| DefinitionA. This is the generic class for antennas for the transmission of radio wave energy through the natural media (i.e., air, earth, water, etc.) for point-to-point communication or for the reception of such transmitted radio wave energy. B. In this class are apparatus and systems which constitute part of an antenna transmission or reception apparatus or system and which are limited to use in connection with the transmission and reception of radio wave energy, e.g., electromagnetic horns and arrays. C. Exclusions: 1. This class excludes noncommunication applications involving radio waves, such as resiation by radio waves for therapeutic purposes or for measuring and testing a physical parameter where no communications or signaling is involved. 2. Also excluded from this class are systems, such as detector and receiver systems, oscillation generator systems, modulator systems, amplifier systems, which are used as component parts of radio wave energy transmission or reception systems but which are of more general utility. 3. This class also excludes communication by electromagnetic waves other than radio waves (e.g., by partial rays, compressional waves, etc.). Communication restricted to rays or visible light, heat, infrared, ultraviolet, X-rays, cathode rays, ions, gamma rays, and beta rays, as well as inductive coupling are excluded from this class. See References to Other Classes, below. | Lines with other classes and within this classTELEDYNAMICS OTHER THAN SIGNALING: See Class Definition, C, above for the radio wave energy systems for controlling apparatus and mechanism other than indicating or measuring instruments which are included in this class. See subclass 7 of this class and the search notes thereto for the miscellaneous systems for controlling apparatus other than indicating and measuring instruments which are classified in this class. See the classes specified under "SEARCH CLASS" below for a reference to some of the other classes which provide for radiant energy controlled devices and apparatus. COMMUNICATIONS: Many classes provide for devices, apparatus and systems useful in communicating information. For example, one class provides for means for displaying information by printed or painted cards, calendars, pictures, labels, tags and signs. Another class provides for recording systems and recorders, etc. Class 343 is primarily concerned with the information conveyed by means of radio wave energy signals and with radio wave energy teledynamics. Also see References with Other Classes below. SIGNALING: For the relationship of Class 343 to the signaling classes, see the classes referencing this section in References to Other Classes, below. MEASURING AND TESTING: This class includes some patents for measuring, detecting, and/or utilizing radio wave energy. The detection of objects, or the use of radio wave energy to measure distance, direction, and/or velocity of an object is included in this class when the only measurement is of the amplitude of the radio wave energy, or of the direction in which the energy is transmitted or the direction from which the energy is received, or where the duration of time the energy is being propagated is measured, or where only the detection of radio wave energy is involved. This class also includes the measurement of the amplitude or intensity of the radiated radio wave energy where the measurement is performed by detecting and measuring the energy. Antennas combined with structure for measuring the magnitude of the signal energy flowing in, to, or from the antenna, a significant relationship existing between the antenna and the measuring structure, are classified in subclass 703 of this class. For other measuring and testing, see References to Other Classes, below. |
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