a push-type multimedia server.

本発明はこのような問題点に鑑みてなされたもので、その目的は、サーバ側で各クライアント端末への送信帯域の割り当てを行うことができ、クライアント端末側ではサーバからのデータ送信を受け、それぞれのデータの受信が終了した時点を表示時刻とすることができるデータ送信方法及びデータ送信装置を提供することである。The present invention has been made in view of such problems, and an object of the present invention is that the server side can allocate a transmission band to each client terminal, and the client terminal side receives data transmission from the server. it is that the reception of respective data provides data transmission method and data transmission equipment which can be a display time to the time of completion.

【0253】
【発明の効果】
以上のように、本発明のデータ送信方法及びデータ送信装置によれば、本発明をプッシ
ュ型サーバに適用することによって、サーバ内でデータ送信のスケジュールを行い、各端
末にそのスケジュール通りにデータの送信を行うことができる。そのため、データの送信
がサーバ主導型になり、クライアント端末では、タイトルを構成する全てのデータを受け
取った時点でそのデータの表示タイミングとすることができる。
[0253]
【Effect of the invention】
As described above, according to the data transmission method and data transmission equipment of the present invention, the data by applying the present invention to a push-type server, to schedule the data transmission in the server, to the schedule to each terminal Can be sent. Therefore, the transmission of data becomes server-driven, and the client terminal can set the display timing of the data when all the data constituting the title is received.

JP28738398A 1998-09-25 1998-09-25 Method and device for transmitting data and recording medium recording data transmission program Withdrawn JP2000101647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28738398A JP2000101647A (en) 1998-09-25 1998-09-25 Method and device for transmitting data and recording medium recording data transmission program

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28738398A JP2000101647A (en) 1998-09-25 1998-09-25 Method and device for transmitting data and recording medium recording data transmission program

Publications (2)

Publication Number Publication Date
JP2000101647A JP2000101647A (en) 2000-04-07
JP2000101647A5 true JP2000101647A5 (en) 2005-11-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP28738398A Withdrawn JP2000101647A (en) 1998-09-25 1998-09-25 Method and device for transmitting data and recording medium recording data transmission program

Country Status (1)

Country Link
JP (1) JP2000101647A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3860957B2 (en) * 2000-08-31 2006-12-20 株式会社日立製作所 Multimedia data transmission device
JP2003044579A (en) * 2001-07-30 2003-02-14 Matsushita Electric Ind Co Ltd Apparatus and method for analysis of scenario information
WO2003065311A1 (en) 2002-01-31 2003-08-07 Sony Corporation Data creating device, data reproducing device, data processing system, and methods therefor
JP4596766B2 (en) * 2003-11-13 2010-12-15 日本電信電話株式会社 MEDIA COMMUNICATION CONTROL METHOD, MEDIA COMMUNICATION CONTROL DEVICE, MEDIA PROVIDING SYSTEM, MEDIA COMMUNICATION CONTROL PROGRAM, AND STORAGE MEDIUM THEREOF
KR101212366B1 (en) * 2010-11-25 2012-12-13 엔에이치엔비즈니스플랫폼 주식회사 System and method for controlling server usage in streaming service based on peer to peer
EP2479684B1 (en) * 2011-01-21 2013-09-25 NTT DoCoMo, Inc. Method and evaluation server for evaluating a plurality of videos
JP6043825B2 (en) * 2015-03-20 2016-12-14 ヤフー株式会社 Information processing apparatus, information processing method, information processing program, and distribution apparatus
JP6235666B2 (en) * 2016-09-07 2017-11-22 ヤフー株式会社 Information processing apparatus, information processing method, information processing program, and distribution apparatus
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