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1. 发明授权

US08255555B2 Reception apparatus and method for reducing time delay in channel switching 失效
标题翻译：用于减少信道切换时延的接收装置和方法
公开(公告)号：US08255555B2
公开(公告)日：2012-08-28
申请号：US12575194
申请日：2009-10-07
申请人： Tomoaki Takemura , Yoshikatsu Niwa , Shinya Masunaga , Tsunemitsu Takase , Junichi Otani
发明人： Tomoaki Takemura , Yoshikatsu Niwa , Shinya Masunaga , Tsunemitsu Takase , Junichi Otani
IPC分类号： G06F15/16
CPC分类号： H04N21/64322 , H04N21/4331 , H04N21/4384 , H04N21/44222 , H04N21/6125 , H04N21/6405
摘要： A reception apparatus receiving a stream delivered by multicast through a network includes: a stream receiving a stream of a first channel as a viewing stream and one or more streams of second channels as viewing candidate streams; a buffer section storing the streams of the channels received by the stream reception section; a reproduction processing section performing processing for viewing the stream stored as the viewing stream in the buffer section; and a channel causing, when an instruction to switch over, as a viewing target, from the first channel to any one of the second channels of the streams being received as the viewing candidate streams is input, the reproduction processing section to process as the viewing stream the stream corresponding to the second channel and stored in the buffer section, and the stream to receive the stream as the viewing stream.
摘要翻译：接收通过网络通过多播传送的流的接收装置包括：接收作为观看流的第一频道的流和作为观看候选流的一个或多个第二频道的流的流; 存储由流接收部接收的信道的流的缓冲部; 再现处理部分执行用于观看在缓冲部分中作为观看流存储的流的处理; 以及当作为观看候选流被输入作为观看目标的切换指示从第一通道传送到正在接收的流的第二通道中的任何一个的通道，所述再现处理部分作为观看进行处理流对应于第二信道的流并存储在缓冲区中，流接收流作为观看流。

2. 发明申请

US20090070499A1 CONTENT REPRODUCTION APPRATUS, CONTENT REPRODUCTION METHOD, AND CONTENT REPRODUCTION SYSTEM 失效
标题翻译：内容再现装置，内容再现方法和内容再现系统
公开(公告)号：US20090070499A1
公开(公告)日：2009-03-12
申请号：US12204784
申请日：2008-09-04
申请人： Tsunemitsu Takase , Yoshikatsu Niwa , Shinya Masunaga , Tomoaki Takemura , Junichi Otani
发明人： Tsunemitsu Takase , Yoshikatsu Niwa , Shinya Masunaga , Tomoaki Takemura , Junichi Otani
IPC分类号： G06F3/00
CPC分类号： H04N7/17318 , H04N5/76 , H04N5/765 , H04N5/781 , H04N5/783 , H04N5/85 , H04N5/907 , H04N21/234381 , H04N21/4325 , H04N21/4334 , H04N21/44004 , H04N21/440281 , H04N21/47202 , H04N21/6587
摘要： A content reproduction method is provided, which acquires, from a data transmission apparatus, first streaming data that is used to play a content at a first speed, and records the first streaming data on a storage medium. The content reproduction method plays the content at the first speed, based on the stored first streaming data. The content reproduction method also starts acquisition of second streaming data in response to a varied-speed reproduction request for the content, wherein the second streaming data is used to play the content at a second speed, and plays the content at a transition speed based on the stored first streaming data, in response to the varied-speed reproduction request. The content reproduction method plays the content at the second speed based on the second streaming data, after the acquisition of the second streaming data progresses to a reproduction preparation complete state.
摘要翻译：提供一种内容再现方法，其从数据传输装置获取用于以第一速度播放内容的第一流数据，并将第一流数据记录在存储介质上。内容再现方法基于存储的第一流数据以第一速度播放内容。内容再现方法还响应于内容的变速再现请求开始获取第二流数据，其中第二流数据用于以第二速度播放内容，并且以基于存储的第一流数据，响应于变速再现请求。在第二流数据的获取进行到再现准备完成状态之后，内容再现方法基于第二流数据以第二速度播放内容。

