US Pat. No. 10,582,598

LIGHT EMITTING DIODE ACTIVATION CONTROL

KATERRA INC., Menlo Park...

1. A system comprising:a first node configured to receive a pulsed electrical signal that includes signal current pulses;
a light emitting diode electrically coupled between the first node and a second node;
a capacitor electrically coupled between the first node and the second node in parallel with the light emitting diode; and
a capacitor control system electrically coupled to the capacitor and configured to:
enable discharging of the capacitor at an enable time that is during a particular time period between two particular signal current pulses of the pulsed electrical signal;
disable discharging of the capacitor at a disable time that is after the enable time and during the particular time period such that the capacitor discharges an intermediate current pulse over a discharge time period between the enable time and the disable time that are during the particular time period between the two particular signal current pulses; and
determine the discharge time period based on a charge of the capacitor.

US Pat. No. 10,448,466

STEM STRUCTURE AND LED LIGHTING DEVICE

Katerra Inc., Menlo Park...

1. A stem structure comprising:a substrate, configured to be bent into a substrate device with an internal hollow structure, wherein a plurality of LED lamp beads and a plurality of pin needles are attached to a surface of the substrate device;
a horn mouth comprising a first wide mouth portion and a first narrow mouth portion opposite to the first wide mouth portion, the first narrow mouth portion being provided with a plurality of upper guide wires for connecting to the plurality of pin needles;
a plurality of lower guide wires, disposed inside the horn mouth, and configured to be connected to the plurality of upper guide wires through the first narrow mouth portion; and
a glass tube disposed inside the horn mouth and attached to the plurality of lower guide wires.

US Pat. No. 10,608,467

SUPPLYING ELECTRICAL POWER TO MULTIPLE LOADS FROM MORE THAN ONE POWER SOURCE

KATERRA INC., Menlo Park...

1. A method of supplying electrical power to a plurality of sub-loads, the method comprising:obtaining a power demand, for a particular time period, of each sub-load of a plurality of sub-loads in which each of the sub-loads is supplied primary power of a primary power source, the primary power supplied to each of the sub-loads being individually metered by a third party;
obtaining an amount of available secondary power of a secondary power source that is available for the particular time period;
connecting, during the particular time period, the secondary power source instead of the primary power source to a first subset of sub-loads of the plurality of sub-loads based on an aggregate power demand of the first subset of sub-loads being less than or equal to the amount of available secondary power;
connecting, during the particular time period, the primary power source instead of the secondary power source to a particular sub-load of the plurality of sub-loads, the particular sub-load not being included in the first subset of sub-loads based on a sum of a particular demand of the particular sub-load and the aggregate power demand of the first subset of sub-loads exceeding the amount of available secondary power;
comparing the first subset of sub-loads with a second subset of sub-loads of the plurality of sub-loads based on secondary power distribution factors;
selecting the second subset of sub-loads based on the comparing;
connecting, during a second time period, the secondary power source instead of the primary power source to the second subset of sub-loads based on the selecting of the second subset of sub-loads and an aggregate power demand of the second subset of sub-loads being less than or equal to the amount of available secondary power; and
connecting, during the second time period, the primary power source instead of the secondary power source to the first subset of sub-loads based on the selecting of the second subset of sub-loads.

US Pat. No. 10,742,030

DYNAMIC LOAD BALANCING

KATERRA INC., Menlo Park...

1. A power distribution system, comprising:a switching system including a first plurality of switches and a second plurality of switches, the first plurality of switches configured to receive power from a plurality of sources that includes a plurality of grid sources and the second plurality of switches each configured to receive power from a different one of the first plurality of switches and at least one alternative energy source, the switching system configured to selectively couple each load of a plurality of loads to any one of the plurality of sources and each load when coupled to one of the plurality of sources is electrically coupled only to the one of the plurality of sources and electrically isolated from the other of the plurality of sources, wherein each grid source of the plurality of grid sources is configured to supply power at a phase offset from a phase of every other grid source and the at least one alternative energy source includes one or more of: solar power, wind power, and geothermal power;
a plurality of power sensors, each of the plurality of sensors coupled in series between one of the first plurality of switches and one of the second plurality of switches, the plurality of power sensors configured to determine sensor information including a current level of one or more characteristics of power flowing between the plurality of first switches and the plurality of second switches;
a plurality of slave monitoring devices, each of the plurality of slave monitoring devices coupled in series between one of the second plurality of switches and one of the plurality of loads, the plurality of slave monitoring devices configured to determine monitor information including a current level of one or more characteristics of power flowing between the plurality of second switches and the plurality of loads; and
a master monitoring unit configured to:
select a source of the plurality of sources for each load of the plurality of loads based on the sensor information, the monitor information and at least one of: a predicted amount of power generated by the at least one alternative energy source and a predicted power demand of the plurality of loads, and
direct the switching system to selectively couple each load of the plurality of loads to the selected source of the plurality of sources.

US Pat. No. 10,941,546

MECHANICAL ELECTRICAL PLUMBING TUNNEL

Katerra Inc., Menlo Park...

1. A Mechanical Electrical Plumbing (MEP) tunnel comprising:a rear side;
a first side;
a second side, the second side and the first side connecting with the rear side;
at least one first open track located on the first side; and
at least one second open track located on the second side,
wherein the MEP tunnel is configured to be disposed in a wall frame.

US Pat. No. 10,975,562

SMART CORNER AND WALL FRAME SYSTEM

Katerra Inc., Menlo Park...

1. A smart corner comprising:a rear side including a first hole;
a first side including a second hole, the first side connected to the rear side along a first edge; and
a second side including a third hole, the second side connected to the rear side along a second edge opposite the first edge;
wherein the smart corner is configured to connect to at least one second smart corner using at least one fastener through at least one of the first hole, second hole, and third hole and corresponding holes in the at least one second smart corner.

US Pat. No. 11,032,895

WIRELESS LIGHT SWITCH WITH ENERGY MANAGEMENT CONTROL

Katerra Inc., Menlo Park...

1. A wireless light switch for controlling a light fixture, the wireless light switch comprising:a. an energy harvesting circuit configured to harvest energy from light external to the wireless light switch;
b. an energy storage element coupled to the energy harvesting circuit;
c. a wireless transmitter; and
d. a power and control circuit coupled to the energy harvesting circuit, the energy storage element, and the wireless transmitter, wherein the power and control circuit is configured to provide power to the wireless transmitter and to provide control signaling to the wireless transmitter for controlling the light fixture.