Abstract: A diode has a first contact of a material having a first conductivity type, a second contact of a material having a second conductivity type arranged co-planarly with the first contact, a channel arranged co-planarly between the first and second contacts, a gate arranged adjacent the channel, and a voltage source electrically connected to the gate. A diode has a layer of material arranged on a substrate, a first region of material doped to have a first conductivity type, a second region of material doped to have a second conductivity type, a channel between the first and second regions formed of an undoped region, a gate arranged adjacent the channel, and a voltage source electrically connected to the gate.

Abstract: An embodiment is a method and apparatus for coherent ultrasonic imaging. A receiver array has a plurality of receiver elements on a substrate to detect in-phase and quadrature components of a received signal corresponding to a transmit signal. Each of the receiver elements includes a receiver transducer and a thin-film transistor (TFT) receiver circuit. The TFT receiver circuit includes a quadrature detector having a mixer to mix a received signal with a reference signal in a composite bias signal that is distributed across the plurality of receiver elements. A transmitter is acoustically coupled to the plurality of receiver elements to generate the transmit signal through an imaging medium.

Abstract: A method of building a room list in a structure having at least two rooms includes forming a mesh network in the structure with at least two nodes, each node having a room-limited communication module, analyzing signals from the room-limited communication modules between nodes, segmenting the nodes into rooms based upon the signals, and associating each node of the plurality of nodes with one of the rooms. A method of making a room list includes providing at least two nodes, measuring signals between nodes, analyzing the signals, and associating a grouping of nodes to a room based on the analyzing.

Abstract: A consumer product device has a consumer product, a communication module capable of communicating in a mesh network, and a power connector electrically coupled to the communication module.

Abstract: Systems and methods for generating a virtual representation of a structure that is associated with an ad hoc network comprising a plurality of nodes. Nodes within the ad hoc network may have a communication module configured to communicate with the ad hoc network using at least one of room-limited communications and room-transparent communications.

Abstract: Systems and methods for enrolling nodes into an ad hoc network associated with a multi-roomed structure. Nodes within the ad hoc network comprise a communication module configured to communicate with the ad hoc network using at least one of room-limited communications and room-transparent communications.

Abstract: A method of generating a representation of a structure includes providing an ad hoc mesh network having at least two nodes associated with the structure, obtaining time of flight data for each node in the network, and using the time of flight data to generate the representation of the structure. A method of generating a three-dimensional representation of a structure includes providing an ad hoc mesh network having at least three nodes associated with the structure, wherein at least one node is a mobile node that moves around the structure, obtaining time of flight data for each pair of nodes in the network, and using the time of flight data to generate the three-dimensional representation of the structure.

Abstract: A method of associating a function to a room within a home, includes forming a mesh network in the structure with a plurality of nodes, each node having a communication module, segmenting the nodes into rooms based upon the time of flight, obtaining an identity for at least one node in a room; and using the identity to assign a function to the room.

Abstract: A method of generating an action in an ad hoc wireless network includes providing an ad hoc mesh network of nodes having at least one node associated with a consumer product and at least one node capable generating node data about a consumer product, sending node data to a computing device, using the computing device to retrieve data from a database and associate the data with the node data, and determining, at the computing device, an action based upon the association, and executing an action using the computing device.

Abstract: Systems and methods for enrolling nodes into an ad hoc network associated with a multi-roomed structure. Nodes within the ad hoc network comprise a communication module configured to communicate with the ad hoc network using at least one of room-limited communications and room-transparent communications.

Abstract: Systems and methods for enrolling nodes into an ad hoc network associated with a multi-roomed structure. Nodes within the ad hoc network comprise a communication module configured to communicate with the ad hoc network using at least one of room-limited communications and room-transparent communications.

Abstract: Systems and methods for enrolling nodes into an ad hoc network associated with a multi-roomed structure. Nodes within the ad hoc network comprise a communication module configured to communicate with the ad hoc network using at least one of room-limited communications and room-transparent communications.