3. 发明授权

US08019202B2 Content reproduction appratus, content reproduction method, and content reproduction system with varied-speed reproduction requests 失效
标题翻译：内容再现设备，内容再现方法和具有变速再现请求的内容再现系统
公开(公告)号：US08019202B2
公开(公告)日：2011-09-13
申请号：US12204784
申请日：2008-09-04
申请人： Tsunemitsu Takase , Yoshikatsu Niwa , Shinya Masunaga , Tomoaki Takemura , Junichi Otani
发明人： Tsunemitsu Takase , Yoshikatsu Niwa , Shinya Masunaga , Tomoaki Takemura , Junichi Otani
IPC分类号： H04N5/783 , G06F3/00
CPC分类号： H04N7/17318 , H04N5/76 , H04N5/765 , H04N5/781 , H04N5/783 , H04N5/85 , H04N5/907 , H04N21/234381 , H04N21/4325 , H04N21/4334 , H04N21/44004 , H04N21/440281 , H04N21/47202 , H04N21/6587
摘要： A content reproduction method is provided, which acquires, from a data transmission apparatus, first streaming data that is used to play a content at a first speed, and records the first streaming data on a storage medium. The content reproduction method plays the content at the first speed, based on the stored first streaming data. The content reproduction method also starts acquisition of second streaming data in response to a varied-speed reproduction request for the content, wherein the second streaming data is used to play the content at a second speed, and plays the content at a transition speed based on the stored first streaming data, in response to the varied-speed reproduction request. The content reproduction method plays the content at the second speed based on the second streaming data, after the acquisition of the second streaming data progresses to a reproduction preparation complete state.
摘要翻译：提供一种内容再现方法，其从数据传输装置获取用于以第一速度播放内容的第一流数据，并将第一流数据记录在存储介质上。内容再现方法基于存储的第一流数据以第一速度播放内容。内容再现方法还响应于内容的变速再现请求开始获取第二流数据，其中第二流数据用于以第二速度播放内容，并且以基于存储的第一流数据，响应于变速再现请求。在第二流数据的获取进行到再现准备完成状态之后，内容再现方法基于第二流数据以第二速度播放内容。

4. 发明授权

US07870281B2 Content playback device, content playback method, computer-readable storage medium, and content playback system 有权
标题翻译：内容再现装置，内容回放方法，计算机可读取存储介质和内容再现系统
公开(公告)号：US07870281B2
公开(公告)日：2011-01-11
申请号：US12187485
申请日：2008-08-07
申请人： Shinya Masunaga , Yoshikatsu Niwa , Tsunemitsu Takase , Tomoaki Takemura , Junichi Otani
发明人： Shinya Masunaga , Yoshikatsu Niwa , Tsunemitsu Takase , Tomoaki Takemura , Junichi Otani
IPC分类号： G06F15/16
CPC分类号： H04N9/8042 , G11B27/105 , H04N5/782 , H04N7/17336 , H04N21/4333 , H04N21/47202 , H04N21/6587 , H04N21/8455
摘要： A content playback device has a processor, a memory, a data acquisition portion that acquires streaming data for content from a data transmission device, and a storage portion that stores the acquired streaming data in a storage medium. The content playback device also has a playback portion that plays back the content based on the stored streaming data, a playback control portion that causes the playback portion to halt playback of the content in response to a halt playback request, and an acquisition control portion. The acquisition control portion causes the data acquisition portion to stop acquisition of the streaming data in response to the halt playback request, and causes the data acquisition portion to restart acquisition of the streaming data in response to a resume playback request. The storage portion stores, in the storage medium, the streaming data acquired in response to the resume playback request, starting from a position at which acquisition of the streaming data was stopped.
摘要翻译：内容回放装置具有处理器，存储器，从数据发送装置获取内容的流式数据的数据取得部，以及将获取的流式数据存储在存储介质中的存储部。内容再现装置还具有基于所存储的流式数据播放内容的重放部分，响应于停止重放请求使重放部分停止内容的重放的重放控制部分和获取控制部分。采集控制部分使得数据采集部分响应于停止重放请求停止对流数据的采集，并且响应于恢复重放请求使得数据获取部分重新开始流数据的采集。存储部在存储介质中存储响应于恢复重放请求而获取的流数据，从流动数据的获取停止的位置开始。

