US Pat. No. 9,860,961

LIGHTING FIXTURES AND METHODS VIA A WIRELESS NETWORK HAVING A MESH NETWORK TOPOLOGY

Digital Lumens Incorporat...

1. A smart power and light management apparatus to control at least one light engine configured to provide variable illumination
to at least a portion of an environment, the smart power and light management apparatus comprising:
a digital light agent (DLA), to control the at least one light engine via at least one LED driver;
at least one sensor, coupled to the DLA, to provide at least one sensor signal representative of at least one change in the
environment;

a memory, coupled to the DLA, to store at least one rule governing a corresponding change in the variable illumination provided
by the at least one light engine based at least in part on the at least one change in the environment; and

a network interface, coupled to the DLA, to facilitate wireless communication of sensor data between the smart power and light
management apparatus and a plurality of apparatuses in a wireless network having a mesh network topology,

wherein:
in operation the DLA commands the at least one LED driver to manage power to the at least one light engine based at least
in part on at least one of the at least one sensor signal, the at least one rule, and at least some of the sensor data communicated
via the network interface; and

the network interface:
receives a first sensor data signal transmitted by one of the plurality of apparatuses in the wireless mesh network;
transmits a second sensor data signal to at least one other of the plurality of apparatuses in the wireless mesh network;
and

transmits a repeated first sensor data signal to the at least one other of the plurality of apparatuses in the wireless mesh
network.

US Pat. No. 9,241,392

METHODS, SYSTEMS, AND APPARATUS FOR PROVIDING VARIABLE ILLUMINATION

Digital Lumens, Inc., Bo...

1. An apparatus for controlling at least one digital control ready (DCR) lighting fixture, the apparatus comprising:
at least one sensor to provide at least one sensor signal representative of the at least one change in the environment;
a memory to store at least one rule governing a change in the variable illumination provided by the at least one DCR lighting
fixture based at least in part on the at least one change in the environment;

a processor, operably coupled to the at least one sensor and to the memory, to generate the at least one digital control signal
based on the at least one rule and the at least one sensor signal; and

an input/output bus, operably coupled to the processor, to receive the at least one digital reporting signal and direct current
(DC) power from the at least one DCR lighting fixture and to provide the at least one digital control signal to the at least
one DCR lighting fixture and to at least one other DCR lighting fixture serially coupled to the at least one DCR lighting
fixture.

US Pat. No. 9,125,254

LIGHTING FIXTURES AND METHODS OF COMMISSIONING LIGHTING FIXTURES

Digital Lumens, Inc., Bo...

1. A method of illuminating an environment operated by a first party with at least one lighting fixture managed by a second
party, the method comprising:
(A) determining, by the first party and the second party, a desired illuminance level and/or a desired illuminance distribution
in at least a portion of the environment;

(B) storing, in a memory, a representation of the desired illuminance level and/or in the desired illuminance distribution
determined in (A);

(C) illuminating the at least a portion of the environment with the at least one lighting fixture;
(D) measuring an illuminance level and/or an illuminance distribution in the at least a portion of the environment illuminated
in (C);

(E) performing a comparison of a representation of the illuminance level and/or the illuminance distribution measured in (D)
to the representation of the desired illuminance level and/or in the desired illuminance distribution stored in (B); and

(F) adjusting illumination provided by the at least one lighting fixture based at least in part on the comparison performed
in (E).

US Pat. No. 9,510,426

METHODS, SYSTEMS, AND APPARATUS FOR INTELLIGENT LIGHTING

Digital Lumens, Inc., Bo...

1. A lighting fixture to illuminate an environment, the lighting fixture comprising:
A) a memory to store a first transfer function mapping a first ambient light level at a first position within the environment
to a corresponding second ambient light level at a second position within the environment, wherein the first position is at
the lighting fixture and the second position is at a task height within the environment;

B) an ambient light sensor located at the first position within the environment to measure an actual ambient light level at
the first position within the environment;

C) a processor, communicatively coupled to the memory and the ambient light sensor, to determine:
C1) an expected ambient light level at the second position within the environment, based on the actual ambient light level
measured at the first position within the environment and the first transfer function stored in the memory; and

C2) a change in a light output of the lighting fixture to provide a desired ambient light level at the second position within
the environment, based at least in part on the expected ambient light level at the second position within the environment;
and

D) at least one light source, communicatively coupled to the processor, to generate the change in the light output of the
lighting fixture so as to provide the desired ambient light level at the second position within the environment.

