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| Class 348 | TELEVISION |
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![[List of Pre Grant Publications for class 348 subclass 14.01]](../as.gif) | ![[List of Patents for class 348 subclass 14.01]](../ps.gif) | 14.01 | TWO-WAY VIDEO AND VOICE COMMUNICATION (E.G., VIDEOPHONE) |
| | 14.02 |  Over wireless communication |
| | 14.03 | User interface (e.g., touch screen menu) |
| | 14.04 | Operating with other appliance (e.g., TV, VCR, FAX, etc.) |
| | 14.05 | Remote control |
| | 14.06 | Answering machine |
| | 14.07 | Display arrangement (e.g., multiscreen display) |
| | 14.08 | Conferencing (e.g., loop) |
| | 14.11 | Switching |
| | 14.12 | Transmission control (e.g., resolution or quality) |
| | 14.13 |  Compression or decompression |
| | 14.14 | Still frame (e.g., freeze frame) |
| | 14.15 | Field or frame difference (e.g., moving frame) |
| | 14.16 | User positioning (e.g., parallax) |
| | 21 | PLURAL TRANSMITTER SYSTEM CONSIDERATIONS (E.G., INTERFERENCE REDUCTION) |
| | 22 | SLOW SCANNING TRANSMISSION (E.G., STILL FRAME) |
| | 24 | PLURAL STILL IMAGES OVER CONVENTIONAL CHANNEL |
| | 25 | IMAGE FALSIFICATION TO IMPROVE VIEWER PERCEPTION OF SELECTIVE OBJECT (E.G., MOVING OBJECT OR TARGET) |
| | 31 | BACK SCATTER REDUCTION |
| | 32 | PSEUDO COLOR |
| | 33 | Multispectral to color conversion (e.g., infrared and visible, infrared bands, etc.) |
| | 34 | Including intensity to color conversion (e.g., colorizer, etc.) |
| | 35 | PSEUDO BLACK AND WHITE |
| | 36 | PANORAMIC |
| | 40 | HOLOGRAPHIC |
| | 42 | STEREOSCOPIC |
| | 43 | Signal formatting |
| | 44 | Pseudo |
| | 45 | Endoscope |
| | 46 | Picture signal generator |
| | 47 | Multiple cameras |
| | 49 | Single camera with optical path division |
| | 50 | Single camera from multiple positions |
| | 51 | Stereoscopic display device |
| | 61 | SPECIAL APPLICATIONS |
| | 62 | Aid for the blind |
| | 64 | Combined electronic sensing and photographic film cameras |
| | 65 | With endoscope |
| | 66 | Dental |
| | 67 | Laser |
| | 68 | Illumination |
| | 71 | Color TV |
| | 72 | Plural endoscopes interchangeable |
| | 73 | External camera |
| | 74 | With additional adjunct (e.g., recorder control, etc.) |
| | 75 | Adaptor or connector |
| | 76 | Physical structure of circuit element |
| | 77 | Human body observation |
| | 79 | Microscope |
| | 81 | Underwater |
| | 82 | Hazardous or inaccessible |
| | 86 | Manufacturing |
| | 87 | Electronic circuit chip or board (e.g., positioning) |
| | 88 | Web, sheet or filament |
| | 89 | Agricultural or food production |
| | 90 | Welding |
| | 91 | Sorting, distributing or classifying |
| | 92 | Quality inspection |
| | 94 | Position detection |
| | 96 | Film, disc or card scanning |
| | 97 | Motion picture film scanner |
| | 98 |  Mechanical optical scanning |
| | 100 | Flying spot scanner |
| | 104 | Color TV |
| | 105 | Intermittent film movement |
| | 106 | With modification of scanner sweep |
| | 107 | With record location |
| | 108 | Flying spot scanner |
| | 110 | Slide |
| | 112 | Microfilm |
| | 113 | Navigation |
| | 114 | Remote control |
| | 115 | Head-up display |
| | 116 | Direction finding or location determination |
| | 117 | Aircraft or spacecraft |
| | 118 | Land vehicle |
| | 121 | Simulator |
| | 125 | Flaw detector |
| | 126 | Of electronic circuit chip or board |
| | 127 | Of transparent container or content (e.g., bottle, jar, etc.) |
| | 128 | Of surface (e.g., texture or smoothness, etc.) |
| | 129 | By comparison with reference object |
| | 131 | With specific illumination detail |
| | 133 | With circuit detail |
| | 135 | Object or scene measurement |
| | 136 | Projected scale on object |
| | 137 | Scale on camera target |
| | 138 | Pulse or clock counting |
| | 139 | Multiple cameras on baseline (e.g., range finder, etc.) |
| | 140 | Distance by apparent target size (e.g., stadia, etc.) |
| | 141 | By cursor coordinate location |
| | 142 | With camera and object moved relative to each other |
| | 143 | Observation of or from a specific location (e.g., surveillance) |
| | 144 | Aerial viewing |
| | 148 | Vehicular |
| | 150 | Point of sale or banking |
| | 151 | Camera concealment |
| | 152 | Intrusion detection |
| | 156 | Access control |
| | 157 | Sporting event |
| | 158 | Portable |
| | 159 | Plural cameras |
| | 160 | Reading meter or data printer |
| | 161 | Object comparison (e.g., remote verification of signature, etc.) |
| | 162 | RESPONSIVE TO NONVISIBLE ENERGY |
| | 169 | OBJECT TRACKING |
| | 173 | CATHODE-RAY TUBE BURN-IN PREVENTION |
| | 175 | CAMERA WITH BUILT-IN TEST SIGNAL GENERATOR, TEST PATTERN, OR ADJUSTING ADJUNCT |
| | 177 | DISPLAY OR RECEIVER WITH BUILT-IN TEST SIGNAL GENERATOR, TEST PATTERN, OR ADJUSTING ADJUNCT |
| | 180 | MONITORING, TESTING, OR MEASURING |
