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[Search a list of Patent Appplications for class 398]  Class   398OPTICAL COMMUNICATIONS
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[List of Patents for class 398 subclass 1]  1           FAULT RECOVERY
[List of Patents for class 398 subclass 2]  2           Subclass 2 indent level is 1 Bypass inoperative element
[List of Patents for class 398 subclass 3]  3           Subclass 3 indent level is 2 In a ring or loop
[List of Patents for class 398 subclass 4]  4           Subclass 4 indent level is 3 Using a secondary ring or loop
[List of Patents for class 398 subclass 5]  5           Subclass 5 indent level is 2 Spare channel or standby optical fiber
[List of Patents for class 398 subclass 6]  6           Subclass 6 indent level is 1 In a repeater system
[List of Patents for class 398 subclass 7]  7           Subclass 7 indent level is 1 WDM
[List of Patents for class 398 subclass 8]  8           Subclass 8 indent level is 1 TDM
[List of Patents for class 398 subclass 9]  9           DIAGNOSTIC TESTING
[List of Patents for class 398 subclass 10]  10           Subclass 10 indent level is 1 Fault location
[List of Patents for class 398 subclass 11]  11           Subclass 11 indent level is 2 Repeater
[List of Patents for class 398 subclass 12]  12           Subclass 12 indent level is 2 Switch
[List of Patents for class 398 subclass 13]  13           Subclass 13 indent level is 2 Fiber or waveguide
[List of Patents for class 398 subclass 14]  14           Subclass 14 indent level is 2 WDM
[List of Patents for class 398 subclass 15]  15           Subclass 15 indent level is 2 Stop transmission or reduce power
[List of Patents for class 398 subclass 16]  16           Subclass 16 indent level is 1 Test signal
[List of Patents for class 398 subclass 17]  17           Subclass 17 indent level is 1 Fault detection
[List of Patents for class 398 subclass 18]  18           Subclass 18 indent level is 2 Repeater
[List of Patents for class 398 subclass 19]  19           Subclass 19 indent level is 2 Switch
[List of Patents for class 398 subclass 20]  20           Subclass 20 indent level is 2 Optical fiber
[List of Patents for class 398 subclass 21]  21           Subclass 21 indent level is 3 Determined by reflection from break in fiber
[List of Patents for class 398 subclass 22]  22           Subclass 22 indent level is 2 Transceiver
[List of Patents for class 398 subclass 23]  23           Subclass 23 indent level is 2 Transmitter
[List of Patents for class 398 subclass 24]  24           Subclass 24 indent level is 2 Receiver
[List of Patents for class 398 subclass 25]  25           Subclass 25 indent level is 1 Determination of communication parameter
[List of Patents for class 398 subclass 26]  26           Subclass 26 indent level is 2 Signal to noise ratio
[List of Patents for class 398 subclass 27]  27           Subclass 27 indent level is 2 Bit error rate
[List of Patents for class 398 subclass 28]  28           Subclass 28 indent level is 2 Fiber characteristic
[List of Patents for class 398 subclass 29]  29           Subclass 29 indent level is 3 Dispersion
[List of Patents for class 398 subclass 30]  30           Subclass 30 indent level is 2 Using supervisory signal
[List of Patents for class 398 subclass 31]  31           Subclass 31 indent level is 3 Different wavelengths for diagnostic and communication
[List of Patents for class 398 subclass 32]  32           Subclass 32 indent level is 3 Pilot signal
[List of Patents for class 398 subclass 33]  33           Subclass 33 indent level is 3 Monitoring
[List of Patents for class 398 subclass 34]  34           Subclass 34 indent level is 2 WDM system
[List of Patents for class 398 subclass 35]  35           Subclass 35 indent level is 2 TDM system
[List of Patents for class 398 subclass 36]  36           Subclass 36 indent level is 2 Collision detection
[List of Patents for class 398 subclass 37]  37           Subclass 37 indent level is 2 Amplifier or repeater operation
[List of Patents for class 398 subclass 38]  38           Subclass 38 indent level is 2 Power
[List of Patents for class 398 subclass 39]  39           INTERFERENCE SIGNAL TRANSMISSION OR ELIMINATION (E.G., JAMMING OR ANTIJAMMING)
