Zetta Research and Development, LLC Forc Series

Vium, Inc.

Joe Betts-Lacroix

Kim Rubin

Kevin Harada

Gordon Bryce Jensen

A device and method of keeping litter in an animal cage away from equipment in an animal cage. Embodiments comprise two or more walls to define three zones in an animal cage: an equipment zone, a channel zone, and an outsize zone. The channel zone connects the outside zone with the equipment zone. Baffles in the channel zone permit access by animals but block some fraction of litter from passing from the outsize zone into the equipment zone. Embodiments include a weighing scale in the equipment zone. Embodiments include shapes that constrain devices or equipment to predetermined locations within a cage. Embodiments include methods of use and use in a vivarium.

Device and method of restricting animal litter movement

A vehicle-to-vehicle (V2V) communication transponder for use in V2V communication, safety and anti-collision systems using a hybrid protocol combining time-division multiplexed access (TDMA), with collision sense multiple access (CSMA) protocol. The TDMA frame is broken into regions, a priority and emergency TDMA region, and a non-priority CSMA region. The sizes of the TDMA regions change dynamically based on demand, with the CSMA region using the remaining time slots. Transponders self-select time slots; selected slots are held until a new time slot selection criteria; all transponders participate in notifying a transponder of a time slot message collision. An inter-transmission guard time may be dynamic based on range. Embodiments are free of MAC and IP addresses. No central authority or road-side equipment (RSU) is required. Embodiments include equipped vehicles and V2V system using the transponder.

V2V system with a hybrid physical layer

A vehicle-to-vehicle (V2V) communication transponder for use in V2V communication, safety and anti-collision systems using only a vehicle location for vehicle ID is described. Message embodiments are free of pre-assigned permanent vehicle identification. A hybrid TMDA and CSMA protocol is used. Vehicle position is broadcast as an offset in distance units from a pre-defined geographical grid in degree units. A transponder may proxy for non-equipped vehicle. A proxy handoff and message coding for a proxy message are described. Embodiments are free of MAC and IP addresses. No central authority or road-side equipment (RSU) is required. Embodiments include equipped vehicles and V2V system using the transponder. Embodiments include equipped vehicles and V2V system using the transponder.

V2V safety system using vehicle location as vehicle identification

A vehicle-to-vehicle (V2V) communication system, method and transponder for use in V2V communication, safety and anti-collision systems uses a continual, iterative consensus algorithm involving a consensus subset of vehicles within a communication range. The consensus set of vehicles participating in the consensus algorithm may not be the same. The algorithm comprises determining a parameter value used by the vehicles in the consensus set, then averaging, with modifications and rate of change limitations, the values from the consensus set for next use by each transponder. Parameters include two axis of location, elevation, transmit power and time base. Transmit power is responsive to demand and range. Methods of obtaining the as-used values include using equations and ranges. Embodiments include a hybrid protocol using both TDMA and CSMA. The invention is free of both central authority and road-side equipment (RSU).

V2V safety system using consensus

A vehicle-to-vehicle (V2V) communication transponder for use in V2V communication, safety and anti-collision systems incorporating a location point store and a lane records store, wherein the lane records are constructed by the transponder from the point in the location point store, location points are received from other moving transponders, and lane records are shared between transponder response to a request. Separate source counts are kept for internally generated and shared lane records. Methods of sharing are described. Lane types are also derived from the location point store and other vehicle behavior. No central authority, road-side equipment, (RSU), or pre-determined lane maps are required. Embodiments include a hybrid protocol using both TDMA and CSMA. Some embodiments are free of MAC and IP addresses. Embodiments include equipped vehicles and V2V system using the transponder.

Growing community of inventors

Belmont, CA, United States of America

Joe Betts-Lacroix