| | 181 | Test signal generator |
| | 184 | Monitor |
| | 187 | Testing of camera |
| | 189 | Testing of image reproducer |
| | 192 | Transmission path testing |
| | 194 | Synchronization (e.g., H-sync to subcarrier) |
| | 195 | MECHANICAL OPTICAL SCANNING |
| | 196 | Color TV |
| | 197 | With fiber optics |
| | 198 | By acoustic wave |
| | 199 | Moving aperture |
| | 202 | Moving lens or refractor |
| | 203 | Moving reflector |
| | 206 | SPECIAL SCANNING (E.G., SPIRAL, RANDOM, ZIGZAG) |
| | 207.99 | CAMERA, SYSTEM AND DETAIL |
| | 207.1 | Camera connected to computer |
| | 207.2 | Camera connected to printer |
| | 208.99 | Camera image stabilization |
| | 208.1 | Electrical motion detection |
| | 208.2 | Mechanical motion detection (gyros, accelerometers, etc.) |
| | 208.3 | Differentiating unintentional from purposeful camera movement (pan, tilt) |
| | 208.4 | Motion correction |
| | 208.5 | Including both electrical and mechanical correcting devices |
| | 208.6 | Electrical (memory shifting, electronic zoom, etc.) |
| | 208.7 | Mechanical |
| | 208.12 | Combined with other camera operations (e.g., autofocus or autoexposure details) |
| | 209.99 | With flying spot scanner |
| | 211.99 | Remote control |
| | 211.1 | Communication methods |
| | 211.4 | Control devices |
| | 211.5 | Multiplexed or other embedded control signals |
| | 211.6 | Preprogrammed or stored control instructions |
| | 211.7 | Electromechanical controls (joystick, trackball, mouse, etc.) |
| | 211.8 | Monitor used to control remote camera |
| | 211.9 | Camera characteristics affecting control (zoom angle, distance to camera time delays, weight, etc.) |
| | 211.11 | Plural cameras being controlled |
| | 211.14 | Camera located remotely from image processor (i.e., camera head) |
| | 215.1 | With streak device |
| | 216.1 | Low light level |
| | 218.1 | Unitary image formed by compiling sub-areas of same scene (e.g., array of cameras) |
| | 219.1 | Swing driven |
| | 220.1 | Still and motion modes of operation |
| | 222.1 | Combined image signal generator and general image signal processing |
| | 223.1 | Color balance (e.g., white balance) |
| | 224.1 | Dependent upon operation or characteristic of iris, flash, lens, or filter) |
| | 225.1 | With means for preventing colored object from effecting color balance |
| | 226.1 | Including flicker detection (e.g., fluorescent) |
| | 229.1 | Combined automatic gain control and exposure control (i.e., sensitivity control) |
| | 231.99 | With details of static memory for output image (e.g., for a still camera) |
| | 231.1 | Available memory space detection |
| | 231.2 | Image file management |
| | 231.3 | Storage of additional data |
| | 231.7 | Detachable |
| | 240.99 | Zoom |
| | 234 | Details of luminance signal formation in color camera |
| | 235 | With means for providing high band and low band luminance signals |
| | 236 |  Using distinct luminance image sensor |
| | 237 | For single sensor type camera supplying plural color signals |
| | 238 | Using distinct luminance image sensor |
| | 239 | Camera and video special effects (e.g., subtitling, fading, or merging) |
| | 241 | Including noise or undesired signal reduction |
| | 242 | Color TV |
| | 243 | Dark current |
| | 246 | Defective pixel (e.g., signal replacement) |
| | 248 | Smear |
| | 250 | In charge coupled type sensor |
| | 251 | Shading or black spot correction |
| | 252 | With transition or edge sharpening (e.g., aperture correction) |
| | 254 | Gray scale transformation (e.g., gamma correction) |
| | 257 | With DC level control |
| | 262 | With plural image scanning devices |
| | 263 | Color imagery registration |
| | 264 | Scanning devices offset in the image plane |
| | 265 | Each supplying only one color signal |
| | 266 | With single image scanning device supplying plural color signals |
| | 267 | Separate complete images on face of pickup device |
| | 268 | Color sequential |
| | 272 | Solid-state multicolor image sensor |
| | 273 | With color filter or operation according to color filter |
| | 284 | Cathode-ray tube |
| | 294 | Solid-state image sensor |
| | 295 | Time delay and integration mode (TDI) |
| | 296 | Electronic shuttering |
| | 297 | Accumulation or integration time responsive to light or signal intensity |
| | 300 | With amplifier |
| | 302 | X - Y architecture |
| | 303 | With charge transfer type output register |
| | 304 | With charge transfer type selecting register |
| | 305 | With interlacing |
| | 306 | Charge injection device (CID) |
| | 307 | Photosensitive switching transistors or "static induction" transistors |
| | 308 | Including switching transistor and photocell at each pixel site (e.g., "MOS-type" image sensor) |
| | 309 | Exclusively passive light responsive elements in the matrix |
| | 311 | Charge-coupled architecture |
| | 312 | With timing pulse generator |