US Pat. No. 9,072,133

LIGHTING FIXTURES AND METHODS OF COMMISSIONING LIGHTING FIXTURES

Digital Lumens, Inc., Bo...

1. A method of commissioning a first lighting fixture in a network of lighting fixtures with a handheld device, the first
lighting fixture comprising a first receiver to receive wireless signals and an ambient light sensor to sense an amount of
ambient light in the environment illuminated by the network of lighting fixtures, the method comprising:
A) storing, in a nonvolatile memory, address information representative of a unique first network address of the first lighting
fixture;

B) receiving a commissioning signal from the handheld device via at least one of the first receiver and the ambient light
sensor;

C) in response to the commissioning signal received in B), transmitting the address information stored in A) via a first wireless
signal from the receiver in the first lighting fixture to at least one second lighting fixture in the network of lighting
fixtures;

D) receiving a second wireless signal, via the first receiver, from the at least one second lighting fixture, the second wireless
signal representative of a unique second network address of the at least one second lighting fixture;

E) generating a representation of the network of lighting fixtures based at least in part upon the first address information
stored in A) and the second wireless signal received in D); and

F) assigning the first lighting fixture and the at least one second lighting fixture to respective zones in the network of
lighting fixtures based at least in part upon the representation generated in E).

US Pat. No. 9,832,832

METHODS, SYSTEMS, AND APPARATUS FOR PROVIDING VARIABLE ILLUMINATION

Digital Lumens, Inc., Bo...

1. An apparatus for controlling at least one dimmable lighting fixture by varying a variable output power provided to the
at least one dimmable lighting fixture, the apparatus comprising:
at least one sensor to generate at least one sensor signal representative of a change in an environment illuminated by the
at least one dimmable lighting fixture;

an alternating current (AC) power input to receive AC electrical power;
a switchable power supply, operably coupled to the AC power input, to generate the variable output power;
a power measurement circuit, operably coupled to the AC power input, to monitor electrical power consumption of the at least
one dimmable lighting fixture;

a processor, operably coupled to the at least one sensor and the switchable power supply, to generate at least one digital
control signal based on the electrical power consumption and the at least one sensor signal and to control the variable output
power generated by the switchable power supply; and

at least one interface, operably coupled to the processor, to send and receive information related to the operation of the
at least one dimmable lighting fixture and to provide the variable output power to the at least one dimmable lighting fixture.

US Pat. No. 9,924,576

METHODS, APPARATUSES, AND SYSTEMS FOR OPERATING LIGHT EMITTING DIODES AT LOW TEMPERATURE

Digital Lumens, Inc., Bo...

1. A lighting fixture comprising:
a plurality of light emitting diodes arranged in series, the plurality of light emitting diodes comprising at least one first
light emitting diode;

a constant-voltage power supply, operably coupled to the plurality of light emitting diodes, to provide a constant voltage
across the plurality of light emitting diodes;

a sensor, in electrical communication with the plurality of light emitting diodes, to measure a decrease in temperature of
the plurality of light emitting diodes, the decrease in temperature of the plurality of light emitting diodes causing an increase
in series voltage across the plurality of light emitting diodes; and

a bypass circuit, operably coupled to the sensor, to short-circuit the at least one first light emitting diode in response
to the increase in the series voltage so as to reduce the series voltage below the constant voltage provided by the constant-voltage
power supply,

wherein:
the bypass circuit is configured to enable the at least one first light emitting diode for a predetermined period after disabling
the at least one first light emitting diode in response to the increase in the series voltage; and

the sensor is configured to measure a change in the temperature of the plurality of light emitting diodes while the at least
one light emitting diode is enabled.

US Pat. No. 9,915,416

METHOD, APPARATUS, AND SYSTEM FOR OCCUPANCY SENSING

Digital Lumens Inc.

1. An apparatus for adjusting illumination of a lighting fixture illuminating an environment, the apparatus comprising:
at least one occupancy sensor to provide sensor data representing at least one occupancy event in the environment illuminated
by the lighting fixture;

a memory, operatively coupled to the at least one occupancy sensor, to log the sensor data provided by the at least one occupancy
sensor; and

at least one processor, operatively coupled to the lighting fixture and the memory, to:
partition the logged sensor data into a plurality of clusters based on at least one classification parameter;
adjust a sensor timeout based on at least one cluster in the plurality of clusters, the sensor timeout representing an amount
of time between a change in the at least one occupancy event and a change in the illumination of the lighting fixture;

generate at least one output state based on at least one characteristic of each cluster of at least a subset of the plurality
of clusters; and

adjust the illumination of the lighting fixture based on the at least one output state and the sensor timeout.

