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    • 2. 发明申请
    • Multi-stream access scheme for high speed access and recording using a hard disk drive
    • 使用硬盘驱动器进行高速访问和记录的多流访问方案
    • US20030131191A1
    • 2003-07-10
    • US10305260
    • 2002-11-25
    • BroadLogic Network Technologies, Inc.
    • Weimin ZhangTony Francesca
    • G06F012/00
    • G11B20/10G11B2020/1074
    • A system for facilitating high-speed access and recording is provided. The system includes a demodulator, an buffer memory and a hard disk. During a write cycle, the demodulator is used to receive one or more content streams. The content streams received by the demodulator are first stored in the buffer memory. When the buffer memory has reached its storage capacity, its contents are then transferred to the hard disk for storage. During a read cycle, contents from the hard disk are read and then stored in the buffer memory. Other components of the system can then access the read-out contents from the buffer memory. The amount of contents retrieved from the hard disk and stored in the buffer memory may be more than what is requested depending on the application requesting the contents. The hard disk further includes different zones. There are two types of zones, namely, high-speed zone and random-access zone. The two different types of zones allow for a number of operating modes, namely, the high-speed mode, the random-access mode and the buffer-cleaning mode. In the high-speed mode, contents from the buffer memory are transferred to the high-speed zone in a continuous manner regardless of the nature or classification of the contents. In the random-access mode, contents from the buffer memory are respectively transferred to the appropriate locations in the random-access zone based on the nature or classification of the contents. In the buffer-cleaning mode, contents stored in the high-speed zone are transferred to appropriate locations in the random-access zone based on the nature or classification of the contents.
    • 提供了一种便于高速访问和记录的系统。 该系统包括解调器,缓冲存储器和硬盘。 在写周期期间,解调器用于接收一个或多个内容流。 由解调器接收的内容流首先存储在缓冲存储器中。 当缓冲存储器达到其存储容量时,其内容将被传送到硬盘进行存储。 在读取周期中,读取硬盘中的内容,然后存储在缓冲存储器中。 然后,系统的其他组件可以从缓冲存储器访问读出的内容。 根据请求内容的应用程序,从硬盘检索并存储在缓冲存储器中的内容量可能大于请求的内容。 硬盘还包括不同的区域。 有两种类型的区域,即高速区和随机接入区。 两种不同类型的区域允许多种操作模式,即高速模式,随机访问模式和缓冲清理模式。 在高速模式中,无论内容的性质或分类如何,来自缓冲存储器的内容都以连续的方式被传送到高速区。 在随机访问模式中,根据内容的性质或分类,将来自缓冲存储器的内容分别传送到随机访问区域中的适当位置。 在缓冲清理模式中,基于内容的性质或分类,将存储在高速区中的内容传送到随机存取区中的适当位置。