| | 313 | With bias charge injection |
| | 314 | With excess charge removal (e.g., overflow drain) |
| | 315 | With staggered or irregular photosites or specified channel configuration |
| | 316 | Charges transferred to opposed registers |
| | 317 | Field or frame transfer type |
| | 318 | With recirculation of charge |
| | 319 | Charges alternately switched from vertical registers into separate storage registers; or having vertical transfer gates |
| | 320 | Interline readout |
| | 322 | Interline readout |
| | 324 | Line transfer type |
| | 325 | Cathode-ray tube |
| | 326 | Automatic beam focusing or alignment |
| | 327 | Automatic beam current control |
| | 328 | Remanent image erasure |
| | 329 | With emissive target or photocathode (e.g., orthicon) |
| | 331 | With photoconductive target (e.g., vidicon) |
| | 332 | Array of photocells (i.e., nonsolid-state array) |
| | 333.01 | With electronic viewfinder or display monitor |
| | 333.02 | With display of additional information |
| | 333.03 | Including display of a frame and line of sight determination |
| | 333.04 | Including warning indication |
| | 333.05 | Display of multiple images (e.g., thumbnail images, etc.) |
| | 333.06 | Movable or rotatable unit |
| | 333.08 | Including optics |
| | 333.11 | Use for previewing images (e.g., variety of image resolutions, etc.) |
| | 333.12 | Modification of displayed image |
| | 333.13 | Power saving mode |
| | 335 | Optics |
| | 336 | Color separating optics |
| | 340 | With optics peculiar to solid-state sensor |
| | 341 | Optical viewfinder |
| | 342 | With frequency selective filter (e.g., IR cut, optical LPF, etc.) |
| | 343 | Optical multiplexing |
| | 344 | Optical path switching |
| | 345 | Focus control |
| | 346 | With display of focusing condition or alarm |
| | 347 | With zoom position detection or interrelated iris control |
| | 348 | Using active ranging |
| | 349 | Using image signal |
| | 350 | With auxiliary sensor or separate area on imager |
| | 351 | With oscillation of lens or sensor to optimize error signal |
| | 352 | With motion detection |
| | 353 | By detecting contrast |
| | 354 | By analyzing high frequency component |
| | 357 | Servo unit structure or mechanism |
| | 359 | Fiber optics |
| | 360 | Lens or filter substitution |
| | 362 | Exposure control |
| | 369 | Changing viewing angle via optics |
| | 370 | With object or scene illumination |
| | 372 | Power supply |
| | 373 | Support or housing |
| | 377 | CATHODE-RAY TUBE DISPLAY EXCESSIVE VOLTAGE CONTROL |
| | 379 | CATHODE-RAY TUBE DISPLAY AUTOMATIC BLACK LEVEL BIAS CONTROL |
| | 380 | CATHODE-RAY TUBE DISPLAY BEAM CURRENT CONTROL |
| | 383 | MODULAR IMAGE DISPLAY SYSTEM |
| | 384.1 | BANDWIDTH REDUCTION SYSTEM |
| | 385.1 | Plural video programs in single channel |
| | 388.1 | Multiple channel (e.g., plural carrier) |
| | 390.1 | Data rate reduction |
| | 391.1 | Specified color signal |
| | 392.1 | Sub-Nyquist sampling |
| | 393.1 | Direct coding of color composite signal |
| | 396.1 | Including luminance signal |
| | 397.1 | Using separate coders for different picture features (e.g., highs, lows) |
| | 398.1 | Subband encoding (e.g., low horizontal/low vertical frequency, low horizontal/high vertical frequency) |
| | 399.1 | Picture feature dependent sampling rate or sample selection |
| | 400.1 | Involving hybrid transform and difference coding |
| | 403.1 | Involving transform coding |
| | 409.1 | Involving difference transmission (e.g., predictive) |
| | 410.1 | Involving both base and differential encoding |
| | 411.1 | Plural predictors |
| | 415.1 | Including temporal prediction (e.g., frame difference) |
| | 418.1 | Involving pattern matching |
| | 419.1 | Coding element controlled by buffer fullness |
| | 420.1 | Involving block coding |
| | 422.1 | Involving pattern matching |
| | 423.1 | Arrangements for multiplexing one video signal, one or more audio signals, and a synchronizing signal |
| | 424.1 | Sub-Nyquist sampling |
| | 425.1 | Associated signal processing |
| | 426.1 | Format type |
| | 427.1 | Including frequency folding (e.g., subsampling) |
| | 428.1 | Spotwobble (e.g., pixels from plural lines form single transmitted line) |
| | 429.1 | Including video-related information |
| | 430.1 | Using two or more frames |
| | 432.1 | Added video information in standard channel format |
| | 433.1 | Including additional modulation of picture carrier (e.g., quadrature) |
| | 434.1 | Including information in sync, blanking, or overscan |
| | 436.1 | Including use of a subcarrier |
| | 437.1 | Individual processing of different parts of image frequency band (e.g., sum and difference, high band/low band) |
| | 438.1 | Individual processing of different parts of image frequency band (e.g., sum and difference, high band/low band) |