5. 发明申请

US20100088426A1 RECEPTION APPARATUS RECEPTION METHOD, AND COMPUTER PROGRAM 失效
标题翻译：接收装置接收方法和计算机程序
公开(公告)号：US20100088426A1
公开(公告)日：2010-04-08
申请号：US12575194
申请日：2009-10-07
申请人： Tomoaki TAKEMURA , Yoshikatsu Niwa , Shinya Masunaga , Tsunemitsu Takase , Junichi Otani
发明人： Tomoaki TAKEMURA , Yoshikatsu Niwa , Shinya Masunaga , Tsunemitsu Takase , Junichi Otani
IPC分类号： G06F15/16
CPC分类号： H04N21/64322 , H04N21/4331 , H04N21/4384 , H04N21/44222 , H04N21/6125 , H04N21/6405
摘要： A reception apparatus receiving a stream delivered by multicast through a network includes: a stream reception section receiving a stream of a first channel as a viewing stream and one or more streams of second channels as viewing candidate streams; a buffer section storing the streams of the channels received by the stream reception section; a reproduction processing section performing processing for viewing the stream stored as the viewing stream in the buffer section; and a channel processing section causing, when an instruction to switch over, as a viewing target, from the first channel to any one of the second channels of the streams being received as the viewing candidate streams is input, the reproduction processing section to process as the viewing stream the stream corresponding to the second channel and stored in the buffer section, and the stream reception section to receive the stream as the viewing stream.
摘要翻译：接收通过网络通过多播传送的流的接收装置包括：流接收部分，接收作为观看流的第一信道的流和作为观看候选流的一个或多个第二信道流; 存储由流接收部接收的信道的流的缓冲部; 再现处理部分执行用于观看在缓冲部分中作为观看流存储的流的处理; 以及信道处理部，当作为观看候选流被输入作为观看对象切换的指示从所述第一信道切换到正在接收的流的第二信道中的任一个时，所述再现处理部分被处理为观看流对应于第二频道并存储在缓冲器部分中的流，以及流接收部分，用于接收流作为观看流。

6. 发明申请

US20090043908A1 CONTENT PLAYBACK DEVICE, CONTENT PLAYBACK METHOD, COMPUTER-READABLE STORAGE MEDIUM, AND CONTENT PLAYBACK SYSTEM 有权
标题翻译：内容回放设备，内容回放方法，计算机可读存储介质和内容回放系统
公开(公告)号：US20090043908A1
公开(公告)日：2009-02-12
申请号：US12187485
申请日：2008-08-07
申请人： Shinya Masunaga , Yoshikatsu Niwa , Tsunemitsu Takase , Tomoaki Takemura , Junichi Otani
发明人： Shinya Masunaga , Yoshikatsu Niwa , Tsunemitsu Takase , Tomoaki Takemura , Junichi Otani
IPC分类号： G06F15/16
CPC分类号： H04N9/8042 , G11B27/105 , H04N5/782 , H04N7/17336 , H04N21/4333 , H04N21/47202 , H04N21/6587 , H04N21/8455
摘要： A content playback device has a processor, a memory, a data acquisition portion that acquires streaming data for content from a data transmission device, and a storage portion that stores the acquired streaming data in a storage medium. The content playback device also has a playback portion that plays back the content based on the stored streaming data, a playback control portion that causes the playback portion to halt playback of the content in response to a halt playback request, and an acquisition control portion. The acquisition control portion causes the data acquisition portion to stop acquisition of the streaming data in response to the halt playback request, and causes the data acquisition portion to restart acquisition of the streaming data in response to a resume playback request. The storage portion stores, in the storage medium, the streaming data acquired in response to the resume playback request, starting from a position at which acquisition of the streaming data was stopped.
摘要翻译：内容回放装置具有处理器，存储器，从数据发送装置获取内容的流式数据的数据取得部，以及将获取的流式数据存储在存储介质中的存储部。内容再现装置还具有基于所存储的流式数据播放内容的重放部分，响应于停止重放请求使重放部分停止内容的重放的重放控制部分和获取控制部分。采集控制部分使得数据采集部分响应于停止重放请求停止对流数据的采集，并且响应于恢复重放请求使得数据获取部分重新开始流数据的采集。存储部在存储介质中存储响应于恢复重放请求而获取的流数据，从流动数据的获取停止的位置开始。

