This class deals with the transmission of a picture or the recording or reproducing of a sequence of pictures in which the local light variation composing a picture is not subject to the variation of time by methods involving the following steps: Step (1), the scanning of a picture, i.e., the analysis of the whole of a picture-containing area by resolving it into an area or a plurality of areas of which at least one of the two dimensions is elemental, simultaneously or in a sequence, and the derivation in response thereto of a picture-representative electric signal; and Step (2), the reproduction of the whole of a picture-containing area by the reproduction in response to a picture-representative electric signal of an area or a plurality of areas of which at least one of the two dimensions is elemental, simultaneously or in a sequence.
In this class Pictorial Communication Systems are those systems for the transmission and reproduction of arbitrarily composed pictures in which the local light variations composing a picture are not subject to variation with time, e.g., documents (both written and printed), maps, charts, photographs (other than motion picture film).
SUBCOMBINATIONS OF PICTORIAL COMMUNICATION SYSTEMS
This class includes circuits specially designed for dealing with pictorial communication signals, as distinct from merely signals of a particular frequency range.
Electrical circuits not specific to pictorial communication which may constitute subcombinations of such apparatus are classified in the appropriate class for such circuits.
LINES WITH OTHER CLASSES
COMBINATIONS OF OTHER APPARATUS WHICH INCLUDE APPARATUS OFTHIS CLASS This class does not include the following subject matter:
1. Systems in which legible alphanumeric or like character forms are analyzed according to Step (1) to derive an electric signal from which the character is recognized by comparison with stored information, which are dealt with elsewhere. (See References to Other Classes, below.)
2. Systems for the direct photos:graphic copying of an original picture in which an electric signal representative of a characteristic of the picture is derived and employed to modify the operation of the system, which are dealt with elsewhere. (See References to Other Classes, below.)
3. Systems for the reproduction according to Step (2) of
pictures comprising alphanumeric or like character forms but involving the production of the equivalent of a signal which would be derived by Step (1), e.g., by cams, punched card or tape, coded control signal or other means, which are dealt with elsewhere. (See References to Other Classes, below.)
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS
73, Measuring and Testing,
596+, for measuring and testing apparatus including acoustic imaging.
205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,
52+, for electrolytic marking
250, Radiant Energy, 200+, and 216+ photocells, circuits and optics therefor; subclasses 330+ and 338+ for devices responsive to invisible radiation.
312, Supports: Cabinet Structure,
7.1+, television cabinets.
313, Electric Lamp and Discharge Devices,
364+, cathode-ray tubes.
315, Electric Lamp and Discharge Devices: Systems,
1+, cathode-ray tube circuits.
318, Electricity: Motive Power Systems,
41, and 85 synchronization circuitry.
324, Electricity: Measuring and Testing,
76.12+, analysis of complex waves.
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems, particularly 1+, for miscellaneous signal discriminating or separating and subclasses 100+ for miscellaneous signal production or conversion.
311+, 315+, 345+, and 347+, for pulse, frequency, phase, or amplitude demodulators, respectively.
11, D.C. reinsertion circuit; subclasses 127+, control of power supply, and subclass 149, noise compensation.
20, and 172, television type oscillator synchronization.
332, Modulators, various subclasses, modulators.
333, Wave Transmission Lines and Networks,
14, and 24+, companders and coupling networks.
334, Tuners, various subclasses, tuners. 341, Coded Data Generation or Conversion, appropriate subclasses for code converters wherein the signal may be encoded to reduce bandwidth.
342, Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation),
1+, for plural display systems. (Lines With Other Classes and Within This Class, "Combinations of Other Apparatus Which Include Apparatus of This Class")
150.1+, for electric recording of phenomenon, particularly subclasses 150.2 for electrical discharge and 150.3 for electrochemical; subclass 134, particular record receivers; subclass 139, scanning devices for markers, and subclasses 107.1+ for light or beam recording of phenomenon.
347, Incremental Printing of Symbolic Information,
112+, for electrostatic marking, particularly subclasses 129+ for photo scanning, subclasses 224+ for light or beam marking.
