Rotary-head type PCM data recording/reproducing method and apparatus
with a redundancy-reduced control data format
    61.
    发明授权
    Rotary-head type PCM data recording/reproducing method and apparatus with a redundancy-reduced control data format 失效
    旋转头型PCM数据记录/再现方法和具有冗余减少的控制数据格式的装置

    公开(公告)号:US4622600A

    公开(公告)日:1986-11-11

    申请号:US685551

    申请日:1984-12-24

    摘要: A rotary-head PCM data recorder in which PCM signals of m in number, a synchronizing signal, control signals related to the PCM signals, and a parity signal for error detection and correction are formed into data blocks, and data blocks of n in number are recorded on one track of a magnetic tape. Among the control signals, bits of signals common to n data blocks (i.e., information needed once for each track) are formed in distributed data allocated in a group of consecutive blocks or tracks, and multiple block distributive control data are recorded on one track multiple number of times, or multiple track distributive control data are recorded along n block strings a multiple number of times. In reproduction, block or track distributive data are composed to reproduce the control signals. The recorder thus arranged reduces the bit number needed for the control signals and compensates dropout of reproduced data due to scratches on the tape and the like.

    摘要翻译: 旋转磁头PCM数据记录器,其中m个数字的PCM信号,同步信号,与PCM信号相关的控制信号,以及用于错误检测和校正的奇偶校验信号形成数据块,数字数据n 记录在磁带的一个轨道上。 在控制信号中,分配在一组连续块或轨道中的分布式数据中形成n个数据块共同的信号位(即,对于每个磁道一次需要的信息),并且多个块分布控制数据被记录在一个磁道多个 次数或多个磁道分布控制数据沿着n个块串被多次记录。 在再现中,构成块或轨道分布数据以再现控制信号。 如此布置的记录器减少了控制信号所需的位数,并补偿了由于磁带等上的划痕而导致的再现数据的丢失。

    Recording method
    63.
    发明授权
    Recording method 有权
    录制方式

    公开(公告)号:US08588586B2

    公开(公告)日:2013-11-19

    申请号:US11896614

    申请日:2007-09-04

    IPC分类号: H04N9/80

    CPC分类号: G11B27/329

    摘要: A recording method for recording received digital broadcasting on a medium, wherein system resume information including an operation mode at the time of playback and resume information for each piece of program information are separately recorded in a management file as resume information. This makes it possible to provide a recording method that allows the user to perform desired Resume Playback.

    摘要翻译: 一种用于在介质上记录接收的数字广播的记录方法,其中包括在重放时的操作模式的系统恢复信息和用于每个节目信息的恢复信息的记录方法被分别记录在作为恢复信息的管理文件中。 这使得可以提供允许用户执行期望的恢复回放的记录方法。

    Copy control method
    64.
    发明授权
    Copy control method 失效
    复制控制方式

    公开(公告)号:US08532291B2

    公开(公告)日:2013-09-10

    申请号:US13161808

    申请日:2011-06-16

    IPC分类号: H04N7/167

    摘要: The usability while performing copy control can be enhanced in the case of recording a digital broadcast program for which recording of one generation is permitted (“Copy One Generation”). When an output route in the case of copying digital contents from a first recording apparatus to a second recording apparatus is via LAN, authentication is executed between the first recording apparatus and the second recording apparatus. The capability of a move process with a predetermined copy number of multiple copies being kept is confirmed, and dedicated key information is shared to be used for encryption and decryption of the digital contents moved with the predetermined copy number of multiple copies being kept. Then, the digital contents recorded and managed in the first recording apparatus is added with the information about the predetermined copy number of multiple copies, and transmitted.

    摘要翻译: 在记录允许一代记录的数字广播节目(“一代复制”)的情况下,可以增强执行复制控制的可用性。 当在第一记录装置将数字内容复制到第二记录装置的情况下的输出路径经由LAN时,在第一记录装置和第二记录装置之间执行认证。 确认具有保留多个副本的预定拷贝数的移动处理的能力,并且共享专用密钥信息以用于以保持多个副本的预定拷贝数移动的数字内容的加密和解密。 然后,将在第一记录装置中记录和管理的数字内容添加有关多个副本的预定拷贝数的信息,并发送。

    Output control method
    65.
    发明授权
    Output control method 有权
    输出控制方式

    公开(公告)号:US08484754B2

    公开(公告)日:2013-07-09

    申请号:US12606598

    申请日:2009-10-27

    IPC分类号: G06F21/00

    摘要: An output control method for controlling copy operation for a digital broadcast program permitted to be recorded for one generation (copy one generation) with an improved operating convenience. A digital content and a plurality of types of copy control information for controlling the copies of the digital content are received, and in accordance with the copy control information, the digital content is output to a plurality of recording media connected through a network. If first information contained in the copy control information received indicates copy generation information to permit copies for one generation and second information contained in the copy control information indicates “limited number of copies permitted” mode permitting a predetermined number of copies, then the digital content is output to only one of the recording media in a state permitting copying up to the predetermined number.