7. 发明授权

US08244897B2 Content reproduction apparatus, content reproduction method, and program 失效
标题翻译：内容再现装置，内容再现方法和程序
公开(公告)号：US08244897B2
公开(公告)日：2012-08-14
申请号：US12180402
申请日：2008-07-25
申请人： Yoshikatsu Niwa , Tsunemitsu Takase , Shinya Masunaga , Tomoaki Takemura , Akihiro Muto
发明人： Yoshikatsu Niwa , Tsunemitsu Takase , Shinya Masunaga , Tomoaki Takemura , Akihiro Muto
IPC分类号： G06F15/16 , G06F15/173 , H04J3/14
CPC分类号： H04N7/17318 , H04N21/23406 , H04N21/4307 , H04N21/44004 , H04N21/6587
摘要： A content reproduction apparatus is provided for reproducing variable-speed content. The content reproduction apparatus includes a data acquisition section for obtaining first streaming data and second streaming data, wherein the first streaming data includes first reproduction time data indicating a time to reproduce the first streaming data at a first streaming speed, and wherein the second streaming data includes second reproduction time data indicating a time to reproduce the second streaming data at a second streaming speed. The content reproduction apparatus also includes a reproduction time acquisition section for calculating a third reproduction time according to the first reproduction time data, the second reproduction time data, and a relationship between the first streaming speed and the second streaming speed, the third reproduction time being a time to reproduce the first streaming data at the first streaming speed followed by the second streaming data at the first streaming speed.
摘要翻译：提供内容再现装置用于再现可变速度内容。内容再现装置包括用于获取第一流数据和第二流数据的数据获取部分，其中第一流数据包括指示以第一流速再现第一流数据的时间的第一再现时间数据，并且其中第二流数据包括指示以第二流速再现第二流数据的时间的第二再现时间数据。内容再现装置还包括再现时间获取部分，用于根据第一再现时间数据，第二再现时间数据以及第一流速和第二流速之间的关系来计算第三再现时间，第三再现时间为以第一流速再现第一流数据的时间，随后以第一流速再现第二流数据。

8. 发明申请

US20090245124A1 Receiving device, clock synchronizing method, and computer program 有权
标题翻译：接收设备，时钟同步方法和计算机程序
公开(公告)号：US20090245124A1
公开(公告)日：2009-10-01
申请号：US12381749
申请日：2009-03-16
申请人： Takahiro Ichikawa , Koji Obata , Tomoyuki Sato , Yoshikatsu Niwa , Junichi Otani , Tomoaki Takemura , Shinya Masunaga
发明人： Takahiro Ichikawa , Koji Obata , Tomoyuki Sato , Yoshikatsu Niwa , Junichi Otani , Tomoaki Takemura , Shinya Masunaga
IPC分类号： H04L12/26
CPC分类号： H04L43/087 , H04L43/106
摘要： There is provided a receiving device including: a receiving unit that receives a packet stream; an oscillator; a measuring unit that performs a measuring operation; an acquiring unit that reads the newest time stamp read from the packet stream received by the receiving unit and the newest measurement value measured by the measuring unit with a predetermined period, from a point of time when the packet stream starts to be received; a calculating unit that calculates an accumulation value of the time stamps and the measurement values acquired by the acquiring unit; a comparing unit that compares a difference between the accumulation value of the time stamps and the accumulation value of the measurement values calculated by the calculating unit, and a value corresponding to a network jitter; and a frequency control unit that controls the oscillation frequency of the oscillator based on the comparison result by the comparing unit.
摘要翻译：提供了一种接收装置，包括：接收单元，其接收分组流; 振荡器执行测量操作的测量单元; 获取单元，从分组流开始接收的时间点开始，读取从接收单元接收的分组流中读取的最新时间戳和由测量单元测量的最新测量值; 计算单元，计算所述时间戳的积累值和由所述获取单元获取的测量值; 比较单元，其比较所述时间戳的累积值与由所述计算单元计算出的测量值的累积值之间的差以及与所述网络抖动相对应的值; 以及频率控制单元，其基于比较单元的比较结果来控制振荡器的振荡频率。

