专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5144294A Radio frequency message apparatus for aiding ambulatory travel of visually impaired persons 失效
标题翻译：用于帮助视力障碍者进行行走的射频消息装置
公开(公告)号：US5144294A
公开(公告)日：1992-09-01
申请号：US598988
申请日：1990-10-17
申请人： Louis W. Alonzi , David C. Smith , Gary J. Burlak , Marion Mirowski
发明人： Louis W. Alonzi , David C. Smith , Gary J. Burlak , Marion Mirowski
IPC分类号： A61H3/06 , G01S13/76 , G01S13/86 , H04M1/725
CPC分类号： H04M1/725 , A61H3/061 , G01S13/765 , G01S13/86 , A61H2003/063
摘要： A radio frequency message apparatus for aiding ambulatory travel by handicapped persons such as blind individuals. The apparatus generally comprises a portable, radio frequency transceiver and a stationary, radio frequency base transceiver unit. The portable radio frequency transceiver is carried on the person of the handicapped individual and transmits a message request signal in response to manual activation of a transmit button thereon by the handicapped individual. The message request signal is received by the base transceiver, which causes the base transceiver to transmit a pre-recorded message signal back to the portable transceiver unit in radio frequency form. The message signal contains location identifying information such as the streets of an intersection at which the base unit is located. The portable transceiver has a limited transmission range of preferably about 20-50 feet to enable it to interrogate a single base transceiver unit located at an intersection within a metropolitan area or at a display/exhibit within a recreational facility such as a zoological park without accidentally interrogating base transceivers in the near vicinity of the desired base transceiver. In a preferred embodiment, an electronic compass is included within the portable transceiver to further aid a visually handicapped individual in orientating himself/herself with respect to North, South, East and Westerly directions.
摘要翻译：一种无线电频率消息装置，用于帮助诸如盲人等残疾人的走路旅行。该设备通常包括便携式射频收发器和固定的射频基站收发器单元。便携式射频收发机由残疾人个人携带，并响应于残疾人个人对其发送按钮的手动激活而发送消息请求信号。消息请求信号由基站收发机接收，这使得基站收发信机以射频形式将预先记录的消息信号发送回便携式收发信机。消息信号包含位置识别信息，例如基本单元所位于的交叉路口的街道。便携式收发器具有优选约20-50英尺的有限传输范围，以使其能够询问位于大都市区内的交叉点处的单个基站收发器单元或者在诸如动物园之类的娱乐设施内的显示/展示，而不会意外地在所需基站收发器附近询问基本收发器。在优选实施例中，电子罗盘包括在便携式收发器内，以进一步帮助视觉障碍的个体相对于北，南，东和西风方向定向自己。

IPRDB

热门服务

关于我们

友情链接

联系方式