Resources Contact Us Home
Electronic timepiece

Image Number 7 for United States Patent #4212158.

An electronic timepiece having an intermittent driving means for rotating the second hand step by step, in which the second hand may be driven in two or more ways, one of by a large step as driving the second hand at the rate of one step per second and the other is by a small step such as driving the second hand at the rate of ten steps per second. There is provided a large step driving pulse producing circuit, a small step driving pulse producing circuit, a transducer for transducing the pulse into the rotating motion, a large step transmitting means, a small step transmitting means, a train for transmitting the rotating motion to the second hand, and means for changing the pulses applied to the transducer and for changing the transmitting means.

  Recently Added Patents
System, method, and software for researching, analyzing and comparing expert witnesses
Case for electronic device
Bioreactor device, and method and system for fabricating tissues in the bioreactor device
Chip on film (COF) package having test line for testing electrical function of chip and method for manufacturing same
Lock monitoring
Imaging lens with three lens elements, and electronic apparatus having the same
  Randomly Featured Patents
Photo-sensitive element and liquid crystal display with the same
Baby burp cloth
Microfilm camera
Systems, methods and software arrangements for detection of genome copy number variation
Golf club head
Method and apparatus for cooling molten tube
Solid-state image pickup apparatus
Process for producing a vulcanizable rubber composition with silica-based reinforcing filler
Compact manual transaxle
Wrap-spring, variable speed drive arrangement