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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 |
| 7622698 |
Detection head |
Nov. 24, 2009 |
| 7619205 |
Image forming apparatus having photo sensors capable of detecting objects of different widths using photocouplers of the same configuration |
Nov. 17, 2009 |
| 7598510 |
Serial interface connecting circuit for supporting communications between different types of serial interfaces |
Oct. 6, 2009 |
| 7598511 |
Energy saving driving circuit and associated method for a solid state relay |
Oct. 6, 2009 |
| 7589338 |
Semiconductor die packages suitable for optoelectronic applications having clip attach structures for angled mounting of dice |
Sep. 15, 2009 |
| 7582887 |
Optocoupler current transfer ratio temperature compensation method and apparatus |
Sep. 1, 2009 |
| 7576345 |
Semiconductor relay |
Aug. 18, 2009 |
| 7564030 |
Method and system for forming temporary images |
Jul. 21, 2009 |
| 7554076 |
Sensor system with modular optical transceivers |
Jun. 30, 2009 |
| 7547902 |
Current transfer ratio temperature coefficient compensation method and apparatus for an optocoupler |
Jun. 16, 2009 |
| 7548699 |
Channel-length modulation (CLM) compensation method and apparatus |
Jun. 16, 2009 |
| 7528399 |
Controlling apparatus for gate driving signal |
May. 5, 2009 |
| 7518098 |
Optoelectronic dust sensor device |
Apr. 14, 2009 |
| 7498552 |
Calibratable microwave circuit with illuminable GaAs-FET, calibrating device and process |
Mar. 3, 2009 |
| 7488964 |
Photo coupler and method for producing the same |
Feb. 10, 2009 |
| 7476890 |
Optical coupling device with a detecting element in the driver that provides uniform intensity of an optical signal |
Jan. 13, 2009 |
| 7476891 |
Fault detection method and apparatus |
Jan. 13, 2009 |
| 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 |
| 7326946 |
Optical module having a reflector element and method of manufacturing the same |
Feb. 5, 2008 |
| 7326947 |
Current transfer ratio temperature coefficient compensation method and apparatus |
Feb. 5, 2008 |
| 7319232 |
Apparatus and method for high-bandwidth opto-coupler interface |
Jan. 15, 2008 |
| 7307266 |
Method and apparatus for an optically clocked optoelectronic track and hold device |
Dec. 11, 2007 |
| 7307285 |
Optical semiconductor device and a method for manufacturing the same |
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 |
| 7256410 |
Solid state relay |
Aug. 14, 2007 |
| 7256409 |
Optical sensor circuit combining functions of open and close type optical sensor circuits |
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 |
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