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Class Information
Number: 250/551
Name: Radiant energy > Photocells; circuits and apparatus > Signal isolator
Description: Subject matter including a light source and an optical link which couples the light source and photocell and wherein an electrical input signal applied to the light source is optically coupled to a detector which provides an electrical output signal having the characteristics of the input signal.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Patent Number Title Of Patent Date Issued
8686382 Opto-isolator that uses a nontransparent hollow tube as the optical waveguide extending between the transmitter and receiver modules of the opto-isolator Apr. 1, 2014
8624213 Optocoupler circuit for gate driver Jan. 7, 2014
8614430 Reset circuit for electronic devices having photoelectric coupler Dec. 24, 2013
8608389 Optical transceiver with lens alignment frame Dec. 17, 2013
8587103 Integrated sensing package structure Nov. 19, 2013
8563957 Photoconductive switch package Oct. 22, 2013
8558103 Switchable solar cell devices Oct. 15, 2013
8546740 Evaluation of a difference signal between output signals of two receiving devices in a sensor apparatus Oct. 1, 2013
8541736 Photoelectric conversion module having dual circuit board and dual dust proofing member Sep. 24, 2013
8472764 Optical power transmission system and method having multiple optical power forms Jun. 25, 2013
8440989 Method and system for a light source assembly supporting direct coupling to an integrated circuit May. 14, 2013
8437639 Operator input device for a robotic surgical system May. 7, 2013
8421001 Method and reference signaling arrangement for supplying a plurality of system components with a common reference signal Apr. 16, 2013
8410462 Optoelectronic apparatus for transmission of an electrical signal Apr. 2, 2013
8410463 Optocoupler devices Apr. 2, 2013
8410464 Optical coupler having first and second terminal boards and first and second conversion elements Apr. 2, 2013
8399872 System and method for using an optical isolator in laser testing Mar. 19, 2013
8400778 Layout schemes and apparatus for multi-phase power switch-mode voltage regulator Mar. 19, 2013
8384055 Output circuit, light-receiver circuit using the same, and photocoupler Feb. 26, 2013
8384011 Optical detection device and electronic equipment for detecting at least one of an X-coordinate and a Y-coordinate of an object Feb. 26, 2013
8373111 Partition type optical sensing device Feb. 12, 2013
8326222 Non-contact signal transmission device having a magnetoresistive element for communicating between mutually insulated electrical circuits Dec. 4, 2012
8324603 Galvanic isolation that incorporates a transformer with an optical link and that can be integrated onto a single semiconductor substrate Dec. 4, 2012
8324602 Optical sensors that reduce specular reflections Dec. 4, 2012
8314413 Optoelectronic device with a built-in fuse mechanism Nov. 20, 2012
8237137 Photoelectronic sensor system having auto-adjustment function Aug. 7, 2012
8232541 Optical sensors that reduce specular reflections Jul. 31, 2012
8227739 Photodetector amplifier circuit for controlling an on state or an off state of an output transistor Jul. 24, 2012
8222591 Proximity sensors with improved ambient light rejection Jul. 17, 2012
8207517 Photo interrupter Jun. 26, 2012
8193481 Method and apparatus for assembling sensor output data with data representing a sensed location on a moving article Jun. 5, 2012
8143608 Package-on-package (POP) optical proximity sensor Mar. 27, 2012
8129671 Power supply dependent optical receiver and amplifier and photocoupler using the same Mar. 6, 2012
8115185 System and/or method for reading, measuring and/or controlling intensity of light emitted from an LED Feb. 14, 2012
8097868 Galvanic optocoupler and method of making Jan. 17, 2012
8097869 Diversity proximity communication Jan. 17, 2012
8071936 Optical sensing device Dec. 6, 2011
8044378 Method of manufacturing photo interrupter including a positioning member with at least one positioning pin integrally provided with a connecting part, and photo interrupter manufactured thereb Oct. 25, 2011
8026474 Device for transferring light signals between two elements relatively movable to one another Sep. 27, 2011
8022379 Beam position sensor for optical switch modules Sep. 20, 2011
8008616 Interrupter Aug. 30, 2011
7964860 Energy saving driving circuit and associated method for a solid state relay Jun. 21, 2011
7956338 Optoelectronic apparatus for transmitting digital and/or analog signals between galvanically separated circuits Jun. 7, 2011
7956339 Single-sided lateral-field and phototransistor-based optoelectronic tweezers Jun. 7, 2011
7947947 LED-based light module package including a ceramic layer and a light sensor May. 24, 2011
7923710 Digital isolator with communication across an isolation barrier Apr. 12, 2011
7902532 Systems and methods involving transducer signals Mar. 8, 2011
7893415 Optical semiconductor relay device for reducing transient voltage between output terminals of the relay and maintaining high operation speed and low capacitance characteristics Feb. 22, 2011
7820959 Photodetector including enhanced light receiving portion Oct. 26, 2010
7804078 Device having galvanic optocoupling Sep. 28, 2010

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