| | 439.1 | Frame field or line dropping followed by time expansion and time compression |
| | 440.1 | Scan rate variation |
| | 441 | FORMAT CONVERSION |
| | 442 | Involving polar to Cartesian or vice versa |
| | 443 | Involving both line number and field rate conversion (e.g., PAL to NTSC) |
| | 445 | Conversion between standards with different aspect ratios |
| | 446 | Progressive to interlace |
| | 447 | Field rate type flicker compensating |
| | 448 | Line doublers type (e.g., interlace to progressive IDTV type) |
| | 449 | Including nonstandard signal detection |
| | 450 | Specified chrominance processing (e.g., Y/C separation) |
| | 452 | Motion adaptive |
| | 453 | Specified chrominance processing |
| | 454 | PAL to NTSC or vice versa |
| | 455 | In which simultaneous signals are converted into sequential signals or vice versa |
| | 457 | Frequency change of subcarrier |
| | 458 | Changing number of lines for standard conversion |
| | 459 | Changing number of fields for standard conversion |
| | 460 | DIVERSE DEVICE CONTROLLED BY INFORMATION EMBEDDED IN VIDEO SIGNAL |
| | 461 | NONPICTORIAL DATA PACKET IN TELEVISION FORMAT |
| | 462 | Audio |
| | 463 | Full field |
| | 464 | Sync |
| | 465 | Data separation or detection |
| | 466 | Error correction or prevention |
| | 467 | Data format |
| | 468 | Including teletext decoder or display |
| | 469 | FORMAT |
| | 470 | Adapted to reduce noise or for frequency modulation (e.g., variable gain) |
| | 471 | Including pulse modulation of video signal (e.g., pulse width, PAM) |
| | 473 | Including additional information |
| | 474 | For controlling video processing (e.g., digitally assisted video) |
| | 475 | Additional modulation of picture carrier (e.g., quadrature) |
| | 476 | During sync, blanking, or overscan |
| | 477 | During both vertical and horizontal blanking |
| | 478 | During vertical blanking |
| | 479 | During horizontal blanking |
| | 482 | Sound signal |
| | 484 | Sound signal |
| | 486 | Including the use of a subcarrier |
| | 487 | Broadband (e.g., occupying two adjacent channels or parts thereof) |
| | 488 | Specified color signal format |
| | 489 | Time division multiplexing of luminance and chrominance (e.g., MAC) |
| | 490 | Field or frame sequential systems |
| | 491 | Simultaneous and sequential (e.g., SECAM) |
| | 492 | Simultaneous signals |
| | 495 | Of sync signal |
| | 497 | FLUTTER OR JITTER CORRECTION (E.G., DYNAMIC REPRODUCTION) |
| | 500 | SYNCHRONIZATION |
| | 501 | Reprocessing |
| | 503 | For sequential color components |
| | 505 | Phase locking regenerated subcarrier to color burst |
| | 510 | Locking of computer to video timebase |
| | 511 | Control of picture position |
| | 512 | Locking of video or audio to reference timebase |
| | 513 | Frame or field synchronizers |
| | 515 | Audio to video |
| | 516 | By controlling video or sync generator |
| | 518 | Including compensation for transmission delays |
| | 520 | Color |
| | 521 | Sync generation |
| | 522 | Means on video signal generator |
| | 523 | With addressable memory |
| | 524 | With counter or frequency divider |
| | 525 | Sync separation |
| | 526 | Field or frame identification |
| | 528 | Including automatic gain control (AGC) |
| | 529 | To produce distinct vertical output |
| | 531 | To produce distinct horizontal output |
| | 532 | By amplitude |
| | 533 | Noise reduction |
| | 536 | Automatic phase or frequency control |
| | 537 | Of sampling or clock |
| | 540 | Horizontal sync component |
| | 547 | Vertical sync component |
| | 549 | Using color subcarrier |
| | 550 | To achieve interlaced scanning |
| | 551 | Of mechanical scan |
| | 552 | COMBINED WITH DIVERSE ART DEVICE (E.G., COMPUTER, TELEPHONE) |
| | 553 | BASIC RECEIVER WITH ADDITIONAL FUNCTION |
| | 554 | Multimode (e.g., composite, Y, C; baseband RF) |
| | 559 | Instant replay or freeze frame |
| | 561 | For magnification of part of image |
| | 563 | For display of additional information |
| | 571 | IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION |
| | 572 | A/D converters |
| | 575 | Video reprocessing |
| | 576 | Selective image modification (e.g., touch up) |
| | 578 | Special effects |
| | 579 | Strobe (e.g., ball tracker) |
| | 580 | Geometric transformation |
| | 584 | Combining plural sources |
| | 585 | Including priority key |
| | 586 | Foreground/background insertion |
| | 588 | Multiple distinct images (e.g., splitscreen) |
| | 589 | Including insertion of characters or graphics (e.g., titles) |
| | 590 | Specified details of key signal generation or processing |
| | 591 | Self keyers (e.g., key generated from video being mixed |
| | 593 | Artificial key generation |
| | 597 | For generation of soft edge (e.g., blending) |
| | 598 | Specified details of signal combining |
| | 601 | Marker or pointer generator |
| | 602 | Display controlled by ambient light |
