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    • 63. 发明授权
    • System for controlling the distribution and use of rendered digital works through watermaking
    • 通过水印控制渲染数字作品的分发和使用的系统
    • US06233684B1
    • 2001-05-15
    • US08948893
    • 1997-10-10
    • Mark J. StefikGlen W. PetrieSteve A. OkamotoNicholas H. Briggs
    • Mark J. StefikGlen W. PetrieSteve A. OkamotoNicholas H. Briggs
    • H04N7167
    • G06F21/10G06F17/30017G06Q20/14G06T1/0021G06T2201/0064G07F17/0014G07F17/16H04N1/32144H04N21/8358H04N2201/3236H04N2201/3269
    • A trusted rendering system for use in a system for controlling the distribution and use of digital works. A trusted rendering system facilitates the protection of rendered digital works which have been rendered on a system which controls the distribution and use of digital works through the use of dynamically generated watermark information that is embedded in the rendered output. The watermark data typically provides information relating to the owner of the digital work, the rights associated with the rendered copy of the digital work and when and where the digital work was rendered. This information will typically aid in deterring or preventing unauthorized copying of the rendered work to be made. The system for controlling distribution and use of digital works provides for attaching persistent usage rights to a digital work. Digital works are transferred between repositories which are used to request and grant access to digital works. Such repositories are also coupled to credit servers which provide for payment of any fees incurred as a result of accessing a digital work.
    • 一种用于控制数字作品分发和使用的系统中的可信渲染系统。 可信赖的渲染系统有助于保护已经在通过使用嵌入在渲染输出中的动态生成的水印信息来控制数字作品的分发和使用的系统上呈现的渲染数字作品。 水印数据通常提供与数字作品的所有者有关的信息,与数字作品的渲染副本相关联的权利以及何时何地呈现数字作品。 这些信息通常有助于阻止或阻止未经授权的复制所作出的作品。 用于控制数字作品分发和使用的系统提供了对数字作品的持久使用权。 数字作品在用于请求和授予对数字作品的访问的存储库之间进行转移。 这些存储库还耦合到信用服务器,其提供用于支付由于访问数字作业而产生的任何费用。
    • 66. 发明授权
    • Ultrasound position input device
    • 超声位置输入装置
    • US4814552A
    • 1989-03-21
    • US127730
    • 1987-12-02
    • Mark J. StefikJ. Courtenay Heater
    • Mark J. StefikJ. Courtenay Heater
    • G01S5/30G06F3/033G06F3/043G08C21/00
    • G06F3/043G01S5/30G06F3/03545Y10S367/907
    • This invention is an input device, or stylus, for entering hand drawn forms into a computer comprising a writing instrument, a pressure switch for determining whether the instrument is in contact with the writing surface, an acoustic transmitter for triangulating the position of the stylus on the surface, and a wireless transmitter for transmitting data and timing information to the computer. In operation, the stylus transmits an infra red signal which the system receives immediately, and an ultra sound pulse which two microphones receive after a delay which is a function of the speed of sound and the distance of the stylus from each microphone. From this information the system can calculate the position of the stylus. Switches for indicating functions are mounted on the stylus. Multiple stylusses can be used, each transmitting a distinctive identification code so that the system can determine which stylus is the signal source.
    • 本发明是用于将手绘形式输入到计算机中的输入装置或触针,包括书写工具,用于确定仪器是否与书写表面接触的压力开关,用于将触针位置三角测量的声发射器 表面和用于向计算机发送数据和定时信息的无线发射机。 在操作中,触控笔传输系统立即接收到的红外信号,以及两个麦克风在延迟之后接收的超声脉冲,该延迟是声音速度和触针距离每个麦克风的距离的函数。 从这个信息中,系统可以计算出触控笔的位置。 用于指示功能的开关安装在触控笔上。 可以使用多个手写笔,每个都会传输一个独特的识别码,以便系统可以确定哪个手写笔是信号源。