[List of Patents for class 398 subclass 40]  40           EAVESDROPPING
[List of Patents for class 398 subclass 41]  41           DUPLEX
[List of Patents for class 398 subclass 42]  42           Subclass 42 indent level is 1 Wavelength division
[List of Patents for class 398 subclass 43]  43           MULTIPLEX
[List of Patents for class 398 subclass 44]  44           Subclass 44 indent level is 1 Mode
[List of Patents for class 398 subclass 45]  45           Subclass 45 indent level is 1 Optical switching
[List of Patents for class 398 subclass 46]  46           Subclass 46 indent level is 2 Hybrid
[List of Patents for class 398 subclass 47]  47           Subclass 47 indent level is 3 Time and wavelength
[List of Patents for class 398 subclass 48]  48           Subclass 48 indent level is 2 Wavelength
[List of Patents for class 398 subclass 49]  49           Subclass 49 indent level is 3 Router
[List of Patents for class 398 subclass 50]  50           Subclass 50 indent level is 3 Crossconnect
[List of Patents for class 398 subclass 51]  51           Subclass 51 indent level is 3 Including photonic packet switching
[List of Patents for class 398 subclass 52]  52           Subclass 52 indent level is 2 Time
[List of Patents for class 398 subclass 53]  53           Subclass 53 indent level is 3 Including delay
[List of Patents for class 398 subclass 54]  54           Subclass 54 indent level is 3 Including photonic packet switching
[List of Patents for class 398 subclass 55]  55           Subclass 55 indent level is 2 space
[List of Patents for class 398 subclass 56]  56           Subclass 56 indent level is 3 Crossconnect
[List of Patents for class 398 subclass 57]  57           Subclass 57 indent level is 3 Path finding or path routing
[List of Patents for class 398 subclass 58]  58           Subclass 58 indent level is 1 Optical local area network (LAN)
[List of Patents for class 398 subclass 59]  59           Subclass 59 indent level is 2 Ring or loop
[List of Patents for class 398 subclass 60]  60           Subclass 60 indent level is 2 Bus
[List of Patents for class 398 subclass 61]  61           Subclass 61 indent level is 2 Active star
[List of Patents for class 398 subclass 62]  62           Subclass 62 indent level is 3 Repeater
[List of Patents for class 398 subclass 63]  63           Subclass 63 indent level is 2 Passive star
[List of Patents for class 398 subclass 64]  64           Subclass 64 indent level is 3 Repeater
[List of Patents for class 398 subclass 65]  65           Subclass 65 indent level is 1 Polarization
[List of Patents for class 398 subclass 66]  66           Subclass 66 indent level is 1 Broadcast and distribution system
[List of Patents for class 398 subclass 67]  67           Subclass 67 indent level is 2 Bidirectional
[List of Patents for class 398 subclass 68]  68           Subclass 68 indent level is 2 WDM
[List of Patents for class 398 subclass 69]  69           Subclass 69 indent level is 3 With variable frequency channel assignment
[List of Patents for class 398 subclass 70]  70           Subclass 70 indent level is 3 Hub or central office
[List of Patents for class 398 subclass 71]  71           Subclass 71 indent level is 4 Including subscribers
[List of Patents for class 398 subclass 72]  72           Subclass 72 indent level is 5 Bidirectional
[List of Patents for class 398 subclass 73]  73           Subclass 73 indent level is 3 Bus
[List of Patents for class 398 subclass 74]  74           Subclass 74 indent level is 1 Hybrid
[List of Patents for class 398 subclass 75]  75           Subclass 75 indent level is 2 Time and wavelength division
[List of Patents for class 398 subclass 76]  76           Subclass 76 indent level is 1 Subcarrier multiplexing
[List of Patents for class 398 subclass 77]  77           Subclass 77 indent level is 1 Code division multiplexing
[List of Patents for class 398 subclass 78]  78           Subclass 78 indent level is 2 Multiple Access (e.g., CDMA)
[List of Patents for class 398 subclass 79]  79           Subclass 79 indent level is 1 Wavelength division or frequency division (e.g., Raman, Brillouin, etc.)