Abstract: A lighting device has a light emitter receptacle, a power connector configured to connect to a power source, the power connector connected to the receptacle, and a communication module. A network of lighting devices has a plurality of lighting devices, each light device including a communications module, and a light emitter receptacle. The network is a wireless, ad hoc network having nodes corresponding to the lighting devices, wherein one of the lighting devices acts as a master node, the master node having a port connected to an external network and a nonvolatile memory.

Abstract: An electronic test system to evaluate the pixel and array properties of active-matrix displays that use charge or current sensitive circuits attached to the array data lines is described. Leakage-current, charging time, and other metrics can be measured for all pixels in the array without electrical or optical connection to the interior of the array. Charge or current sensitive amplifiers and selected voltage drivers may be used in conjunction with variable timing and voltages to determine individual transistor properties over an entire array in just a few seconds. Signals to be measured may be injected in several ways. Ultimately, an output signal for each pixel is measured. Thus, based on the output signal, the charging time or current, the leakage time or current, and other pixel or transistor parameters may be characterized for the entire array.

Abstract: An embodiment is a method and apparatus for coherent ultrasonic imaging. A receiver array has a plurality of receiver elements on a substrate to detect in-phase and quadrature components of a received signal corresponding to a transmit signal. Each of the receiver elements includes a receiver transducer and a thin-film transistor (TFT) receiver circuit. The TFT receiver circuit includes a quadrature detector having a mixer to mix a received signal with a reference signal in a composite bias signal that is distributed across the plurality of receiver elements. A transmitter is acoustically coupled to the plurality of receiver elements to generate the transmit signal through an imaging medium.

Abstract: An electronic test system to evaluate the pixel and array properties of active-matrix displays that use charge or current sensitive circuits attached to the array data lines is described. Leakage-current, charging time, and other metrics can be measured for all pixels in the array without electrical or optical connection to the interior of the array. Charge or current sensitive amplifiers and selected voltage drivers may be used in conjunction with variable timing and voltages to determine individual transistor properties over an entire array in just a few seconds. Signals to be measured may be injected in several ways. Ultimately, an output signal for each pixel is measured. Thus, based on the output signal, the charging time or current, the leakage time or current, and other pixel or transistor parameters may be characterized for the entire array.

Abstract: A diode has a first contact of a material having a first conductivity type, a second contact of a material having a second conductivity type arranged co-planarly with the first contact, a channel arranged co-planarly between the first and second contacts, a gate arranged adjacent the channel, and a voltage source electrically connected to the gate. A diode has a layer of material arranged on a substrate, a first region of material doped to have a first conductivity type, a second region of material doped to have a second conductivity type, a channel between the first and second regions formed of an undoped region, a gate arranged adjacent the channel, and a voltage source electrically connected to the gate.

Abstract: An embodiment is a variable acoustic grating. Each of the local grating structures in an array of local grating structures has a variable impedance such that the impedance is modified, steering an ultrasonic signal impinging on the array in a reflection or transmission mode through a medium.

Abstract: An embodiment is a method and apparatus for coherent ultrasonic imaging. A receiver array has a plurality of receiver elements on a substrate to detect in-phase and quadrature components of a received signal corresponding to a transmit signal. Each of the receiver elements includes a receiver transducer and a thin-film transistor (TFT) receiver circuit. The TFT receiver circuit includes a quadrature detector having a mixer to mix a received signal with a reference signal in a composite bias signal that is distributed across the plurality of receiver elements. A transmitter is acoustically coupled to the plurality of receiver elements to generate the transmit signal through an imaging medium.

Abstract: An embodiment is a method and apparatus for ultrasonic contact imaging. A thin-film transistor (TFT) array is deposited on a substrate. A receiver having a plurality of receiver elements is deposited on the TFT array to receive a received signal. A transmitter adjacent to the receiver generates a transmit signal at an ultrasonic frequency. The transmit signal is reflected from a surface to produce a reflected signal. The received signal is a superposition of the transmit signal and the reflected signal as result of interference. The received signal is representative of differences in acoustic impedances across the surface.