| | 604 | Including nonstandard signal detection controlling processing |
| | 605 | Including vertical interval reference (e.g., VIR) |
| | 606 | Combined noise reduction and transition sharpening |
| | 607 | Noise or undesired signal reduction |
| | 608 | Processing at encoder or transmitter (e.g., pre-correction) |
| | 609 | Reduction of chrominance luminance cross-talk (e.g., precomb) |
| | 611 | To suppress echo |
| | 612 | Color signals |
| | 613 | Complementary system (e.g., preemphasis - deemphasis) |
| | 614 | Ghost elimination (e.g., multipath) |
| | 615 | Blackspot or shading correction (e.g., corrects for fixed pattern defects) |
| | 616 | Dropout compensator (e.g., replacement type) |
| | 618 | For removal of low amplitude random noise (e.g., variable bandwidth) |
| | 624 | For color television |
| | 625 | Transition or edge sharpeners |
| | 626 | Scanning velocity modulation |
| | 627 | Including processing to prevent the addition of noise (e.g., coring enhancement signal, noise responsive peaking control) |
| | 628 | Vertical transition |
| | 630 | Color television processing |
| | 632 | Sound muting |
| | 634 | Picture blanking |
| | 638 | Chrominance signal demodulator |
| | 642 | Color encoder or chrominance signal modulator |
| | 643 | Color killer |
| | 645 | Chrominance signal amplitude control (e.g., saturation) |
| | 649 | Hue control |
| | 650 | Scene by scene color correction |
| | 651 | Digital |
| | 652 | Fleshtone corrector (e.g., fixed) |
| | 654 | By phase change of chrominance signal or subcarrier |
| | 655 | Color balance or temperature (e.g., white balance) |
| | 659 | Matrixing or mixing |
| | 662 | Chrominance phase adjuster (e.g., inverter) |
| | 663 | Chrominance-luminance signal separation |
| | 671 | Gray scale transformation |
| | 672 | Using histogram |
| | 673 | Combined contrast control and brightness or DC level control |
| | 674 | Nonlinear amplitude modification (e.g., gamma) |
| | 675 | Color television |
| | 676 | By adding outputs from parallel channels |
| | 677 | With specified DC level control |
| | 678 | Automatic range control (e.g., AGC, automatic contrast control) |
| | 686 | Manual contrast control (e.g., linear) |
| | 687 | Brightness control |
| | 690 | White limiter |
| | 691 | DC insertion |
| | 692 | Color television |
| | 693 | At transmitter |
| | 694 | For plural signals or signal components |
| | 695 | Level inserted during keying signals (e.g., keyed clamp) |
| | 696 | Insertion level derived by key signals |
| | 698 | Diode |
| | 699 | Motion vector generation |
| | 700 | Motion dependent key signal generation or scene change detection |
| | 701 | Specified processing of frame or field difference signal (e.g., noise reduction, key signal spreading) |
| | 702 | Composite color signal |
| | 703 | Hue or saturation detector |
| | 704 | Sweep expansion or reduction |
| | 705 | Switching |
| | 707 | Amplifiers |
| | 708 | Color television signal processing |
| | 709 | Signal modification for one gun color tube (e.g., dot sequential) |
| | 710 | Differential phase or amplitude responsive |
| | 711 | Frequency response modification |
| | 712 | Luminance channel circuitry |
| | 713 | Chrominance channel circuitry |
| | 714 | With details of static storage device |
| | 715 | For storing a sequence of frames or fields |
| | 716 | Specified data formatting (e.g., memory mapping) |
| | 718 | Accessing circuitry |
| | 720 | Digital |
| | 722 | STUDIO EQUIPMENT |
| | 723 | TELEVISION TRANSMITTER CIRCUITRY |
| | 725 | RECEIVER CIRCUITRY |
| | 726 | Demodulator |
| | 728 | Color television |
| | 729 | Television receiver adapted to receive radio broadcast or in combination with radio receiver |
| | 730 | Power supply |
| | 731 | Tuning |
| | 734 | Remote control |
| | 735 | Automatic frequency control |
| | 736 | Sound traps |
| | 737 | Intercarrier circuits |
| | 738 | Sound circuit |
| | 739 | VIDEO DISPLAY |
| | 740 | Array of shutters |
| | 741 | Red-white phenomena |
| | 742 | Color sequential |
| | 744 | Projection device |
| | 745 | With alignment, registration or focus |
| | 748 | With cooling device |
| | 750 | Plural parallel light modulators |
| | 751 | Liquid crystal |
| | 752 | Using birefringent or polarizing medium (e.g., Kerr cell, Pockels cell, etc.) |
| | 754 | Acousto-optic (e.g., Bragg cell, etc.) |
| | 755 | Deformable medium |
| | 756 | With optical element |
| | 758 | Plural serial light modulators |
| | 759 | Single light modulator |
| | 760 | Color TV |
| | 761 | Liquid crystal |
| | 762 | Using birefringent or polarizing medium (e.g., Kerr cell, Pockels cell, etc.) |
| | 764 | Deformable medium |
| | 766 | Liquid crystal |
| | 767 | Using birefringent or polarizing medium (e.g., Kerr cell, Pockels cell, etc.) |
| | 769 | Acousto-optic |
| | 770 | Deformable medium |
| | 776 | Cathode-ray tube image source |
