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US 11,894,874 B2Granted
Communication network system and lighting fixture
AssigneeMurata Manufacturing Co., Ltd.
InventorsRyuken Mizunuma, Satoshi Tanaka, Yasuhisa Yamamoto, Akiko Itabashi
Life of this patent
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Abstract
A communication network system is a communication network system that distributes information to a plurality of terminals inside a closed space. The communication network system includes a network server and a plurality of lighting fixtures each having an antenna that transmits and receives millimeter-wave-band communication signals to and from the terminals.
Claims18
A communication network system configured to distribute information to a plurality of terminals inside a closed space, the communication network system comprising:
- a network server;
- and
- a plurality of lighting fixtures that each comprise an antenna configured to transmit and receive millimeter-wave-band communication signals to and from the terminals,
- wherein the plurality of lighting fixtures are configured to transmit and receive optical communication signals to and from the network server via optical fibers that directly connect the plurality of lighting fixtures to the network server.
1 more element
A lighting fixture comprising:
- a light-emitting element;
- a cover that allows light emitted by the light-emitting element to pass therethrough;
- a plurality of antennas, each antenna having a radiating surface that faces the cover and that is configured to transmit and receive millimeter-wave-band communication signals to and from a terminal;
- an optical cable connector configured to transmit and receive optical communication signals to and from a network server, the network server being configured to distribute information to a plurality of terminals, the plurality of terminals being configured to transmit and receive millimeter-wave-band communication signals to and from the plurality of antennas;
- and
- a base to which the cover is fixed.
3 more elements
Dependencies are inferred from the claim text.