公开(公告)号：US3921385A

公开(公告)日：1975-11-25

申请号：US45276274

申请日：1974-03-19

申请人： TEXAS INSTRUMENTS INC

发明人： HARDING WAYNE M ,  WILLIAMS NEAL M ,  LECOCQ ANDREW D

IPC分类号： G04G99/00 ,  G04C3/00 ,  G04G9/00 ,  G04G9/10 ,  G04G21/00

CPC分类号： G04G9/107 ,  G04C3/002 ,  G04G9/10

摘要： Disclosed is a solid state watch having an electro optical display which is selectively actuated by a gravity switch contained in the watch casing and positioned such that upon a displacement from a horizontal of the watch the display is actuated. A preferred embodiment utilizes a triangular-shaped cavity having a ball-shaped conductor movably contained therein for engaging a pair of electrical contacts within the cavity for coupling power to the display. Furthermore, the displacement of the watch from horizontal must also be within a selected orientation range. To prevent inadvertant actuations, a delay circuit is included such that the display is not actuated unless and until the gravity switch remains actuated for a first predetermined period of time. Further provided is a de-actuation circuit for de-actuating the display a predetermined period of time after the display has been actuated. An alternative to the de-actuation embodiment renders the display actuated only until the gravity switch is de-activated.

摘要翻译： 公开了一种具有电光显示器的固态手表，该电光显示器由包含在手表壳体中的重力开关选择性地启动，并且定位成使得当从手表的水平位移时，显示器被致动。 一个优选的实施例采用三角形空腔，其具有可移动地容纳在其中的球形导体，用于接合空腔内的一对电触点，用于将功率耦合到显示器。 此外，手表从水平位移也必须在选定的取向范围内。 为了防止无意的致动，包括延迟电路，使得显示器不被致动，除非和直到重力开关保持致动第一预定时间段。 还提供了一种用于在显示器被致动之后预定时间段去激活显示器的去激励电路。 去驱动实施例的替代方案使得显示器被致动直到重力开关被停用。