| | 777 | With intensifier |
| | 778 | Plural CRTs |
| | 781 | With optical element |
| | 787 | Cabinet or chassis |
| | 789 | Cabinet or chassis |
| | 790 | Liquid crystal |
| | 795 | Direct viewed light valve |
| | 796 | Vacuum panel |
| | 797 | Gas discharge |
| | 798 | Array of lamps |
| | 800 | Electroluminescent (e.g., scanned matrix, etc.) |
| | 804 | With optical fiber device |
| | 805 | Cathode-ray tube |
| | 806 | With distortion, alignment or focus |
| | 808 | Color TV |
| | 809 | Separate electron beams in single tube |
| | 810 | One electron beam supplying more than one color |
| | 816 | With color specific optical device |
| | 818 | Protective device |
| | 825 | Support |
| | 826 | CRT having only support at front portion |
| | 827 | CRT position adjustable by user |
| | 828 | Deflection element support |
| | 832 | With optical element |
| | 836 | Cabinet or chassis |
| | 844 | MISCELLANEOUS |
| E-SUBCLASSES | ||
| The following subclasses beginning with the letter E are E-subclasses. Each E-subclass corresponds in scope to a classification in a foreign classification system, for example, the European Classification system (ECLA). The foreign classification equivalent to an E-subclass is identified in the subclass definition. In addition to US documents classified in E-subclasses by US examiners, documents are regularly classified in E-subclasses according to the classification practices of any foreign Offices identified in parentheses at the end of the title. For example, "(EPO)" at the end of a title indicates both European and US patent documents, as classified by the EPO, are regularly added to the subclass. E-subclasses may contain subject matter outside the scope of this class.Consult their definitions, or the documents themselves to clarify or interpret titles. |
| | E17.001 | DIAGNOSIS, TESTING OR MEASURING FOR TELEVISION SYSTEMS OR THEIR DETAILS (EPO) |
| | E17.002 | For television cameras (EPO) |
| | E17.003 | For digital television systems (EPO) |
| | E17.004 | For color television signals (EPO) |
| | E17.005 | For receivers (EPO) |
| | E15.001 | STEREOSCOPIC COLOR TELEVISION SYSTEMS; DETAILS THEREOF (EPO) |
| | E13.001 | STEREOSCOPIC TELEVISION SYSTEMS; DETAILS THEREOF (EPO) |
| | E13.002 | Systems where the three-dimensional effect is obtained by means of at least two 2D image signals from different viewpoint locations representing the interocular distance (EPO) |
| | E13.003 | Stereoscopic image signal generation (EPO) |
| | E13.004 | Using a stereoscopic image camera (EPO) |
| | E13.005 | Having a single 2D image pickup sensor (EPO) |
| | E13.006 |  Using spectral multiplexing, i.e., simultaneously capturing several geometrical viewpoints separated by different spectral characteristics (EPO) |
| | E13.007 | Using spatial multiplexing, i.e., simultaneously capturing several geometrical viewpoints on different parts of the image pickup sensor (EPO) |
| | E13.008 | Using the relative movement between camera and object (EPO) |
| | E13.009 | Using temporal multiplexing, i.e., alternatively capturing several geometrical viewpoints separated in time (EPO) |
| | E13.01 | Having a parallax barrier (EPO) |
| | E13.011 | Having a fly-eye lenticular screen (EPO) |
| | E13.012 | Having a lenticular screen (EPO) |
| | E13.013 | Having a varifocal lens or mirror (EPO) |
| | E13.014 | Having two 2D image pickup sensors representing the interocular distance (EPO) |
| | E13.015 | Having more than two 2D image pickup sensors (EPO) |
| | E13.016 | Calibration aspects (EPO) |
| | E13.018 | In combination with an electromagnetic radiation source for Illuminating the subject (EPO) |
| | E13.019 | Color aspects (EPO) |
| | E13.02 | With monoscopic to stereoscopic image conversion (EPO) |
| | E13.021 | For generating stereoscopic image signals corresponding to more than two geometrical viewpoints (EPO) |
| | E13.022 | From a 3D object model, e.g., computer generated stereoscopic image signals (EPO) |
| | E13.023 | The virtual viewpoint location being selected by the observer, e.g., observer tracking (EPO) |
| | E13.025 | Synchronization or controlling aspects (EPO) |
| | E13.026 | Stereoscopic image displaying (EPO) |
| | E13.027 | Using an autostereoscopic display, i.e., viewing by the user without the aid of special glasses (EPO) |
| | E13.028 | Using a fly-eye lenticular screen (EPO) |
| | E13.029 | Using a lenticular screen (EPO) |
| | E13.03 | Using a parallax barrier, e.g., spatial light modulator (EPO) |
| | E13.031 | Using an array of controllable light sources or a moving aperture or light source (EPO) |
| | E13.032 | Using a varifocal lens or mirror (EPO) |
| | E13.033 | Color aspects (EPO) |
| | E13.034 | Calibration aspects (EPO) |
| | E13.035 | Using a digital micro mirror device (DMD) (EPO) |
