PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.


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363-131 121-55A 14-.5
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Class Number: 358
 Class Title: PICTORIAL COMMUNICATION; TELEVISION

Subclass  Subclass
Number    Title

  1       NATURAL COLOR TELEVISION
  2       .Holography
  3       .Stereoscopic
  310     .Recording or reproducing
  311     ..Editing
  312     ..Fast, slow, or stop reproducing
  313     ..Field, frame, or line skipping
  314     ..Dropout detection or correction
  315     ..Signal amplitude level control
  316     ...Color component
  317     ....Color killer
  318     ....Using reference signal
  319     ..Synchronization signal modification
  320     ..Time (e.g., phase or frequency) control
  321     ...Of relative transducer/record medium speed
  322     ....Disc
  323     ...Using recorded references (e.g., pilot signal)
  324     ...Phase matching or color components to an external reference
  325     ....Using variable delay
  326     ....Color burst
  327     ..Recorder or reproducer fault condition compensation
  328     ...Crosstalk elimination
  329     ...Comb filtering
  330     ..Frequency modulation recording techniques
  331     ..Using diffraction technique or stripe filter
  332     ..Using photographic record
  333     ...With color signal in nonpictorial form
  334     ..Separately recorded primary color signals
  10      .Monitoring, testing, or measuring
  11      .Signal format conversion
  12      .Transmission signal formatting
  13      ..Pulse code modulation
  14      ..Simultaneous and sequential signals
  15      ..Simultaneous signals
  16      ...Luminance plus dual-phase modulated color carrier
  17      .Color synchronization
  18      ..Of line-sequential switch
  19      ..Using burst
  20      ...Specific burst separation circuit
  21 R    .Specific signal processing circuitry
  22      ..Special effects
  23      ..Modulator or demodulator
  24      ...For PAL signal
  25      ...Reference signal control or source
  26      ..Color killer
  27      ..Color signal amplitude control
  28      ..Hue control
  29      ..Color balance or temperature
  30      ..Matrixing or mixing
  31      ..Chrominance-luminance signal separation
  32      ..Gamma correction
  33      ..Blankingg
  34      ..D.C. insertion
  35      ..Differential phase or amplitude distortion correction
  36      ..Noise elimination
  37      ..Signal enhancing
  38      ..Frequency response modification
  39      ..Luminance channel circuitry
  40      ..Chrominance channel circuitry
  21 V    ..Vertical interval test/reference signal use
  41      .Picture signal generators
  42      ..With moving color filters
  43      ..With one pick-up device supplying more than one color signal
  44      ...Single photosensitive device
  45      ....With indexing
  46      .....Including conductive grid at target
  47      ....Frequency separable signals
  48      ....Color signals at separate output terminals
  49      ....Separate complete images on face of photosensitive device
  50      ..With more than one pick-up device; each supplying only one
             color signal
  51      ...Misregistration correction
  52      ...Having four photosensitive devices
  53      ..Using mechanical-optical scanning means only
  54      ..Motion picture film scanning
  55      ..Optics
  56      .Picture display
  57      ..Red-white phenomena
  58      ..With moving color filters
  59      ..Electroluminescent or solid state
  60      ..Projection device
  61      ...Using birefringent or polarizing medium
  62      ...Using deformable medium
  63      ...Using mechanical-optical scanning means only
  64      ..Using cathode-ray tube
  65      ...Using separate electron beams in a single tube
  66      ...Using the same electron beam for more than one color
  67      ....With beam position indicating means
  68      .....Horizontal stripes
  69      .....Photoelectric sensor
  70      .....Secondary emission sensor
  71      ....With electron-optical color selection
  72      ....With beam energy determining color
  73      .....With variable depth of penetration of electron beam into
                the luminescent layer
  74      ....Beam intensity or ultor supply control
  500     NATURAL COLOR FACSIMILE
  501     .Image reproduction
