Allegro Microsystems, LLC

Ricardo Scheinkerman

Michael C Doogue

Nevenka Kozomora

Richard Vreeland

Hernán D Romero

Gerardo A Monreal

A sensor system includes a signal sensing block including at least two sensing elements. Each of the at least two sensing elements is configured to generate an output that represents a first parameter associated with the sensor system. The sensor system also includes a data acquisition block configured to convert the outputs of the at least two sensing elements into digital data to be retrieved by a data retrieval block. The digital data is stored in one or more data registers of the data acquisition block. The sensor system also includes a data freeze block configured to cause the one or more data registers to refrain from updating with new data while the data retrieval block is retrieving the stored digital data.

Methods and apparatus for sensor data consistency

A network slave device includes a transceiver for communicating over a communication bus in accordance with a point-to-point network protocol. The network slave device may include an address to identify the network slave device on the network. It may also include a communication circuit configured to process a command received by the transceiver and generate a reply for transmission over the communication bus if an address included in the command matches the address of the slave device. A master device communicating on the network may send commands including the address of the slave device in accordance with the point-to-point network protocol. In an embodiment, the point-to-point protocol is the SENT protocol.

Signaling between master and slave components using a shared communication node of the master component

A network slave device includes a transceiver for communicating over a communication bus in accordance with a point-to-point network protocol. The network slave device may have an address to identify the network slave device on the network. It may also have a communication circuit configured to process a series of commands received by the transceiver and respond to a command if a position of the command in the series of commands corresponds to the address of the network slave device. A master device communicating on the network may send the series of command in accordance with the point-to-point network protocol. In an embodiment, the point-to-point protocol is the SENT protocol.

A magnetic field sensor can include a plurality of magnetic field sensing elements; an angle processing circuit to generate an uncorrected x-y angle value representative of an angle of a magnetic field in an x-y plane, the uncorrected x-y angle value comprising a first angle error component; an angle error correction module to generate an x-y angle error value indicative of an error in the uncorrected x-y angle value, wherein the angle error correction module uses a sinusoidal error relationship, a sine look up table, and a coefficient table memory to determine the x-y angle error value; and a combining module to combine the uncorrected x-y angle value with the x-y angle error value. A similar method is used.

Growing community of inventors

Ciudad Autonoma de Buenos Aires, Argentina

Ricardo Scheinkerman