US PATENT SUBCLASS 359 / 142
.~ Remote control

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

109  DF  OPTICAL COMMUNICATION {13}
142.~ Remote control {6}
143  DF  .~.~> Bidirectional (i.e., monitoring or acknowledge)
144  DF  .~.~> In industrial environment (e.g., robot control)
145  DF  .~.~> With radio link
146  DF  .~.~> With television or radio system
147  DF  .~.~> Switching
148  DF  .~.~> Plural functions

DEFINITION

Classification: 359/142

Remote control:

(under subclass 109) Subject matter wherein a variable device is used to modulate an optical transmitter at a first location in order to control a remote electrically operated second device at a second location via an optical communication link between the transmitter and an optical receiver located at the second location and connected to the

second device.

(1) Note. The devices herein specifically exclude devices solely for making information or intelligence perceptible to an individual.

(2) Note. Optical signal control devices for particular or broadly recited art devices are classified in this subclass unless there is provision for this combination in the art devices.

(3) Note. Optical signal control devices for particular art devices are classified with the art device if the features thereof are particularly recited.

(4) Note. Optical telemetry includes the combination of an optical data link between multiple locations together with a specific sensor used in a particular environment. Since the overall combination specifies an environment and specific sensor, the environment or sensor will control the classification. The following are examples of proper art areas for optical telemetry: (a) Wellbore telemetry including any type of radiant energy (i.e., optical, radio, etc.) is classified in Class 340, subclasses 853.1+; (b) An optical data link in combination with a specific sensor go to Class 340, subclasses 870.28+ unless there is a place for the specific sensor in another class, other than Class 359.

SEE OR SEARCH CLASS

330, Amplifiers, 59, for electrical amplifiers combined with a nonmodulated light controlled or activated device that is not part of the amplifying device.

379, Telephonic Communications,

74+, for remote control over a telephone line.