Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Power supply dependent optical receiver and amplifier and photocoupler using the same










Image Number 2 for United States Patent #8129671.

In an optical receiver and amplifier and an optical coupler, a technique for stabilize operations at turning on/off of a power supply by a simple configuration is desired. An optical receiver and amplifier includes: a photodiode generates a photocurrent in response to a light input; an output section outputs output voltage being a low level or a high level in response to a magnitude of the photocurrent by using a power supply voltage supplied from a power supply; and an output control circuit controls an input voltage of the output section such that the output voltage is set to the low level when the power supply is turned on or off during a period where the power supply voltage is lower than a predetermined value. The output voltage can be set to the low level so that an additional circuit for preventing malfunction is not needed.








 
 
  Recently Added Patents
Delivery of captions, content advisory and other data through digital interface
Securing information by hiding identity on a computing device
Anti-fake battery pack and identification system thereof
Error recovery storage along a memory string
Using network labels without standard-defined syntax and semantics
Image processing apparatus, image processing method, and program
Light irradiation element, image forming structure, and image forming apparatus
  Randomly Featured Patents
Data object tracking system and method
Method and apparatus for removing and replacing components of an airplane
Data input/output apparatus of transport decoder
Nitrocellulose purification
Reducing discomfort caused by electrical stimulation
Split image camera system
Strobe lamp illuminator
System for conveying audio information with a spatial characteristic to a vehicle occupant
Coil transducer with reduced arcing and improved high voltage breakdown performance characteristics
High performance cooling device with heat spreader