METHOD AND APPARATUS FOR SECURE DISPLAY OF VISUAL CONTENT
    2.
    发明申请
    METHOD AND APPARATUS FOR SECURE DISPLAY OF VISUAL CONTENT 有权
    用于安全显示视觉内容的方法和装置

    公开(公告)号:US20140013437A1

    公开(公告)日:2014-01-09

    申请号:US13874508

    申请日:2013-05-01

    IPC分类号: G06F21/60

    摘要: Methods and apparatus for displaying visual content on a display such that the content is comprehensible only to an authorized user for a visual display system such as a computer, a television, a video player, a public display system (including but not limited to a movie theater), a mobile phone, an automated teller machine (ATM), voting booths, kiosks, security screening workstations, tactical displays and other systems where information is displayed for viewing.

    摘要翻译: 用于在显示器上显示视觉内容的方法和装置,使得该内容仅对视觉显示系统的授权用户是可理解的,诸如计算机,电视,视频播放器,公共显示系统(包括但不限于电影 剧院),移动电话,自动取款机(ATM),投票亭,报亭,安全检查工作站,战术显示器和其他信息显示供观看的系统。

    Method and apparatus for secure display of visual content
    3.
    发明授权
    Method and apparatus for secure display of visual content 有权
    用于安全显示视觉内容的方法和装置

    公开(公告)号:US08462949B2

    公开(公告)日:2013-06-11

    申请号:US12325191

    申请日:2008-11-29

    IPC分类号: H04K1/02

    摘要: Methods and apparatus for displaying visual content on a display such that the content is comprehensible only to an authorized user for a visual display system such as a computer, a television, a video player, a public display system (including but not limited to a movie theater), a mobile phone, an automated teller machine (ATM), voting booths, kiosks, security screening workstations, tactical displays and other systems where information is displayed for viewing.

    摘要翻译: 用于在显示器上显示视觉内容的方法和装置,使得该内容仅对视觉显示系统的授权用户是可理解的,诸如计算机,电视,视频播放器,公共显示系统(包括但不限于电影 剧院),移动电话,自动取款机(ATM),投票亭,报亭,安全检查工作站,战术显示器和其他信息显示供观看的系统。

    Video-based privacy supporting system

    公开(公告)号:US10282563B2

    公开(公告)日:2019-05-07

    申请号:US12701504

    申请日:2010-02-05

    摘要: Computer display privacy and security for computer systems. In one aspect, the invention provides a computer-controlled system for regulating the interaction between a computer and a user of the computer based on the environment of the computer and the user. For example, the computer-controlled system provided by the invention comprises an input-output device including an image sensor configured to collect facial recognition data proximate to the computer. The system also includes a user security parameter database encoding security parameters associated with the user; the database is also configured to communicate with the security processor. The security processor is configured to receive the facial recognition data and the security parameters associated with the user, and is further configured to at least partially control the operation of the data input device and the data output device in response to the facial recognition data and the security parameters associated with the user.

    Phase Accumulator Generating Reference Phase for Phase Coherent Direct Digital Synthesis Outputs
    5.
    发明申请
    Phase Accumulator Generating Reference Phase for Phase Coherent Direct Digital Synthesis Outputs 有权
    相位相位直接数​​字合成输出的相位累加器产生参考相位

    公开(公告)号:US20110199127A1

    公开(公告)日:2011-08-18

    申请号:US12704840

    申请日:2010-02-12

    申请人: Steven E. Turner

    发明人: Steven E. Turner

    IPC分类号: H03B21/00

    CPC分类号: G06F1/0335 G06F2211/902

    摘要: A phase accumulator generates phase data for a direct digital synthesis (DDS) device based on a reference phase to provide analog sinusoidal outputs that are locked to the reference phase and thus phase coherent. The frequency of a sinusoidal DDS output may be controlled by changing a frequency control word (FCW) provided to the phase accumulator without affecting the incrementing reference phase. The sinusoidal DDS output is based on a multiple of the FCW and the reference phase and thus remains locked to the reference phase, providing phase coherency even when the FCW changes to change the frequency.

    摘要翻译: 相位累加器基于参考相位产生用于直接数字合成(DDS)装置的相位数据,以提供锁定到参考相位并因此相位相干的模拟正弦输出。 可以通过改变提供给相位累加器的频率控制字(FCW)而不影响递增参考相位来控制正弦DDS输出的频率。 正弦DDS输出基于FCW和参考相位的倍数,因此保持锁定到参考相位,即使当FCW改变频率时,也提供相位一致性。

    Coherent phase locked loop
    7.
    发明授权
    Coherent phase locked loop 有权
    相干锁相环

    公开(公告)号:US08664990B2

    公开(公告)日:2014-03-04

    申请号:US13761300

    申请日:2013-02-07

    IPC分类号: H03L7/06

    CPC分类号: H03L7/1976

    摘要: In a fractional-n Phase Locked Loop the frequency control word multiplies by the output of a reference counter to provide the carry bit utilized in n/n+1 switching.

