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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 7474681 |
Alternating current light-emitting device |
Jan. 6, 2009 |
| 7468895 |
Method and system for providing a bias voltage for a power input sub-circuit of a switched mode power supply |
Dec. 23, 2008 |
| 7459711 |
Surface mount type photo interrupter and method for manufacturing the same |
Dec. 2, 2008 |
| 7453079 |
Surface mount type photo-interrupter and method for manufacturing the same |
Nov. 18, 2008 |
| 7449707 |
Optical coupling device and electronic apparatus using same that transmits a signal with two light emitting elements and one or two light receiving elements |
Nov. 11, 2008 |
| 7449706 |
Photocoupler with compensation circuit |
Nov. 11, 2008 |
| 7449668 |
Optically powered drive circuit and method for controlling a semiconductor switch |
Nov. 11, 2008 |
| 7439532 |
Solid state relay, electronic device, and method for manufacturing solid state relays having a first control terminal, a first output terminal and a second output terminal as lead terminals |
Oct. 21, 2008 |
| 7435985 |
Zero-crossing point detection circuit |
Oct. 14, 2008 |
| 7359640 |
Optical coupling device and method for bidirectional data communication over a common signal line |
Apr. 15, 2008 |
| 7326947 |
Current transfer ratio temperature coefficient compensation method and apparatus |
Feb. 5, 2008 |
| 7326946 |
Optical module having a reflector element and method of manufacturing the same |
Feb. 5, 2008 |
| 7319232 |
Apparatus and method for high-bandwidth opto-coupler interface |
Jan. 15, 2008 |
| 7307285 |
Optical semiconductor device and a method for manufacturing the same |
Dec. 11, 2007 |
| 7307266 |
Method and apparatus for an optically clocked optoelectronic track and hold device |
Dec. 11, 2007 |
| 7279694 |
Optical output system with auto optical power control for optical mouse |
Oct. 9, 2007 |
| 7274028 |
Characterizing fluorescent and/or phosphorescent materials |
Sep. 25, 2007 |
| 7256409 |
Optical sensor circuit combining functions of open and close type optical sensor circuits |
Aug. 14, 2007 |
| 7256410 |
Solid state relay |
Aug. 14, 2007 |
| 7235803 |
Semiconductor relay device |
Jun. 26, 2007 |
| 7235804 |
Method for manufacturing optocoupler |
Jun. 26, 2007 |
| 7230259 |
Optical coupling device including lead frame having a convexity and method of manufacturing the device |
Jun. 12, 2007 |
| 7211816 |
Method for in-situ continuity check on an optical bus |
May. 1, 2007 |
| 7196313 |
Surface mount multi-channel optocoupler |
Mar. 27, 2007 |
| 7176473 |
Shielding leadframe for semiconductors for optical coupling and electronic apparatus including same |
Feb. 13, 2007 |
| 7170099 |
Optical semiconductor device and a method for manufacturing the same |
Jan. 30, 2007 |
| 7141814 |
Input circuit |
Nov. 28, 2006 |
| 7095267 |
MOSFET drive circuit, programmable power supply and semiconductor test apparatus |
Aug. 22, 2006 |
| 7078718 |
Steering device using optical signal transmission |
Jul. 18, 2006 |
| 7068874 |
Microfluidic sorting device |
Jun. 27, 2006 |
| 7030362 |
Optoelectronic device for meter optical detector module |
Apr. 18, 2006 |
| 7023005 |
Gain compensation for optocoupler feedback circuit |
Apr. 4, 2006 |
| 7019318 |
Dual current-source digital-input circuit for an industrial automation system |
Mar. 28, 2006 |
| 7009195 |
Photoconductive switch module |
Mar. 7, 2006 |
| 7009166 |
Photocoupler, method for producing the same, and electronic device equipped with the photocoupler |
Mar. 7, 2006 |
| 7006876 |
Safety cabinet with simplified operability |
Feb. 28, 2006 |
| 6936833 |
Semiconductor device package having a switcher connecting plural processing elements |
Aug. 30, 2005 |
| 6922531 |
Method and system for encoding optical communication information during automatic laser shutdown restart sequence |
Jul. 26, 2005 |
| 6885016 |
Switching power supply circuit using a silicon based LED for feedback |
Apr. 26, 2005 |
| 6870176 |
Cadmium sulfoselenide surface-mountable optocoupler |
Mar. 22, 2005 |
| 6844779 |
Optically isolated bias control circuit |
Jan. 18, 2005 |
| 6816566 |
Noncontact type signal transmission device and x-ray computed tomography apparatus including the same |
Nov. 9, 2004 |
| 6806482 |
Photovoltaic solid state relay |
Oct. 19, 2004 |
| 6800867 |
System for measuring a parameter inside an adverse environment while protecting the adverse environment against potentially dangerous threats with an active safety barrier circuit |
Oct. 5, 2004 |
| 6777703 |
Fabrication method of optically coupled device |
Aug. 17, 2004 |
| 6759668 |
Photoconductive switch module and manufacturing method thereof |
Jul. 6, 2004 |
| 6759667 |
Photocoupling device and method of manufacturing the same |
Jul. 6, 2004 |
| 6756601 |
High speed optocoupler |
Jun. 29, 2004 |
| 6750463 |
Optical isolation apparatus and method |
Jun. 15, 2004 |
| 6744036 |
Optically coupled sensor for application to combustible liquids |
Jun. 1, 2004 |
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