VISUAL LIGHT AUDIO INFORMATION TRANSFER SYSTEM

视光音频信息传输系统

• 批准号: 6082000
• 负责人: GEORGE B HOVORKA
• 金额: $ 10万
• 依托单位: TALKING LIGHTS, LLC
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2000-09-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6082000
• 关键词: biomedical equipment development; informatics; sound; visible light; vision aid; vision disorders

The proposed innovation is an inexpensive, visible light audio information transfer system (VLAITS) to transmit data to a personal audio receiver (PAR) that can be used to convey information to visually- impaired users. VLAITS is remarkably inexpensive because it requires no additional or special wiring other than that already typically installed for existing lighting fixtures. The network uses currently installed visible lighting, such as incandescent or fluorescent lighting, as the carrier medium for the data. The PAR receives information transmitted to a user over ambient room lighting and provides it to the user in audio form. The system varies the light output of lighting fixtures to transmit data at a sufficiently rapid rate that there is no perceptible visual flicker in light output. Data encoded in the lamp light is sent to a small personal audio receiver that presents audio information to visually impaired travelers, students or occupants of a building. The system will be developed in connection with visually-impaired users and will be evaluated and tested by these users to maximize its user friendliness and value. PROPOSED COMMERCIAL APPLICATION: A new inexpensive technology for communication of information of particular benefit to visually-impaired users will be developed, consisting of modified ballast transformers to modulate output of light fixtures and personal audio receivers (PAR) to allow the audio information to be presented to users. Commercial products will be the modified ballast transformers, the personal audio receivers and the design of the information transfer system.

提出的创新是一种廉价的可见光音频信息传输系统（VLAITS），用于将数据传输到个人音频接收器（PAR），该接收器可用于向视障用户传递信息。VLAITS非常便宜，因为它不需要额外的或特殊的布线，而不是已经安装在现有的照明装置。该网络使用当前安装的可见照明，如白炽灯或荧光灯，作为数据的载体介质。PAR接收通过环境室内照明传输给用户的信息，并以音频形式提供给用户。该系统改变照明装置的光输出，以足够快的速度传输数据，从而在光输出中没有可察觉的视觉闪烁。灯光中编码的数据被发送到一个小型个人音频接收器，该接收器将音频信息呈现给视力受损的旅行者、学生或建筑物的居住者。该系统将针对视障用户开发，并将由这些用户进行评价和测试，以最大限度地提高其用户友好性和价值。拟议的商业应用：将开发一种新的廉价技术，用于对视障用户特别有益的信息通信，包括改进的镇流器变压器来调制灯具的输出和个人音频接收器（PAR），以允许音频信息呈现给用户。商业产品将是改进型镇流器变压器、个人音频接收器和信息传输系统的设计。