[List of Patents for class 398 subclass 80]  80           Subclass 80 indent level is 2 Soliton
[List of Patents for class 398 subclass 81]  81           Subclass 81 indent level is 2 Dispersion compensation
[List of Patents for class 398 subclass 82]  82           Subclass 82 indent level is 2 By optical coupling
[List of Patents for class 398 subclass 83]  83           Subclass 83 indent level is 3 Add or drop
[List of Patents for class 398 subclass 84]  84           Subclass 84 indent level is 4 Grating
[List of Patents for class 398 subclass 85]  85           Subclass 85 indent level is 4 Filter
[List of Patents for class 398 subclass 86]  86           Subclass 86 indent level is 3 Prism
[List of Patents for class 398 subclass 87]  87           Subclass 87 indent level is 3 Grating
[List of Patents for class 398 subclass 88]  88           Subclass 88 indent level is 3 Lens
[List of Patents for class 398 subclass 89]  89           Subclass 89 indent level is 2 Multiple Access (e.g., WDMA)
[List of Patents for class 398 subclass 90]  90           Subclass 90 indent level is 2 Electrically controlled single source
[List of Patents for class 398 subclass 91]  91           Subclass 91 indent level is 2 Different sources
[List of Patents for class 398 subclass 92]  92           Subclass 92 indent level is 3 Including pumping
[List of Patents for class 398 subclass 93]  93           Subclass 93 indent level is 2 Including feedback
[List of Patents for class 398 subclass 94]  94           Subclass 94 indent level is 3 Power control
[List of Patents for class 398 subclass 95]  95           Subclass 95 indent level is 3 Wavelength control
[List of Patents for class 398 subclass 96]  96           Subclass 96 indent level is 2 Through free space
[List of Patents for class 398 subclass 97]  97           Subclass 97 indent level is 2 Repeater
[List of Patents for class 398 subclass 98]  98           Subclass 98 indent level is 1 Time division
[List of Patents for class 398 subclass 99]  99           Subclass 99 indent level is 2 Multiple access (e.g., TDMA, CSMA)
[List of Patents for class 398 subclass 100]  100           Subclass 100 indent level is 2 Subscriber system
[List of Patents for class 398 subclass 101]  101           Subclass 101 indent level is 2 By specific optical element
[List of Patents for class 398 subclass 102]  102           Subclass 102 indent level is 2 Including delay
[List of Patents for class 398 subclass 103]  103           Subclass 103 indent level is 2 Through free space
[List of Patents for class 398 subclass 104]  104           UNDERWATER
[List of Patents for class 398 subclass 105]  105           Subclass 105 indent level is 1 Cable repeater
[List of Patents for class 398 subclass 106]  106           REMOTE CONTROL
[List of Patents for class 398 subclass 107]  107           Subclass 107 indent level is 1 Bidirectional (i.e., monitoring or acknowledge)
[List of Patents for class 398 subclass 108]  108           Subclass 108 indent level is 2 Interrogator system
[List of Patents for class 398 subclass 109]  109           Subclass 109 indent level is 1 In industrial environment or hazardous environmrnt
[List of Patents for class 398 subclass 110]  110           Subclass 110 indent level is 2 Through optical fiber or waveguide
[List of Patents for class 398 subclass 111]  111           Subclass 111 indent level is 1 Switching
[List of Patents for class 398 subclass 112]  112           Subclass 112 indent level is 1 Plural
[List of Patents for class 398 subclass 113]  113           Subclass 113 indent level is 1 Through optical fiber or waveguide
[List of Patents for class 398 subclass 114]  114           Subclass 114 indent level is 1 Rotating part
[List of Patents for class 398 subclass 115]  115           HYBRID COMMUNICATION SYSTEM (E.G., OPTICAL AND RF)
[List of Patents for class 398 subclass 116]  116           Subclass 116 indent level is 1 Including specific optical interface
[List of Patents for class 398 subclass 117]  117           Subclass 117 indent level is 2 Housing or mounting
[List of Patents for class 398 subclass 118]  118           OPTICAL COMMUNICATION OVER FREEE SPACE
[List of Patents for class 398 subclass 119]  119           Subclass 119 indent level is 1 Compensation
[List of Patents for class 398 subclass 120]  120           Subclass 120 indent level is 2 Power control
[List of Patents for class 398 subclass 121]  121           Subclass 121 indent level is 1 Satellite system
[List of Patents for class 398 subclass 122]  122           Subclass 122 indent level is 2 Including alignment
[List of Patents for class 398 subclass 123]  123           Subclass 123 indent level is 3 Feedback control
[List of Patents for class 398 subclass 124]  124           Subclass 124 indent level is 2 Space to space
[List of Patents for class 398 subclass 125]  125           Subclass 125 indent level is 2 Space to ground or ground to space