348, Television, for television camera, video display, transmission or general television signal processing of a sequence of images which can portray motion.
352, Optics: Motion Pictures,
4, and 131, prompters and motion picture-television combinations, and subclasses 166+, projector drive mechanisms.
20, and 84 for light source and scanning light source, respectively.
38, for systems for the direct photos:graphic copying of an original picture in which an electric signal representative of a characteristic of the picture is derived and employed to modify the operation of the system. (Lines With Other Classes and Within This Class, "Combinations of Other Apparatus Which Include Apparatus of This Class")
356, Optics: Measuring and Testing,
3+, range or distance measurement; subclasses 426+ and 237.1+ for inspection devices, and subclasses 402+, shade or color measuring.
359, Optics: Systems (Including Communication) and Elements, various subclasses for optical devices, especially
1+, holography; subclasses 196+ and 887, light beam deflectors and sequentially additive filters.
360, Dynamic Magnetic Information Storage or Retrieval, 9.1+, 14.1+, 19.1, 33.1+ for dynamic magnetic recorders peculiar to noncolor television signal processing.
361, Electricity: Electrical Systems and Devices,
243, for synchronization of shafts; and subclasses 173+ and 211 for a photosensitive device in circuits for electromagnets.
365, Static Information Storage and Retrieval, appropriate subclass. The storage of information, which includes video signal processing, is excluded from this class.
369, Dynamic Information Storage or Retrieval, appropriate subclasses for recording or reproducing information absent any feature peculiar to video processing.
370, Multiplex Communications, appropriate subclasses for multiplex systems in general.
380, Cryptography, especially
5, 7, and 10+ for cryptos:graphic video equipment and techniques.
382, Image Analysis,
181+, for pattern recognition or alphanumeric character sensing.
382, Image Analysis, for systems in which legible alphanumeric or like character forms are analyzed according to the Class Definition, General Statement of the Subject Matter, Step (1), above, to derive an electric signal from which the character is recognized by comparison with stored information. (Lines With Other Classes and Within This Class, "Combinations of Other Apparatus Which Include Apparatus of This Class") 385, Optics Waveguides, appropriate subclasses for fiber optics, per se.
386, Television Signal Processing for Dynamic Recording or Reproducing,
1+, and 46+ for recording or reproducing of color or black and white television signal.
395, Information Processing System Organization,
80+, for data processing of robot control systems, 180+ for digital processing reliability and availability, 200.3+ for multiple computer data transfer, and 821 through 894 for transferring data from one or more peripherals to one or more computers for the latter to process, store, or further transfer or for transferring data from computers to peripherals.
396, Photography, various subclasses, pictorial information recording devices.
9+, for diagnostics, subclasses 38+ for controls, subclasses 130+ for image formation, subclasses 168+ for charging, subclasses 177+ for exposure, subclasses 222+ for development, subclasses 297+ for transfer, subclasses 320+ for fixing, subclasses 343+ for cleaning, and subclasses 361+ for document handling.
409, Gear Cutting, Milling, or Planing,
2+, 79+, 245+, and 289+ for a pattern controlled device including scanning.
430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof, appropriate subclasses for process, composition, and product involving radiation imagery chemistry. 434, Education and Demonstration,
307, teaching devices including television combinations.
455, Telecommunications, various subclasses, transmitters and receivers.
150+, for high temperature (Tc 30 K) superconducting devices, particularly subclasses 181+ for photoconductive, light transmissive, light emissive, or light responsive devices, or subclasses 202+ for electrical communication systems.
704, Data Processing: Speech Signal Processing, Linguistics, Language Translation and Audio Compression/Decompression,
200+, for artificial intelligence systems that process speech signals, subclassees 500 through 504 for bandwidth, or time compression, or expansion of audio signals.
706, Data Processing: Intelligent Processing Systems and Methods, various subclasses for artificial intelligence systems that represent, apply, and acquire knowledge.
707, Data Processing: Database and File Management, Data Structures, or Document Processing,