Optical Communications Patents (Class 398)
- Mode (Class 398/44)
- Optical switching (Class 398/45)
- Optical local area network (LAN) (Class 398/58)
- Polarization (Class 398/65)
- Broadcast and distribution system (Class 398/66)
- Hybrid (Class 398/74)
- Subcarrier multiplexing (Class 398/76)
- Code division multiplexing (Class 398/77)
- Wavelength division or frequency division (e.g., Raman, Brillouin, etc.) (Class 398/79)
- Time division (Class 398/98)
- Including optical waveguide (Class 398/141)
- Presence detection (Class 398/151)
- Including polarization (Class 398/152)
- One transmitter, plural receivers (Class 398/153)
- Including synchronization (Class 398/154)
- Including alignment between transmitter and receiver (Class 398/156)
- Including pumping (Class 398/157)
- Including compensation (Class 398/158)
- Including feedback from receiver (Class 398/162)
- Including electrical oscillator (Class 398/163)
- Including optical circuit board (Class 398/164)
- Plural stations (Class 398/165)
- Passive system (Class 398/168)
- Retroreflection (Class 398/170)
- Received signal supplies power distribution to diverse devices (Class 398/171)
- Including visible light modulation (Class 398/172)
Foreign Patent Art Collections
- Diagnostic testing of optical communication (359/110) (Class 398/FOR101)
- Interference signal transmission or elimination (e.g., jamming or antijamming (359/111) (Class 398/FOR102)
- Eavesdropping (359/112) (Class 398/FOR103)
- Duplex (359/113) (Class 398/FOR104)
- Multiplex (359/115) (Class 398/FOR106)
- Underwater (359/141) (Class 398/FOR132)
- Remote control (359/142) (Class 398/FOR133)
- Photophone (359/149) (Class 398/FOR140)
- Optical transceiver (359/152) (Class 398/FOR143)
- Transmitter and receiver system (359/154) (Class 398/FOR145)
- Optical repeater system (359/174) (Class 398/FOR165)
- Transmitter (359/180) (Class 398/FOR171)
- Receiver (359/189) (Class 398/FOR180)