    摘要翻译: 一种输出控制方法,用于控制允许记录一代(复制一代)的数字广播节目的复制操作,具有改进的操作便利性。 接收用于控制数字内容的副本的数字内容和多种类型的复制控制信息,并且根据复制控制信息,数字内容被输出到通过网络连接的多个记录介质。 如果接收到的复制控制信息中包含的第一信息指示复制产生信息以允许一代的拷贝,并且复制控制信息中包含的第二信息表示允许预定份数的拷贝的“允许的限制拷贝数”模式,则数字内容 在允许复制到预定数量的状态下仅输出到一个记录介质。

    Content transmission apparatus, content reception apparatus and content transmission method
    67.
    发明授权
    Content transmission apparatus, content reception apparatus and content transmission method 有权
    内容发送装置,内容接收装置和内容发送方法

    公开(公告)号:US08468350B2

    公开(公告)日:2013-06-18

    申请号:US13219987

    申请日:2011-08-29

    IPC分类号: H04L29/06

    摘要: A content transmission apparatus including: an authenticator configured (i) to perform authentication, (ii) to share an authentication key, (iii) to request transmission range acknowledgement and authentication information, (iv) to receive a response, and (v) to share an exchange key; an encryptor to encrypt based on the exchange key; and a timer measuring a time interval between transmission of said request for transmission range acknowledgement and reception of a response; wherein, said authenticator measures said time interval using said timer, and if a time measurement value exceeds a predetermined value, said authenticator does not share said exchange key; and wherein, said response of said request for transmission range acknowledgement includes a data generated based on said authentication information and said authentication key, and if said data is incorrect, said authenticator does not share said exchange key.

    摘要翻译: 一种内容发送装置,包括:认证器,被配置为:(i)进行认证,(ii)共享认证密钥,(iii)请求发送范围确认和认证信息,(iv)接收响应,以及(v) 分享交换键; 基于交换密钥加密的加密器; 以及计时器,测量所述传输范围确认请求和响应的接收的传输之间的时间间隔; 其中,所述认证器使用所述定时器测量所述时间间隔,并且如果时间测量值超过预定值,则所述认证器不共享所述交换密钥; 并且其中,所述对传输范围确认请求的所述响应包括基于所述认证信息和所述认证密钥生成的数据,并且如果所述数据不正确,则所述认证器不共享所述交换密钥。

    Digital signal recording/reproducing apparatus, receiving apparatus
    68.
    发明授权
    Digital signal recording/reproducing apparatus, receiving apparatus 有权
    数字信号记录/再现装置,接收装置

    公开(公告)号:US08346061B2

    公开(公告)日:2013-01-01

    申请号:US11400675

    申请日:2006-04-07

    IPC分类号: H04N9/80

    摘要: The digital signal recording/reproducing apparatus inputs a digital signal having a control flag as to a temporary copy permission, and records the digital signal temporarily into a recording medium in accordance with conditions in the control flag, then reproducing the digital signal temporarily from the recording medium in accordance with the conditions in the control flag. The recording/reproducing of the temporary copy is permitted, depending on the following conditions: The recording medium's type, the reproducing point-in-time, the reproducing time-period, and the reproducing frequency. With this method employed, even in a program permitting no recording, the temporary recording/reproducing is permitted under a condition of being limited to the time-shift recording on the receiving side.

    摘要翻译: 数字信号记录/再现装置输入具有临时复制许可的控制标志的数字信号,并根据控制标志的条件将数字信号临时记录到记录介质中,然后从记录中临时再现数字信号 介质按照控制标志的条件。 根据以下条件允许临时拷贝的记录/再现:记录介质的类型,再现时间点,再现时间段和再现频率。 采用这种方法,即使在不允许记录的程序中,在被限制在接收侧的时移记录的条件下允许临时记录/再现。

    Recording apparatus and method for recording a program and management information
    70.
    发明授权
    Recording apparatus and method for recording a program and management information 有权
    用于记录程序和管理信息的记录装置和方法

    公开(公告)号:US08265452B2

    公开(公告)日:2012-09-11

    申请号:US11896615

    申请日:2007-09-04

    IPC分类号: H04N9/80

    CPC分类号: G11B27/329

    摘要: As a method of quickly displaying a thumbnail for navigation display of an AV stream, it is necessary to associate the AV stream with a thumbnail file when recording the thumbnail file separately from the AV stream file. The association, therefore, is performed by use of a serial number of the recorded AV stream file as a name of the related thumbnail file.

    摘要翻译: 作为快速显示用于AV流的导航显示的缩略图的方法,当从AV流文件分离地记录缩略图文件时,需要将AV流与缩略图文件相关联。 因此,通过使用记录的AV流文件的序列号作为相关缩略图文件的名称来执行该关联。