US Pat. No. 10,306,733

METHODS, SYSTEMS, AND APPARATUS FOR INTELLIGENT LIGHTING

Digital Lumens, Inc., Bo...

1. A lighting fixture to illuminate an environment, the lighting fixture comprising:a memory to store a first transfer function mapping at least a first target light level to a corresponding first operating state and a second target light level to a corresponding second operating state;
an ambient light sensor to measure an actual ambient light level within the environment;
an occupancy sensor to detect a first occupancy event within the environment;
a processor, communicatively coupled to the memory, the occupancy sensor, and the ambient light sensor, to:
transition from the first operating state to the second operating state based on the first occupancy event and to determine:
the second target light level at the second operating state, based on the actual ambient light level and the first transfer function stored in the memory; and
a change in a light output of the lighting fixture based at least in part on the second target light level at the second operating state; and
at least one light source, communicatively coupled to the processor, to generate the change in the light output of the lighting fixture so as to illuminate the environment.

US Pat. No. 10,264,652

METHODS, SYSTEMS, AND APPARATUS FOR INTELLIGENT LIGHTING

Digital Lumens, Inc., Bo...

1. A system for controlling illumination of an environment, the system comprising:(A) at least one lighting fixture disposed to illuminate a first portion of the environment, the lighting fixture comprising:
(A1) a light source to emit illumination;
(A2) a light source driver, operably coupled to the light source, to provide a variable amount of power to the light source;
(A3) a power meter, operably coupled to the light source driver, to measure electrical power supplied to the light source;
(A4) a sensor, to sense the presence of a person and/or object within the first portion of the environment;
(A5) a fixture processor, operably coupled to the light source driver, the energy usage sensor, and the environmental sensor, to determine a location and identity of the person and/or object within the first portion of the environment, to identify a lighting profile associated with the person and/or object within the first portion of the environment, and to adjust the illumination emitted by the light source based at least in part on the lighting profile; and
(A6) a fixture memory, operably coupled to the power meter and the sensor, to store an indication of total electrical power supplied to the light source; and
(A7) a fixture communications interface, operably coupled to the fixture processor, to transmit an indication of the presence of the person and/or object and the indication of total electrical power supplied to the light source;
(B) at least one gateway, communicatively coupled to the at least one lighting fixture, the at least one gateway comprising:
(B1) a gateway communications interface to receive the indication of the presence of the person and/or object and the indication of total electrical power supplied to the light source;
(B2) a gateway memory, operably coupled to the gateway communications interface, to store the indication of the presence of the person and/or object and the indication of total electrical power supplied to the light source; and
(B3) a gateway processor, operably coupled to the gateway communications interface and the gateway memory, to provide an updated lighting profile associated with the person and/or object within the first portion of the environment to the at least one lighting fixture; and
(C) at least one server, communicatively coupled to the at least one gateway, the at least one server comprising:
(C1) a server communications interface to transmit the updated lighting profile to the at least one gateway and to receive the indication of total electrical power supplied to the light source from the at least one gateway; and
(C2) a server processor, operably coupled to the server communications interface, to determine the updated lighting profile based at least in part on the indication of total electrical power supplied to the light source from the at least one gateway.

US Pat. No. 10,485,068

METHODS, APPARATUS, AND SYSTEMS FOR PROVIDING OCCUPANCY-BASED VARIABLE LIGHTING

Digital Lumens, Inc., Bo...

1. A method of controlling illumination of an environment by a light fixture disposed at a first location, the method comprising:detecting a presence of a person or object of interest in the environment;
detecting an ambient light level in the environment;
in response to detecting the presence of the person or object of interest in the environment, entering an active state in which the light fixture is controlled to illuminate the environment at a first dimming level based on the ambient light level in the environment;
detecting an absence of the person or object of interest in the environment while in the active state;
in response to detecting the absence of the person or object of interest in the environment while in the active state, entering a countdown state in which the light fixture is controlled to illuminate the environment at the first dimming level for a controllably variable transition delay time; and
in response to expiration of the controllably variable transition delay time without detecting the presence of the person or object of interest in the environment, entering an inactive state in which the light fixture is controlled to illuminate the environment at a second dimming level based on the ambient light level in the environment,
wherein the light fixture is operably connected to a state machine, the state machine being operable to change the controllably variable transition delay time in response to a signal from a remote device.