US PATENT SUBCLASS 359 / 125
.~.~.~ Subscriber system

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

109  DF  OPTICAL COMMUNICATION {13}
115  DF  .~ Multiplex {7}
124  DF  .~.~ Wavelength division/frequency division (includes scattering, e.g., Raman, Brillouin, etc.) {4}
125.~.~.~ Subscriber system {1}
126  DF  .~.~.~.~> Optical source at only one station

DEFINITION

Classification: 359/125

Subscriber system:

(under subclass 124) Subject matter comprising plural stations prearranged to enable preselected stations to receive identified information at the same time it is transmitted.

(1) Note. These systems transmit the data without any coding, but the data itself identifies the specific stations that are to receive the transmitted data.

SEE OR SEARCH CLASS

379, Telephonic Communications, appropriate subclasses for nonoptical subscriber checking.

380, Cryptography, appropriate subclasses for coding of the information signal to prevent unauthorized users from receiving the information.