[List of Patents for class 398 subclass 126]  126           Subclass 126 indent level is 1 Specific repeater
[List of Patents for class 398 subclass 127]  127           Subclass 127 indent level is 1 In an office environment
[List of Patents for class 398 subclass 128]  128           Subclass 128 indent level is 1 Transceivers
[List of Patents for class 398 subclass 129]  129           Subclass 129 indent level is 2 Including alignment
[List of Patents for class 398 subclass 130]  130           Subclass 130 indent level is 1 Transmitter and receiver
[List of Patents for class 398 subclass 131]  131           Subclass 131 indent level is 2 Including alignment
[List of Patents for class 398 subclass 132]  132           PHOTOPHONE
[List of Patents for class 398 subclass 133]  133           Subclass 133 indent level is 1 Specific transducer
[List of Patents for class 398 subclass 134]  134           Subclass 134 indent level is 2 Including optical fiber or waveguide
[List of Patents for class 398 subclass 135]  135           OPTICAL TRANSCEIVER
[List of Patents for class 398 subclass 136]  136           Subclass 136 indent level is 1 Including compensation
[List of Patents for class 398 subclass 137]  137           Subclass 137 indent level is 1 Including feedback
[List of Patents for class 398 subclass 138]  138           Subclass 138 indent level is 1 Single device as transmitter and receiver
[List of Patents for class 398 subclass 139]  139           Subclass 139 indent level is 1 Including optical fiber or waveguide
[List of Patents for class 398 subclass 140]  140           TRANSMITTER AND RECEIVER SYSTEM
[List of Patents for class 398 subclass 141]  141           Subclass 141 indent level is 1 Including optical waveguide
[List of Patents for class 398 subclass 142]  142           Subclass 142 indent level is 2 Specific type of fiber or waveguide
[List of Patents for class 398 subclass 143]  143           Subclass 143 indent level is 3 Multimode
[List of Patents for class 398 subclass 144]  144           Subclass 144 indent level is 3 Monomode
[List of Patents for class 398 subclass 145]  145           Subclass 145 indent level is 3 Redundant fibers
[List of Patents for class 398 subclass 146]  146           Subclass 146 indent level is 2 Soliton
[List of Patents for class 398 subclass 147]  147           Subclass 147 indent level is 2 Dispersion compensation
[List of Patents for class 398 subclass 148]  148           Subclass 148 indent level is 3 Using dispersion compensation optical fiber (e.g., DCOF)
[List of Patents for class 398 subclass 149]  149           Subclass 149 indent level is 3 Using equalizing filter (e.g., interferometer, grating)
[List of Patents for class 398 subclass 150]  150           Subclass 150 indent level is 3 Using optical phase conjugation
[List of Patents for class 398 subclass 151]  151           Subclass 151 indent level is 1 Presence detection
[List of Patents for class 398 subclass 152]  152           Subclass 152 indent level is 1 Including polarization
[List of Patents for class 398 subclass 153]  153           Subclass 153 indent level is 1 One transmitter, plural receivers
[List of Patents for class 398 subclass 154]  154           Subclass 154 indent level is 1 Including synchronization
[List of Patents for class 398 subclass 155]  155           Subclass 155 indent level is 2 Clock recovery
[List of Patents for class 398 subclass 156]  156           Subclass 156 indent level is 1 Including alignment between transmitter and receiver
[List of Patents for class 398 subclass 157]  157           Subclass 157 indent level is 1 Including pumping
[List of Patents for class 398 subclass 158]  158           Subclass 158 indent level is 1 Including compensation
[List of Patents for class 398 subclass 159]  159           Subclass 159 indent level is 2 Reducing distortion or dispersion
[List of Patents for class 398 subclass 160]  160           Subclass 160 indent level is 2 Using optical amplifier
[List of Patents for class 398 subclass 161]  161           Subclass 161 indent level is 2 Using delay
[List of Patents for class 398 subclass 162]  162           Subclass 162 indent level is 1 Including feedback from receiver
[List of Patents for class 398 subclass 163]  163           Subclass 163 indent level is 1 Including electrical oscillator
[List of Patents for class 398 subclass 164]  164           Subclass 164 indent level is 1 Including optical circuit board
[List of Patents for class 398 subclass 165]  165           Subclass 165 indent level is 1 Plural stations
[List of Patents for class 398 subclass 166]  166           Subclass 166 indent level is 2 Address directing connections
[List of Patents for class 398 subclass 167]  167           Subclass 167 indent level is 2 Unidirectional or loopback
[List of Patents for class 398 subclass 167.5]  167.5           Subclass 167.5 indent level is 2 Central or master station
