Dynamic Keyboard Systems for Improved Typing Performance

动态键盘系统可提高打字性能

• 批准号: 6403056
• 负责人: JAMES E SCHROEDER
• 金额: $ 29.35万
• 依托单位: APPLIED HUMAN FACTORS, INC.
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-10 至 2003-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6403056
• 关键词: assistive device /technology; biomedical equipment development; computer program /software; computer system design /evaluation; computer system hardware; human subject; medical rehabilitation related tag; work site

DESCRIPTION (provided by applicant): Dramatic increases in computer speed and the development of on-screen keyboards that send text to commercial software programs provided the foundation for this innovative approach to assisted typing. In Phase I, this new approach "Smart Key Technology (TM)" (SKT) was investigated, further developed, and tested. Using "letter prediction, SKT searches currently loaded dictionaries (files containing word, sentence, and abbreviation lists ordinarily used with word prediction) and identifies all letters that follow the currently typed character string. Depending on the option selected, SKT "identifies" the most likely next letter(s) by removing, graying out, or changing the color of unlikely letters presented on the on-screen keyboard. In the experiment conducted, subjects typed significantly more letters during a set time period when using SKT with an on-screen keyboard under both point-and-click (when the keyboard was unfamiliar) and scanning conditions. Most notable was the dramatic improvement under scanning conditions. Hypothesized sources of performance enhancement are 1) reduced visual scanning time, 2) simpler displays, 3) reduced probability of selecting an incorrect key, and 4) decreased key selection time (for scanning keyboards). In the proposed Phase II work, further enhancements of SKT will be made and two important variations of SKT will be developed and tested. PROPOSED COMMERCIAL APPLICATION: Not available

描述（由申请人提供）：计算机速度和 屏幕上键盘的开发，这些键盘将文本发送到商业软件 计划为这种辅助的创新方法奠定了基础 打字。在第一阶段，这种新方法“智能密钥技术（TM）”（SKT）是 研究，进一步开发和测试。使用“信件预测，SKT 搜索当前已加载字典（包含单词，句子和的文件 缩写列表通常用于单词预测）并确定所有 遵循当前键入字符字符串的字母。取决于 选择选项，SKT“标识”最有可能的下一个字母，通过删除， 灰色，或更改在 屏幕键盘。在进行的实验中，受试者明显打字 在设定的时间段中，将SKT与屏幕键盘一起使用时 在两个点击键（当键盘不熟悉时）和扫描 状况。最值得注意的是扫描下的显着改进 状况。假设的绩效提高来源是1）减少 视觉扫描时间，2）更简单的显示，3）选择的概率降低 一个不正确的键，4）减少了键选择时间（用于扫描键盘）。 在拟议的第二阶段工作中，将进一步增强SKT，并进行两个 将开发和测试SKT的重要变化。 拟议的商业应用： 无法使用