Braille display reader

摘要: A portable braille display unit which presents an entire page of characters in response to data stored on a storage medium, such as tape cassette. The is the size conventional page, and may be made self-powered. Each character displayed by cell module spring actuated pins are controlled bimetallic latches. includes six comprise dots each cell. To characters, electrical current applied resistively heat selected ones In this latches bend disengage from pin, allowing compressed move pin upward through surface plate dot. maintains position without requiring power supply.