[List of Patents for class 398 subclass 168]  168           Subclass 168 indent level is 1 Passive system
[List of Patents for class 398 subclass 169]  169           Subclass 169 indent level is 2 Retroreflection
[List of Patents for class 398 subclass 170]  170           Subclass 170 indent level is 1 Retroreflection
[List of Patents for class 398 subclass 171]  171           Subclass 171 indent level is 1 Received signal supplies power distribution to diverse devices
[List of Patents for class 398 subclass 172]  172           Subclass 172 indent level is 1 Including visible light modulation
[List of Patents for class 398 subclass 173]  173           OPTICAL REPEATER SYSTEM
[List of Patents for class 398 subclass 174]  174           Subclass 174 indent level is 1 Demodulating
[List of Patents for class 398 subclass 175]  175           Subclass 175 indent level is 1 Regenerative
[List of Patents for class 398 subclass 176]  176           Subclass 176 indent level is 2 Modulation conversion
[List of Patents for class 398 subclass 177]  177           Subclass 177 indent level is 1 Monitoring
[List of Patents for class 398 subclass 178]  178           Subclass 178 indent level is 1 Specific optical waveguide
[List of Patents for class 398 subclass 179]  179           Subclass 179 indent level is 2 Soliton
[List of Patents for class 398 subclass 180]  180           Subclass 180 indent level is 1 Specific optical elements
[List of Patents for class 398 subclass 181]  181           Subclass 181 indent level is 1 Supervisory signal by repeater
[List of Patents for class 398 subclass 182]  182           TRANSMITTER
[List of Patents for class 398 subclass 183]  183           Subclass 183 indent level is 1 Having particular modulation
[List of Patents for class 398 subclass 184]  184           Subclass 184 indent level is 2 Including polarization
[List of Patents for class 398 subclass 185]  185           Subclass 185 indent level is 2 Hybrid modulation
[List of Patents for class 398 subclass 186]  186           Subclass 186 indent level is 2 Intensity modulation
[List of Patents for class 398 subclass 187]  187           Subclass 187 indent level is 2 Frequency modulation
[List of Patents for class 398 subclass 188]  188           Subclass 188 indent level is 2 Phase modulation
[List of Patents for class 398 subclass 189]  189           Subclass 189 indent level is 2 Pulse modulation
[List of Patents for class 398 subclass 190]  190           Subclass 190 indent level is 3 Pulse-code
[List of Patents for class 398 subclass 191]  191           Subclass 191 indent level is 3 Pulse time
[List of Patents for class 398 subclass 192]  192           Subclass 192 indent level is 1 Including compensation
[List of Patents for class 398 subclass 193]  193           Subclass 193 indent level is 2 Precompensation (e.g., prechirping, predistortion
[List of Patents for class 398 subclass 194]  194           Subclass 194 indent level is 2 For noise or distortion
[List of Patents for class 398 subclass 195]  195           Subclass 195 indent level is 2 Including feedback
[List of Patents for class 398 subclass 196]  196           Subclass 196 indent level is 3 For wavelength control
[List of Patents for class 398 subclass 197]  197           Subclass 197 indent level is 3 For power control
[List of Patents for class 398 subclass 198]  198           Subclass 198 indent level is 3 For modulator control
[List of Patents for class 398 subclass 199]  199           Subclass 199 indent level is 1 Chirping
[List of Patents for class 398 subclass 200]  200           Subclass 200 indent level is 1 Including optical waveguide
[List of Patents for class 398 subclass 201]  201           Subclass 201 indent level is 1 Including specific optical elements
[List of Patents for class 398 subclass 202]  202           RECEIVER
[List of Patents for class 398 subclass 203]  203           Subclass 203 indent level is 1 Homodyne
[List of Patents for class 398 subclass 204]  204           Subclass 204 indent level is 1 Heterodyne
[List of Patents for class 398 subclass 205]  205           Subclass 205 indent level is 2 Including polarization
[List of Patents for class 398 subclass 206]  206           Subclass 206 indent level is 3 Having feedback
[List of Patents for class 398 subclass 207]  207           Subclass 207 indent level is 2 Specific optical elements
[List of Patents for class 398 subclass 208]  208           Subclass 208 indent level is 1 Including postcompensation
[List of Patents for class 398 subclass 209]  209           Subclass 209 indent level is 2 Feedback
[List of Patents for class 398 subclass 210]  210           Subclass 210 indent level is 2 Amplitude
[List of Patents for class 398 subclass 211]  211           Subclass 211 indent level is 2 Intermodulation
[List of Patents for class 398 subclass 212]  212           Subclass 212 indent level is 1 Including optical element (e.g., lens, mirror, etc.)