  502     ..Ink-Jet
  503     ..Thermal
  504     .Measuring, testing, and calibrating
  505     .Scanning
  506     ..Transparency image scanning
  507     ..Cathode-ray tube
  508     ..Transceiver
  509     ..Illumination
  510     ...Coherent light
  511     ..With prism
  512     ..With color filters
  513     ..Solid statee
  514     ...With plural sensors
  515     .Color separation
  516     ..White balance correction
  517     ..Color masking
  518     .Color correction
  519     ..Gamma correction
  520     ..Hue, saturation and luminance
  521     ..Gradation
  522     ..With histogram
  523     ..With memory for storage of conversion data
  524     .Intermediate storage
  525     .Interpolation
  526     .With mark-forming function
  527     .Color photography previewer
  528     .Size variation
  529     .Black signal synthesis
  530     .Specific image-processing circuitry
  531     ..Electronic retouch
  532     ..Sharpness emphasizing
  533     ..Moire reduction
  534     ..Halftone processing
  535     ...Matrix
  536     ...Halftone screening
  537     ..Image editing
  538     ..Image portion selection
  539     ..Image coding (encoder/decoder)
  540     ..Composite image
  81      PSEUDO COLOR
  82      .With conventional color television receiver
  83      TELEVISION
  84      .Audience survey and use accounting
  85      .Telephone-television system and apparatus
  86      .Wired broadcasting and distribution
  87      .Panoramic
  88      .Stereoscopic
  89      ..Pseudo
  90      ..Holographic
  91      ..Separate views on same channel
  92      ...Alternately transmitted
  93      .Including structure dictated by use
  94      ..Aid for the blind
  95      ..Back scatter reduction
  96      ..Contour generator
  97      ..Combined television and motion picture
  98      ..Endoscope
  99      ..Underwater
  100     ..Hazardous or inaccessible
  101     ..Manufacturing
  102     ..Film, disc, or card retrieval
  103     ..Navigation
  104     ..Simulator
  105     ..Motion detector
  106     ..Flaw detector
  107     ..Measurement
  108     ..Surveillance
  109     ...Aerial viewing
  110     .Responsive to nonvisible energy
  111     ..X-rayy
  112     ..Sonic or ultrasonic
  113     ..Infrared
  349     .Use or access blocking (e.g., locking switch)
  125     .Camera tracking
  126     ..Using tracking gate
  335     .Recording or reproducing television
  336     ..Noise pulse or dropout detection or correction
  337     ..Time (e.g., phase or frequency) control
  338     ...Of relative transducer/record medium speed
  339     ...Digital techniques
  340     ..Noise (e.g., crosstalk) reduction
  341     ..Separately recorded audio and video
  342     ..With disc
  343     ..Audio and video multiplexed onto same track
  344     ..With thermoplastic record
  345     ..With photographic record
  346     ...Recording at different frame rate
  347     ...Using laser or electron beam
  348     ...With record moving continuously
  133     .Bandwidth reduction of signal
  134     ..Fast in-slow out
  135     ..Difference transmission
  136     ...Between fields or frames
  137     ..Scan rate variation
  138     ..Sampling
  139     .Monitoring, testing, or measuring
  140     .Standards or scan conversion
  141     .Transmission signal formatting
  142     ..For transmission of more than one information signal
  143     ...Including sound
  144     ....Stereo sound
  145     ....During sync or blanking intervals
  146     ...Sequentially over the same band
  147     ....In blanking or sync periods
  148     .Synchronization
  149     ..Remote-local lock in
  150     ..Generation of sync signals
  151     ...Means on video signal generator
  152     ..To achieve interlace scanning
  153     ..Sync separation
  154     ...Vertical from horizontal
  155     ...Noise reduction
  156     ....Amplitude limiting
  157     ....Noise inversion
  158     ..Automatic frequency control
  159     ...Sync signal compared with sawtooth derived from oscillator
  160     .Specific processing circuitry
  161     ..Control dependent on ambient light
  162     ..Aperture correction
  163     ..Shading or black spot correction
  164     ..Gamma correction
  165     ..Picture blanking or sound muting
  166     ..Signal enhancing
  167     ..Noise elimination
  168     ..Brightness control (auto and manual)