9. 发明授权

US07940805B2 Receiving device, clock synchronizing method, and computer program 有权
标题翻译：接收设备，时钟同步方法和计算机程序
公开(公告)号：US07940805B2
公开(公告)日：2011-05-10
申请号：US12381749
申请日：2009-03-16
申请人： Takahiro Ichikawa , Koji Obata , Tomoyuki Sato , Yoshikatsu Niwa , Junichi Otani , Tomoaki Takemura , Shinya Masunaga
发明人： Takahiro Ichikawa , Koji Obata , Tomoyuki Sato , Yoshikatsu Niwa , Junichi Otani , Tomoaki Takemura , Shinya Masunaga
IPC分类号： H04J3/06
CPC分类号： H04L43/087 , H04L43/106
摘要： There is provided a receiving device including: a receiving unit that receives a packet stream; an oscillator; a measuring unit that performs a measuring operation; an acquiring unit that reads the newest time stamp read from the packet stream received by the receiving unit and the newest measurement value measured by the measuring unit with a predetermined period, from a point of time when the packet stream starts to be received; a calculating unit that calculates an accumulation value of the time stamps and the measurement values acquired by the acquiring unit; a comparing unit that compares a difference between the accumulation value of the time stamps and the accumulation value of the measurement values calculated by the calculating unit, and a value corresponding to a network jitter; and a frequency control unit that controls the oscillation frequency of the oscillator based on the comparison result by the comparing unit.
摘要翻译：提供了一种接收装置，包括：接收单元，其接收分组流; 振荡器执行测量操作的测量单元; 获取单元，从分组流开始接收的时间点开始，读取从接收单元接收的分组流中读取的最新时间戳和由测量单元测量的最新测量值; 计算单元，计算所述时间戳的积累值和由所述获取单元获取的测量值; 比较单元，其比较所述时间戳的累积值与由所述计算单元计算出的测量值的累积值之间的差以及与所述网络抖动相对应的值; 以及频率控制单元，其基于比较单元的比较结果来控制振荡器的振荡频率。

10. 发明申请

US20100100635A1 Reception Apparatus, Content Reception Method, and Program 审中-公开
标题翻译：接收设备，内容接收方法和程序
公开(公告)号：US20100100635A1
公开(公告)日：2010-04-22
申请号：US12579048
申请日：2009-10-14
申请人： Tomoaki TAKEMURA , Shinya Masunaga , Yoshikatsu Niwa
发明人： Tomoaki TAKEMURA , Shinya Masunaga , Yoshikatsu Niwa
IPC分类号： G06F15/16
CPC分类号： H04L67/06 , H04L65/4084 , H04L67/322 , H04N7/173 , H04N21/4334 , H04N21/44004 , H04N21/44209 , H04N21/4508 , H04N21/458 , H04N21/4758 , H04N21/4782
摘要： A reception apparatus includes a download section, a storage section, a judgment section, and a presentation section. The download section downloads a content via a network. The storage section stores the content being downloaded. The judgment section judges, based on a transmission rate of the content being downloaded and a standard reproduction rate of the content, whether the content can be reproduced continuously. The presentation section presents a result of the judgment to a user.
摘要翻译：接收装置包括下载部，存储部，判断部，呈现部。下载部分通过网络下载内容。存储部分存储正在下载的内容。判断部基于正在下载的内容的传输速度和内容的标准再现速率来判断内容是否可以连续再现。呈现部分向用户呈现判断结果。

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