| | E13.036 | For viewing by the user with the aid of special glasses or head mounted displays (HMD), i.e., stereoscopic displaying (EPO) |
| | E13.038 | With polarization multiplexing, i.e., simultaneously displaying left and right images separated using glasses with different polarizing characteristics (EPO) |
| | E13.04 | With temporal multiplexing, i.e., alternatively displaying left and right images separated in time and using glasses to alternatively block the right and left eye (EPO) |
| | E13.041 | With head mounted left-right displays (EPO) |
| | E13.042 | Using a half transparent mirror or prism (EPO) |
| | E13.043 | For displaying simultaneously more than two geometrical viewpoints, i.e., look-around effect without observer tracking (EPO) |
| | E13.045 | Using observer tracking (EPO) |
| | E13.046 | For several observers (EPO) |
| | E13.047 | For tracking with gaze detection, i.e., detecting the lines of sight of the observers eyes (EPO) |
| | E13.048 | For tracking with variable interoccular distance or rotational head movements around the vertical axes (EPO) |
| | E13.049 | For tracking forward-backward translational head movements, i.e., longitudinal movements (EPO) |
| | E13.05 | For tracking left-right translational head movements, i.e., lateral movements (EPO) |
| | E13.051 | For tracking rotational head movements in a plane parallel to the screen (EPO) |
| | E13.052 | For tracking vertical translational head movements (EPO) |
| | E13.053 | Alternating rapidly the location of the left-right image components on the display screen (EPO) |
| | E13.054 | Using a volumetric display, i.e., systems where the image is built up from picture elements distributed over a volume (EPO) |
| | E13.055 | The picture elements emitting light where a pair of light beams intersect in a transparent material (EPO) |
| | E13.056 | The volume being generated by a moving, e.g., vibrating or rotating, surface (EPO) |
| | E13.057 | With depth sampling, i.e., the volume being constructed from a stack or sequence of 2D image planes (EPO) |
| | E13.058 | Using an image projection screen (EPO) |
| | E13.059 | Synchronization or controlling aspects (EPO) |
| | E13.06 | Stereoscopic image signal coding, multiplexing, processing, recording or transmission (EPO) |
| | E13.061 | Color aspects (EPO) |
| | E13.062 | Coding or decoding stereoscopic image signals (EPO) |
| | E13.063 | Mixing stereoscopic image signals (EPO) |
| | E13.064 | Processing stereoscopic image signals (EPO) |
| | E13.065 | Transformation of stereoscopic image signals corresponding to virtual viewpoints, e.g., spatial image interpolation (EPO) |
| | E13.066 | The virtual viewpoint location being selected by the observer, e.g., observer tracking with look around effect (EPO) |
| | E13.067 | Improving the 3D impression of a displayed stereoscopic image, e.g., with filtering or addition of monoscopic depth cues (EPO) |
| | E13.068 | Format conversion of stereoscopic images, e.g., frame-rate, size, (EPO) |
| | E13.069 | Equalizing the characteristics of different image components in stereoscopic images, e.g., average brightnesss or color balance (EPO) |
| | E13.07 | Switching stereoscopic image signals (EPO) |
| | E13.071 | Transmission of stereoscopic image signals (EPO) |
| | E13.072 | Multiplexing or demultiplexing different image signal components in stereoscopic image signals (EPO) |
| | E13.073 | Synchronization or controlling aspects (EPO) |
| | E13.074 | Picture signal generators (EPO) |
| | E13.075 | Picture reproducers (EPO) |
| | E11.001 | COLOR TELEVISION SYSTEMS (EPO) |
| | E11.002 | High definition systems (EPO) |
| | E11.003 | Involving two-channel transmission (EPO) |
| | E11.004 | Involving bandwidth reduction, e.g., subsampling (EPO) |
| | E11.005 | With transmission of the extra information by means of quadrature modulation (EPO) |
| | E11.006 | With bandwidth reduction (EPO) |
| | E11.007 | Transmission systems characterized by the manner in which the individual color picture signal components are combined (EPO) |
| | E11.008 | Using sequential signals only (EPO) |
| | E11.01 | Using simultaneous signals only (EPO) |
| | E11.011 | In which one signal, modulated in phase and amplitude, conveys color information and a second signal conveys brightness information, e.g., NTSC-system (EPO) |
| | E11.012 | The chrominance signal alternating in phase, e.g., PAL-system (EPO) |
| | E11.013 | A resolution-increasing signal being multiplexed to the PAL-system signal, e.g., PAL-PLUS-system (EPO) |
| | E11.014 | Encoding means therefor (EPO) |
| | E11.015 | Decoding means therefor (EPO) |
| | E11.016 | Encoding means therefor (EPO) |
| | E11.017 | Decoding means therefor (EPO) |
| | E11.018 | Using simultaneous and sequential signals, e.g., SECAM-system (EPO) |
| | E11.021 | Conversion of the manner in which the individual color picture signal components are combined, e.g., conversion of color television standards (EPO) |