[List of Patents for class 398 subclass 213]  213           Subclass 213 indent level is 2 Having feedback
[List of Patents for class 398 subclass 214]  214           Subclass 214 indent level is 1 Including optical waveguide
 
FOREIGN ART COLLECTIONS
 
   FOR000          CLASS-RELATED FOREIGN DOCUMENTS
Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.
   FOR100          OPTICAL COMMUNICATION (359/109)
   FOR101          Subclass FOR101 indent level is 1 Diagnostic testing of optical communication (359/110)
   FOR102          Subclass FOR102 indent level is 1 Interference signal transmission or elimination (e.g., jamming or antijamming (359/111)
   FOR103          Subclass FOR103 indent level is 1 Eavesdropping (359/112)
   FOR104          Subclass FOR104 indent level is 1 Duplex (359/113)
   FOR105          Subclass FOR105 indent level is 2 Wavelength division (359/114)
   FOR106          Subclass FOR106 indent level is 1 Multiplex (359/115)
   FOR107          Subclass FOR107 indent level is 2 Mode (359/116)
   FOR108          Subclass FOR108 indent level is 2 Spatial or switching (359/117)
   FOR109          Subclass FOR109 indent level is 2 Optical local area network (LAN) (359/118)
   FOR110          Subclass FOR110 indent level is 3 Loop (359/119)
   FOR111          Subclass FOR111 indent level is 3 Active star (359/120)
   FOR112          Subclass FOR112 indent level is 3 Passive star (359/121)
   FOR113          Subclass FOR113 indent level is 2 Polarization (359/122)
   FOR114          Subclass FOR114 indent level is 2 Time and frequency division (359/123)
   FOR115          Subclass FOR115 indent level is 2 Wavelength division/frequency division (includes scattering, e.g., Raman, Brillouin, etc.) (359/124)
   FOR116          Subclass FOR116 indent level is 3 Subscriber system (359/125)
   FOR117          Subclass FOR117 indent level is 4 Optical source at only one station (359/126)
   FOR118          Subclass FOR118 indent level is 3 By optical coupling (359/127)
   FOR119          Subclass FOR119 indent level is 4 Switch (359/128)
   FOR120          Subclass FOR120 indent level is 4 Prism (359/129)
   FOR121          Subclass FOR121 indent level is 4 Grating (359/130)
   FOR122          Subclass FOR122 indent level is 4 Lens (359/131)
   FOR123          Subclass FOR123 indent level is 3 Single source, electrically controlled (359/132)
   FOR124          Subclass FOR124 indent level is 3 Different sources (359/133)
   FOR125          Subclass FOR125 indent level is 4 With pump (359/134)
   FOR126          Subclass FOR126 indent level is 2 Time division (359/135)
   FOR127          Subclass FOR127 indent level is 3 Multiple access (e.g., CSMA, CDMA) (359/136)
   FOR128          Subclass FOR128 indent level is 3 Subscriber system (359/137)
   FOR129          Subclass FOR129 indent level is 3 By specific optical element (359/138)
   FOR130          Subclass FOR130 indent level is 4 Optical switch (359/139)
   FOR131          Subclass FOR131 indent level is 3 With delay (359/140)
   FOR132          Subclass FOR132 indent level is 1 Underwater (359/141)
   FOR133          Subclass FOR133 indent level is 1 Remote control (359/142)
   FOR134          Subclass FOR134 indent level is 2 Bidirectional (i.e., monitoring or acknowledge) (359/143)
   FOR135          Subclass FOR135 indent level is 2 In industrial environment (e.g., robot control) (359/144)
   FOR136          Subclass FOR136 indent level is 2 With radio link (359/145)
   FOR137          Subclass FOR137 indent level is 2 With television or radio system (359/146)
   FOR138          Subclass FOR138 indent level is 2 Switching (359/147)
   FOR139          Subclass FOR139 indent level is 2 Plural functions (359/148)
   FOR140          Subclass FOR140 indent level is 1 Photophone (359/149)
   FOR141          Subclass FOR141 indent level is 2 Transducer, per se (359/150)