  169     ..Contrast control (auto and manual)
  170     ..White limiter
  171     ..D.C. insertionn
  172     ...Keyed clamp
  173     ...Diode
  174     ..Automatic gain control
  175     ...Carrier envelope
  176     ...Sync or blanking responsive
  177     ....Noise reduction or elimination
  178     ....Keyed
  179     ...Delayed AGC
  180     ..Sweep expansion or reduction
  181     ..Switching
  182     ..Dissolves or fades
  183     ..Wipes or inserts
  184     ..Amplifiers
  185     .Studio equipment
  186     .Transmitter circuitry
  187     ..To suppress echo
  188     .Receiver circuitry
  189     ..TV receiver adapted to receive radio broadcast or in
             combination with radio receiver
  190     ..Power supply
  191.1   ..Tuning
  192.1   ...With indicator
  193.1   ...Search tuning
  194.1   ..Remote control
  195.1   ..Automatic frequency control
  196     ..Sound traps
  197     ..Intercarrier circuits
  198     ..Sound circuit
  199     .Mechanical-optical scanning
  200     ..With fiber optics
  201     ..By acoustic wave
  202     ..Moving aperture
  203     ...Drum or belt
  204     ...Multiple scanning elements
  205     ..Moving lens or refractor
  206     ..Moving reflector
  207     ...Helical element
  208     ...Vibrating or oscillating
  209     .Picture signal generator
  210     ..Remote control of generator
  211     ..Low light level
  213.11  ..Scanned solid state device
  213.12  ...Junction field effect sensor (e.g., static induction)
  213.13  ...Having specific optical feature (e.g., shutter-readout
              coordination, viewfinder)
  213.15  ...Noise reduction or defect correction
  213.16  ....Dark current or temperature compensation
  213.17  ....With defective pixel compensation
  213.18  ....Transient or fixed pattern signal reduction (e.g.,
               flicker, spike, grain)
  213.19  ....Blooming reduction or light level control (e.g.,
               exposure control)
  213.22  ...Having particular interlacing feature
  213.23  ...Including charge transfer device
  213.24  ....Smear reduction
  213.25  ....Frame transfer
  213.26  ....Readout feature
  213.27  ...Readout enhancementt
  213.28  ....Increased resolution
  213.29  ....Having shift register-sensor relationship
  213.31  ....Having specific biasing or pulsing feature
  212     ..Array of photocells
  214     ..Motion picture film scanner
  215     ...Intermittent film movement
  216     ...With modification of scanner sweep
  217     ..Cathode-ray tube
  218     ...Automatic beam focusing
  219     ...Automatic beam current or sensitivity control
  220     ...Burn-in prevention
  221     ...Dark current compensation
  222     ...Image stabilization
  223     ...Remanent image erasure
  224     ...Viewfinder
  225     ..Optics
  226     ...Optical multiplexing
  227     ...Focus control
  228     ...Automatic iris control
  229     ..Support or housing
  230     .Picture reproducer
  231     ..Projection device
  232     ...Kerr cells, polarizing
  233     ...Deformable medium
  234     ....Specific composition of medium
  235     ...Acoustic
  236     ...Alterable transmissivity
  237     ...Cathode-ray tube as light source
  238     ....With concave mirror
  239     .....With correcting plate
  240     ..Array of lamps
  241     ..Scanned solid state device
  242     ..Cathode-ray tube
  243     ...Excess beam current or ultor voltage control
  244     ...With means to photograph displayed image
  244.1   ....Recording at different frame rate
  244.2   ....With record moving continuously
  245     ...Protective device
  246     ....Tensioned metal band
  247     ....Protective glass or panel
  248     ...Support
  249     ....Adjustable
  250     ...Optics
  251     ....For line elimination
  252     ....Glare reduction
  253     ....Filters
  254     ..Cabinet or chassis
  255     ...With light shield
  400     FACSIMILE
  401     .Image reproduction system
  402     .Electronic mailbox
  403     .Document filing and retrieval system
  404     .Facsimile memory monitoring
  405     .Image transmission accuracy verification
  406     .Facsimile measuring, testing, or calibrating
  407     .Facsimile relay system
  408     .Plural scanner station
  409     .Synchronizationn
  410     ..Sync or phase pulse generator
  411     ..Facsimile carrier as synchronization signal
