会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • STRUCTURES AND PROCESSES FOR CONTROLLING ACCESS TO OPTICAL MEDIA
    • 控制光学介质访问的结构和过程
    • US20070143774A1
    • 2007-06-21
    • US11460816
    • 2006-07-28
    • Anoop AgrawalJohn RilumJohn CroninJuan Tonazzi LopezPaul AtkinsonRick MarquardtSteve Parsons
    • Anoop AgrawalJohn RilumJohn CroninJuan Tonazzi LopezPaul AtkinsonRick MarquardtSteve Parsons
    • G11B23/03
    • G11B23/282G02F1/15G02F1/1508G02F1/1523G11B7/24033G11B7/24038G11B7/252G11B20/00086G11B20/00608G11B20/00666G11B20/00876G11B20/00927G11B23/0028G11B23/0035G11B23/0042G11B23/286G11B2220/2537H01Q1/2208H01Q1/40H01Q1/44
    • An optical disc is provided with an associated optical shutter. In a first state, the optical media interferes with the ability of an interrogating laser beam to read data from the optical media, and in a second state, the optical media is substantially transparent, enabling the laser beam to read the disc. A powering circuit is used to cause the optical shutter to transition from a first state to the second state. In one example, an integrated circuit acts as the powering circuit, as well as providing logic and processing functions. The integrated circuit also couples to an RF antenna, enabling the integrated circuit to communicate with an associated RF scanning device. The optical shutter may take various geometric shapes, and typically has an electrochromic material for facilitating state change. The electrochromic material may fill the shutter, or the material may form a pattern. The shutter may be positioned on the disk so that transition edge-effects are reduced, allowing for reduced interference with the laser beam when the optical shutter is in its clear state. The optical shutter does not cover the entire data area of the disc, and in one example, the optical shutter is quite small, allowing for lower cost production, as well as reducing power requirements to transition the electrochromic material. Power requirements may be further reduced by forming the electrochromic in a pattern. A small optical shutter may disable reading of disc, for example, by placing the small shutter over an important section of the disc, such as the lead-in area.
    • 光盘设置有相关的光学快门。 在第一状态下,光学介质妨碍询问激光束从光学介质读取数据的能力,并且在第二状态下,光学介质基本上是透明的,使激光束能够读取光盘。 使用供电电路使光学快门从第一状态转变到第二状态。 在一个示例中,集成电路用作供电电路,以及提供逻辑和处理功能。 集成电路还耦合到RF天线,使得集成电路能够与相关的RF扫描设备通信。 光学快门可以采取各种几何形状,并且通常具有用于促进状态改变的电致变色材料。 电致变色材料可以填充快门,或者材料可以形成图案。 快门可以定位在盘上,使得过渡边缘效应降低,从而当光学快门处于其清除状态时允许减少对激光束的干扰。 光学快门不覆盖盘的整个数据区域,并且在一个示例中,光学快门非常小,从而允许更低的成本生产,以及减少转移电致变色材料的功率需求。 通过以图案形成电致变色可以进一步降低功率需求。 小型光学快门可以禁止光盘的读取,例如,通过将小快门放置在盘的重要部分(例如导入区)上。