ULTRASONIC SPATIAL SENSING AID FOR THE BLIND

盲人超声波空间感知辅助设备

• 批准号: 3507668
• 负责人: DUEN H YEN
• 金额: $ 12.48万
• 依托单位: MULTIPATH SYSTEMS, INC.
• 依托单位国家: 美国
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-09-30 至 1991-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3507668
• 关键词: auditory discrimination; blind aid; chordate locomotion; orientation; sonar; sound frequency; space perception; ultrasound

The proposed Ultrasonic Spatial Sensing Aid for the Blind is an electronic travel aid designed to provide the blind traveler with spatial contextual information, a necessary prerequisite for mobility. The device operates on the echolocating principle, by broadcasting ultrasound which is reflected by environmental objects. The returning ultrasonic echoes will be electroacoustically transformed into audible sounds encoded with the complete set of sound localization cues responsible for spatial hearing. The subjective impression created for the blind traveler using the proposed aid will be that objects reflecting the ultrasound beam will be proposed aid will be that objects reflecting the ultrasound beam will be heard as external sources of sound positioned in 3-dimensional space. In this way, the blind traveler will be able to more fully appreciate the spatial aspects of the external environment, enabling mobility with greater ease and confidence.

建议的超声空间感知辅助盲人是一个 为盲人旅行者设计的电子旅行辅助设备， 空间背景信息，移动性的必要先决条件。 该装置的运作原理是回声定位，通过广播 由环境物体反射的超声波。选举 超声回波将被电声地转换成可听的 用完整的声音定位线索集编码的声音 负责空间听觉。主观印象是 盲人旅行者使用建议的援助将是对象， 将提出反射超声波束的方法 反射超声波束将被听到作为外部源， 声音定位在三维空间。这样，盲人旅行者 将能够更充分地了解空间方面的 外部环境，使流动性更容易， 信心