  412     ..Phase or speed regulation
  413     ...Start-stop
  414     ...With particular clutch mechanism
  415     ...With pendulum
  416     ...With tuning fork
  417     ...With strobe
  418     ...With movable phase shifter
  419     ...Receiver motor power transmitted from transmitter
  420     ...Receiver motor power source frequency change
  421     ...Receiver motor power source voltage change
  422     ...Receiver motor power source interruption
  423     ...With resistance variable in receiver motor power source
  424     ...Stylus
  425     .Multiplex
  426     .Time or bandwidth compression
  261.1   ..Run length encoding
  261.2   ...Predictive or adaptive encoding
  261.3   ...Two dimensional encoding
  427     ...Using Huffman code
  261.4   ...Having addressable memory
  262.1   ..Two level to three level
  428     ..Interpolation
  429     ..Halftone or grey level processing
  430     ..Adaptive or predictive
  431     ..Fill bits or dummy signal
  432     ..Two dimensional or orthogonal
  433     ...Block
  434     .Auxiliary signal
  435     ..Transmitter and receiver both supply auxiliary signal(s)
  436     ...Auxiliary signal controls apparatus at both transmitter and
              receiver
  437     ..Interruption detection and control
  438     ..Transmitter supplies auxiliary signal(s)
  439     ..Receiver supplies auxiliary signal(s)
  440     ..Telephone number or address of designator
  441     ..Facsimile alarm
  442     .Facsimile system interface
  443     .Specific signal processing circuitry
  444     ..Memory interface
  445     ..Signal sampling and conversion
  446     ..Signal voltage or gain control
  447     ..Signal enhancing
  448     ..Image processing
  449     ...Document size detection
  450     ...Plural images combined into a single image
  451     ...Picture size conversion
  452     ...Image editing
  453     ...Image portion selection
  454     ...Moire effect elimination
  455     ...Gray level processing
  456     ....Halftone
  457     .....Dither matrix
  458     .....Gradation or spatial processing
  459     .....Variable halftone dot shape or size
  460     .....Addressable storage
  461     ....Shade correctionn
  462     ...Text and image detection and processing
  463     ...Noise elimination
  464     ...To distinguish intelligence from background
  465     ...Picture signal thresholding
  466     ....Variable thresholding technique
  467     ...Image classification and coding
  468     ..Facsimile control unit
  469     ..Carrier wave modulation
  470     .Coded character
  471     .Picture signal generator
  472     ..Combined read and write head
  473     ..Hand-held reader
  474     ..Scanning
  475     ...Facsimile illumination control
  476     ...Transceiver
  477     ...Nonlight
  478     ....Stylus type
  479     ...Facsimile video
  480     ...Coherent light
  481     ....Including a polygon reflector
  482     ...Solid state
  483     ....Charge coupled device
  484     ...Fiber optics or optical waveguides
  485     ...Cathode-ray tube
  486     ...Scan rate or document movement variation in accordance with
              data presence
  487     ...Facsimile transparency image scanning
  488     ...Document position detection
  489     ...Helical scanning pattern
  490     ....Transparent drum
  491     .....Internal scan
  492     ....Specified sheet clamp
  493     ...Curved scanning surface
  494     ...Linear scanning pattern
  495     ....Spiral or helix aperture with linear aperture
  496     ....Document moves during scanning
  497     ....Scanning element moves relative to a flat stationary
               document
  498     ...Document feed
  296     .Recording apparatus
  297     ..Ablative
  298     ..Halftone
  299     ...Engraving
  300     ..Electrostatic or electrolytic
  301     ..Magnetic
  302     ..Photographic
  303     ..Pressure (e.g., on carbon paper)
  304     ..With paper cutter
  305     MISCELLANEOUS
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  901     FIBER OPTICS
  902     PHOTOCHROMIC
  903     COMPUTER T.V. APPLICATIONS
  904     FREQUENCY RESPONSE MODIFICATION
  905     GHOST ELIMINATION
  906     HAND-HELD CAMERA WITH RECORDER IN A SINGLE UNITT
  907     TRACK SKIPPERS (I.E., "GROOVE SKIPPERS")
  908     PAUSE CONTROL (I.E., "COMMERCIAL KILLERS")
  909     ELECTRONIC STILL CAMERA OR SCENE REPRODUCER