    摘要翻译: 在小数n-锁相环中,频率控制字乘以参考计数器的输出,以提供在n / n + 1切换中使用的进位位。

    ROM-based direct digital synthesizer with pipeline delay circuit
    8.
    发明授权
    ROM-based direct digital synthesizer with pipeline delay circuit 有权
    具有流水线延迟电路的基于ROM的直接数字合成器

    公开(公告)号:US08583714B2

    公开(公告)日:2013-11-12

    申请号:US12704828

    申请日:2010-02-12

    申请人: Steven E. Turner

    发明人: Steven E. Turner

    IPC分类号: G06F1/02

    CPC分类号: G06F1/0328

    摘要: A DDS system is disclosed that is configured to provide a variable clock delay that allows timing of data coming out of the ROM to be adjusted. In one example case, a DDS system is provided that includes a ROM for storing phase-to-amplitude conversion data and generating digital amplitude values corresponding to respective digital phase values, and delay circuitry for adjusting timing of data output by the ROM to compensate for propagation delay of the DDS system. The delay circuitry may include, for instance, delay elements that can be selected alone or in combination to adjust the timing. The timing can be adjusted, for example, by adjusting delay of a clock signal that clocks one or more ROM pipeline registers. The system may include a phase accumulator and DAC, and adjusting the timing may include adjusting delay of a clock signal that clocks one or more DAC pipeline registers.

    摘要翻译: 公开了一种DDS系统,其被配置为提供允许调整从ROM出来的数据定时的可变时钟延迟。 在一个示例情况下,提供了一种DDS系统,其包括用于存储相位到幅度转换数据的ROM并且产生对应于各个数字相位值的数字幅度值的延迟电路,以及用于调整由ROM输出的数据的定时以补偿 DDS系统的传播延迟。 延迟电路可以包括例如可以单独或组合地选择以调整定时的延迟元件。 可以例如通过调整对一个或多个ROM流水线寄存器进行定时的时钟信号的延迟来调整定时。 该系统可以包括相位累加器和DAC,并且调整定时可以包括调整对一个或多个DAC流水线寄存器进行计时的时钟信号的延迟。

    Phase accumulator generating reference phase for phase coherent direct digital synthesis outputs
    9.
    发明授权
    Phase accumulator generating reference phase for phase coherent direct digital synthesis outputs 有权
    相位累加器产生相位相干直接数字合成输出的参考相位

    公开(公告)号:US08115519B2

    公开(公告)日:2012-02-14

    申请号:US12704840

    申请日:2010-02-12

    申请人: Steven E. Turner

    发明人: Steven E. Turner

    IPC分类号: H03B21/00

    CPC分类号: G06F1/0335 G06F2211/902

    摘要: A phase accumulator generates phase data for a direct digital synthesis (DDS) device based on a reference phase to provide analog sinusoidal outputs that are locked to the reference phase and thus phase coherent. The frequency of a sinusoidal DDS output may be controlled by changing a frequency control word (FCW) provided to the phase accumulator without affecting the incrementing reference phase. The sinusoidal DDS output is based on a multiple of the FCW and the reference phase and thus remains locked to the reference phase, providing phase coherency even when the FCW changes to change the frequency.

    摘要翻译: 相位累加器基于参考相位产生用于直接数字合成(DDS)装置的相位数据,以提供锁定到参考相位并因此相位相干的模拟正弦输出。 可以通过改变提供给相位累加器的频率控制字(FCW)而不影响递增参考相位来控制正弦DDS输出的频率。 正弦DDS输出基于FCW和参考相位的倍数,因此保持锁定到参考相位,即使当FCW改变频率时,也提供相位一致性。

    ROM-Based Direct Digital Synthesizer with Pipeline Delay Circuit
    10.
    发明申请
    ROM-Based Direct Digital Synthesizer with Pipeline Delay Circuit 有权
    基于ROM的直接数字合成器与管道延迟电路

    公开(公告)号:US20110199128A1

    公开(公告)日:2011-08-18

    申请号:US12704828

    申请日:2010-02-12

    申请人: Steven E. Turner

    发明人: Steven E. Turner

    IPC分类号: H03B21/00

    CPC分类号: G06F1/0328

    摘要: A DDS system is disclosed that is configured to provide a variable clock delay that allows timing of data coming out of the ROM to be adjusted. In one example case, a DDS system is provided that includes a ROM for storing phase-to-amplitude conversion data and generating digital amplitude values corresponding to respective digital phase values, and delay circuitry for adjusting timing of data output by the ROM to compensate for propagation delay of the DDS system. The delay circuitry may include, for instance, delay elements that can be selected alone or in combination to adjust the timing. The timing can be adjusted, for example, by adjusting delay of a clock signal that clocks one or more ROM pipeline registers. The system may include a phase accumulator and DAC, and adjusting the timing may include adjusting delay of a clock signal that clocks one or more DAC pipeline registers.

    摘要翻译: 公开了一种DDS系统,其被配置为提供允许调整从ROM出来的数据定时的可变时钟延迟。 在一个示例情况下,提供了一种DDS系统,其包括用于存储相位到幅度转换数据的ROM并且产生对应于各个数字相位值的数字幅度值的延迟电路,以及用于调整由ROM输出的数据的定时以补偿 DDS系统的传播延迟。 延迟电路可以包括例如可以单独或组合地选择以调整定时的延迟元件。 可以例如通过调整对一个或多个ROM流水线寄存器进行定时的时钟信号的延迟来调整定时。 该系统可以包括相位累加器和DAC,并且调整定时可以包括调整对一个或多个DAC流水线寄存器进行计时的时钟信号的延迟。