| | E9.001 | DETAILS OF COLOR TELEVISION SYSTEMS (EPO) |
| | E9.002 | Picture signal generators (EPO) |
| | E9.003 | With one pick-up device only (EPO) |
| | E9.004 | Whereby the color signals are characterized by their phase (EPO) |
| | E9.005 | Whereby the color signals are characterized by their frequency (EPO) |
| | E9.006 | With more than one pick-up device (EPO) |
| | E9.007 | Systems for avoiding or correcting misregistration of video signals (EPO) |
| | E9.008 | Optical arrangements associated therewith, e.g., for beam-splitting, for color correction (EPO) |
| | E9.009 | Scanning of color motion picture films, e.g., for telecine (EPO) |
| | E9.01 | Using solid-state devices (EPO) |
| | E9.011 | Using optical-mechanical scanning means only (EPO) |
| | E9.012 | Picture reproducers (EPO) |
| | E9.013 | Using optical-mechanical scanning means only (EPO) |
| | E9.014 | Using cathode ray tubes (EPO) |
| | E9.015 | With variable depth of penetration of electron beam into the luminescent layer, e.g., penetrons (EPO) |
| | E9.016 | Using separate electron beams for the primary color signals (EPO) |
| | E9.018 | Using the same beam for more than one primary color information (EPO) |
| | E9.019 | Using means, integral with, or external to, the tube, for producing signal indicating instantaneous beam position (EPO) |
| | E9.02 | Using electron-optical color selection means, e.g., line grid, deflection means in or near the gun or near the phosphor screen (EPO) |
| | E9.021 | Arrangements for convergence or focusing (EPO) |
| | E9.023 | Using demagnetization or compensation of external magnetic fields (EPO) |
| | E9.024 | Using solid-state color display devices (EPO) |
| | E9.025 | Projection devices for color picture display (EPO) |
| | E9.028 | Conversion of monochrome picture signals to color picture signals for color picture display (EPO) |
| | E9.029 | Color synchronization (EPO) |
| | E9.03 | Generation or recovery of color sub-carriers (EPO) |
| | E9.031 | Generation of color burst signals; Insertion of color burst signals in color picture signals or separation of color burst signals from color picture signals |
| | E9.032 | Synchronization of the PAL-switch (EPO) |
| | E9.033 | For sequential signals (EPO) |
| | E9.034 | For mutually locking different synchronization sources (EPO) |
| | E9.036 | For separating the brightness signal or the chrominance signal from the color television signal, e.g., using comb filter (EPO) |
| | E9.037 | Circuits for processing color signals (EPO) |
| | E9.038 | Multi-standard receivers (EPO) |
| | E9.039 | Multi-purpose receivers, e.g., for auxiliary information (EPO) |
| | E9.04 | Hue control means, e.g., flesh tone control (EPO) |
| | E9.041 | Beam current control means (EPO) |
| | E9.042 | For image enhancement, e.g., vertical detail restoration, cross-color elimination, contour correction, chrominance trapping filters (EPO) |
| | E9.043 | I.F amplifiers (EPO) |
| | E9.044 | Video amplifiers (EPO) |
| | E9.045 | For synchronous modulators (EPO) |
| | E9.046 | For synchronous demodulators (EPO) |
| | E9.047 | For matrixing (EPO) |
| | E9.048 | For color killing (EPO) |
| | E9.05 | For reinsertion of dc and slowly varying components of color signal (EPO) |
| | E9.051 | Color balance circuits, e.g., white balance circuits, color temperature control (EPO) |
| | E9.053 | For controlling the amplitude of color signals, e.g., automatic chroma control circuits (EPO) |
| | E9.055 | For obtaining special effects (EPO) |
| | E7.001 | TELEVISION SYSTEMS (EPO) |
| | E7.002 | Systems with supplementary picture signal insertion during a portion of the active part of a television signal, e.g., during top and bottom lines in a HDTV letter-box system (EPO) |
| | E7.003 | Conversion of standards (EPO) |
| | E7.004 | High-definition television systems (EPO) |
| | E7.005 | Using spatial or temporal subsampling (EPO) |
| | E7.008 | Involving the resampling of the incoming video signal (EPO) |
| | E7.009 | Using a storage device with different write and read speed (EPO) |
| | E7.012 | Involving interpolation processes (EPO) |
| | E7.013 | Involving the use of motion vectors (EPO) |
| | E7.014 | Dependent on presence/absence of motion, e.g., of motion zones (EPO) |
| | E7.015 | One of the standards corresponding to a cinematograph film standard (EPO) |
| | E7.016 | One of the standards being a high definition standard (EPO) |
| | E7.017 | Systems for the transmission of digital nonpicture data, e.g., of text during the active part of a television frame (EPO) |
| | E7.018 | Display systems therefor (EPO) |
| | E7.019 | Subscription systems therefor (EPO) |
| | E7.02 | Circuits for the digital non-picture data signal, e.g., for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal (EPO) |
