Microchip Technology Inc.

Freescale Semiconductor,inc.

Yifeng Yang

Steven Bible

Yun Zhang

Michael Simmons

Péter Szilveszter Kovács

Yibin Xia

Dale Loia

David J Chapman

Dave Richkas

Steven R Bible

A radio arbitrator, electronic system, and method for wireless communication are disclosed in which at least two RF requests are received through a single radio module. The radio arbitrator performs predictive arbitration based on timing information of connection events to maintain a wireless connection, which is known prior to receiving RF requests including the connection events. Rf requests may be based on one or more of ZIGBEE&#xae;, Bluetooth&#xae; Low Energy, or Wi-Fi communication topologies.

Smart radio arbiter with conflict resolution based on timing predictability

A radio arbitrator, electronic system, and method for wireless communication are disclosed in which at least two RF requests are received through a single radio module. The radio arbitrator performs predictive arbitration based on timing information known for an RF request prior to receiving the RF request. Rf requests may be based on one or more of ZigBee, Bluetooth Low Energy, or WiFi communication topologies.

A method for operating a mesh network is described. The method includes using a protocol comprising an address and a payload, wherein the address and payload are restricted. The method also includes using a hash function to generate an address from a description, wherein the description uses ASCII characters, wherein a message uses the description as an address and wherein the description is transformed into the address using the hash function and added together with the message into the payload, assigning the generated address to a device, wherein the device is part of a mesh network, and in a transmission from a source to the device, providing the generated address within the payload.

Compression method and system for user friendly address in mesh networking

An inexpensive and low-power demand RF wireless device having data acquisition capabilities may be used for simple applications such as a standalone data repeater or a standalone data acquisition node without requiring a host microcontroller unit (MCU) or programmable logic for control of the wireless device.

Standalone radio frequency wireless device having data acquisition capabilities

Improved message range in a wireless network is achieved by each node performing an energy/noise scan to determine a receiving channel having the lowest noise and/or interference, e.g., best reception conditions, relative to the other channels available in the wireless network. Each node may thereafter scan available channels periodically to adjust its optimal receiving channel if the noise/interference environment changes on its present receiving channel, e.g., noise/interference on another channel is less then the noise on the present receiving channel. When a receiving channel is changed by a node, the wireless node may broadcast this information to notify its neighbor nodes of the change in its receiving channel.

Adaptive channel selection by wireless nodes for improved operating range

A method of characterizing a device under test (DUT) includes determining a goal function associated with a setup and hold time for the DUT. A minimum value for the goal function is determined by iteratively adjusting setup and hold times for input data to the DUT, and determining whether the DUT performs according to specifications. The minimum goal function value will reflect minimum setup and hold time values based on weights associated with the goal function. This allows the minimum setup and hold times for the DUT to be characterized with a small number of binary searches, improving the speed of the characterization process.

Setup and hold time characterization device and method

A method for determining polynomials to model circuit delay includes the step of determining one or more error areas in a characteristic map that exceed an error margin. Next, a current domain count is set to zero and selecting one error area of the one or more error areas is selected. A patch region that will contain the error area determined the patch region is then curve fitted and the current domain count is increased by one. The steps of repeating steps of selecting an error area, determine a patch, curve fitting within the patch, and increasing the domain count by one are repeated until there are no error area within the patch region. Then a previous domain region having the largest domain count and at last one error area is curve fitted without using data points in any of the domain regions greater than the previous domain region if the previous domain region contains at least one error area, repeating steps of selecting an error area, determine a patch, curve fitting within the patch, and increasing the domain count by one. Then, a domain region having at least one error area is selected as the previous domain region. The steps of curve fitting a previous domain level having at least one error area is repeated for all domain regions less than the previous domain region that has at least one error areas, until all error areas are removed from all domain regions. Additionally, the method can include using a nth order polynomial for curve fitting and associating the polynomial with the current domain region.

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Chandler, AZ, United States of America

Yifeng Yang