   FOR142          Subclass FOR142 indent level is 3 With optical fiber or waveguide (359/151)
   FOR143          Subclass FOR143 indent level is 1 Optical transceiver (359/152)
   FOR144          Subclass FOR144 indent level is 2 Including compensation (359/153)
   FOR145          Subclass FOR145 indent level is 1 Transmitter and receiver system (359/154)
   FOR146          Subclass FOR146 indent level is 2 Presence detector (359/155)
   FOR147          Subclass FOR147 indent level is 2 With polarization (359/156)
   FOR148          Subclass FOR148 indent level is 2 One transmitter, plural receivers (359/157)
   FOR149          Subclass FOR149 indent level is 2 With synchronization (359/158)
   FOR150          Subclass FOR150 indent level is 2 With alignment between transmitter and receiver (359/159)
   FOR151          Subclass FOR151 indent level is 2 With pumping (359/160)
   FOR152          Subclass FOR152 indent level is 2 With compensation (359/161)
   FOR153          Subclass FOR153 indent level is 2 With electrical oscillator (359/162)
   FOR154          Subclass FOR154 indent level is 2 With optical circuit board (359/163)
   FOR155          Subclass FOR155 indent level is 2 Plural stations (359/164)
   FOR156          Subclass FOR156 indent level is 3 Address directing connections (359/165)
   FOR157          Subclass FOR157 indent level is 3 Unidirectional or loopback (359/166)
   FOR158          Subclass FOR158 indent level is 3 Central or master station (359/167)
   FOR159          Subclass FOR159 indent level is 2 Passive system (359/168)
   FOR160          Subclass FOR160 indent level is 3 Retroreflection (359/169)
   FOR161          Subclass FOR161 indent level is 2 Retroreflection (359/170)
   FOR162          Subclass FOR162 indent level is 2 Received signal supplies power distribution to diverse devices (359/171)
   FOR163          Subclass FOR163 indent level is 2 Satellite communications (359/172)
   FOR164          Subclass FOR164 indent level is 2 Including optical waveguide (359/173)
   FOR165          Subclass FOR165 indent level is 1 Optical repeater system (359/174)
   FOR166          Subclass FOR166 indent level is 2 Demodulating (359/175)
   FOR167          Subclass FOR167 indent level is 2 Regenerative (359/176)
   FOR168          Subclass FOR168 indent level is 3 Monitoring (359/177)
   FOR169          Subclass FOR169 indent level is 2 Star (359/178)
   FOR170          Subclass FOR170 indent level is 2 Including optical waveguide (359/179)
   FOR171          Subclass FOR171 indent level is 1 Transmitter (359/180)
   FOR172          Subclass FOR172 indent level is 2 With particular modulation (359/181)
   FOR173          Subclass FOR173 indent level is 3 Frequency modulation (359/182)
   FOR174          Subclass FOR174 indent level is 3 Phase modulation (359/183)
   FOR175          Subclass FOR175 indent level is 3 Pulse modulation (359/184)
   FOR176          Subclass FOR176 indent level is 4 Pulse-code (359/185)
   FOR177          Subclass FOR177 indent level is 4 Pulse time (359/186)
   FOR178          Subclass FOR178 indent level is 2 With feedback (359/187)
   FOR179          Subclass FOR179 indent level is 2 Including optical waveguide (359/188)
   FOR180          Subclass FOR180 indent level is 1 Receiver (359/189)
   FOR181          Subclass FOR181 indent level is 2 Homodyne (359/190)
   FOR182          Subclass FOR182 indent level is 2 Heterodyne (359/191)
   FOR183          Subclass FOR183 indent level is 3 With polarization (359/192)
   FOR184          Subclass FOR184 indent level is 2 With optical element (e.g., lens, mirror, etc.) (359/193)
   FOR185          Subclass FOR185 indent level is 2 Automatic gain control (359/194)
   FOR186          Subclass FOR186 indent level is 2 With optical waveguide) (359/195)

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